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Publication numberCN101305625 A
Publication typeApplication
Application numberCN 200680042157
PCT numberPCT/US2006/038080
Publication date12 Nov 2008
Filing date29 Sep 2006
Priority date7 Oct 2005
Also published asCA2625166A1, EP1955560A1, US7440781, US20070082714, WO2007044253A1
Publication number200680042157.4, CN 101305625 A, CN 101305625A, CN 200680042157, CN-A-101305625, CN101305625 A, CN101305625A, CN200680042157, CN200680042157.4, PCT/2006/38080, PCT/US/2006/038080, PCT/US/2006/38080, PCT/US/6/038080, PCT/US/6/38080, PCT/US2006/038080, PCT/US2006/38080, PCT/US2006038080, PCT/US200638080, PCT/US6/038080, PCT/US6/38080, PCT/US6038080, PCT/US638080
InventorsP巴塔, R比奇
Applicant讯宝科技公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
System and method for power conservation in a wireless device
CN 101305625 A
Abstract
Described is a system and method for power conservation in a wireless device. The method includes switching, by a wireless computing unit, from a first communication mode to a second communication mode at a predefined time interval. The unit receives wireless signals only when in the second communication mode, and the first communication mode is a power-save mode. The unit then receives a wireless signal, and initiates a wireless connection to a wireless arrangement to obtain traffic data from the wireless arrangement when the signal includes a traffic data indicator which is indicative of existence of the traffic data. The unit switches into the first communication mode when the indicator is absent from the signal.
Claims(22)  translated from Chinese
1. 一种方法,包括: 由无线计算单元以一预定义时间间隔从第一通信模式切换至第二通信模式,其中所述单元仅在所述第二通信模式中时才接收无线信号,所述第一通信模式是功率节省模式; 由所述单元接收无线信号; 当所述信号包括话务数据指示符时发起对无线装置的无线连接以从所述无线装置获得话务数据,所述指示符是指示存在所述话务数据;以及当所述信号中没有所述指示符时将所述单元切换至所述第一通信模式。 1. A method comprising: the wireless computing unit at a predefined time interval from the first communication mode is switched to the second communication mode in which the unit receives a radio signal when only the second communication mode, the said first communication mode is the power saving mode; receiving radio signals generated by the unit; when the signal initiating a wireless connection to a wireless device includes an indicator to obtain traffic data, then the traffic data from the wireless device, the indication Fu is an indication of the presence of said traffic data; and when the signal when the indicator is not the unit switches to the first communication mode.
2. 如权利要求1所述的方法,其特征在于,所述无线装置包括服务器、 交换机、接入点、和接入端口中至少之一。 2. The method according to claim 1, characterized in that said means comprises at least one of the wireless servers, switches, access points, and the access port.
3. 如权利要求1所述的方法,其特征在于,所述无线计算单元包括基于图像的扫描器、基于激光的扫描器、RFID读取器、PDA、蜂窝电话、和网络接口卡中的至少之一。 3. The method according to claim 1, wherein said calculating means comprises image-based wireless scanner, laser-based scanners, RFID readers, PDA, cellular phone, and a network interface card, at least one.
4. 如权利要求1所述的方法,其特征在于,所述话务数据包括定址到所述单元的数据分组、VoIP分组、和管理分组中的至少之一。 4. The method according to claim 1, characterized in that said data traffic comprises data packets addressed to the unit, at least one of the VoIP packets, and management packets.
5. 如权利要求1所述的方法,其特征在于,所述预定义时间间隔约为3 到5秒。 5. The method according to claim 1, characterized in that the predefined time interval is approximately 3-5 seconds.
6. 如权利要求1所述的方法,其特征在于,所述接收步骤包括以下子步骤:筛査射频信道的预定部分上的无线信号以寻找包括所述指示符的所述信号。 6. The method according to claim 1, wherein said receiving step comprises the sub-steps of: screening a predetermined portion of a radio signal on a radio channel to find the signal comprising the indicator.
7. 如权利要求l所述的方法,其特征在于,还包括: 从所述无线装置下载所述话务数据。 7. The method according to claim l, characterized in that, further comprising: a traffic data downloaded from the wireless device.
8. 如权利要求1所述的方法,其特征在于,所述无线信号是信标和广播分组之一。 8. The method according to claim 1, characterized in that the radio signal is one of a beacon and a broadcast packet.
