WO2010000093A1 - Method and apparatus for ranging in wireless relay network - Google Patents

Method and apparatus for ranging in wireless relay network Download PDF

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Publication number
WO2010000093A1
WO2010000093A1 PCT/CN2008/001255 CN2008001255W WO2010000093A1 WO 2010000093 A1 WO2010000093 A1 WO 2010000093A1 CN 2008001255 W CN2008001255 W CN 2008001255W WO 2010000093 A1 WO2010000093 A1 WO 2010000093A1
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Prior art keywords
ranging
station
base station
mobile station
relay
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PCT/CN2008/001255
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French (fr)
Chinese (zh)
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刘继民
郑武
金珊
沈钢
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上海贝尔阿尔卡特股份有限公司
阿尔卡特朗讯
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Application filed by 上海贝尔阿尔卡特股份有限公司, 阿尔卡特朗讯 filed Critical 上海贝尔阿尔卡特股份有限公司
Priority to PCT/CN2008/001255 priority Critical patent/WO2010000093A1/en
Priority to CN200880129439.7A priority patent/CN102047733B/en
Publication of WO2010000093A1 publication Critical patent/WO2010000093A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

In order to solve the problem appearing in the existing wireless relay network that global link information can not be obtained to select an access station because the ranging signal from a mobile station to a base station and the ranging signal from a mobile station to a relay station interfere with each other and the mobile station only transmits a ranging signal to the best access station in the local sense, a solution is provided, which includes: resources which do not interfere with each other are allocated for ranging communication from a mobile station to a base station and ranging communication from the mobile station to a relay station respectively. The mobile station transmits the ranging signal to the base station and the relay station respectively via the allocated resources which do not interfere with each other. The relay station processes the ranging signal from the mobile station and forwards the processed ranging signal to the base station. The base station obtains the ranging signal from the mobile station and the ranging signal processed by the relay station to select a better access station in the global sense for the mobile station. According to the solution, the base station can select a better access station in the global sense for the mobile station, which reduces the interference probability and decreases the transmission power of the transmitter in the mobile station and the control payload and delay, and benefits the quick and effective execution for network entry and handover between cells.

Description

无线中继网络中用于测距的方法和装置 技术领^或  Method and device for ranging in a wireless relay network
本发明涉及无线通信网络， 尤其涉及在包含中继站的无线通信 网络中进行测距的方法和装置。 背景技术  The present invention relates to wireless communication networks, and more particularly to a method and apparatus for ranging in a wireless communication network including a relay station. Background technique
随着用户对于无线网络需求的日益增长，无线网络对系统容量的要 求也越来越高，如何在频带资源有限的情况下不断提高系统性能是本领 域中的一个重要问题。 由于中继和多跳中继技术对于扩展无线网络覆盖 和增加系统吞吐量有着显著的作用， 因此得到了越来越广泛的关注。 在 2005年， IEEE802.16标准制定组织成立了 802.16j工作组， 802.16j在 IEEE802.16e标准的基础上提供了空中接口的多跳中继。 802.16j协议定 义了两种多跳中继工作模式： 透明中继与非透明中继， 这两种模式均保 持了移动站 ( Mobile Station )的后向兼容性 ( backward compatibilit ) 。 鉴于 802.16j的中继系统中，移动站无法识别出中继站（ Relay Station ) , 移动站只将其视为一个基站或是完全透明， 即不感知有中继站的存在。 为了解决这个问题， 802.16m 工作组提出了在前导符号 （preamble ) 中 插入中继的标识信息， 因此， 移动站即可以识别出中继站。  With the increasing demand for wireless networks by users, wireless network requirements for system capacity are also increasing. How to continuously improve system performance under limited band resources is an important issue in the field. Since relay and multi-hop relay technologies have a significant effect on extending wireless network coverage and increasing system throughput, they have received more and more attention. In 2005, the IEEE 802.16 standards development organization established the 802.16j working group. 802.16j provides multi-hop relay over the air interface based on the IEEE 802.16e standard. The 802.16j protocol defines two modes of multi-hop relay operation: transparent relay and non-transparent relay, both of which maintain the backward compatibilit of the mobile station. In the 802.16j relay system, the mobile station cannot recognize the relay station, and the mobile station only regards it as a base station or is completely transparent, that is, it does not perceive the existence of the relay station. In order to solve this problem, the 802.16m working group proposed to insert the identification information of the relay in the preamble, so that the mobile station can recognize the relay station.
在现有的 IEEE 802.16J的多中继网络的非透明中继模式下， 移动站 会收到来自基站的广播消息和来自中继站的广播消息。 其中， 来自基站 的广播消息中包含基站在一个上行子帧中分配的测距资源块 （ ranging slot ) 的指示信息， 用以移动站根据该测距资源块向基站发送上行的测 距信号， 其中， 资源块为基站在测距子信道（ranging subchannel ) 中随 机选择的一个时频资源；来自中继站的广播消息中包含中继站在上行子 帧中分配的一个测距资源块，用以移动站 居该测距资源块向该中继站 发送上行的测距信号， 其中， 资源块为中继站在测距子信道中随机选择 的一个时频资源。 因为中继站工作于非透明中继的模式下， 因此， 移动 站将中继站视为一个基站， 在移动站看来， 中继站和基站的地位是一样 的， 于是移动站根据一定的策略， 仅仅选择其中之一发送测距信号， 例 如选择中继站为目标接入站，则以中继站所分配的测距子信道中的随机 选择的对应资源块发送测距信号， 以此达到与所选的中继站或基站建立 上行同步的目的。中继站接收到测距信号后，生成相应的测距报告消息， 并发回给基站； 基站接收到测距报告消息后， 就将该中继站分配给该移 动站作为其接入站点， 而不会考虑其他全局更优的分配方案。 该方案的 缺点在于： 移动站的接入站点仅仅由移动站基于局部信息进行选择， 不 能结合整个网络的状况进行判断， 因此比较片面，灵活性比较差。此外， 在扩展小区覆盖范围的场景中， 现有测距方法通常不能正常工作。 当第 一移动站位于扩展小区覆盖范围的区域内，该第一移动站只能通过非透 明的中继站与基站进行通信。处在小区边缘的该基站直接覆盖范围内的 且与第一移动站距离较近的第二移动站以较大功率发送的测距信号太 大，淹没了第一移动站向非透明中继站所发送的测距信号而无法被非透 明中继站正确接收。 In the non-transparent relay mode of the existing IEEE 802.16J multi-relay network, the mobile station receives a broadcast message from the base station and a broadcast message from the relay station. The broadcast message from the base station includes indication information of a ranging slot allocated by the base station in an uplink subframe, where the mobile station sends an uplink ranging signal to the base station according to the ranging resource block, where The resource block is a time-frequency resource randomly selected by the base station in the ranging subchannel; the broadcast message from the relay station includes a ranging resource block allocated by the relay station in the uplink subframe, and is used by the mobile station. The ranging resource block sends an uplink ranging signal to the relay station, where the resource block is a time-frequency resource randomly selected by the relay station in the ranging subchannel. Since the relay station operates in a non-transparent relay mode, the mobile station regards the relay station as one base station, and in the mobile station's view, the relay station and the base station have the same status. Then, the mobile station selects only one of them to transmit the ranging signal according to a certain policy, for example, selecting the relay station as the target access station, and transmitting the ranging according to the randomly selected corresponding resource block in the ranging subchannel allocated by the relay station. Signal, in order to achieve the purpose of establishing uplink synchronization with the selected relay station or base station. After receiving the ranging signal, the relay station generates a corresponding ranging report message and sends it back to the base station; after receiving the ranging report message, the base station assigns the relay station to the mobile station as its access station, without considering other A globally better allocation scheme. The disadvantage of this scheme is that the access station of the mobile station is only selected by the mobile station based on local information, and cannot be judged based on the condition of the entire network, so the comparison is one-sided and the flexibility is relatively poor. In addition, existing ranging methods generally do not work properly in scenarios where extended cell coverage is extended. When the first mobile station is located in the area of the extended cell coverage, the first mobile station can only communicate with the base station through the non-transparent relay station. The second mobile station at the edge of the cell that is directly in coverage of the base station and is closer to the first mobile station is too large to transmit the ranging signal, and the first mobile station is flooded to the non-transparent relay station. The ranging signal cannot be correctly received by the non-transparent relay station.
而对于 IEEE 802.16j的多中继网络的透明中继模式下， 只有基站发 送广播消息， 其中， 来自基站的广播消息中包含基站在上行子帧内分配 的测距子信道的指示信息， 移动站随机选择其中一个测距资源块 ( ranging slot ) , 用以移动站根据该测距资源块发送上行的测距信号 ( ranging signal ) 。 而中继站不发送广播消息， 因此， 中继站对于移动 站而言是透明的。 当基站发送广播消息时， 中继站和移动站均在公共信 道上收到来自基站的广播消息，然后移动站再根据其在基站的广播消息 中选取的测距资源块指示信息， 以该资源块发送测距信号， 同时， 中继 站也在该资源块上进行主动地检测，若中继站也收到来自移动站的测距 信号， 其将经过处理的测距报告消息报告给基站。 该方案的缺点在于： 当中继站工作在透明模式下，移动站使用共有的测距子信道发送同一测 距信号， 基站和中继站均在此共有的测距子信道上接收该测距信号， 因 此， 与基站之间信号衰落较小的移动站会以较低功率发送的测距信号， 使得该测距信号不能被与本移动站之间衰落较大的中继站正确接收， 同 理， 与中继站之间信号衰落较小的移动站会以较低功率发送的测距信 号， 使得该测距信号不能被与本移动站之间衰落较大的基站正确接收。 因此， 移动站会多次递增移动站发射机的发射功率来重发测距信号， 这 会带来额外的控制开销和长时间时延， 影响了网络进入和小区间切换 等， 而本领域技术人员理解， 对于网络进入和小区间切换， 获取尽可能 短的延时是所期望的。 发明内容 In the transparent relay mode of the IEEE 802.16j multi-relay network, only the base station sends a broadcast message, where the broadcast message from the base station includes indication information of the ranging subchannel allocated by the base station in the uplink subframe, and the mobile station One of the ranging slots is randomly selected for the mobile station to transmit an uplink ranging signal according to the ranging resource block. The relay station does not transmit broadcast messages, and therefore, the relay station is transparent to the mobile station. When the base station sends a broadcast message, both the relay station and the mobile station receive the broadcast message from the base station on the common channel, and then the mobile station sends the resource according to the ranging resource block indication information selected in the broadcast message of the base station. The ranging signal, at the same time, the relay station also actively detects on the resource block. If the relay station also receives the ranging signal from the mobile station, it reports the processed ranging report message to the base station. The disadvantages of the scheme are: When the relay station operates in the transparent mode, the mobile station transmits the same ranging signal using the shared ranging subchannel, and the base station and the relay station receive the ranging signal on the shared ranging subchannel, therefore, A mobile station with a small signal fading between the base station and the base station transmits the ranging signal at a lower power, so that the ranging signal cannot be correctly received by the relay station with a large fading between the mobile station, and similarly, with the relay station. A distance measuring signal sent by a mobile station with a small signal fading at a lower power No., so that the ranging signal cannot be correctly received by the base station with a large fading between the mobile station. Therefore, the mobile station will incrementally increase the transmit power of the mobile station transmitter to retransmit the ranging signal, which will bring additional control overhead and long time delay, affecting network entry and inter-cell handover, etc., and the prior art Personnel understand that for network entry and inter-cell handover, it is desirable to obtain the shortest possible delay. Summary of the invention
为克服现有技术中存在的上述问题， 本发明提供了一种新的测 距方案， 具体如下： 无线通信网络中， 分别为移动站至基站和移动 站至中继站传送测距信号分配了第一通信资源和第二通信资源， 其 中移动站根据第一通信资源发送的测距信号不会对根据第二通信资 源发送的测距信号造成干扰， 并且移动站根据第二通信资源发送的 测距信号不会对根据第一通信资源发送的测距信号造成干扰。 在该 无线网络中， 移动站分别根据第一通信资源和第二通信资源向基站 和中继站发送测距信号。 中继站接收来自移动站的根据第二通信资 源所发送的第二测距信号， 而后根据第二测距信号的测量结果， 生 成测距报告消息， 并向基站发送所述测距报告消息。 基站获取来自 移动站的以第一通信资源发送的测距信号， 和来自中继站的用于报 告移动站以第二通信资源发给中继站的第二测距信号的测距报告消 息。 根据第一测距信号的测量结果和测距报告消息， 按照预定规则 选择本基站或该中继站向移动站发送测距应答消息， 并将所选择的 本基站或该中继站作为所述移动站的接入站。  In order to overcome the above problems existing in the prior art, the present invention provides a new ranging scheme, which is specifically as follows: In a wireless communication network, a first is allocated for transmitting a ranging signal from a mobile station to a base station and a mobile station to a relay station, respectively. a communication resource and a second communication resource, wherein the ranging signal transmitted by the mobile station according to the first communication resource does not cause interference to the ranging signal transmitted according to the second communication resource, and the ranging signal transmitted by the mobile station according to the second communication resource No interference is caused to the ranging signal transmitted according to the first communication resource. In the wireless network, the mobile station transmits ranging signals to the base station and the relay station based on the first communication resource and the second communication resource, respectively. The relay station receives the second ranging signal transmitted from the mobile station according to the second communication resource, and then generates a ranging report message according to the measurement result of the second ranging signal, and transmits the ranging report message to the base station. The base station acquires a ranging signal transmitted from the mobile station with the first communication resource, and a ranging report message from the relay station for reporting the second ranging signal sent by the mobile station to the relay station with the second communication resource. And according to the measurement result of the first ranging signal and the ranging report message, the base station or the relay station is selected to send a ranging response message to the mobile station according to a predetermined rule, and the selected local base station or the relay station is used as the mobile station Inbound.
根据本发明的第一方面， 提供了一种在无线通信网络的移动站 中用于与基站和中继站进行测距操作的方法， 其中， 包括以下步骤： 当需要向所述基站和所述基站所辖的一个或多个中继站发送测距信 号时， 获取用于指示向所述基站发送测距信号的第一通信资源的第 一资源指示信息和向所述一个或多个中继站发送测距信号的一个或 多个第二通信资源的第二资源指示信息， 其中， 所述第一通信资源 与所述第二通信资源不同； 根据所述第一通信资源发送第一测距信 号并根据所述第二通信资源发送第二测距信号。 According to a first aspect of the present invention, there is provided a method for performing a ranging operation with a base station and a relay station in a mobile station of a wireless communication network, wherein the method includes the following steps: when it is required to the base station and the base station And acquiring, by the one or more relay stations, the first resource indication information for indicating the first communication resource for transmitting the ranging signal to the base station, and transmitting the ranging signal to the one or more relay stations Second resource indication information of the one or more second communication resources, where the first communication resource is different from the second communication resource; sending the first ranging information according to the first communication resource And transmitting a second ranging signal according to the second communication resource.
根据本发明的第二方面， 提供了一种在无线通信网络的基站中 用于与移动站和中继站进行测距操作的方法， 其中， 包括以下步驟: 获取来自所述移动站的以与本基站对应的第一通信资源发送的第一 测距信号， 和来自一个或多个中继站的用于报告所述移动站以与所 述一个或多个中继站对应的第二通信资源发给所述一个或多个中继 站的第二测距信号的测距报告消息， 其中， 所述第一通信资源与所 述第二通信资源不同； 根据所述第一测距信号和所述测距报告消息 , 按照预定规则选择所述本基站或所述一个或多个中继站向所述移动 站发送测距应答消息， 并将所选择的所述本基站或所述一个或多个 中继站中的一个作为所述移动站的接入站。  According to a second aspect of the present invention, there is provided a method for performing a ranging operation with a mobile station and a relay station in a base station of a wireless communication network, comprising the steps of: acquiring a base station from the mobile station with the base station a first ranging signal transmitted by the corresponding first communication resource, and a second communication resource from the one or more relay stations for reporting the mobile station to correspond to the one or more relay stations to the one or a ranging report message of a second ranging signal of the plurality of relay stations, wherein the first communication resource is different from the second communication resource; according to the first ranging signal and the ranging report message, according to a predetermined Selecting, by the base station or the one or more relay stations, a ranging response message to the mobile station, and using one of the selected base station or the one or more relay stations as the mobile station Access station.
根据本发明的第三方面， 提供了一种在无线通信网络的移动站 中用于与基站和中继站进行测距操作的第一操作装置， 其中， 包括: 第一获取装置， 用于当需要向所述基站和所述基站所辖的一个或多 个中继站发送测距信号时， 获取用于指示向所述基站发送测距信号 的第一通信资源的第一资源指示信息和向所述一个或多个中继站发 送测距信号的一个或多个第二通信资源的第二资源指示信息， 其中, 所述第一通信资源与所述第二通信资源不同； 第一发送装置， 用于 以所述第一通信资源发送第一测距信号并以所述第二通信资源发送 第二测距信号。  According to a third aspect of the present invention, a first operating device for performing a ranging operation with a base station and a relay station in a mobile station of a wireless communication network, includes: a first obtaining device, configured to When the base station and the one or more relay stations under the control of the base station send the ranging signal, acquire the first resource indication information for indicating the first communication resource that sends the ranging signal to the base station, and to the one or a plurality of relay stations transmitting second resource indication information of one or more second communication resources of the ranging signal, where the first communication resource is different from the second communication resource; and the first sending device is configured to The first communication resource transmits a first ranging signal and transmits a second ranging signal with the second communication resource.