9. 如权利要求l所述的方法,其特征在于,还包括在第一切换步骤之前: 终止对所述无线装置的无线连接。 9. The method according to claim l, characterized in that, prior to the first switch further comprises a step of: terminating the wireless connection of the wireless device.
10. 如权利要求1所述的方法,其特征在于,所述指示符包括所述单元的MAC地址和由所述无线装置指派给所述单元的唯一性标识符中的至少之一。 10. The method according to claim 1, characterized in that said indicator includes at least one MAC address is assigned by the unit and the wireless device to the unit of the unique identifier.
11. 一种系统,包括:无线计算单元,其具有第一和第二通信模式,所述第一通信模式是功率节省模式,所述单元仅在所述第二通信模式中时才接收无线信号,所述单元以一预定义时间间隔切换至所述第二模式;以及网络管理装置,其仅在存在给所述单元的话务数据时才发送带有话务数据指示符的无线信号;其中当所述单元接收到包括所述指示符的所述信号时,所述单元发起对所述装置的无线连接以获取所述话务数据,以及其中当所述信号中没有所述指示符时,所述单元切换至所述第一模式。 11. A system, comprising: a wireless computing unit, having a first and a second communication mode, the first communication mode is a power saving mode, the unit only when receiving the second communication mode in a wireless signal said unit at a predefined time interval to switch to the second mode; and a network management system, which only in the presence of traffic data of the unit when sending traffic data with a wireless signal to the indicator words; wherein When the unit receives the signal including the indicator to, the unit initiating a wireless connection to the device to obtain the traffic data, and wherein when said indicator when said signal is not, the unit switches to the first mode.
12. 如权利要求11所述的系统,其特征在于,所述装置包括服务器、交换机、接入点、和接入端口中至少之一。 12. The system according to claim 11, characterized in that said means comprises at least one of the servers, switches, access points, and the access port.
13. 如权利要求11所述的系统,其特征在于,所述单元包括基于图像的扫描器、基于激光的扫描器、RFID读取器、PDA、蜂窝电话、和网络接口卡中的至少之一。 13. The system according to claim 11, characterized in that said unit comprises an image-based scanner, laser-based scanners, RFID readers, PDA, cellular telephone, and at least one network interface card .
14. 如权利要求11所述的系统,其特征在于,所述话务数据包括数据分组、VoIP分组、和管理分组中的至少之一。 14. The system according to claim 11, characterized in that said traffic data including at least one of the data packets, VoIP packets and management packets.
15. 如权利要求11所述的系统,其特征在于,所述预定义时间间隔约为3到5秒。 15. The system according to claim 11, characterized in that said predefined time interval of about 3-5 seconds.
16. 如权利要求11所述的系统,其特征在于,所述单元筛査射频信道的预定部分上的无线信号以寻找包括所述指示符的所述信号。 16. The system of claim 11, wherein said screening means a predetermined portion of a radio signal on a radio channel to find the signal comprising the indicator.
17. 如权利要求11所述的系统,其特征在于,所述单元从所述无线装置下载所述话务数据。 17. The system according to claim 11, characterized in that the said means traffic data downloaded from the wireless device.
18. 如权利要求11所述的系统,其特征在于,所述无线信号是信标和广播分组之一。 18. The system of claim 11, wherein said wireless signal is one of a beacon and a broadcast packet.
19. 如权利要求11所述的系统,其特征在于,所述指示符包括所述单元的MAC地址和由所述无线装置指派给所述单元的唯一性标识符中的至少之 19. The system according to claim 11, characterized in that the said indicator means comprises a MAC address assigned by the wireless device to the unit a unique identifier of at least
20. —种装置,包括处理器,其以一预定义时间间隔从第一通信模式切换至第二通信模式;以及通信装置,其仅在所述第二通信模式中时才接收无线信号, 其中所述处理器在所述信号包括话务数据指示符时发起对无线装置的无线连接以从所述无线装置获得话务数据,所述指示符是指示存在所述话务数据。 20. - kind of device, including a processor at a predefined time interval from the first communication mode is switched to the second communication mode; and a communication device that receives a radio signal when only the second communication mode, wherein The signal processor of the wireless device initiating a wireless connection, then to obtain traffic data from the wireless device, the indicator is indicative of the presence of traffic data including traffic data indicator.
21. 如权利要求20所述的装置,其特征在于,所述处理器利用所述连接来从所述装置下载所述话务数据。 21. The apparatus according to claim 20, wherein said processor utilizes said connection means to download said traffic data from the words.
22. 如权利要求20所述的装置,其特征在于,在所述信号中没有所述指示符时所述处理器切换到所述第一模式。 22. The apparatus according to claim 20, characterized in that said indicator when the processor is not switched to the first mode of the signal.
Description  translated from Chinese

用于无线设备中的功率节省的系统和方法 For wireless devices in a system and method for power saving

背景信息 Background Information

常规移动单元("MU")在上电时经由接入点("AP")建立对无线网络的连接并维持该连接直到其有意地被终止(例如,MU被断电)或无意地被终止(例如,连接不可用——在网络范围之外)。 Conventional mobile unit ("MU") on power-up to establish a connection to the wireless network via an access point ("AP") and maintains the connection until it is intentionally terminated (e.g., MU is de-energized) or unintentionally terminated (For example, the connection is not available - out of the network range). 在连接到该网络时,MU不断地监视并重新评估与AP的连接。 When connected to the network, MU continuously monitor and reassess the connection with the AP. 例如,MU可扫描其它网络、寻找要关联(即,漫游)的新接入点("AP")并执行与新AP的认证交换。 For example, MU can scan other networks, looking to be associated (ie, roaming) new access point ("AP") and performs switching with the new AP certification. 这些功能从MU所用的电池当中消耗了大量的功率。 These functions used batteries from MU which consumes a lot of power.

为了降低功耗,MU利用常规的功率节省模式。 To reduce power consumption, MU using conventional power saving mode. 然而在该模式下,MU不能发射或接收无线信号虽然保持对该网络的连接(即,与AP相关联)。 However, in this mode, MU can not transmit or receive radio signals, while maintaining the connection (i.e., associated with the AP) to the network. 因此, MU以每预定义的时间间隔(例如,1秒——DTIM间隔)从功率节省模式切换到唤醒模式以确定是否有任何要发送的/缓冲的话务(例如,检査DTIM)。 Therefore, MU per predefined time interval (for example, one second --DTIM interval) to switch from the power saving mode to the awake mode to determine if there are any to be sent / buffered traffic (for example, checking DTIM). 然而,以每个时间间隔在两种模式之间的切换导致MU即使在没有该MU的话务的情况下也退出功率节省模式。 However, switching to the time interval between every two even modes cause MU MU in the absence of the traffic also exit the power saving mode. 所以,MU低效地损耗电池但并未进行通信。 Therefore, MU inefficient and loss of battery but not communicate.

发明概要 SUMMARY OF THE INVENTION

描述了一种用于无线设备中的功率节省的系统和方法。 It describes a system and method for a wireless device for power saving. 该方法包括由无线计算单元以预定义时间间隔从第一通信模式切换至第二通信模式。 The method comprises a wireless computing unit to a predefined time interval from the first communication mode is switched to the second communication mode. 该单元仅在 The unit only

第二通信模式中时接收无线信号,并且第一通信模式是功率节省模式。 Receiving a second communication mode when a radio signal, and the first communication mode is a power saving mode. 该单元接收无线信号,并在该信号包括指示存在话务数据的话务数据指示符时发起对一无线装置的无线连接以从该无线装置获得话务数据。 The unit receives a radio signal, and the signal includes an indication of the presence of traffic data to the initiating data traffic of a wireless device if the wireless connection to obtain traffic data from the wireless device when the indicator. 在该信号中没有该指示符时,该单元切换到第一通信模式。 The indicator in the absence of the signal, the unit switches to the first communication mode.