根据本发明的第四方面， 提供了一种在无线通信网络的基站中 用于与移动站和中继站进行测距操作的第二操作装置， 其中， 包括 以下步骤： 第二获取装置， 用于获取来自所述移动站的以与本基站 对应的第一通信资源发送的第一测距信号， 和来自一个或多个中继 站的用于报告所述移动站以与所述一个或多个中继站对应的第二通 信资源发给所述一个或多个中继站的第二测距信号的测距报告消 息， 其中， 所述第一通信资源与所述第二通信资源不同； 接入控制 装置， 用于根据所述第一测距信号和所述测距报告消息， 按照预定 规则选择所述本基站或所述一个或多个中继站向所述移动站发送测 距应答消息， 并将所选择的所述本基站或所述一个或多个中继站中 的一个作为所述移动站的接入站。 According to a fourth aspect of the present invention, there is provided a second operating device for performing a ranging operation with a mobile station and a relay station in a base station of a wireless communication network, wherein the method includes the following steps: a first ranging signal transmitted from the mobile station with a first communication resource corresponding to the base station, and a signal from one or more relay stations for reporting the mobile station to correspond to the one or more relay stations a second communication resource is sent to the ranging report message of the second ranging signal of the one or more relay stations, where the first communication resource is different from the second communication resource; and the access control device is configured to The first ranging signal and the ranging report message, selecting the base station or the one or more relay stations to send the measurement to the mobile station according to a predetermined rule From the response message, and selecting one of the selected base station or the one or more relay stations as the access station of the mobile station.
根据本发明的第五方面， 提供一种在无线通信网络中用于基站、 中继站及移动站之间的测距操作的方法， 其中， 包括以下步骤： A. 当需要向所述基站和所述基站所辖的一个或多个中继站发送测距信 号时， 所述移动站获取用于指示向所述基站发送测距信号的第一通 信资源的第一资源指示信息和向所述一个或多个中继站发送测距信 号的一个或多个第二通信资源的第二资源指示信息， 其中， 所述第 一通信资源与所述第二通信资源不同； B.所述移动站根据所述第一 通信资源发送第一测距信号并根据所述第二通信资源发送第二测距 信号； 所述基站获取来自所述移动站的以与本基站对应的第一通信 资源发送的第一测距信号； 所述步骤 B之后还包括： I.所述一个或多 个中继站中的每个中继站获取来自所述移动站的以与所述中继站相 对应的第二通信资源发送的所述第二测距信号； II. 所述一个或多个 中继站中的每个中继站根据其所获取的第二测距信号， 向所述基站 发送测距报告消息； III. 所述基站获得来自所述各个中继站的测距报 告消息； 在所述步骤 ΠΙ之后且在所述步骤 C之后， 还包括： 所述基 站根据所述第一测距信号和所述测距报告消息， 按照预定规则选择 所述本基站或所述一个或多个中继站来向所述移动站发送测距应答 消息， 并将所选择的所述本基站或所述一个或多个中继站中的一个 作为所述移动站的接入站。  According to a fifth aspect of the present invention, there is provided a method for ranging operation between a base station, a relay station and a mobile station in a wireless communication network, comprising the steps of: A. when required to the base station and said When the one or more relay stations under the control of the base station send the ranging signal, the mobile station acquires first resource indication information for indicating the first communication resource that sends the ranging signal to the base station, and to the one or more The relay station transmits second resource indication information of one or more second communication resources of the ranging signal, where the first communication resource is different from the second communication resource; B. the mobile station is according to the first communication Transmitting, by the resource, a first ranging signal, and transmitting, according to the second communication resource, a second ranging signal; the base station acquiring, by the mobile station, a first ranging signal that is sent by the first communication resource corresponding to the local base station; The step B further includes: I. each of the one or more relay stations acquires a second communication resource from the mobile station to correspond to the relay station Transmitting the second ranging signal; II. each of the one or more relay stations transmitting a ranging report message to the base station according to the acquired second ranging signal; III. Obtaining a ranging report message from the respective relay stations; after the step ΠΙ and after the step C, the method further includes: the base station according to the first ranging signal and the ranging report message, according to a predetermined Selecting the base station or the one or more relay stations to send a ranging response message to the mobile station, and using one of the selected base station or the one or more relay stations as the mobile Station's access station.
本发明提供了一种合理的测距方法， 移动站向基站和中继站两 者， 优选地， 向多个不同中继站， 都发送测距信号， 继而使得基站 能够对移动站周围的中继站部署状况有全面的了解， 并为移动站选 择全局较优的接入站点； 同时， 本发明能够将移动站与基站及移动 站与中继站进行测距的通信资源区分开， 优选的， 本发明还能将移动 站向各个中继站发送测距信号的通信资源区分开， 使其互不干扰， 这 有效利用移动站发射机的发射功率， 减小控制开销和时延， 使移动站能 够高效快速地实施网络进入和小区间切换过程等。 附图说明 The present invention provides a reasonable ranging method, in which a mobile station transmits a ranging signal to both a base station and a relay station, preferably to a plurality of different relay stations, which in turn enables the base station to comprehensively deploy the relay stations around the mobile station. Understand, and select a globally preferred access site for the mobile station; at the same time, the present invention can distinguish the mobile station from the base station and the mobile station and the relay station for ranging communication resources. Preferably, the present invention can also The communication resources for transmitting the ranging signals to the respective relay stations are separated so as not to interfere with each other, which effectively utilizes the transmission power of the mobile station transmitters, reduces control overhead and delay, and enables the mobile station to implement network access and cells efficiently and quickly. Switching process, etc. DRAWINGS
通过参照附图阅读以下所作的对非限制性实施例的详细描述，本发 明的其它特征、 目的和优点将会变得更明显。  Other features, objects, and advantages of the present invention will become apparent from the Detailed Description of the Description.
图 1为根据本发明的一个具体实施例的网络拓朴结构示意图； 图 2为才艮据本发明一个具体实施例， 无线通信网络的移动站中用 于与基站和中继站进行测距操作的方法的流程图；  1 is a schematic diagram of a network topology structure according to an embodiment of the present invention; FIG. 2 is a diagram of a method for performing ranging operation with a base station and a relay station in a mobile station of a wireless communication network according to an embodiment of the present invention; Flow chart
图 3为才艮据本发明一个具体实施例， 无线通信网络的移动站中用 于与基站和中继站进行测距操作的第一操作装置的装置框图；  3 is a block diagram of a device for a first operating device for performing a ranging operation with a base station and a relay station in a mobile station of a wireless communication network according to an embodiment of the present invention;
图 4是才艮据本发明的一个具体实施例，无线通信网络的基站中用于 与移动站和中继站进行测距操作的第二操作装置的装置框图。  4 is a block diagram of a second operating device for performing ranging operations with a mobile station and a relay station in a base station of a wireless communication network in accordance with an embodiment of the present invention.
在附图中，相同和相似的附图标记代表相同或相似的装置或方法 步骤。 具体实施方式  In the figures, identical and similar reference numerals indicate the same or similar device or method steps. detailed description
图 1为才 居本发明的一个具体实施例的网络拓朴结构示意图。如图 1 is a schematic diagram of a network topology structure in accordance with a specific embodiment of the present invention. As shown
1所示， 此处的中继站 2在基站 1的覆盖范围以内， 移动站 3既可以经 由中继站 2与基站 1通信， 又可以不经由中继站 2直接与基站 1通信。 As shown in Fig. 1, the relay station 2 herein is within the coverage of the base station 1, and the mobile station 3 can communicate with the base station 1 via the relay station 2 or directly with the base station 1 without the relay station 2.
应注意， 图 1所示出的 WiMAX网络仅为示例， 本发明并不局限于 WiMAX网络， 任何支持基站和中继站可以分别在公共广播信道上发送 广播消息使移动站能够区分基站和中继站的，并可以支持移动站以互不 千扰的通信资源向基站和中继站发送测距信号的无线通信网络，例如正 在制定需求及标准规范的 3GPP LTE-Advanced无线通信网络，都可以适 用于本发明。  It should be noted that the WiMAX network shown in FIG. 1 is merely an example, and the present invention is not limited to a WiMAX network, and any supporting base station and relay station can respectively transmit a broadcast message on a common broadcast channel to enable a mobile station to distinguish between a base station and a relay station, and A wireless communication network that can support a mobile station to transmit ranging signals to base stations and relay stations with mutually uninterrupted communication resources, such as a 3GPP LTE-Advanced wireless communication network that is developing requirements and standard specifications, can be applied to the present invention.
图 2是才艮据本发明一个具体实施例， 无线通信网络的移动站 3 中 用于与基站 1和中继站 2进行测距操作的方法的流程图。  2 is a flow chart of a method for performing ranging operations with base station 1 and relay station 2 in mobile station 3 of a wireless communication network in accordance with an embodiment of the present invention.
以下参考图 2结合图 1对本发明的系统方法流程图进行详细描述。 在步骤 S1中， 基站 1发送第一广播消息， 在步骤 S2中， 中继站 2 发送第二广播消息。其中第一广播消息包含用于指示移动站 3用来向基 站 1发送上行测距信号的第一通信资源的第一资源指示信息，第二广播 消息包含用于指示移动站 3用来向中继站 2发送上行测距信号的第二通 信资源的第二资源指示信息。 本领域技术人员应能理解， 此处步骤 S1 和步骤 S2之间并没有先后顺序， 此处的标号 Sl、 S2仅为示例。 基站 1 和中继站 2可以利用不同或相同的时隙或子载波， 同时或交替地在公共 广播信道上发送第一广播消息和第二广播消息。 A flowchart of the system method of the present invention will now be described in detail with reference to FIG. 2 in conjunction with FIG. In step S1, the base station 1 transmits a first broadcast message, and in step S2, the relay station 2 transmits a second broadcast message. The first broadcast message includes first resource indication information for indicating a first communication resource used by the mobile station 3 to send an uplink ranging signal to the base station 1, and the second broadcast The message includes second resource indication information for indicating a second communication resource used by the mobile station 3 to transmit an uplink ranging signal to the relay station 2. It should be understood by those skilled in the art that there is no order between step S1 and step S2, and the reference numerals S1 and S2 herein are merely examples. The base station 1 and the relay station 2 can transmit the first broadcast message and the second broadcast message simultaneously or alternately on the common broadcast channel using different or identical time slots or subcarriers.
在一个实施例中， 基站 1将第一资源集合中的多个资源块（也即第 一通信资源） （其中， 本说明书使用 "资源块，， 用以表示互不干扰的通 信资源，例如不同时隙、子载波等通信资源）的相关指示信息发送出去； 中继站 2将第二资源集合中的多个资源块（也即第二通信资源）的相关 指示信息发送出去； 第一资源集合与第二资源集合完全不同， 因此， 也 保证了基站 1和中继站 2不会将相同的时频资源分配给移动站 3作为发 送上行测距信号的时频资源。移动站 3 自己分别从第一资源集合中的多 个资源块中随机选择一个自己与基站 1进行通信的第一时频资源，减少 与其他移动站使用的相同资源块的概率；并从第二资源集合中的多个资 源块中随机选择一个自己与中继站 2进行通信的第二时频资源，减少与 其他移动站使用的相同资源块的概率。 在另一种情况下， 基站 1只会从 第一资源集合， 例如， 从资源块编号 0-9的资源块中随机选择其中的一 个资源块作为用于移动站 3 向基站 1 发送上行测距信号的第一时频资 源， 而中继站 2只会从第二资源集合（例如， 资源块编号 10-20的资源 块）随机选择其中的一个资源作为用于移动站 3向中继站 2发送上行测 距信号的第二时频资源，第一资源集合与第二资源集合完全不同，因此， 也保证了基站 1和中继站 2不会将相同的时频资源分配给移动站 3作为 发送上行测距信号的时频资源。例如基站 1随机选择了第 5号资源块（也 即第一通信资源） ， 而中继站 2随机选择了第 17号资源块（也即第二 通信资源）分别作为移动站 3发送上行测距信号的资源， 则基站 1和中 继站 2分别将指示第一时频资源的资源块编号 5 (即第一资源指示信 息） ， 和指示第二时频资源的资源块编号 17 (即第二资源指示信息） 的指示信息在广播消息中的 UL-MAP， 也即上行映射中发送出去。  In an embodiment, the base station 1 uses a plurality of resource blocks (that is, the first communication resources) in the first resource set (wherein the specification uses "resource blocks" to indicate communication resources that do not interfere with each other, for example, not The related indication information of the communication resource such as the slot and the subcarrier is sent out; the relay station 2 sends the related indication information of the multiple resource blocks (that is, the second communication resource) in the second resource set; the first resource set and the first resource set The two resource sets are completely different, and therefore, it is also ensured that the base station 1 and the relay station 2 do not allocate the same time-frequency resource to the mobile station 3 as the time-frequency resource for transmitting the uplink ranging signal. The mobile station 3 itself separately from the first resource set Randomly selecting one of the plurality of resource blocks in the first time-frequency resource that communicates with the base station 1 to reduce the probability of using the same resource block used by other mobile stations; and randomly selecting from the plurality of resource blocks in the second resource set Selecting a second time-frequency resource that communicates with the relay station 2 itself, reducing the probability of using the same resource block as that used by other mobile stations. In this case, the base station 1 randomly selects one of the resource blocks from the first resource set, for example, from the resource blocks of resource block numbers 0-9, as the first for the mobile station 3 to transmit the uplink ranging signal to the base station 1. One time-frequency resource, and the relay station 2 only randomly selects one of the resources from the second resource set (for example, the resource block of the resource block number 10-20) as the first for the mobile station 3 to transmit the uplink ranging signal to the relay station 2. The second time-frequency resource, the first resource set is completely different from the second resource set, and therefore, it is also ensured that the base station 1 and the relay station 2 do not allocate the same time-frequency resource to the mobile station 3 as the time-frequency resource for transmitting the uplink ranging signal. For example, the base station 1 randomly selects the fifth resource block (that is, the first communication resource), and the relay station 2 randomly selects the 17th resource block (that is, the second communication resource) as the mobile station 3 to transmit the uplink ranging signal. And the base station 1 and the relay station 2 respectively indicate the resource block number 5 (ie, the first resource indication information) of the first time-frequency resource, and the second time-frequency resource. The indication information of the resource block number 17 (i.e., the second resource indication information) is transmitted in the UL-MAP in the broadcast message, that is, in the uplink map.
移动站 3在接收到来自基站 1的广播消息和来自中继站 2的广播消 息之前， 首先分别接收到来自基站 1和中继站 2的广播信号。 广播信号 包括前导符号 （preamble ) , 标识小区的类型的信息， 也即表示该小区 是基站小区还是中继站小区， 以及小区标识号等。 由于中继站 2所发送 的前导符号中插入了不同于基站 1的中继的标识信息， 因此， 移动站 3 即可以从该标识信息中识别出该广播消息来源于中继站 2。 The mobile station 3 receives the broadcast message from the base station 1 and the broadcast message from the relay station 2 Before the information, the broadcast signals from the base station 1 and the relay station 2 are received first. The broadcast signal includes a preamble, information identifying the type of the cell, that is, whether the cell is a base station cell or a relay station cell, and a cell identification number. Since the identification information of the relay different from the base station 1 is inserted into the preamble symbol transmitted from the relay station 2, the mobile station 3 can recognize from the identification information that the broadcast message originates from the relay station 2.
前导符号是用于移动站做下行同步的参考信号，是一个特殊的时域 周期信号， 因此， 移动站 3可以通过前导符号， 检测下行信号的质量。 本领域技术人员理解， 移动站还可以使用其他方式获取下行信号的质 量， 在此不再赘述。  The preamble symbol is a reference signal used by the mobile station for downlink synchronization, and is a special time domain periodic signal. Therefore, the mobile station 3 can detect the quality of the downlink signal through the preamble symbol. It is understood by those skilled in the art that the quality of the downlink signal can be obtained by the mobile station in other manners, and details are not described herein again.
若移动站 3接收到的来自基站 1和中继站 2的广播信号， 例如， 为 前导符号， 其功率大于一定的阈值， 例如， 移动站 3接收的分别来自基 站 1和中继站 2的前导符号的接收功率均大于 -85dBm, 则进入步骤 S3 , 应注意， 前述功率阈值仅作示例， 本领域技术人员应可根据实际情况选 择其他功率阈值。 移动站 3根据前导符号进行下行同步后， 开始解析基 站 1和中继站 2在公共信道上利用不同时频资源分别发送的第一广播消 息和第二广播消息， 以分别获取第一资源指示信息， 以及第二资源指示 信息。 优选地， 在一个实施例中， 基站 1和中继站 2分别将第一资源集 合中的多个资源块和第二资源集合中的多个资源块的指示信息在第一 广播消息和第二广播消息中发送给移动站 3， 则移动站 3分别从第一资 源集合中的多个资源块和第二资源集合中的多个资源块随机选择一个 第一资源块和一个第二资源块进行发送， 因为移动站 3不知道其他移动 站选择的时频资源位置， 只能随机选择一个时频资源发送上行测距信 号， 以减少与其他移动站使用的相同资源块的概率。 在本实施例中， 为 简明起见， 移动站 3选择以第 5号资源块发送第一测距信号， 以第 17 号资源块发送第二测距信号。 在另一个实施例中， 基站 1和中继站 2分 别随机选择了第 5号资源块和第 17号资源块， 则移动站 3通过解析第 一广播消息和第二广播消息，知晓其应以第 5号资源块向基站 1发送第 一测距信号， 并知晓其应以第 17号资源块向移动站 2发送第二测距信 号。 在步骤 S4中， 移动站 3以第 5号时频资源发送第一测距信号； 在 步骤 S5中， 移动站 3以第 17号资源块发送第二测距信号。 本领域技术 人员可以理解， 步驟 S4与步骤 S5并没有明显的先后顺序， 此处的序号 S4和 S5仅为一种示例。 其中， 第一测距信号与第二测距信号相同， 均 为移动站 3从已知的 CDMA码集中随机选择的， 用来标识自己的标识 信息。 若移动站 3 采用等幅零自相关序列 （CAZAC ) 的编码格式， 则 移动站 3从已知的 CAZAC码集中随机选择的其中之一， 用来标识自己 的标识信息。 CDMA码集和 CAZAC码集中的所有码是基站 1和中继站 2都已知晓的。 If the broadcast signal received by the mobile station 3 from the base station 1 and the relay station 2, for example, is a preamble, its power is greater than a certain threshold, for example, the received power of the preamble received by the mobile station 3 from the base station 1 and the relay station 2, respectively. If the value is greater than -85 dBm, the process proceeds to step S3. It should be noted that the foregoing power threshold is only an example, and those skilled in the art should select other power thresholds according to actual conditions. After the downlink synchronization is performed according to the preamble symbol, the mobile station 3 starts to parse the first broadcast message and the second broadcast message respectively sent by the base station 1 and the relay station 2 by using different time-frequency resources on the common channel, to respectively acquire the first resource indication information, and The second resource indication information. Preferably, in an embodiment, the base station 1 and the relay station 2 respectively indicate indication information of the plurality of resource blocks in the first resource set and the plurality of resource blocks in the second resource set in the first broadcast message and the second broadcast message, respectively. Transmitted to the mobile station 3, the mobile station 3 randomly selects a first resource block and a second resource block from a plurality of resource blocks in the first resource set and a plurality of resource blocks in the second resource set, respectively. Since the mobile station 3 does not know the time-frequency resource location selected by other mobile stations, only one time-frequency resource can be randomly selected to transmit the uplink ranging signal to reduce the probability of using the same resource block used by other mobile stations. In the present embodiment, for the sake of simplicity, the mobile station 3 selects to transmit the first ranging signal with the No. 5 resource block and the second ranging signal with the No. 17 resource block. In another embodiment, the base station 1 and the relay station 2 randomly select the resource block No. 5 and the resource block No. 17, respectively, and the mobile station 3 knows that it should be the fifth by analyzing the first broadcast message and the second broadcast message. The number resource block transmits a first ranging signal to the base station 1, and knows that it should transmit the second ranging signal to the mobile station 2 in the 17th resource block. In step S4, the mobile station 3 transmits the first ranging signal with the No. 5 time-frequency resource; in step S5, the mobile station 3 transmits the second ranging signal with the No. 17 resource block. Those skilled in the art can understand that there is no obvious sequence in step S4 and step S5, and the serial numbers S4 and S 5 herein are only an example. The first ranging signal is the same as the second ranging signal, and is selected by the mobile station 3 from the known CDMA code set to identify its own identification information. If the mobile station 3 adopts the coding format of the equal amplitude zero autocorrelation sequence (CAZAC), the mobile station 3 randomly selects one of the known CAZAC code sets to identify its own identification information. All codes in the CDMA code set and the CAZAC code set are known to both the base station 1 and the relay station 2.
移动站 3向基站 1和中继站 2发送测距信号， 例如依 CDMA码或 The mobile station 3 transmits a ranging signal to the base station 1 and the relay station 2, for example, according to the CDMA code or
CAZAC序列生成的信号， 所使用的发射功率可以通过下行信号质量进 行估计。 The signal generated by the CAZAC sequence can be estimated by the downlink signal quality.
优选地， 广播消息中还包括等效全向辐射功率 （EIRP), 在步骤 S3 中，移动站 3获取的来自基站 1和中继站 2的第一广播消息和第二广播 消息中分别包含的基站 1的第一 EIRP值和中继站 2的第二 EIRP值， EIRP值即为基站 1和中继站 2的发射功率、 天线增益以及发射机到天 线物理连接的信号损耗之和。 此外， 根据移动站 3接收到第一广播消息 和第二广播消息所用的第一接收功率和第二接收功率， 则用第一 EIRP 值与第一接收功率的差值， 即可估计出上行的移动站 3发送第一测距信 号的发射功率； 而用第二 EIRP值与第二接收功率的差值， 即可估计出 上行的移动站 3发送第二测距信号的发射功率。 此处， 我们是做了这样 的等效， 即上行信道与下行信道是对称的， 因此可以用下行链路质量来 估计上行的链路质量。 本领域技术人员可以理解， 在时分双工 （TDD ) 系统中， 上、 下行链路处于同一频段不同时隙， 因此， 上下行信道基本 对称。 而对于频分双工 （FDD ) 系统， 虽然上、 下行链路的频段不同， 但是与工作频率相比可以忽略不计， 因此， 也近似地将视为将下行的路 径损耗作为估计的上行的路径损耗。  Preferably, the broadcast message further includes an equivalent isotropic radiated power (EIRP), and in step S3, the base station 1 included in the first broadcast message and the second broadcast message from the base station 1 and the relay station 2 acquired by the mobile station 3 respectively The first EIRP value and the second EIRP value of the relay station 2, the EIRP value is the sum of the transmission power of the base station 1 and the relay station 2, the antenna gain, and the signal loss of the physical connection of the transmitter to the antenna. In addition, according to the first received power and the second received power used by the mobile station 3 to receive the first broadcast message and the second broadcast message, the difference between the first EIRP value and the first received power may be used to estimate the uplink. The mobile station 3 transmits the transmit power of the first ranging signal; and by using the difference between the second EIRP value and the second received power, the uplink mobile station 3 can estimate the transmit power of the second ranging signal. Here, we have made the equivalent that the uplink channel and the downlink channel are symmetric, so the downlink quality can be estimated by the downlink quality. Those skilled in the art can understand that in a time division duplex (TDD) system, the uplink and downlink are in different time slots in the same frequency band, and therefore, the uplink and downlink channels are basically symmetrical. For frequency division duplex (FDD) systems, although the frequency bands of the uplink and downlink are different, they are negligible compared with the operating frequency. Therefore, they are also approximated as the path of the downlink with the estimated path loss. loss.
并且， 移动站 3向基站 1和中继站 2发送测距信号， 例如 CDMA 码或 CAZAC码， 所使用的发射功率通过开环功控进行调整。 该发射功 率可以通过开环功控进行调整。 在开环功控中， 首先， 移动站 3 居下 行链路接收到的信号质量， 对信号衰落情况进行估计。 当移动站 3接收 到的来自基站 1和中继站 2的信号很强时，表明移动站 3与基站 1和中 继站 2之间距离很近， 或者是有一个很好的传播路径。 这时移动站 3可 以降低它的发射功率； 相反， 就增加发射功率以抵消信道衰减。 我们理 解，在小区进入阶段， 因为基站 1不知道移动站是否会接入其下， 因此， 无法对该移动站进行闭环功控。开环功控的原则是以足够的但是尽可能 低的功率发射， 以避免对其他用户造成干扰。 And, the mobile station 3 transmits a ranging signal, such as a CDMA code or a CAZAC code, to the base station 1 and the relay station 2, and the used transmission power is adjusted by the open loop power control. The launching work The rate can be adjusted by open loop power control. In the open loop power control, first, the mobile station 3 has the signal quality received on the downlink, and estimates the signal fading. When the signal from the base station 1 and the relay station 2 received by the mobile station 3 is strong, it indicates that the mobile station 3 is close to the base station 1 and the relay station 2, or has a good propagation path. At this time, the mobile station 3 can reduce its transmission power; instead, it increases the transmission power to cancel the channel attenuation. We understand that in the cell entry phase, since the base station 1 does not know whether the mobile station will be connected to it, it is impossible to perform closed loop power control for the mobile station. The principle of open loop power control is to transmit at a sufficient but low possible power to avoid interference with other users.
如果移动站 3在向基站 1和中继站 2发送第一测距信号和第二测距 信号后， 超过移动站 3本地设定的接收测距应答信号的规定的时间后， 仍未收到来自基站 1和中继站 2任何一方的测距应答消息， 则移动站 3 调整其发射功率和随机选择新的序列 （ CDMA码或 CAZAC码）， 优选 地， 分别增大向基站 1发送测距信号的第一发射功率， 并调整向中继站 2发送测距信号的第二发射功率。 并以经调整的第一发射功率和新序列 重发第一测距信号， 以经调整的第二发射功率和新序列重发第二测距信 号。 当发射功率达到移动站 3允许的发射功率阈值, 或者移动站 3接收 到来自基站 1或中继站 2的测距应答消息时，移动站 3才停止继续向基 站 1发送第一测距信号并停止向中继站 2发送第二测距信号。  If the mobile station 3 transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2, after the predetermined time of receiving the ranging response signal set by the mobile station 3, the mobile station 3 has not received the slave base station. 1 and the ranging response message of either side of the relay station 2, the mobile station 3 adjusts its transmission power and randomly selects a new sequence (CDMA code or CAZAC code), and preferably increases the first transmission of the ranging signal to the base station 1, respectively. The power is transmitted, and the second transmit power of the ranging signal is transmitted to the relay station 2. And retransmitting the first ranging signal with the adjusted first transmit power and the new sequence, and retransmitting the second ranging signal with the adjusted second transmit power and the new sequence. When the transmission power reaches the transmission power threshold allowed by the mobile station 3, or the mobile station 3 receives the ranging response message from the base station 1 or the relay station 2, the mobile station 3 stops continuing to transmit the first ranging signal to the base station 1 and stops The relay station 2 transmits a second ranging signal.
在一个变化的是实施例中，如果移动站 3在向基站 1和中继站 2发 送第一测距信号和第二测距信号后， 超过规定的时间后， 仍未收到来自 基站 1和中继站 2任何一方的测距应答消息， 则移动站 3仍以第一发射 功率和第二发射功率分别向基站 1和中继站 2发送第一测距信号和第二 测距信号，直至其重发的次数分别超过了向基站 1和中继站 2重发的次 数的阈值。  In a variant embodiment, if the mobile station 3 transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2, after receiving the predetermined time, the base station 1 and the relay station 2 are not yet received. The ranging response message of any one party, the mobile station 3 still transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2 respectively with the first transmitting power and the second transmitting power until the number of retransmissions is respectively The threshold of the number of retransmissions to the base station 1 and the relay station 2 is exceeded.
作为示例， 优选地， 在步骤 S1和步骤 S2中 , 基站 1和中继站 2分 别将第一资源集合中的多个资源块和第二资源集合中的多个资源块的 指示信息提供给移动站 3 , 供移动站 3在第一资源集合中的多个资源块 中随机选择一个资源块（第一时频资源）发送上行测距信号， 以及供移 动站 3在第二资源集合中的多个资源块中随机选择一个资源块（第二时 频资源）发送上行测距信号， 则基站 1和中继站 2分别在其提供的多个 资源块上进行信号检测。 在另一个实施例中， 当步骤 S1中该基站 1发 送第一广播消息以及步骤 S2中该继站 2发送第二广播消息后， 当基站 1和中继站 2已经在第一广播消息和第二广播消息中包含了用于指示移 动站发送测距信号的第 5号资源块的资源块编号 5和第 17号资源块的 资源块编号 17时， 基站 1需要在第 5号资源块上进行信号检测， 并且， 中继站 2需要在第 17号资源块上进行信号检测。 优选地， 基站 1和中 继站 2 判断其在为移动站指定的用于发送上行测距信号的资源块上收 到的信号是否大于预定的信噪比的阈值，或者接收到的信号功率大于预 定的信号功率阈值，则基站 1和中继站 2确定其为移动站 3发送的测距 信号， 也即步骤 S6和步骤 S7, 基站 1从以第 5号资源块接收的信号中 检测出移动站 3以第 5号资源块发送的第一测距信号， 中继站 2从以第 17号资源块接收的信号中检测出移动站 3以第 17号资源块发送的第二 测距信号。 As an example, preferably, in step S1 and step S2, the base station 1 and the relay station 2 respectively provide indication information of the plurality of resource blocks in the first resource set and the plurality of resource blocks in the second resource set to the mobile station 3 And the mobile station 3 randomly selects one resource block (first time-frequency resource) among the plurality of resource blocks in the first resource set to send an uplink ranging signal, and multiple resources for the mobile station 3 in the second resource set. Randomly select a resource block in the block (second time) The frequency resource transmits an uplink ranging signal, and the base station 1 and the relay station 2 respectively perform signal detection on a plurality of resource blocks provided by the base station 1 and the relay station 2, respectively. In another embodiment, when the base station 1 transmits the first broadcast message in step S1 and the relay station 2 transmits the second broadcast message in step S2, when the base station 1 and the relay station 2 are already in the first broadcast message and the second broadcast When the message includes the resource block number 5 of the resource block No. 5 for indicating the mobile station transmitting the ranging signal and the resource block number 17 of the resource block No. 17, the base station 1 needs to perform signal detection on the resource block No. 5 And, the relay station 2 needs to perform signal detection on the 17th resource block. Preferably, the base station 1 and the relay station 2 determine whether the signal received on the resource block for transmitting the uplink ranging signal specified for the mobile station is greater than a predetermined signal to noise ratio threshold, or the received signal power is greater than a predetermined value. The signal power threshold, the base station 1 and the relay station 2 determine the ranging signal transmitted by the mobile station 3, that is, step S6 and step S7, the base station 1 detects the mobile station 3 from the signal received by the resource block No. 5 The first ranging signal transmitted by the resource block No. 5, the relay station 2 detects the second ranging signal transmitted by the mobile station 3 with the 17th resource block from the signal received by the 17th resource block.
在步驟 S8中， 中继站 2才艮据第二测距信号， 生成测距 4艮告消息。 具体地， 以中继站 2收到测距信号为 CDMA码为例， 例如， 中继 站 2收到的 CDMA码为 01101110... ，则中继站 2将收到的来自移动站 3的 CDMA码与中继站 2已知的 CDMA码集合中的所有码做互相关运 算， 而可根据相关运算的结果知晓移动站发送了哪些码。  In step S8, the relay station 2 generates a ranging message according to the second ranging signal. Specifically, the relay station 2 receives the ranging signal as a CDMA code. For example, if the CDMA code received by the relay station 2 is 01101110..., the relay station 2 will receive the CDMA code from the mobile station 3 and the relay station 2 All codes in the known CDMA code set are subjected to cross-correlation operation, and the codes transmitted by the mobile station can be known according to the result of the correlation operation.
此外， 中继站 2对接收到的来自移动站 3的 CDMA码的测距信号 进行处理，通过返回测距应答消息将不同移动站发出的信号调整到以相 差不多的功率， 相同的时间和相同的中心频率到达中继站 2的接收机。 因此中继站 2侧需要测量移动站 3的时间偏移、功率偏移以及频率偏移， 并计算出该来自移动站 3的 CDMA码相对于中继站 2的时偏校正， 频 偏校正和功率调整量， 以保证来自不同移动站的上行信号与中继站 2实 现上行同步， 即信号到达中继站 2的时间、 中心频率和功率基本相同。  In addition, the relay station 2 processes the received ranging signal of the CDMA code from the mobile station 3, and adjusts the signals sent by the different mobile stations to the same power, the same time and the same center by returning the ranging response message. The frequency arrives at the receiver of the relay station 2. Therefore, the relay station 2 side needs to measure the time offset, power offset, and frequency offset of the mobile station 3, and calculate the time offset correction, frequency offset correction, and power adjustment amount of the CDMA code from the mobile station 3 with respect to the relay station 2, In order to ensure that the uplink signals from different mobile stations and the relay station 2 achieve uplink synchronization, that is, the time, center frequency and power of the signal reaching the relay station 2 are substantially the same.
例如， 对于功率调整， '中继站 2有一个期望的接收功率， 如果中继 站 2实际接收到的来自移动站 3的测距信号的实际接收功率大于期望接 收功率， 中继站 2就将功率调整量设置为负值， 如果中继站 2实际接收 π 到的来自移动站 3的测距信号的实际接收功率小于期望接收功率， 中继 站 2就将功率调整量设置为正值； 对于时偏校正， 中继站 2要调整接收 到的来自移动站 3的信号与中继站 2的开始接收信号的时间边界对齐。 频偏的校正与时偏的校正类似。 For example, for power adjustment, 'relay station 2 has a desired received power. If the actual received power of the ranging signal from mobile station 3 actually received by relay station 2 is greater than the expected received power, relay station 2 sets the power adjustment amount to negative. Value, if relay station 2 actually receives π The actual received power of the ranging signal from the mobile station 3 is less than the expected received power, and the relay station 2 sets the power adjustment amount to a positive value; for the time offset correction, the relay station 2 adjusts the received signal from the mobile station 3 and The time boundary of the start receiving signal of the relay station 2 is aligned. The correction of the frequency offset is similar to the correction of the time offset.
中继站 2根据对来自移动站 3的测距信号进行信号处理所获取的时 偏校正、 频偏校正、 功率调整量和其获取的移动站 3所用的 CDMA或 CAZAC编码的码的信息和资源块编号， 例如资源块编号 17, 生成测距 报告消息。  The time-shift correction, the frequency offset correction, the power adjustment amount, and the CDMA or CAZAC-encoded code information and resource block number used by the mobile station 3 by the relay station 2 according to the signal processing of the ranging signal from the mobile station 3. For example, resource block number 17, generates a ranging report message.