附图简述 BRIEF DESCRIPTION

图1是根据本发明的系统的示例性实施例;以及图2是根据本发明的方法的示例性实施例。 Figure 1 is an exemplary embodiment of the system according to the invention; and 2 is an exemplary embodiment of FIG method according to the present invention. 具体描述 Detailed description

本发明可参照以下描述和附图来进一步理解。 The present invention may be further understood with reference to the following description and drawings. 本发明描述了一种用于在无线设备中节省功率的系统和方法。 The present invention describes a power savings in a wireless device in the system and methods. 虽然本发明将参照无线设备的功率源的节省来描述,但本领域的技术人员将理解该系统和方法也可用于节省诸如处理时间/功率、所用的存储器等设备的其它资源。 Although the present invention with reference to a power source saving wireless device described, those skilled in the art will appreciate that the system and method may also be used, such as save processing time / power, other resources such as a memory device used.

图1示出了根据本发明的系统10的示例性实施例。 Figure 1 illustrates an exemplary embodiment of the system 10 according to the invention. 系统io可包括耦合至 Io system may include coupling to

通信网络20的网络管理装置(例如,交换机15)和接入点/端口( "ap") 25、 26和27。 Communication network network management device 20 (for example, switches, 15) and the access point / port ("ap") 25, 26 and 27. 本领域的技术人员将理解网络管理装置可以是管理到与其耦合的一个或多个设备的网络话务流的任何设备(例如,集线器、路由器等)。 Those skilled in the art will appreciate that the network management device can be any device (such as hubs, routers, etc.) to manage its network traffic flow coupled to one or more devices. 交换机15可以耦合到服务器(未示出)以存储和处理数据。 Switch 15 can be coupled to a server (not shown) to store and process data. 网络20可以是包括互连的网络、工作站、服务器、数据库等的lan。 Lan network 20 may comprise interconnected network, workstations, servers, databases and the like. 该互连可以通过专用连接(例如,私用lan)和/或经由公共网络(例如,因特网)。 The interconnection can and / or via a public network (eg, the Internet) via a dedicated connection (for example, private lan).

ap25可以是将数据分组从有线通信协议(例如,tcp/ip)转换成无线通信协议(例如,IEEE 802.11、 802.16等)或反之的任何设备。 ap25 may be a data packet from a wired communication protocol (e.g., tcp / ip) is converted into a wireless communication protocol (e.g., IEEE 802.11, 802.16, etc.) or any of the device and vice versa. 例如,数据分组可以经由网络20和交换机15被路由至ap 25。 For example, the data packet via the network 20 and can be routed to the switches 15 ap 25. 当ap 25接收到该数据分组时, 该数据分组可被转换以便在射频("rf")信道上传输。 When ap 25 receives the data packet, the data packet may be converted to a radio frequency ("rf") transmission channel. 本领域的技术人员将理解ap 25在通过rf信道接收到要送往交换机15和/或网络20的数据分组时可执行类似过程。 Those skilled in the art will appreciate ap 25 perform similar process to be sent upon receiving 15 and / or packet switch network 20 via rf channel. 此外,ap 25可以直接连接到网络20或服务器而无需作为中间设备的交换机15。 Furthermore, ap 25 can be connected directly to the network or the server 20 without the switch 15 as an intermediate device.

系统10还包括能够与ap 25-27进行无线通信的无线计算单元(例如,移动单元("mu" ) 30)和/或无线通信网络(例如,wlan35)中的其它mu。 The system 10 further includes ap 25-27 can wirelessly communicate with wireless computing unit (e.g., a mobile unit ("mu") 30) and / or wireless communication network (e.g., wlan35) other mu. 系统10可包括任意数目和/或类型的ap和mu。 The system 10 may include any number and / or type of ap and mu. 本领域的技术人员将理解mu 30可以是用于进行无线通信的任何设备,包括但并不限于基于图像或激光的条形码扫描器、rfid读取器或标签、蜂窝电话、pda、网络接口卡、膝上型设备、手持计算机等。 Those skilled in the art will appreciate that mu 30 may be used for any wireless communication devices, including but not limited to a laser-based bar code scanner or the image, rfid reader or tag, a cellular phone, pda, network interface cards, laptop devices, handheld computers.