在步驟 S9中， 中继站 2将测距报告消息报告给基站 1 , 其中， 测 距^ ^艮告消息中包括对来自移动站 3的测距信号进行调整的时偏校正、频 偏校正、功率调整量和中继站 2获取的移动站 3所用的 CDMA或 CAZAC 编码的码的信息和资源块编号， 例如资源块编号 17。  In step S9, the relay station 2 reports the ranging report message to the base station 1, wherein the ranging information includes a time offset correction, a frequency offset correction, and a power adjustment for adjusting the ranging signal from the mobile station 3. The information and resource block number of the CDMA or CAZAC coded code used by the mobile station 3 acquired by the relay station 2, for example, resource block number 17.
在步骤 S10中， 基站 1根据移动站 3发来的第一测距信号和中 继站 2汇报的测距报告消息， 按照预定规则选择基站 1 或中继站 2 向所述移动站 3发送测距应答消息，并将所选择的基站 1或中继站 2 中的一个作为移动站 3 的接入站。 基站 1 也会接收到来自移动站 3 的第一测距信号。 基站 1对该第一测距信号的处理与中继站 2对于 来自移动站 3的第一测距信号的处理完全类似。  In step S10, the base station 1 selects the base station 1 or the relay station 2 to send a ranging response message to the mobile station 3 according to a predetermined rule according to a first ranging signal sent by the mobile station 3 and a ranging report message reported by the relay station 2, according to a predetermined rule. One of the selected base station 1 or relay station 2 is used as an access station of the mobile station 3. Base station 1 also receives the first ranging signal from mobile station 3. The processing of the first ranging signal by the base station 1 is completely similar to the processing of the first ranging signal from the mobile station 3 by the relay station 2.
具体地， 以基站 1 收到测距信号为 CDMA码为例， 例如， 基站 1 收到的 CDMA码为 01101110... , 则基站 1将收到的来自移动站 3的 Specifically, the base station 1 receives the ranging signal as a CDMA code. For example, if the CDMA code received by the base station 1 is 01101110..., the base station 1 will receive the received from the mobile station 3.
CDMA码与基站 1 已知的 CDMA码集合中的所有码做互相关运算， 而 可根据相关运算的结果知晓移动站 3发送了哪些码。 The CDMA code performs cross-correlation operation with all codes in the known CDMA code set of the base station 1, and the codes transmitted by the mobile station 3 can be known based on the result of the correlation operation.
此外， 基站 1对接收到的来自移动站 3的 CDMA码的测距信号进 行处理，通过返回测距应答消息将不同移动站发出的信号调整到以相差 不多的功率， 相同的时间和相同的频率到达基站 1的接收机。 因此基站 In addition, the base station 1 processes the received ranging signal of the CDMA code from the mobile station 3, and adjusts the signals sent by the different mobile stations to the same power, the same time and the same frequency by returning the ranging response message. Arrives at the receiver of base station 1. Base station
1侧需要测量移动站 3的时间偏移、 功率偏移以及频率偏移， 并计算出 该来自移动站 3的 CDMA码相对于基站 1的时偏校正， 频偏校正和功 率调整量， 以保证来自不同移动站的上行信号与基站 1实现上行同步， 即信号到达基站 1的时间、 中心频率和功率基本相同。 例如， 对于功率调整， 基站 1有一个期望的接收功率， 如果基站 1 实际接收到的来自移动站 3 的测距信号的实际接收功率大于期望接收 功率， 基站 1就将功率调整量设置为负值， 如果基站 1实际接收到的来 自移动站 3的测距信号的实际接收功率小于期望接收功率，基站 1就将 功率调整量设置为正值； 对于时偏校正， 基站 1要调整接收到的来自移 动站 3的信号与基站 1的开始接收信号的时间边界对齐。频偏的校正与 时偏的校正类似。 The 1 side needs to measure the time offset, power offset and frequency offset of the mobile station 3, and calculate the time offset correction, frequency offset correction and power adjustment amount of the CDMA code from the mobile station 3 relative to the base station 1 to ensure The uplink signals from different mobile stations are uplink synchronized with the base station 1, that is, the time, center frequency and power of the signals arriving at the base station 1 are substantially the same. For example, for power adjustment, the base station 1 has a desired received power. If the actual received power of the ranging signal actually received by the base station 1 from the mobile station 3 is greater than the expected received power, the base station 1 sets the power adjustment amount to a negative value. If the actual received power of the ranging signal actually received by the base station 1 from the mobile station 3 is less than the expected received power, the base station 1 sets the power adjustment amount to a positive value; for the time offset correction, the base station 1 adjusts the received received value. The signal of the mobile station 3 is aligned with the time boundary of the base station 1 to start receiving signals. The correction of the frequency offset is similar to the correction of the time offset.
同时， 基站 1也会接收到来自中继站 2的测距报告消息， 其中 包含了中继站 对来自移动站 3的测距信号进行调整的时偏校正、 频 偏校正、功率调整量和中继站 2获取的移动站 3所用的 CDMA或 CAZAC 编码的码的信息和资源块编号。  At the same time, the base station 1 also receives a ranging report message from the relay station 2, which includes the time offset correction, the frequency offset correction, the power adjustment amount, and the movement acquired by the relay station 2 for the relay station to adjust the ranging signal from the mobile station 3. The information and resource block number of the CDMA or CAZAC coded code used by station 3.
因此，基站 1就收集了来自中继站 2的测距 4艮告消息和对来自移动 站 3的第一测距信号进^ "信号处理后的调整信息。  Therefore, the base station 1 collects the ranging 4 report message from the relay station 2 and the adjustment information after the signal processing of the first ranging signal from the mobile station 3.
基站 1根据测距 4艮告消息和调整信息， 综合地考虑以下多种条件中 的一种或多种， 选择合适的基站 1或中继站 2作为移动站 3的接入站。 判断条件包括以下各项中的任一项或任多项：  The base station 1 comprehensively considers one or more of the following various conditions based on the ranging message and the adjustment information, and selects the appropriate base station 1 or relay station 2 as the access station of the mobile station 3. The judgment conditions include any one or more of the following:
-基站 1和中继站 2中负载较轻的；  - the load in base station 1 and relay station 2 is lighter;
-基站 1和中继站 2中的，移动站 3与之通信时消耗功率较少的； -基站 1和中继站 2中的， 移动站 3经由其进行接入时时延较短 的  - in the base station 1 and the relay station 2, the mobile station 3 consumes less power when communicating with it; - in the base station 1 and the relay station 2, the mobile station 3 has a shorter delay when accessing via the mobile station 3
-基站 1和中继站 2中的， 移动站 3经由其进行接入时传送路径 的整体吞吐量较大的；  - in the base station 1 and the relay station 2, the overall throughput of the transmission path through which the mobile station 3 accesses is large;
-基站 1与中继站 2中的， 移动站 3经由其进行接入时错误重传 次数最少的。  - In the base station 1 and the relay station 2, the number of error retransmissions is minimized when the mobile station 3 accesses therethrough.
在一个变化的实施例中， 基站 1 收到来自多个中继站的测距报 告消息， 且基站 1获取了来自移动站 3的第一测距信号进行信号处理 后的调整信息。 则基站 1根据上述判断条件， 从中选择基站 1或者多个 中继站的其中之一作为移动站 3的接入站。  In a variant embodiment, the base station 1 receives a ranging report message from a plurality of relay stations, and the base station 1 acquires the adjustment information after signal processing from the first ranging signal from the mobile station 3. Then, the base station 1 selects one of the base station 1 or a plurality of relay stations as the access station of the mobile station 3 based on the above judgment condition.
当采用上述各项中任多项进行判断时， 各项中的指标可根据进 行适当加权然后进行组合作为判断基准， 其中的加权系数可根据实 际情况或人为确定， 这应是本领域技术人员应能理解的， 在此无需 赘言。 When using any of the above items to judge, the indicators in each item can be based on The lines are appropriately weighted and then combined as a criterion for judging, and the weighting coefficients may be determined according to actual conditions or artificially, which should be understood by those skilled in the art, and no rumors are needed here.
如果基站 1选择基站 1作为移动站 3的接入站时， 基站 1将测 距应答消息通过公共信道广播发送给移动站 3。 其中， 测距应答消息 中包括其中包含了基站 1对来自移动站 3的测距信号进行调整的时偏 校正、 频偏校正、 功率调整量和基站 1获取的移动站 3所用的 CDMA 或 CAZAC编码的码的信息以及接收到所述码的测距资源块编号 ,此外， 还包括分配给移动站 3的基本管理连接和主管理连接的标识符， 以便与 移动站 3以基本管理连接为标识符在专用信道上与基站 1交互测距信号 /测距应答消息， 并相应地调整物理层参数， 直至基站 1发送给移动站 3 的测距应答消息含有成功状态的标识。  If the base station 1 selects the base station 1 as the access station of the mobile station 3, the base station 1 transmits the ranging response message to the mobile station 3 through the common channel broadcast. The ranging response message includes a time offset correction, a frequency offset correction, a power adjustment amount, and a CDMA or CAZAC code used by the mobile station 3 acquired by the base station 1 to adjust the ranging signal from the mobile station 3. The information of the code and the ranging resource block number of the received code, in addition, an identifier of the basic management connection and the primary management connection assigned to the mobile station 3, so as to be connected with the mobile station 3 as a basic management connection. The ranging signal/ranging response message is exchanged with the base station 1 on the dedicated channel, and the physical layer parameters are adjusted accordingly until the ranging response message sent by the base station 1 to the mobile station 3 contains an identification of the success status.
如果基站 1选择中继站 2作为移动站 3的接入站时，其在与中继 站通信的专用信道上或者可以在发送数据的数据信道上将这个指示 中继站 2作为移动站 3的接入站的指示消息发送给中继站 2。优选地 该指示消息中包括中继站用于发送测距报告消息所用的帧的编号， 或者， 该指示消息中包括中继站 2对来自移动站 3的测距信号进行调 整的时偏校正、 频偏校正、 功率调整量和中继站 2获取的移动站 3所用 的 CDMA码或 CAZAC码信息及占用中继站上的测距资源块的编号。  If the base station 1 selects the relay station 2 as the access station of the mobile station 3, it may indicate this relay station 2 as an access station of the mobile station 3 on a dedicated channel communicating with the relay station or on a data channel transmitting data. Send to relay station 2. Preferably, the indication message includes a number of a frame used by the relay station to send the ranging report message, or the indication message includes a time offset correction, a frequency offset correction, and a frequency offset correction of the ranging signal adjusted by the relay station 2 from the mobile station 3. The power adjustment amount and the CDMA code or CAZAC code information used by the mobile station 3 acquired by the relay station 2 and the number of the ranging resource block on the occupied relay station.
在接收到来自基站 1的指示信息后， 中继站 2在公共信道上向移动 站 3发送测距应答消息。该测距应答消息中包括中继站 2对来自移动 站 3的测距信号进行调整的时偏校正、 频偏校正、 功率调整量和中继站 2获取的移动站 3所用的 CDMA码或 CAZAC码信息以及测距资源块编 号， 此外， 还包括基本管理连接和主管理连接标识符， 以便与移动站 3 以基本管理连接为标识符的专用信道上与中继站 2 交互测距信号 /响应 消息， 并相应地调整物理层参数， 直至中继站 2发送给移动站 3的测距 应答消息含有成功标识的状态。  Upon receiving the indication information from the base station 1, the relay station 2 transmits a ranging response message to the mobile station 3 on the common channel. The ranging response message includes a time offset correction for adjusting the ranging signal from the mobile station 3, a frequency offset correction, a power adjustment amount, and a CDMA code or CAZAC code information used by the mobile station 3 acquired by the relay station 2 and the measurement. From the resource block number, in addition, the basic management connection and the primary management connection identifier are included, so as to interact with the relay station 2 on the dedicated channel with the mobile station 3 as the basic management connection identifier, and adjust the ranging signal/response message accordingly. The physical layer parameters, until the ranging response message sent by the relay station 2 to the mobile station 3 contains a status of successful identification.
上述实施例对应了移动站 3收到一个中继站 2与一个基站 1的广播 消息的情景。 在一个变化的实施例中， 多个中继站 2分别使用的第二资 源集合中的互无交集的子资源集合，用于其为移动站 3分配上行测距资 源块。 则移动站 3会收到来自多个中继站 2广播消息， 该多个广播消息 中分别包括为移动站 3 分配的用于发送上行测距信号的各个不同的资 源块。 此外， 移动站 3还收到来自基站 1的广播消息， 其中， 包括为移 动站 3分配的用于发送上行测距信号的第 5号资源块的资源块编号 5。 移动站 3以第 5号资源块发送测距信号。 The above embodiment corresponds to a scenario in which the mobile station 3 receives a broadcast message from a relay station 2 and a base station 1. In a variant embodiment, the second resource used by the plurality of relay stations 2 respectively A set of sub-resources in the source set that are mutually non-intersecting, for which the mobile station 3 is allocated an uplink ranging resource block. Then, the mobile station 3 receives broadcast messages from a plurality of relay stations 2, each of which includes respective different resource blocks allocated for the mobile station 3 for transmitting the uplink ranging signals. Further, the mobile station 3 also receives a broadcast message from the base station 1, which includes the resource block number 5 of the resource block No. 5 for transmitting the uplink ranging signal allocated to the mobile station 3. The mobile station 3 transmits the ranging signal in the resource block No. 5.
因此， 在步骤 S7，中， 多个中继站分别会在其对应的资源块上收到 来自移动站 3的第二测距信号。  Therefore, in step S7, the plurality of relay stations respectively receive the second ranging signal from the mobile station 3 on their corresponding resource blocks.
在步骤 S8，中， 多个中继站会根据接收到的第二测距信号， 生成多 个测距报告消息。  In step S8, a plurality of relay stations generate a plurality of ranging report messages according to the received second ranging signal.
在步驟 S9，中， 多个中继站将多个测距报告消息报告给基站 1。  In step S9, a plurality of relay stations report a plurality of ranging report messages to the base station 1.
在步骤 S10，中，基站 1根据多个测距报告消息和来自移动站 3的第 一测距信号， 根据多个测距报告消息和第一测距信号， 根据预定规则， 综合地选择其中之一 ^：为移动站 3的接入站，并将这个指示信息通过专 用信道发送给被选中的中继站或者，若选中基站 1为移动站 3的接入站， 则直接将测距应答消息通过公共信道发送给移动站 3。  In step S10, the base station 1 comprehensively selects according to the plurality of ranging report messages and the first ranging signal according to the plurality of ranging report messages and the first ranging signal according to a predetermined rule. a ^: is the access station of the mobile station 3, and sends the indication information to the selected relay station through the dedicated channel or, if the base station 1 is selected as the access station of the mobile station 3, directly passes the ranging response message through the public The channel is sent to the mobile station 3.
在上述实施例的一个变化例中， 多个不同的且距离足够远的中继站 (也即，移动站以一个资源向一个中继站所发送的测距信号不会对另一 个以相同的资源发送测距信号的移动站与另一个中继站之间的通信造 成干扰）可以复用同一个或多个资源块。  In a variation of the above embodiment, a plurality of different and far enough relay stations (ie, the ranging signal transmitted by the mobile station with one resource to one relay station does not send the ranging to the other resource) The communication between the mobile station of the signal and another relay station causes interference) the same or multiple resource blocks can be multiplexed.
对于根据本发明， 移动站在切换小区， 或重新进入网络时的进行测 距操作， 与以上初始测距时的类似， 在此不再赘述。  According to the present invention, the ranging operation performed by the mobile station when switching the cell or re-entering the network is similar to that of the above initial ranging, and details are not described herein again.
在另一个变化的实施例中， 移动站 3进行周期性测距。 基站 1与中 继站 2分别在广播消息中的上行映射（UL-MAP ) 内向本移动站 3指示 了与基站 1对应的用于周期性测距的第一通信资源，和与中继站 2对应 的用于周期性测距的第二通信资源。 当本移动站 3在内部维护的与基站 1和与中继站 2的周期性测距的定时器到期以后， 在步骤 S3 中， 本移 动站 3根据广播信号中的上行映射（ UL-MAP )内指示的第一通信资源， 和第二通信资源，并在步骤 S4和 S5中向基站 1与中继站 2发送周期测 距信号。 而在步骤 S6和步驟 S7, 基站 1从以用于周期测距的第一通信 资源接收的信号中检测出移动站 3的周期测距的第一测距信号， 中继站 2从以用于周期测距的第二通信资源接收的信号中检测出移动站 3的周 期测距的第二测距信号。 而后的步骤与以上实施例中的类似， 在此不再 赘述。 In another variant embodiment, the mobile station 3 performs periodic ranging. The base station 1 and the relay station 2 respectively indicate to the mobile station 3, in the uplink mapping (UL-MAP) in the broadcast message, the first communication resource for periodic ranging corresponding to the base station 1, and the corresponding to the relay station 2 The second communication resource of periodic ranging. After the internal mobile station 3 internally maintains the timers of the periodic ranging with the base station 1 and the relay station 2 expires, in step S3, the mobile station 3 is based on the uplink mapping (UL-MAP) in the broadcast signal. Indicating first communication resource, and second communication resource, and transmitting periodic measurement to base station 1 and relay station 2 in steps S4 and S5 Distance signal. First ranging signal in step S6 and step S 7, the signal from the base station 1 in the first communication period for the periodic ranging resource received in the mobile station 3 detects a ranging relay station 2 for periods from A second ranging signal of the periodic ranging of the mobile station 3 is detected in the signal received by the second communication resource of the ranging. The subsequent steps are similar to those in the above embodiment, and are not described herein again.
以上对本发明的实施例进行了描述， 但是本发明并不局限于特 定的系统、 设备和具体协议， 本领域内技术人员可以在所附权利要 求的范围内做出各种变形或修改。  The embodiments of the present invention have been described above, but the present invention is not limited to the specific systems, equipment, and specific protocols, and various modifications and changes can be made by those skilled in the art within the scope of the appended claims.
图 3是才艮据本发明一个具体实施例， 无线通信网络的移动站 3 中 用于与基站 1和中继站 2进行测距操作的第一操作装置的装置框图。 图 3所示的第一操作装置 10位于以图 1所示的移动站 3中。 第一操作 装置 10包括第一检测装置 100, 第一确定发送装置 101， 第一获取装置 102， 发射功率确定装置 103和第一发送装置 104。 其中， 第一检测装置 100还包括第一接收装置 1000和第二检测装置 1001。  Figure 3 is a block diagram of a device for a first operating device for ranging operations with base station 1 and relay station 2 in mobile station 3 of a wireless communication network in accordance with an embodiment of the present invention. The first operating device 10 shown in Fig. 3 is located in the mobile station 3 shown in Fig. 1. The first operating device 10 includes a first detecting device 100, a first determining transmitting device 101, a first obtaining device 102, a transmitting power determining device 103, and a first transmitting device 104. The first detecting device 100 further includes a first receiving device 1000 and a second detecting device 1001.
首先， 接收装置 1000接收首先分别接收到来自基站 1和中继站 2 的广播信号。 广播信号包括前导符号 （preamble ) , 标识小区的类型的 信息， 也即表示该小区是基站小区还是中继站小区）， 中继站的类型与 基站的类型不同， 以及小区标识号等。 由于中继站 2所发送的前导符号 中插入了不同于基站 1的中继的标识信息， 因此， 移动站 3即可以从该 标识信息中识别出该广播消息来源于中继站。  First, the receiving device 1000 receives the broadcast signals from the base station 1 and the relay station 2, respectively, first. The broadcast signal includes a preamble, information identifying the type of the cell, that is, whether the cell is a base station cell or a relay station cell, a type of the relay station different from a type of the base station, and a cell identification number. Since the identification information of the relay different from the base station 1 is inserted into the preamble symbol transmitted from the relay station 2, the mobile station 3 can recognize from the identification information that the broadcast message originates from the relay station.
前导符号是用于移动站 3做下行同步的参考信号，是一个特殊的时 域周期信号， 因此， 第二检测装置 1001 可以通过前导符号， 检测下行 信号的质量。 本领域技术人员理解， 移动站 3还可以使用其他方式获取 下行信号的质量， 在此不再赘述。  The preamble symbol is a reference signal for the downlink synchronization of the mobile station 3, and is a special time domain periodic signal. Therefore, the second detecting means 1001 can detect the quality of the downlink signal by using a preamble symbol. It is understood by those skilled in the art that the mobile station 3 can also obtain the quality of the downlink signal in other manners, and details are not described herein again.
若第二检测装置 1001接收到的来自基站 1和中继站 2的广播信号， 例如， 为前导符号的功率大于一定的阔值， 例如， 第二检测装置 1001 检测出分别来自基站 1 和中继站 2 的前导符号的接收功率均大于 -85dBm, 则第一确定发送装置 101 确定可以解码紧随在广播信号后面 的广播消息， 并且确定可能需要向基站 1和中继站 2发送测距信号。 第一获取装置 102根据前导符号进行下行同步后， 开始解析基站 1 和中继站 2 在公共信道上利用不同时频资源分别发送的第一广播消息 和第二广播消息， 以分别获取第一资源指示信息， 以及第二资源指示信 息。 优选地， 在一个实施例中， 基站 1和中继站 2分别将第一资源集合 中的多个资源块和第二资源集合中的多个资源块的指示信息在第一广 播消息和第二广播消息中发送给移动站 3， 则移动站 3分别从第一资源 集合中的多个资源块和第二资源集合中的多个资源块随机选择一个第 一资源块和一个第二资源块进行发送， 因为移动站 3不知道其他移动站 选择的时频资源位置， 只能随机选择一个时频资源发送上行测距信号， 以減少与其他移动站使用的相同资源块的概率。 在本实施例中， 为简明 起见， 移动站 3选择以第 5号资源块发送第一测距信号， 以第 17号资 源块发送第二测距信号。 在另一个实施例中， 基站 1和中继站 2分别随 机选择了第 5号资源块和第 17号资源块， 则移动站 3通过解析第一广 播消息和第二广播消息，知晓其应以第 5号资源块向基站 1发送第一测 距信号， 并知晓其应以第 17号资源块向移动站 3发送第二测距信号。 If the broadcast signal from the base station 1 and the relay station 2 received by the second detecting device 1001, for example, the power of the preamble symbol is greater than a certain threshold, for example, the second detecting device 1001 detects the preamble from the base station 1 and the relay station 2, respectively. The received power of the symbols is greater than -85 dBm, and the first determination transmitting means 101 determines that the broadcast message immediately following the broadcast signal can be decoded, and determines that the ranging signal may need to be transmitted to the base station 1 and the relay station 2. After the downlink synchronization is performed according to the preamble symbol, the first acquiring device 102 starts to parse the first broadcast message and the second broadcast message respectively sent by the base station 1 and the relay station 2 by using different time-frequency resources on the common channel, to obtain the first resource indication information respectively. And the second resource indication information. Preferably, in an embodiment, the base station 1 and the relay station 2 respectively indicate indication information of the plurality of resource blocks in the first resource set and the plurality of resource blocks in the second resource set in the first broadcast message and the second broadcast message, respectively. Transmitted to the mobile station 3, the mobile station 3 randomly selects a first resource block and a second resource block from a plurality of resource blocks in the first resource set and a plurality of resource blocks in the second resource set, respectively. Since the mobile station 3 does not know the time-frequency resource location selected by other mobile stations, only one time-frequency resource can be randomly selected to transmit the uplink ranging signal to reduce the probability of using the same resource block used by other mobile stations. In the present embodiment, for the sake of simplicity, the mobile station 3 selects to transmit the first ranging signal with the resource block No. 5 and the second ranging signal with the resource block No. 17. In another embodiment, the base station 1 and the relay station 2 randomly select the resource block No. 5 and the resource block No. 17, respectively, and the mobile station 3 knows that it should be the fifth by analyzing the first broadcast message and the second broadcast message. The resource block transmits the first ranging signal to the base station 1 and knows that it should transmit the second ranging signal to the mobile station 3 in the 17th resource block.
优选地， 广播消息中还包括等效全向辐射功率 （EIRP), 第一获取 装置 102获取的来自基站 1和中继站 2的第一广播消息和第二广播消息 中分别包含的基站 1的第一 EIRP值和中继站 2的第二 EIRP值， EIRP 值即为基站 1和中继站 2的发送射功率、天线增益以及发射机到天线物 理连接的信号损耗之和。 此外， 根据第一获取装置 102接收到第一广播 消息和第二广播消息所用的第一接收功率和第二接收功率， 则用第一 EIRP值与第一接收功率的差值， 则发射功率确定装置 103即可估计出 上行的发送第一测距信号的发射功率； 而用第二 EIRP值与第二接收功 率的差值， 即可估计出上行的发送第二测距信号的发射功率。 此处， 我 们是做了这样的等效， 即上行信¾与下行信道是对称的， 因此可以用下 行链路质量来估计上行的链路质量。 本领域技术人员可以理解， 在时分 双工（TDD ) 系统中， 上、 下行链路处于同一频段不同时隙， 因此， 上 下行信道基本对称。 而对于频分双工（FDD ) 系统， 虽然上、 下行链路 的频段不同， 但是与工作频率相比可以忽略不计， 因此， 也近似地将视 为将下行的路径损耗作为估计的上行的路径损耗。 Preferably, the broadcast message further includes an equivalent isotropic radiated power (EIRP), and the first of the base station 1 included in the first broadcast message and the second broadcast message from the base station 1 and the relay station 2 acquired by the first obtaining means 102, respectively The EIRP value and the second EIRP value of the relay station 2, the EIRP value is the sum of the transmit power of the base station 1 and the relay station 2, the antenna gain, and the signal loss of the physical connection of the transmitter to the antenna. In addition, according to the first received power and the second received power used by the first obtaining device 102 to receive the first broadcast message and the second broadcast message, the difference between the first EIRP value and the first received power is used, and then the transmit power is determined. The device 103 can estimate the transmit power of the uplink transmit first ranging signal; and use the difference between the second EIRP value and the second received power to estimate the transmit power of the uplink transmit second ranging signal. Here, we do the equivalent, that is, the uplink signal is symmetric with the downlink channel, so the downlink quality can be estimated by the downlink quality. Those skilled in the art can understand that in a time division duplex (TDD) system, the uplink and downlink are in different time slots in the same frequency band, and therefore, the uplink and downlink channels are substantially symmetrical. For frequency division duplex (FDD) systems, although the frequency bands of the uplink and downlink are different, they are negligible compared with the operating frequency. Therefore, it is also approximately In order to use the downlink path loss as the estimated uplink path loss.
并且， 移动站 3向基站 1和中继站 2发送测距信号， 例如 CDMA 码或 CAZAC码， 所使用的发射功率通过开环功控进行调整。 该发射功 率可以通过开环功控进行调整。 在开环功控中， 首先， 移动站 3才艮据下 行链路接收到的信号质量， 对信号衰落情况进行估计。 当移动站 3接收 到的来自基站 1和中继站 2的信号很强时，表明移动站 3与基站 1和中 继站 2之间距离很近， 或者是有一个很好的传播路径。 这时移动站 3可 以降低它的发射功率； 相反， 就增加发射功率以抵消信道衰减。 我们理 解， 在小区进入阶段， 因为基站 1不知道移动站 3是否会接入其下， 因 此， 无法对该移动站 3进行闭环功控。 开环功控的原则是以足够的但是 尽可能低的功率发射， 以避免对其他用户造成干扰。  And, the mobile station 3 transmits a ranging signal, such as a CDMA code or a CAZAC code, to the base station 1 and the relay station 2, and the used transmission power is adjusted by the open loop power control. The transmit power can be adjusted by open loop power control. In the open loop power control, first, the mobile station 3 estimates the signal fading according to the signal quality received by the downlink. When the signals received from the base station 1 and the relay station 2 by the mobile station 3 are strong, it indicates that the mobile station 3 is close to the base station 1 and the relay station 2, or has a good propagation path. At this time, the mobile station 3 can reduce its transmission power; instead, it increases the transmission power to offset the channel attenuation. We understand that in the cell entry phase, since the base station 1 does not know whether the mobile station 3 will be connected to it, the closed station power control of the mobile station 3 cannot be performed. The principle of open loop power control is to transmit at a sufficient but low possible power to avoid interference with other users.
然后，第一发送装置 104以第 5号资源块按照第一测距信号的发射 功率发送第一测距信号； 第一发送装置 104以第 17号资源块按照第二 测距信号的发射功率发送第二测距信号。 其中， 第一测距信号与第二测 距信号相同， 均为移动站 3从已知的 CDMA码集中随机选择的， 用来 标识自己的标识信息。 若移动站 3 采用等幅零自相关序列 （CAZAC ) 的编码格式，则移动站 3从已知的 CAZAC码集中随机选择的其中之一， 用来标识自己的标识信息。 CDMA码集和 CAZAC码集中的所有码是基 站 1和中继站 2都巳知晓的。  Then, the first transmitting device 104 transmits the first ranging signal according to the transmit power of the first ranging signal by the resource block No. 5; the first transmitting device 104 transmits the resource block according to the transmit power of the second ranging signal by the 17th resource block. Second ranging signal. The first ranging signal is the same as the second ranging signal, and is selected by the mobile station 3 from the known CDMA code set to identify its own identification information. If the mobile station 3 adopts the coding format of the equal amplitude zero autocorrelation sequence (CAZAC), the mobile station 3 randomly selects one of the known CAZAC code sets to identify its own identification information. All codes in the CDMA code set and the CAZAC code set are known to both the base station 1 and the relay station 2.
如果第一发送装置 104在向基站 1和中继站 2发送第一测距信号和 第二测距信号后，超过移动站 3本地设定的接收测距应答信号的规定的 时间后， 仍未收到来自基站 1和中继站 2任何一方的测距应答消息， 则 发射功率确定装置 103调整其发射功率和随机选择新的序列（ CDMA码 或 CAZAC码） , 优选地， 分别增大向基站 1发送测距信号的第一发射 功率， 并调整向中继站 2发送测距信号的第二发射功率。 并以经调整的 第一发射功率和新序列重发第一测距信号， 以经调整的第二发射功率和 新序列重发第二测距信号。 当发射功率达到移动站 3允许的发射功率阈 值，或者第一获取装置 102接收到来自基站 1或中继站 2的测距应答消 息时，第一发送装置 104才停止继续向基站 1发送第一测距信号并停止 向中继站 2发送第二测距信号。 If the first transmitting device 104 transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2, after the predetermined time of receiving the ranging response signal set by the mobile station 3, the predetermined time has not been received. The ranging response message from either of the base station 1 and the relay station 2, the transmission power determining means 103 adjusts its transmission power and randomly selects a new sequence (CDMA code or CAZAC code), preferably, increases the transmission of the ranging to the base station 1, respectively. The first transmit power of the signal and the second transmit power of the ranging signal transmitted to the relay station 2. And retransmitting the first ranging signal with the adjusted first transmit power and the new sequence, and retransmitting the second ranging signal with the adjusted second transmit power and the new sequence. When the transmission power reaches the transmission power threshold allowed by the mobile station 3, or the first acquisition device 102 receives the ranging response message from the base station 1 or the relay station 2, the first transmitting device 104 stops continuing to transmit the first ranging to the base station 1. Signal and stop A second ranging signal is transmitted to the relay station 2.
在一个变化的是实施例中，如果第一发送装置 104在向基站 1和中 继站 2发送第一测距信号和第二测距信号后， 超过规定的时间后， 仍未 收到来自基站 1和中继站 2任何一方的测距应答消息，则第一发送装置 104仍以第一发射功率和第二发射功率分别向基站 1和中继站 2发送第 一测距信号和第二测距信号，直至其重发的次数分别超过了向基站 1和 中继站 2重发的次数的阈值。  In a variant embodiment, if the first transmitting device 104 transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2, after the specified time has elapsed, the base station 1 and the base station 1 are still not received. The ranging response message of either side of the relay station 2, the first transmitting device 104 still transmits the first ranging signal and the second ranging signal to the base station 1 and the relay station 2 respectively with the first transmitting power and the second transmitting power until the weight thereof The number of transmissions exceeds the threshold of the number of retransmissions to the base station 1 and the relay station 2, respectively.
图 4是才艮据本发明的一个具体实施例，无线通信网络的基站 1中用 于与移动站 3和中继站 2进行测距操作的第二操作装置 20的装置框 图。 图 4所示的第二操作装置 20位于以图 1所示的基站 1中。 其中， 第二操作装置 20包括第三发送装置 200, 第三检测装置 201 , 第二获取 装置 202和接入控制装置 203。  4 is a block diagram of a second operating device 20 for performing ranging operations with the mobile station 3 and the relay station 2 in the base station 1 of the wireless communication network in accordance with an embodiment of the present invention. The second operating device 20 shown in Fig. 4 is located in the base station 1 shown in Fig. 1. The second operating device 20 includes a third transmitting device 200, a third detecting device 201, a second obtaining device 202, and an access control device 203.