根据本发明,mu30利用功率节省模式和唤醒模式,但直到其检测到存在要发送的/缓冲的话务时才发起对wlan35的连接。 According to the present invention, mu30 use power-saving mode and wake-up mode, but only until it detects the presence to be sent / buffered traffic initiates wlan35 connection. 本领域的技术人员将理解, 该话务可以是一个或多个数据、VoIP和/或管理分组。 Those skilled in the art will appreciate that the traffic can be one or more data, VoIP and / or management packets. 例如,该话务可以是来自网络20或WLAN35内要送往MU 30的VoIP呼叫。 For example, the network traffic can be from 20 or WLAN35 to be sent within 30 MU VoIP calls. 一旦上电或在功率节省模式中,MU30可以每预定义的时间间隔(例如,约3-5秒)切换到唤醒模式。 Once power or in power saving mode, MU30 can each predefined time interval (for example, about 3-5 seconds) to switch to the awake mode. 在唤醒模式下,MU30监听其RF范围内的无线信号以确定是否有其话务。 In the wake mode, MU30 monitor its RF range wireless signals to determine whether there is its traffic.

在一个实施例中,MU 30针对RF信道的预定部分监听包含指示存在要送往该MU 30的话务的话务数据的预定信号。 Predetermined signal in one embodiment, MU 30 listens for a predetermined portion of RF channel contains information indicating the presence of traffic to be sent to the MU 30 of the traffic data. 该话务数据可以是例如MU 30的标识符(例如,MAC地址)。 The traffic data may be, for example, MU 30 identifier (e.g., MAC address). 在另一实施例中,该标识符可以被插入在WLAN 35中AP所发送的信标中的字段中(例如,用TLV编码来创建)。 In another embodiment, the identifier can be inserted in a beacon WLAN 35 AP sent in the field (for example, using TLV coding to create). 在又一实施例中,该标识符可被包括于在WLAN35上定期发送的广播分组中。 In yet another embodiment, the identifier may be included in a broadcast packet on WLAN35 regularly sent. 在这些实施例的任何一个中,该标识符的包括可由服务器和/或交换机15来控制。 In any of these embodiments, the identifiers include by the server and / or the switch 15 is controlled. 例如,服务器可缓冲要送往MU的数据并通知AP发送广播分组。 For example, the server may buffer data to be sent to the MU and notifies the AP sends broadcast packets. 本发明将参照标识符被包括在信标中的字段中来描述,但本领域的技术人员将理解可利用上述实施例的任意一个。 The present invention will now be included in the beacon identifier field described in reference to those skilled in the art will appreciate that any one of the above-described embodiments.

当有要送往MU 30的话务时,AP 25-27中的一个或多个可将MU 30的标识符包括在从其发送的信标中(或包括在广播分组中)。 When there is traffic to be sent to the MU 30 when, AP 25-27 MU may be one or more identifiers 30 included in the beacon transmitted from (or included in a broadcast packet). 即,在一个实施例中, 仅MU 30所关联的最后一个AP在其信标中包括该标识符。 That is, in one embodiment, only the MU 30 associated with the last AP include the identifier in its beacon. 在另一实施例中, MU30的位置可被确定,并且在该位置的预定范围内的所有AP都可在它们的信标中包括该标识符。 In another embodiment, MU30 location can be determined, and all AP within a predetermined range of the location of the identifier can include in their beacon. 在又一实施例中,WLAN35中的每个AP都可在其信标中包括该标识符。 In yet another embodiment, WLAN35 each AP can include the identifier in its beacon. 本领域的技术人员将理解, 一旦有要送往该MU的话务,该标识符就可被包括在预定数目(例如,两个或多个)的后续信标中。 Those skilled in the art will appreciate that if there is to be sent to the MU's traffic, the identifier can be included in a predetermined number (e.g., two or more) of the subsequent beacon. 这将防止MU 30错过具有该标识符的信标并因此错过该话务。 This will prevent the MU 30 missed having a beacon of the identifier and therefore miss the traffic.

当MU 30切换到唤醒模式时,确定它所侦听到的任何信标中是否存在该标识符。 MU 30 when switching to the awake mode, determines whether there is the identifier of the listener to any beacon. MU30在一预定义持续时间(例如,约200-300毫秒)内保持在唤醒模式以尝试检测该标识符。 MU30 in a predefined duration (for example, about 200-300 milliseconds) held in wake-up mode in an attempt to detect the identifier.