第三发送装置 200发送第一广播消息，其中第一广播消息包含用于 指示移动站 3用来向基站 1发送上行测距信号的第一通信资源的第一资 源指示信息， 具体地， 优选地， 第三发送装置 200将第一资源集合中的 多个资源块（也即第一通信资源） （其中， 本说明书使用 "资源块" 用 以表示互不干扰的通信资源， 例如不同时隙、 子载波等通信资源）的相 关指示信息发送出去； 中继站 2将第二资源集合中的多个资源块（也即 第二通信资源）的相关指示信息发送出去； 第一资源集合与第二资源集 合完全不同， 因此， 也保证了基站 1和中继站 2不会将相同的时频资源 分配给移动站 3作为发送上行测距信号的时频资源。移动站 3 自己分别 从第一资源集合中的多个资源块中随机选择一个自己与基站 1 进行通 信的第一时频资源， 减少与其他移动站使用的相同资源块的概率； 并从 第二资源集合中的多个资源块中随机选择一个自己与中继站进行通信 的第二时频资源， 减少与其他移动站使用的相同资源块的概率。 在另一 种情况下， 第三发送装置 200只会从第一资源集合， 例如， 资源块编号 为 0-9的资源块中随机选择其中的一个资源块作为用于移动站 3向基站 1发送上行测距信号的第一时频资源， 而中继站 2只会从第二资源集合 (例如， 资源块编号为 10-20的资源块） 中随机选择其中的一个资源作 为用于移动站 3向中继站 2发送上行测距信号的第二时频资源，第一资 源集合与第二资源集合完全不同， 因此， 也保证了基站 1和中继站 2不 会将相同的时频资源分配给移动站 3 作为发送上行测距信号的时频资 源。 例如基站 1随机选择了第 5号资源块（也即第一通信资源）， 而中 继站 2随机选择了第 17号资源块（也即第二通信资源）分别作为移动 站 3发送上行测距信号的资源，则第三发送装置 200和中继站 2分别将 指示第 5号资源块的资源块编号 5，和指示第 17号资源块的资源块编号 17在广播消息中的 UL-MAP, 也即上行映射中发送出去。 The third sending device 200 sends a first broadcast message, where the first broadcast message includes first resource indication information for indicating the first communication resource used by the mobile station 3 to send the uplink ranging signal to the base station 1, specifically, preferably The third transmitting device 200 uses a plurality of resource blocks (ie, the first communication resource) in the first resource set (wherein the description uses "resource block" to indicate communication resources that do not interfere with each other, for example, different time slots, The relevant indication information of the communication resource such as the subcarrier is transmitted; the relay station 2 transmits the related indication information of the plurality of resource blocks (that is, the second communication resource) in the second resource set; the first resource set and the second resource set It is completely different. Therefore, it is also ensured that the base station 1 and the relay station 2 do not allocate the same time-frequency resource to the mobile station 3 as the time-frequency resource for transmitting the uplink ranging signal. The mobile station 3 itself randomly selects a first time-frequency resource that communicates with the base station 1 from a plurality of resource blocks in the first resource set, and reduces the probability of using the same resource block used by other mobile stations; and from the second Among the plurality of resource blocks in the resource set, a second time-frequency resource that communicates with the relay station is randomly selected to reduce the probability of using the same resource block used by other mobile stations. In another case, the third transmitting device 200 only randomly selects one of the resource blocks from the first resource set, for example, the resource block number 0-9, as the mobile station 3 transmits to the base station 1. The first time-frequency resource of the uplink ranging signal, and the relay station 2 only randomly selects one of the resources from the second resource set (for example, the resource block with the resource block number 10-20) For the second time-frequency resource used by the mobile station 3 to transmit the uplink ranging signal to the relay station 2, the first resource set is completely different from the second resource set, and therefore, the base station 1 and the relay station 2 are also guaranteed not to have the same time-frequency. The resource is allocated to the mobile station 3 as a time-frequency resource for transmitting an uplink ranging signal. For example, the base station 1 randomly selects the No. 5 resource block (that is, the first communication resource), and the relay station 2 randomly selects the No. 17 resource block (that is, the second communication resource) as the mobile station 3 transmits the uplink ranging signal respectively. For the resource, the third transmitting device 200 and the relay station 2 respectively indicate the resource block number 5 indicating the resource block No. 5 and the UL-MAP indicating the resource block number 17 of the 17th resource block in the broadcast message, that is, the uplink mapping. Send it out.
当第三发送装置 200分别将包含第一资源集合中的多个资源块的 指示信息在第一广播消息中发送给移动站 3， 以供移动站 3做选择， 则 第三检测装置 201在其提供的多个资源块上进行信号检测。在另一个实 施例中，当第三发送装置 200发送第一广播消息后，当第三发送装置 200 和中继站 2 已经在第一广播消息和第二广播消息中分别包含指示移动 站 3发送测距信号的资源块为第 5号和第 17号资源块的指示信息时， 第三检测装置 201需要在第 5号资源块上进行信号检测。 优选地， 第三 检测装置 201判断其在第 5号资源块上收到的信号是否大于预定的信噪 比的阈值， 或者接收到的信号功率大于预定的信号功率阈值， 则第三检 测装置 201确定该信号为移动站 3发送的测距信号， 第三检测装置 201 从以第 5号资源块接收的信号中检测出移动站 3以第 5号资源块发送的 第一测距信号。  When the third transmitting device 200 respectively transmits the indication information including the plurality of resource blocks in the first resource set to the mobile station 3 in the first broadcast message for the mobile station 3 to make a selection, the third detecting device 201 is in the Signal detection is performed on multiple resource blocks provided. In another embodiment, after the third transmitting device 200 transmits the first broadcast message, when the third transmitting device 200 and the relay station 2 have respectively included in the first broadcast message and the second broadcast message, the mobile station 3 is instructed to send the ranging. When the resource block of the signal is the indication information of the resource blocks No. 5 and No. 17, the third detecting means 201 needs to perform signal detection on the No. 5 resource block. Preferably, the third detecting means 201 determines whether the signal received on the resource block No. 5 is greater than a predetermined threshold of the signal to noise ratio, or the received signal power is greater than a predetermined signal power threshold, the third detecting means 201 It is determined that the signal is a ranging signal transmitted by the mobile station 3, and the third detecting means 201 detects the first ranging signal transmitted by the mobile station 3 in the resource block No. 5 from the signal received in the resource block No. 5.
当第二获取装置 202接收到移动站 3发来的测距消息和中继站 2发 来的测距报告消息后， 接入控制装置 203根据移动站 3发来的第一测 距信号和中继站 2 汇报的测距报告消息， 按照预定规则选择基站 1 或中继站 2向所述移动站 3发送测距应答消息，并将所选择的基站 1 或中继站 2中的一个作为移动站 3的接入站。第二获取装置 202也会 接收到来自移动站 3的第一测距信号。 具体地， 以基站 1收到测距信 号为 CDMA码为例， 例如， 基站 1收到的 CDMA码为 01101110... , 则基站 1将收到的来自移动站 3的 CDMA码与基站 1已知的 CDMA码 集合中的所有码做互相关运算， 而可才艮据相关运算的结杲知晓移动站 3 发送了哪些码。 After the second obtaining means 202 receives the ranging message sent by the mobile station 3 and the ranging report message sent by the relay station 2, the access control means 203 reports the first ranging signal and the relay station 2 according to the mobile station 3. The ranging report message, the base station 1 or the relay station 2 is selected to transmit a ranging response message to the mobile station 3 according to a predetermined rule, and one of the selected base station 1 or relay station 2 is used as an access station of the mobile station 3. The second acquisition device 202 also receives the first ranging signal from the mobile station 3. Specifically, the base station 1 receives the ranging signal as a CDMA code. For example, if the CDMA code received by the base station 1 is 01101110..., the base station 1 receives the received CDMA code from the mobile station 3 and the base station 1 All the codes in the known CDMA code set are subjected to cross-correlation operation, and the mobile station 3 can be known according to the correlation of the correlation operation. Which codes were sent.
此外， 接入控制装置 203对接收到的来自移动站 3的 CDMA码的 测距信号进行处理，通过返回测距应答消息将不同移动站发出的信号调 整到以相差不多的功率， 相同的时间和相同的频率到达基站 1 的接收 机。 因此接入控制装置 203侧需要测量移动站 3的时间偏移、 功率偏移 以及频率偏移， 并计算出该来自移动站 3的 CDMA码相对于基站 1的 时偏校正， 频偏校正和功率调整量， 以保证来自不同移动站的上行信号 与基站 1实现上行同步， 即信号到达基站 1的时间、 中心频率和功率基 本相同。  In addition, the access control device 203 processes the received ranging signal of the CDMA code from the mobile station 3, and adjusts the signals sent by the different mobile stations to the same power by the return ranging response message, at the same time and The same frequency arrives at the receiver of base station 1. Therefore, the access control device 203 side needs to measure the time offset, power offset, and frequency offset of the mobile station 3, and calculate the time offset correction, frequency offset correction, and power of the CDMA code from the mobile station 3 with respect to the base station 1. The adjustment amount is used to ensure that the uplink signals from different mobile stations are uplink synchronized with the base station 1, that is, the time, center frequency and power of the signals arriving at the base station 1 are substantially the same.
例如， 对于功率调整， 接入控制装置 203有一个期望的接收功率， 如果第二获取装置 202实际接收到的来自移动站 3的测距信号的实际接 收功率大于期望接收功率，接入控制装置 203就将功率调整量设置为负 值，如果第二获取装置 202实际接收到的来自移动站 3的测距信号的实 际接收功率小于期望接收功率，接入控制装置 203就将功率调整量设置 为正值； 对于时偏校正， 接入控制装置 203要调整接收到的来自移动站 3的信号与第二获取装置 202的开始接收信号的时间边界对齐。 频偏的 校正与时偏的校正类似。  For example, for power adjustment, the access control device 203 has a desired received power, and if the actual received power of the ranging signal from the mobile station 3 actually received by the second obtaining device 202 is greater than the expected received power, the access control device 203 The power adjustment amount is set to a negative value. If the actual received power of the ranging signal actually received by the second obtaining means 202 from the mobile station 3 is less than the expected received power, the access control means 203 sets the power adjustment amount to be positive. Value; For time offset correction, the access control device 203 is to adjust the received signal from the mobile station 3 to be aligned with the time boundary of the start of the second acquisition device 202. The correction of the frequency offset is similar to the correction of the time offset.
同时， 第二获取装置 202也会接收到来自中继站 2的测距报告 消息， 其中包含了中继站 2对来自移动站 3的测距信号进行调整的时 偏校正、频偏校正、功率调整量和中继站 2获取的移动站 3所用的 CDMA 或 CAZAC编码的码的信息和测距资源块编号。  At the same time, the second obtaining means 202 also receives the ranging report message from the relay station 2, which includes the time offset correction, the frequency offset correction, the power adjustment amount and the relay station of the relay station 2 adjusting the ranging signal from the mobile station 3. 2 Obtain the information of the CDMA or CAZAC coded code used by the mobile station 3 and the ranging resource block number.
因此， 第二获取装置 202就收集了来自中继站 2的测距报告消息和 对来自移动站 3的第一测距信号进行信号处理后的调整信息。  Therefore, the second obtaining means 202 collects the ranging report message from the relay station 2 and the adjustment information after signal processing of the first ranging signal from the mobile station 3.
接入控制装置 203根据测距报告消息和调整信息， 综合地考虑以下 多种条件中的一种或多种， 选择合适的基站 1或中继站 2作为移动站 3 的接入站。 判断条件包括以下各项中的任一项或任多项：  The access control device 203 comprehensively considers one or more of the following various conditions based on the ranging report message and the adjustment information, and selects the appropriate base station 1 or relay station 2 as the access station of the mobile station 3. The judgment conditions include any one or more of the following:
-基站 1和中继站 2中负载较轻的；  - the load in base station 1 and relay station 2 is lighter;
-基站 1和中继站 2中的， 移动站 3与之通信时的消耗功率较少 的； -基站 1和中继站 2中的， 移动站 3经由其进行接入时传送时延 较短的； - in the base station 1 and the relay station 2, the mobile station 3 consumes less power when communicating with it; - in base station 1 and relay station 2, when the mobile station 3 accesses via it, the transmission delay is short;
-基站 1和中继站 2中的， 移动站 3经由其进行接入时传送路径 的整体吞吐量较大的；  - in the base station 1 and the relay station 2, the overall throughput of the transmission path through which the mobile station 3 accesses is large;
-基站 1与中继站 2中的， 移动站 3经由其进行接入时错误重传 次数最少的。  - In the base station 1 and the relay station 2, the number of error retransmissions is minimized when the mobile station 3 accesses therethrough.
在一个变化的实施例中， 基站 1 收到来自多个中继站的测距报 告消息， 且基站 1获取了来自移动站 3的第一测距信号进行信号处理 后的调整信息。 则基站 1根据上述判断条件， 从中选择基站 1或者多个 中继站的其中之一作为移动站 3的接入站。  In a variant embodiment, the base station 1 receives a ranging report message from a plurality of relay stations, and the base station 1 acquires the adjustment information after signal processing from the first ranging signal from the mobile station 3. Then, the base station 1 selects one of the base station 1 or a plurality of relay stations as the access station of the mobile station 3 based on the above judgment condition.
当采用上述各项中任多项进行判断时， 各项中的指标可根据进 行适当加权然后进行组合作为判断基准， 其中的加权系数可根据实 际情况或人为确定， 这应是本领域技术人员应能理解的， 在此无需 赘言。  When judging by any of the above items, the indicators in each item may be judged according to the appropriate weighting and then combined, and the weighting coefficient may be determined according to actual conditions or artificially, which should be determined by those skilled in the art. Understandably, there is no need to rumor here.
如果接入控制装置 203选择基站 1作为移动站 3的接入站时， 应 答消息发送装置将测距应答消息通过公共信道广播发送给移动站 3。 其中， 测距应答消息中包含了基站 1对来自移动站 3的测距信号进行 调整的时偏校正、频偏校正、功率调整量和基站 1获取的移动站 3所用 的 CDMA或 CAZAC编码的码的信息以及接收到所述码的测距资源块 编号， 此外， 还包括分配给移动站 3的基本管理连接和主管理连接的标 识符， 以便与移动站 3以基本管理连接为标识符在专用信道上与基站 1 交互测距信号 /响应消息， 并相应地调整物理层参数， 直至基站 1 发送 给移动站 3的测距应答消息含有成功状态的标识。  If the access control device 203 selects the base station 1 as the access station of the mobile station 3, the answering message transmitting means transmits the ranging response message to the mobile station 3 through the common channel broadcast. The ranging response message includes a time offset correction, a frequency offset correction, a power adjustment amount, and a CDMA or CAZAC coded code used by the mobile station 3 for the base station 1 to adjust the ranging signal from the mobile station 3. The information and the ranging resource block number of the received code, in addition, an identifier of the basic management connection and the primary management connection assigned to the mobile station 3, in order to communicate with the mobile station 3 as a basic management connection identifier The ranging signal/response message is exchanged with the base station 1 on the channel, and the physical layer parameters are adjusted accordingly until the ranging response message sent by the base station 1 to the mobile station 3 contains an identifier of the success status.
如果接入控制装置 203选择中继站 2作为移动站 3的接入站时， 其在与中继站通信的专用信道上或者可以在发送数据的数据信道上 将这个指示中继站 2作为移动站 3的接入站的指示消息发送给中继 站 2。优选地该指示消息中包括中继站用于发送测距报告消息所用的 帧的编号， 或者， 该指示消息中包括中继站 2对来自移动站 3的测距 信号进行调整的时偏校正、 频偏校正、 功率调整量和中继站 2获取的移 动站 3所用的 CDMA码或 CAZAC码信息及占用中继站上的测距资源 块的编号。 If the access control device 203 selects the relay station 2 as the access station of the mobile station 3, it may use this indication relay station 2 as an access station of the mobile station 3 on a dedicated channel communicating with the relay station or on a data channel transmitting data. The indication message is sent to the relay station 2. Preferably, the indication message includes a number of a frame used by the relay station to send the ranging report message, or the indication message includes a time offset correction, a frequency offset correction, and a frequency offset correction of the ranging signal adjusted by the relay station 2 from the mobile station 3. Power adjustment amount and shift acquired by relay station 2 The CDMA code or CAZAC code information used by the mobile station 3 and the number of the ranging resource block occupying the relay station.
上述实施例对应了移动站 3收到一个中继站 2与一个基站 1的广播 消息的情景。 在一个变化的实施例中， 多个中继站 2分别使用的第二资 源集合中的互无交集的子资源集合，用于其为移动站 3分配上行测距资 源块。则移动站 3的第一获取装置 102会收到来自多个中继站 2广播消 息，该多个广播消息中分别包括为移动站 3分配的用于发送上行测距信 号的各个不同的资源块。 此外， 第一获取装置 102还收到来自基站 1的 广播消息， 其中， 包括为移动站 3分配的用于发送上行测距信号的第 5 号资源块的指示信息， 也即第 5号资源块的编号 5。 移动站 3根据资源 块信息， 发送测距信号。  The above embodiment corresponds to a scenario in which the mobile station 3 receives a broadcast message from a relay station 2 and a base station 1. In a variant embodiment, a plurality of mutually overlapping sub-resource sets in a second resource set respectively used by a plurality of relay stations 2 are used for allocating an uplink ranging resource block for the mobile station 3. Then, the first obtaining means 102 of the mobile station 3 receives the broadcast messages from the plurality of relay stations 2, each of which includes respective different resource blocks allocated for the mobile station 3 for transmitting the uplink ranging signals. In addition, the first obtaining device 102 further receives a broadcast message from the base station 1, where the indication information of the resource block No. 5 for transmitting the uplink ranging signal allocated to the mobile station 3, that is, the resource block No. 5 is included. Number 5. The mobile station 3 transmits a ranging signal based on the resource block information.
因此， 多个中继站分别会在其对应的资源块上收到来自移动站 3的 笫二测距信号。 则多个中继站会根据接收到的第二测距信号， 生成多个 测距报告消息。 多个中继站将多个测距报告消息报告给基站 1。  Therefore, a plurality of relay stations respectively receive the second ranging signal from the mobile station 3 on their corresponding resource blocks. Then, the plurality of relay stations generate a plurality of ranging report messages according to the received second ranging signal. A plurality of relay stations report a plurality of ranging report messages to the base station 1.
基站 1的接入控制装置 203根据多个测距报告消息和来自移动站 3 的第一测距信号， 根据多个测距报告消息和第一测距信号， 根据预定规 则， 综合地选择其中之一做为移动站 3的接入站， 并将这个指示信息通 过专用信道发送给被选中的中继站或者，若选中基站 1为移动站 3的接 入站， 则直接将测距应答消息通过公共信道发送给移动站 3。  The access control device 203 of the base station 1 comprehensively selects according to the plurality of ranging report messages and the first ranging signal from the mobile station 3 according to the plurality of ranging report messages and the first ranging signal according to a predetermined rule. As an access station of the mobile station 3, and transmitting the indication information to the selected relay station through the dedicated channel or, if the base station 1 is selected as the access station of the mobile station 3, the ranging response message is directly passed through the common channel. Send to mobile station 3.
在上述实施例的一个变化例中，多个不同的且距离足够远的中继站 In a variation of the above embodiment, a plurality of different relay stations that are far enough apart
(也即，移动站以一个资源向一个中继站所发送的测距信号不会对另一 个以相同的资源发送测距信号的移动站与另一个中继站之间的通信造 成干扰）可以复用同一个或多个资源块。 (That is, the ranging signal transmitted by the mobile station to one relay station with one resource does not interfere with the communication between another mobile station transmitting the ranging signal with the same resource and another relay station.) The same one can be reused. Or multiple resource blocks.
对于根据本发明， 移动站在切换小区， 或重新进入网络时的进行测 巨操作， 与以上初始测距时的类似， 在此不再赘述。  For the measurement operation according to the present invention, when the mobile station switches the cell or re-enters the network, it is similar to that of the above initial ranging, and details are not described herein again.
在另一个变化的实施例中， 移动站 3进行周期性测距。 基站 1与中 继站 2分别在广播消息中的 UL-MAP上行映射内向本移动站 3指示了 与基站 1对应的用于周期性测距的第一通信资源，和与中继站 2对应的 用于周期性测距的第二通信资源。 当本移动站 3在内部维护的与基站 1 和与中继站 2的周期性测距的定时器到期以后，移动站 3的第一获取装 置 102根据广播信号中的 UL-MAP上行映射内指示的第一通信资源， 和第二通信资源， 第一发送装置 104向基站 1与中继站 2发送周期测距 信号。基站 1的第三检测装置 201从以用于周期测距的第一通信资源接 收的信号中检测出移动站 3的周期测距的第一测距信号， 中继站 2从以 用于周期测距的第二通信资源接收的信号中检测出移动站 3 的周期测 距的第二测距信号。 而后的装置所执行的操作与以上实施例中的类似， 在此不再赘述。 In another variant embodiment, the mobile station 3 performs periodic ranging. The base station 1 and the relay station 2 respectively indicate to the mobile station 3, in the UL-MAP uplink mapping in the broadcast message, the first communication resource for periodic ranging corresponding to the base station 1, and the periodicity corresponding to the relay station 2 for periodicity. The second communication resource of ranging. When the mobile station 3 is internally maintained with the base station 1 And after expiration of the timer with the periodic ranging of the relay station 2, the first obtaining means 102 of the mobile station 3 according to the first communication resource indicated in the UL-MAP uplink mapping in the broadcast signal, and the second communication resource, A transmitting device 104 transmits a periodic ranging signal to the base station 1 and the relay station 2. The third detecting means 201 of the base station 1 detects a first ranging signal of the periodic ranging of the mobile station 3 from a signal received by the first communication resource for periodic ranging, and the relay station 2 is used for periodic ranging. A second ranging signal of the periodic ranging of the mobile station 3 is detected in the signal received by the second communication resource. The operations performed by the subsequent devices are similar to those in the above embodiments, and are not described herein again.
以上对本发明的实施例进行了描述， 但是本发明并不局限于特 定的系统、 设备和具体协议， 本领域内技术人员可以在所附权利要 求的范围内做出各种变形或修改。  The embodiments of the present invention have been described above, but the present invention is not limited to the specific systems, equipment, and specific protocols, and various modifications and changes can be made by those skilled in the art within the scope of the appended claims.

Claims

权 利 要 求 书 Claims
1 · 一种在无线通信网络的移动站中用于与基站和中继站进行测 距操作的方法， 其中， 包括以下步骤： A method for performing a ranging operation with a base station and a relay station in a mobile station of a wireless communication network, comprising the steps of:
a. 当需要向所述基站和所述基站所辖的一个或多个中继站发送 测距信号时， 获取用于指示向所述基站发送测距信号的第一通信资 源的第一资源指示信息和向所述一个或多个中继站发送测距信号的 一个或多个第二通信资源的第二资源指示信息， 其中， 所述第一通 信资源与所述第二通信资源不同；  Obtaining, when the ranging signal needs to be sent to the base station and one or more relay stations under the control of the base station, acquiring first resource indication information for indicating a first communication resource that sends a ranging signal to the base station, and Transmitting, to the one or more relay stations, second resource indication information of one or more second communication resources of the ranging signal, where the first communication resource is different from the second communication resource;
b. 根据所述第一通信资源发送第一测距信号并根据所述第二通 信资源发送第二测距信号。  b. transmitting a first ranging signal according to the first communication resource and transmitting a second ranging signal according to the second communication resource.
2. 根据权利要求 1所述的方法， 其特征在于， 所述步骤 a之前 还包括：  2. The method according to claim 1, wherein before the step a, the method further comprises:
-分别检测与基站之间和与中继站之间的第一下行信号质量和 第二下行信号质量；  - detecting a first downlink signal quality and a second downlink signal quality between the base station and the relay station, respectively;
-当所述第一下行信号质量和第二下行信号质量分别高于第一 和第二阈值， 则确定需要向所述基站发送所述第一测距信号并向所 述中继站发送所述第二测距信号。  Determining that the first ranging signal needs to be sent to the base station and the first station is sent to the relay station when the first downlink signal quality and the second downlink signal quality are respectively higher than the first and second thresholds Two ranging signals.
3. 根据权利要求 2所述的方法， 其特征在于， 所述检测与基站 之间和与中继站之间的第一下行信号质量和第二下行信号质量的步 骤包括：  The method according to claim 2, wherein the detecting the first downlink signal quality and the second downlink signal quality between the base station and the relay station comprises:
-接收分别来自所述基站和来自所述中继站的第一下行信号和 第二下行信号；  Receiving a first downlink signal and a second downlink signal from the base station and from the relay station, respectively;
-根据所述第一下行信号和第二下行信号来检测所述第一下行 信号质量和第二下行信号质量。  - detecting the first downlink signal quality and the second downlink signal quality based on the first downlink signal and the second downlink signal.
4. 根据权利要求 3所述的方法， 其中， 所述第一下行信号包括 第一广播消息， 所述第二下行信号包括第二广播消息， 其特征在于, 所述检测与基站之间和与中继站之间的第一下行信号质量和第二下 行信号质量的步骤包括： -根据所述第一广播消息和第二广播消息来检测所述第一下行 信号质量和所述第二下行信号质量； The method according to claim 3, wherein the first downlink signal comprises a first broadcast message, and the second downlink signal comprises a second broadcast message, characterized in that: The steps of the first downlink signal quality and the second downlink signal quality with the relay station include: - detecting the first downlink signal quality and the second downlink signal quality according to the first broadcast message and the second broadcast message;
其中， 所述步骤 a还包括：  The step a further includes:
-当需要向所述基站和所述中继站发送测距信号时， 由所述第 一和第二广播消息中分别提取所述第一资源指示信息和第二资源指 示信息。  - when the ranging signal needs to be transmitted to the base station and the relay station, the first resource indication information and the second resource indication information are respectively extracted from the first and second broadcast messages.
5. 根据权利要求 1所述的方法， 其特征在于， 在所述步骤 a之 前还包括：  5. The method according to claim 1, wherein before the step a, the method further comprises:
-当所述移动站为周期性地向所述基站发送所述第一测距信号 和向所述中继站发送所述第二测距信号时， 判断是否已到预定发送 时间；  - when the mobile station periodically transmits the first ranging signal to the base station and the second ranging signal to the relay station, it is determined whether a predetermined transmission time has elapsed;
-若已到预定发送时间， 则确定需要向所述基站发送所述第一 测距信号和向所述中继站发送所述第二测距信号。  - if the scheduled transmission time has elapsed, it is determined that the first ranging signal needs to be transmitted to the base station and the second ranging signal is transmitted to the relay station.
6. 根据权利要求 1至 5中任一项所述的方法， 其特征在于， 还 包括：  The method according to any one of claims 1 to 5, further comprising:
C. 当自发送所述第一和第二测距信号起超过预定时间仍未收到 来自所述基站的第一测距应答消息， 也未收到来自所述中继站的第 二测距应答消息时， 返回所述步骤 b, 直至满足预定条件。  C. not receiving the first ranging response message from the base station after transmitting the first and second ranging signals for more than a predetermined time, nor receiving the second ranging response message from the relay station When the step b is returned, the predetermined condition is satisfied.
7. 根据权利要求 6所述的方法， 其特征在于， 所述第一通信资 源包括与所述基站对应的一个或多个第一时频资源， 所述第二通信 资源包括与所述中继站对应的一个或多个第二时频资源，所述步骤 b 还包括：  The method according to claim 6, wherein the first communication resource comprises one or more first time-frequency resources corresponding to the base station, and the second communication resource comprises a corresponding to the relay station. The one or more second time-frequency resources, the step b further includes:
bl . 从所述一个或多个第一时频资源中随机选择一个第一时频 资源； 从所述一个或多个第二时频资源中随机选择一个第二时频资 源；  Blending a first time-frequency resource from the one or more first time-frequency resources; randomly selecting a second time-frequency resource from the one or more second time-frequency resources;
b2. 根据所选择的第一时频资源按第一发射功率发送所述第一 测距信号并根据所选择的第二时频资源按第二发射功率发送所述第 二测距信号；  And transmitting the first ranging signal according to the selected first time-frequency resource according to the first transmit power, and transmitting the second ranging signal according to the selected second time-frequency resource according to the second transmit power;
所述步骤 c还包括： 当自发送所述第一和第二测距信号起超过 预定时间仍未收到来自所述基站的第一测距应答消息， 也未收到来 自所述中继站的第二测距应答消息时， 将所述第一发射功率增大第 一预定功率增量和 /或将所述第二发射功率增大第二预定功率增量， 返回所述步骤 b, 直至满足预定条件。 The step c further includes: exceeding when the first and second ranging signals are transmitted The first ranging power is increased by the first predetermined power increment when the first ranging response message from the base station is not received, and the second ranging response message from the relay station is not received. And/or increasing the second transmit power by a second predetermined power increment, returning to step b until a predetermined condition is met.
8. 根据权利要求 7所述的方法， 其特征在于， 在所述步骤 b之 前还包括步骤 t:  8. The method according to claim 7, wherein the step b is further included before the step b:
根据所述第一下行信号来确定所述第一发射功率， 和根据所述 第二下行信号确定所述第二发射功率。  Determining the first transmit power according to the first downlink signal, and determining the second transmit power according to the second downlink signal.
9. 根据权利要求 6至 8中任一项所述的方法， 其特征在于， 所 述预定条件包括：  The method according to any one of claims 6 to 8, wherein the predetermined condition comprises:
-重复发送所述第一测距信号和第二测距信号的次数超过预定 次数； 或  - repeatedly transmitting the first ranging signal and the second ranging signal more than a predetermined number of times; or
―所述第一发射功率达到第一预定功率阈值且所述第二发射功 率达到第二预定功率阈值。  - the first transmit power reaches a first predetermined power threshold and the second transmit power reaches a second predetermined power threshold.
10. 根据权利要求 1至 9中任一项所述的方法， 其特征在于， 所述步骤 a还包括：  The method according to any one of claims 1 to 9, wherein the step a further comprises:
当需要向多个中继站发送多个第二测距信号时， 向所述多个中 继站发送测距信号， 其中， 向所述多个中继站中多个相邻中继站发 送测距信号的多个第二通信资源互不相同，向所述多个中继站中多个 非相邻中继站发送测距信号的多个第二通信资源为相同。  When a plurality of second ranging signals need to be transmitted to the plurality of relay stations, transmitting a ranging signal to the plurality of relay stations, wherein the plurality of second relaying stations of the plurality of relay stations transmit the plurality of second of the ranging signals The communication resources are different from each other, and the plurality of second communication resources that transmit the ranging signals to the plurality of non-adjacent relay stations of the plurality of relay stations are the same.
11. 一种在无线通信网络的基站中用于与移动站和中继站进行 测距操作的方法， 其中， 包括以下步骤：  A method for performing a ranging operation with a mobile station and a relay station in a base station of a wireless communication network, comprising the steps of:
i. 获取来自所述移动站的以与本基站对应的第一通信资源发送 的第一测距信号， 和来自一个或多个中继站的用于报告所述移动站 以与所述一个或多个中继站对应的第二通信资源发给所述一个或多 个中继站的第二测距信号的测距报告消息， 其中， 所述第一通信资 源与所述第二通信资源不同；  i. acquiring a first ranging signal transmitted by the mobile station from a first communication resource corresponding to the base station, and from the one or more relay stations for reporting the mobile station to the one or more a ranging report message of the second ranging signal corresponding to the relay station to the second ranging signal of the one or more relay stations, where the first communication resource is different from the second communication resource;
ii. 根据所述第一测距信号和所述测距报告消息， 按照预定规则 选择所述本基站或所述一个或多个中继站中的一个向所述移动站发 送测距应答消息， 并将所选择的所述本基站或所述一个或多个中继 站中的一个作为所述移动站的接入站。 Ii. according to the first ranging signal and the ranging report message, selecting one of the base station or the one or more relay stations to send to the mobile station according to a predetermined rule And sending a ranging response message, and selecting one of the selected base station or the one or more relay stations as an access station of the mobile station.
12. 根据权利要求 11所述的方法， 其特征在于， 所述的预定规 则包括以下各项中的任一项或任多项：  The method according to claim 11, wherein the predetermined rule comprises any one or more of the following:
- 所述基站和多个中继站中负载较轻的；  - the base station and the plurality of relay stations are lightly loaded;
- 所述基站和多个中继站中的， 移动站与之通信时耗功率较少 的；  - in the base station and the plurality of relay stations, the mobile station consumes less power when communicating with the mobile station;
- 所述基站和多个中继站中的，移动站经由其进行接入时延较短 的；  - of the base station and the plurality of relay stations, wherein the mobile station has a shorter access delay;
- 所述基站和多个中继站中的，移动站经由其进行接入时传送路 径的整体吞吐量较大的；  - the overall throughput of the transmission path through which the mobile station accesses the base station and the plurality of relay stations;
- 所述基站与多个中继站中的，移动站经由其进行接入时错误重 传次数最少的。  - the number of error retransmissions of the base station and the plurality of relay stations via which the mobile station accesses.
13. 根据权利要求 11或 12所述的方法， 其特征在于， 所述步骤 i之前还包括以下步驟：  The method according to claim 11 or 12, wherein the step i further comprises the following steps:
- 发送第一广播消息， 其中， 所述第一广播消息包括与所述本基 站所对应的第一通信资源指示信息， 所述第一通信资源指示信息用 于指示移动站向所述基站发送测距信号的第一通信资源。  Transmitting a first broadcast message, where the first broadcast message includes first communication resource indication information corresponding to the local base station, where the first communication resource indication information is used to instruct the mobile station to send a measurement to the base station The first communication resource from the signal.
14. 根据权利要求 11至 13中任一项所述的方法， 其特征在于， 当所述移动站需要向多个中继站发送多个第二测距信号时， 所述移 动站向所述多个中继站中多个相邻中继站发送测距信号的多个第二 通信资源互不相同， 所述移动站向所述多个中继站中多个非相邻中 继站发送测距信号的多个第二通信资源为相同。  The method according to any one of claims 11 to 13, wherein when the mobile station needs to send a plurality of second ranging signals to a plurality of relay stations, the mobile station The plurality of second communication resources that the plurality of adjacent relay stations in the relay station transmit the ranging signal are different from each other, and the mobile station sends the plurality of second communication resources of the ranging signal to the plurality of non-adjacent relay stations of the plurality of relay stations. For the same.
15. 根据权利要求 11至 14中任一项所述的方法， 其特征在于， 所述步骤 i还包括：  The method according to any one of claims 11 to 14, wherein the step i further comprises:
-根据所述第一通信资源，从以所述第一通信资源接收的信号中 检测出所述移动站以所述第一通信资源发送的所述第一测距信号。  - detecting, according to the first communication resource, the first ranging signal transmitted by the mobile station with the first communication resource from a signal received by the first communication resource.
16. 一种在无线通信网絡的移动站中用于与基站和中继站进行 测距操作的第一搡作装置， 其中， 包括 i 第一获取装置， 用于当需要向所述基站和所述基站所辖的一个 或多个中继站发送测距信号时， 获取用于指示向所述基站发送测距 信号的第一通信资源的第一资源指示信息和向所述一个或多个中继 站发送测距信号的一个或多个第二通信资源的第二资源指示信息， 其中， 所述第一通信资源与所述第二通信资源不同； 16. A first processing apparatus for performing ranging operations with a base station and a relay station in a mobile station of a wireless communication network, wherein a first acquiring means, configured to: when the ranging signal needs to be sent to the base station and one or more relay stations under the control of the base station, acquire a first communication resource for indicating that the ranging signal is sent to the base station a resource indication information and second resource indication information of one or more second communication resources that transmit a ranging signal to the one or more relay stations, where the first communication resource is different from the second communication resource;
第一发送装置， 用于以所述第一通信资源发送第一测距信号并 以所述第二通信资源发送第二测距信号。  a first sending device, configured to send a first ranging signal by using the first communication resource, and send a second ranging signal by using the second communication resource.