当检测到该标识符时,MU 30通过例如执行常规漫游来发起与WLAN 35 的连接。 When detecting the identifier, MU 30 by, for example to perform regular roaming to initiate a connection with the WLAN 35. 即,MU 30可扫描在其RF范围内的各AP、选择一AP、发起与该AP的关联和认证并建立对WLAN 35的连接。 That is, MU 30 can be scanned in its RF range of each AP, select one AP, the AP initiates association and certification and the establishment of WLAN 35 connection. 当连接上时,MU30请求并接收来自服务器的该话务。 When connected, MU30 request and receive the traffic from the server. 本领域的技术人员将理解,该服务器可与交换机和/ 或AP相结合。 Those skilled in the art will appreciate that the server can be combined with switches and / or AP. 在接收到该话务之后,MU30可放弃该连接并恢复到唤醒模式或功率节省模式。 After receiving the traffic, MU30 may waive the connection and return to the awake mode or power save mode. 图2示出了根据本发明的方法200的示例性实施例。 Figure 2 illustrates an exemplary embodiment 200 of the method according to the invention. 在步骤205, MU30 通过例如上电和/或从充电设备中移除而切换到唤醒模式。 In step 205, MU30 for example, by the electrical and / or removed from the charging device is switched to the awake mode. 虽然方法200可在MU 30被上电时发起,但本领域的技术人员将理解方法200也可在上电之后实现。 Although the method 200 may initiate when the power in the MU 30, those skilled in the art will appreciate that method 200 may be in power after implementation. 例如,MU30可以处于功率节省模式并且以预定义的时间间隔切换到唤醒模式。 For example, MU30 may be in a power saving mode and a predefined time interval to switch to the awake mode. 在任一方式中,此时MU30可以被供电但与WLAN35断开(例如,未与任何AP相关联)。 In either mode, but this time with WLAN35 MU30 can be turned off (for example, not associated with any AP) supply.

在步骤210, MU30分析其RF范围中的信号(例如,信标)以确定其中是否包括有该标识符。 In step 210, MU30 analyze the RF signal range (for example, a beacon) to determine if any of them include the identifier. MU 30可利用其收发机以接收和解调其RF范围内的信标。 MU 30 can use their transponder beacon within the scope of its RF reception and demodulation. 对于接收到的每个信标,MU30可确定各字段中的任意一个是否包括有该标识符。 For each beacon received, MU30 each field can be determined whether any one comprising the identifier. 在一替换性实施例中,该标识符可以是在先前通信会话期间由AP或服务器指派给MU 30的唯一值。 In an alternative embodiment, the identifier may be a unique value MU 30 during a communication session previously assigned by the AP or the server. 该先前通信会话也可包括例如加密密钥等安全性数据的交换。 The previous communication session may also include, for example the exchange of encryption keys and other security data.

在步骤215, MU 30确定是否检测到该标识符。 At step 215, MU 30 determines whether the identifier is detected. 例如,当MU30在信标之一中标识出其MAC地址时,其确定已检测到该标识符。 For example, when the MU30 identifies its MAC address in one of the beacon, it determines the identifier has been detected. 如本领域的技术人员将理解的,MU30可接收多个信标且每一个都可包括该标识符。 As those skilled in the art will appreciate, MU30 can receive a plurality of beacons and each can include the identifier. B卩,交换机15和/或服务器可指令AP 25-27在其信标中包括该标识符以使得无论MU 30 位于何处,它都能被通知到有其话务。 B Jie, switches 15 and / or server may instruct AP 25-27 include the identifier in its beacon so regardless MU 30 is located, it can be notified to have their traffic. 然而, 一旦MU 30检测到该标识符, 它可以不再接收其它信标。 However, once the MU 30 detects the identifier, it can not receive other beacons.