17. 根据权利要求 16所述的第一操作装置， 其特征在于， 还包 括：  The first operating device according to claim 16, further comprising:
第一检测装置， 用于分别检测与基站之间和与中继站之间的第 一下行信号盾量和第二下行信号质量；  a first detecting device, configured to separately detect a first downlink signal shield and a second downlink signal quality between the base station and the relay station;
第一确定发送装置， 用于当所述第一下行信号质量和第二下行 信号质量分别高于第一和第二阈值， 则确定需要向所述基站发送所 述第一测距信号并向所述中继站发送所述第二测距信号。  a first determining sending device, configured to: when the first downlink signal quality and the second downlink signal quality are respectively higher than the first and second thresholds, determine that the first ranging signal needs to be sent to the base station The relay station transmits the second ranging signal.
18. 根据权利要求 17所述的笫一 作装置， 其特征在于， 所述 第一检测装置包括：  18. The apparatus according to claim 17, wherein the first detecting means comprises:
接收装置， 用于接收分别来自所述基站和来自所述中继站的第 一下行信号和第二下行信号；  a receiving device, configured to receive a first downlink signal and a second downlink signal from the base station and from the relay station, respectively;
第二检测装置， 用于根据所述第一下行信号和第二下行信号来 检测所述第一下行信号质量和第二下行信号质量。  And a second detecting device, configured to detect the first downlink signal quality and the second downlink signal quality according to the first downlink signal and the second downlink signal.
19. 根据权利要求 18所述的第一操作装置， 其中， 所述第一下 行信号包括第一广播消息， 所述第二下行信号包括第二广播消息， 其特征在于， 所述第二检测装置还用于：  The first operating device according to claim 18, wherein the first downlink signal comprises a first broadcast message, and the second downlink signal comprises a second broadcast message, wherein the second detection The device is also used to:
-根据所述第一广播消息和第二广播消息来检测所述第一下行 信号质量和所述第二下行信号质量；  - detecting the first downlink signal quality and the second downlink signal quality according to the first broadcast message and the second broadcast message;
其中， 所述第一获取装置还用于：  The first acquiring device is further configured to:
-当需要向所述基站和所述中继站发送测距信号时， 由所述第 一和第二广播消息中分别提取所述第一资源指示信息和第二资源指 示信息。 - when the ranging signal needs to be sent to the base station and the relay station, the first resource indication information and the second resource indication information are respectively extracted by the first and second broadcast messages.
20. 根据权利要求 16所述的第一操作装置， 其特征在于， 还包 括： 20. The first operating device according to claim 16, further comprising:
第一判断装置， 用于判断当所述移动站为周期性地向所述基站 发送所述第一测距信号和向所述中继站发送所述第二测距信号时， 判断是否已到预定发送时间；  a first determining device, configured to determine, when the mobile station periodically sends the first ranging signal to the base station, and sends the second ranging signal to the relay station, whether it is scheduled to be sent Time
第二确定发送装置， 用于若已到预定发送时间， 则确定需要向 所述基站发送所述第一测距信号和向所述中继站发送所述第二测距 信号。  And a second determining transmitting means, configured to: if the predetermined transmission time has elapsed, determine that the first ranging signal needs to be sent to the base station and the second ranging signal is sent to the relay station.
21. 根据权利要求 16至 20中任一项所述的第一操作装置，其特 征在于， 还包括：  The first operating device according to any one of claims 16 to 20, further comprising:
第二判断装置， 用于当自发送所述第一和第二测距信号起超过 预定时间仍未收到来自所述基站的第一测距应答消息， 也未收到来 自所述中继站的第二测距应答消息时， 执行所述第一发送装置和所 述笫二判断装置所进行的操作， 直至满足预定条件。  a second determining device, configured to not receive the first ranging response message from the base station when the first and second ranging signals are sent for more than a predetermined time, and not receive the first ranging from the relay station In the case of the second ranging response message, the operations performed by the first transmitting device and the second determining device are performed until a predetermined condition is satisfied.
22. 根据权利要求 21所述的第一操作装置， 其特征在于， 所述 第一通信资源包括与所述基站对应的第一时频资源， 所述第二通信 资源包括与所述中继站对应的第二时频资源， 所述第一发送装置还 包括：  The first operating device according to claim 21, wherein the first communication resource comprises a first time-frequency resource corresponding to the base station, and the second communication resource comprises a corresponding to the relay station. The second time-frequency resource, the first sending device further includes:
第二发送装置， 用于以所述第一时频资源按第一发射功率发送 所述第一测距信号并以所述第二时频资源按第二发射功率发送所述 第二测距信号；  a second sending device, configured to send, by using the first time-frequency resource, the first ranging signal according to a first transmit power, and send the second ranging signal by using the second time-frequency resource according to a second transmit power ;
所述第二判断装置还用于： 当自发送所述第一和第二测距信号 起超过预定时间仍未收到来自所述基站的第一测距应答消息， 也未 收到来自所述中继站的第二测距应答消息时， 将所述第一发射功率 增大第一预定功率增量和 /或将所述第二发射功率增大第二预定功率 增量， 执行所述第一发送装置和所述第二判断装置所进行的操作， 直至满足预定条件。  The second determining means is further configured to: when the first ranging response message from the base station is not received, more than a predetermined time since the sending of the first and second ranging signals, And transmitting, by the second ranging response message of the relay station, the first transmit power by a first predetermined power increment and/or increasing the second transmit power by a second predetermined power increment, performing the first sending The operation performed by the device and the second determining device until a predetermined condition is satisfied.
23. 根据权利要求 22所迷的第一操作装置， 其特征在于， 还包 括发射功率确定装置， 用于根据所述第一下行信号来确定所述第一 发射功率， 和根据所述第二下行信号确定所述第二发射功率。 The first operating device according to claim 22, further comprising: transmit power determining means, configured to determine the first according to the first downlink signal Transmitting power, and determining the second transmit power based on the second downlink signal.
24. 根据权利要求 21至 23中任一项所述的第一操作装置，其特 征在于， 所述预定条件包括：  The first operating device according to any one of claims 21 to 23, wherein the predetermined condition comprises:
-重复发送所述第一测距信号和第二测距信号的次数超过预定 次数； 或  - repeatedly transmitting the first ranging signal and the second ranging signal more than a predetermined number of times; or
-所述第一发射功率达到第一预定功率阈值且所述第二发射功 率达到第二预定功率阈值。  The first transmit power reaches a first predetermined power threshold and the second transmit power reaches a second predetermined power threshold.
25. 根据权利要求 16至 24中任一项所述的第一操作装置， 其 特征在于， 所述第一获取装置还用于，  The first operating device according to any one of claims 16 to 24, wherein the first obtaining device is further configured to:
当需要向多个中继站发送多个第二测距信号时， 向所述多个中 继站发送测距信号， 其中， 向所述多个中继站中多个相邻中继站发 送测距信号的多个第二通信资源互不相同，向所述多个中继站中多个 非相邻中继站发送测距信号的多个第二通信资源为相同。  When a plurality of second ranging signals need to be transmitted to the plurality of relay stations, transmitting a ranging signal to the plurality of relay stations, wherein the plurality of second relaying stations of the plurality of relay stations transmit the plurality of second of the ranging signals The communication resources are different from each other, and the plurality of second communication resources that transmit the ranging signals to the plurality of non-adjacent relay stations of the plurality of relay stations are the same.
26. 一种在无线通信网络的基站中用于与移动站和中继站进行 测距操作的第二操作装置， 其中， 包括：  26. A second operating device for performing a ranging operation with a mobile station and a relay station in a base station of a wireless communication network, comprising:
第二获取装置， 用于获取来自所述移动站的以与本基站对应的 第一通信资源发送的第一测距信号， 和来自一个或多个中继站的用 于 4艮告所述移动站以与所述一个或多个中继站对应的第二通信资源 发给所述一个或多个中继站的第二测距信号的测距报告消息， 其中， 所述第一通信资源与所述第二通信资源不同；  a second acquiring device, configured to acquire a first ranging signal sent by the mobile station from a first communication resource corresponding to the base station, and a mobile station from the one or more relay stations for reporting the mobile station a ranging report message of the second ranging signal sent to the one or more relay stations by the second communication resource corresponding to the one or more relay stations, where the first communication resource and the second communication resource Different
接入控制装置， 用于根据所述第一测距信号和所述测距报告消 息， 按照预定规则选择所述本基站或所述一个或多个中继站向所述 移动站发送测距应答消息， 并将所选择的所述本基站或所述一个或 多个中继站中的一个作为所述移动站的接入站。  And the access control device is configured to: according to the first ranging signal and the ranging report message, select the base station or the one or more relay stations to send a ranging response message to the mobile station according to a predetermined rule, And selecting one of the base station or the one or more relay stations selected as the access station of the mobile station.
27. 根据权利要求 26所述的第二操作装置， 其特征在于， 所述 的预定规则包括以下各项中的任一项或任多项：  27. The second operating device according to claim 26, wherein the predetermined rule comprises any one or more of the following:
- 所述基站和多个中继站中负载较轻的；  - the base station and the plurality of relay stations are lightly loaded;
- 所述基站和多个中继站中的，移动站与之通信时消耗功率较少 的； - 所述基站和多个中继站中的，移动站经由其进行接入时传送时 延较短的； - of the base station and the plurality of relay stations, the mobile station consumes less power when communicating with it; - of the base station and the plurality of relay stations, when the mobile station accesses via the mobile station, the transmission delay is short;
- 所述基站和多个中继站中的，移动站经由其进行接入时传送路 径的整体吞吐量较大的；  - the overall throughput of the transmission path through which the mobile station accesses the base station and the plurality of relay stations;
- 所述基站与多个中继站中的，移动站经由其进行接入时错误重 传次数最少的。  - the number of error retransmissions of the base station and the plurality of relay stations via which the mobile station accesses.
28. 根据权利要求 26或 27所述的第二操作装置， 其特征在于， 还包括：  The second operating device according to claim 26 or 27, further comprising:
第三发送装置， 用于发送第一广播消息， 其中， 所述第一广播 消息包括与所述本基站所对应的第一通信资源指示信息， 所述第一 通信资源指示信息用于指示移动站向所述基站发送测距信号的第一 通信资源。  a third sending device, configured to send a first broadcast message, where the first broadcast message includes first communication resource indication information corresponding to the local base station, where the first communication resource indication information is used to indicate a mobile station Transmitting, by the base station, a first communication resource of a ranging signal.
29. 根据权利要求 26至 28中任一项所述的第二操作装置， 其 特征在于， 当所述移动站需要向多个中继站发送多个第二测距信号 时， 所述移动站向所述多个中继站中多个相邻中继站发送测距信号 的多个第二通信资源互不相同， 所述移动站向所述多个中继站中多 个非相邻中继站发送测距信号的多个第二通信资源为相同。  The second operating device according to any one of claims 26 to 28, wherein when the mobile station needs to transmit a plurality of second ranging signals to a plurality of relay stations, the mobile station The plurality of second communication resources in which the plurality of adjacent relay stations transmit the ranging signals are different from each other, and the mobile station transmits the plurality of ranging signals to the plurality of non-adjacent relay stations of the plurality of relay stations. The second communication resource is the same.
30. 根据权利要求 26至 29中任一项所述的第二操作装置，其特 征在于， 所述第二获取装置还包括：  The second operating device according to any one of claims 26 to 29, wherein the second obtaining means further comprises:
第三检测装置， 用于根据所述第一通信资源， 从以所述第一通 信资源接收的信号中检测出所述移动站以所述第一通信资源发送的 所述第一测距信号。  And a third detecting device, configured to detect, according to the first communication resource, the first ranging signal that is sent by the mobile station by using the first communication resource from a signal received by the first communication resource.
31. 一种在无线通信网络中的移动站， 其特征在于， 包括根据权 利要求 16至 25中任一项所述的用于与基站和中继站进行测距操作 的第一操作装置。  A mobile station in a wireless communication network, characterized by comprising the first operating means for performing a ranging operation with a base station and a relay station according to any one of claims 16 to 25.
32. —种在无线通信网络中的基站， 其特征在于， 包括根据权利 要求 26-30中任一项所述的用于与移动站和中继站进行测距操作的 第二操作装置。  32. A base station in a wireless communication network, characterized by comprising a second operating device for performing a ranging operation with a mobile station and a relay station according to any one of claims 26-30.
33. 一种在无线通信网络中用于基站、中继站及移动站之间的测 距操作的方法， 其中， 包括以下步骤： 33. A method for measuring between a base station, a relay station and a mobile station in a wireless communication network The method of operation, including the following steps:
A. 当需要向所述基站和所述基站所辖的一个或多个中继站发 送测距信号时， 所述移动站获取用于指示向所述基站发送测距信号 的第一通信资源的第一资源指示信息和向所述一个或多个中继站发 送测距信号的一个或多个第二通信资源的第二资源指示信息， 其中， 所述第一通信资源与所述第二通信资源不同；  A. when the ranging signal needs to be sent to the base station and one or more relay stations under the control of the base station, the mobile station acquires a first communication resource for indicating a measurement signal to the base station Resource indication information and second resource indication information of one or more second communication resources that transmit a ranging signal to the one or more relay stations, wherein the first communication resource is different from the second communication resource;
B. 所述移动站根据所述第一通信资源发送第一测距信号并根 据所述第二通信资源发送第二测距信号；  B. The mobile station sends a first ranging signal according to the first communication resource, and sends a second ranging signal according to the second communication resource;
C. 所述基站获取来自所述移动站的以与本基站对应的笫一通 信资源发送的第一测距信号；  C. The base station acquires a first ranging signal sent by the mobile station from a first communication resource corresponding to the base station;
所述步骤 B之后还包括：  After the step B, the method further includes:
I . 所述一个或多个中继站中的每个中继站获取来自所述移动站 的以与所述中继站相对应的第二通信资源发送的所述第二测距信 号；  I. each of the one or more relay stations acquires the second ranging signal transmitted by the second communication resource corresponding to the relay station from the mobile station;
II. 所述一个或多个中继站中的每个中继站根据其所获取的第 二测距信号， 向所述基站发送测距报告消息；  II. each of the one or more relay stations sends a ranging report message to the base station according to the second ranging signal acquired by the relay station;
III. 所述基站获得来自所述各个中继站的测距报告消息； 在所述步骤 III之后且在所述步骤 C之后， 还包括：  The base station obtains a ranging report message from the respective relay stations; after the step III and after the step C, the method further includes:
- 所述基站根据所述第一测距信号和所述测距报告消息，按照预 定规则选择所述本基站或所述一个或多个中继站中的一个来向所述 移动站发送测距应答消息， 并将所选择的所述本基站或所述一个或 多个中继站中的一个作为所述移动站的接入站。  - the base station selects one of the local base station or the one or more relay stations according to a predetermined rule according to the first ranging signal and the ranging report message to send a ranging response message to the mobile station according to a predetermined rule And selecting one of the selected base station or the one or more relay stations as the access station of the mobile station.
PCT/CN2008/001255 2008-07-01 2008-07-01 Method and apparatus for ranging in wireless relay network WO2010000093A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11350381B2 (en) 2017-10-26 2022-05-31 Benchmark Electronics, Inc. Mesh ranging and network message and slot structure for ad-hoc networks and method therefor
IT202100025124A1 (en) 2021-09-30 2023-03-30 Univ Degli Studi Di Firenze MEDICINAL PRODUCT FOR USE IN THE PREVENTION OR TREATMENT OF NOCICEPTIVE AND/OR VISCERAL PAIN

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070076684A1 (en) * 2005-10-04 2007-04-05 Samsung Electronics Co., Ltd. Apparatus and method for relaying ranging messages in multi-hop relay broadband wireless access communication system
US20070153758A1 (en) * 2006-01-03 2007-07-05 Samsung Electronics Co., Ltd. Apparatus and method for selecting relay station using relay station preamble signal in a multi-hop relay broadband wireless access communication system
CN101064901A (en) * 2006-04-29 2007-10-31 上海贝尔阿尔卡特股份有限公司 Access method for wireless multi-hop relay access network, relay station, base station, and system
CN101162984A (en) * 2006-10-12 2008-04-16 中兴通讯股份有限公司 Mobile terminal access method of TDD communication system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101064547B (en) * 2006-04-27 2010-11-03 上海贝尔阿尔卡特股份有限公司 Relay method of wireless access system and its base station, repeater facility and relay system
CN101064911B (en) * 2006-04-28 2012-08-22 上海贝尔阿尔卡特股份有限公司 Switch control method, relay station and base station for wireless access system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070076684A1 (en) * 2005-10-04 2007-04-05 Samsung Electronics Co., Ltd. Apparatus and method for relaying ranging messages in multi-hop relay broadband wireless access communication system
US20070153758A1 (en) * 2006-01-03 2007-07-05 Samsung Electronics Co., Ltd. Apparatus and method for selecting relay station using relay station preamble signal in a multi-hop relay broadband wireless access communication system
CN101064901A (en) * 2006-04-29 2007-10-31 上海贝尔阿尔卡特股份有限公司 Access method for wireless multi-hop relay access network, relay station, base station, and system
CN101162984A (en) * 2006-10-12 2008-04-16 中兴通讯股份有限公司 Mobile terminal access method of TDD communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11350381B2 (en) 2017-10-26 2022-05-31 Benchmark Electronics, Inc. Mesh ranging and network message and slot structure for ad-hoc networks and method therefor
IT202100025124A1 (en) 2021-09-30 2023-03-30 Univ Degli Studi Di Firenze MEDICINAL PRODUCT FOR USE IN THE PREVENTION OR TREATMENT OF NOCICEPTIVE AND/OR VISCERAL PAIN

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