在步骤220,由于没有检测到该标识符,MU30切换到功率节省模式。 In step 220, since the identifier is not detected, MU30 switched to the power saving mode. 艮P, MU30可保持在唤醒模式一预定持续时间。 Gen P, MU30 wake pattern can be maintained at a predetermined duration. 当该持续时间到期并且还未检测到该标识符时,MU30可恢复到功率节省模式。 When the duration expires and has not detected the identifier, MU30 restored to power saving mode. 当处于功率节省模式时,MU30 可不尝试建立对AP 25的连接和/或执行从WLAN35断开的常规MU原本将执行的任何联网功能(例如,信号强度读取、认证)。 When in power save mode, MU30 do not try to establish any conventional MU networking connection AP 25 and / or execution disconnected from WLAN35 would otherwise be performed (for example, signal strength reading certification). MU30在切换到唤醒模式并重新分析无线信号以检测该标识符之前在功率节省模式中保持预定时间间隔(如步骤225所示)。 Maintained for a predetermined time before switching to the awake mode MU30 and re-analyze wireless signals to detect the identifier in the power saving mode interval (as shown in step 225).

在步骤230, MU30已检测到该标识符并建立与WLAN35的连接。 In step 230, MU30 has detected the identifier and establish a connection with WLAN35 of. 该连接可以用常规方式建立。 The connection can be established in a conventional manner. BP, MU 30可以扫描来自其RF范围内的各AP的信号并确定每个相应信号的信号强度。 BP, MU 30 can scan the signal from each AP within its range of RF and determine signal strength of each of the respective signals. 基于该信号强度(或一些其它状况,即负荷),MU30可执行与AP (例如,AP25)的关联和认证握手。 Based on the signal strength (or some other condition, i.e., the load), MU30 may perform AP (e.g., AP25) association and authentication handshake. MU 30随后通过与AP 25的连接接收该话务,如步骤235所示。 MU 30 is then connected to the AP 25 received through the traffic, as shown in step 235.

本发明提供了针对节省无线计算单元(例如,MU)所用的功率的某些优点。 The present invention provides certain advantages for power saving wireless computing unit (for example, MU) used. 例如,通过以预定义间隔切换到唤醒模式,MU30花费在唤醒模式的时间被縮短,这降低了MU 30的功耗。 For example, through a predefined interval switching to the awake mode, MU30 is shortened in time spent awake mode, which reduces the power consumption of 30 MU. 通过允许MU 30在与WLAN 35断开时向其通知有其话务而进一步降低功耗。 By allowing MU 30 when disconnected from the WLAN 35 has its traffic to its notice and further reduce power consumption. 因此,MU 30无需在MU 30被上电的整个时间内对其收发机供电。 Therefore, MU 30 MU 30 without being in power for the entire time of its transceiver power. 例如,用户可使用MU 30扫描条形码并本地地存储该扫描数据。 For example, users can use the MU 30 scans the bar code and the scan data stored locally. 然后,当MU30要接收或进行VoIP呼叫时,它将为此对其收发机供电。 Then, when the MU30 or VoIP calls to be received, it will do this on its transceiver power. 在该呼叫之后,扫描数据可在WLAN35上被发送。 After the call, the scan data can be sent on WLAN35.

功率的降低可延长常规电池寿命和/或允许制造商制造更小的电池。 Reducing the power of conventional extended battery life and / or to allow manufacturers to produce more smaller batteries. 更小 Smaller

的电池将减小MU 30的大小和重量,对于移动计算设备而言这是非常重要的特性。 MU 30 batteries will reduce the size and weight, for mobile computing devices is concerned this is a very important feature.

对于本领域的技术人员将显而易见的是,可在本发明的结构和方法中作出各种修改和变形而不会背离本发明的精神实质和范围。 For those skilled in the art it will be apparent that various modifications and variations can be made in the structure and method of the present invention without departing from the spirit and scope of the invention. 因此,本发明旨在涵盖本发明的所有修改和变形,只要它们落在所附权利要求及其等效方案的范围之内。 Accordingly, the present invention is intended to cover all modifications of the present invention and variations, provided they come within the scope of the appended claims and their equivalents of the.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN102804864A *8 Jun 201028 Nov 2012汤姆森特许公司A power saving method at an access point
CN102804864B *8 Jun 20106 Jan 2016汤姆森特许公司接入点的节能方法
CN103797864A *30 Aug 201214 May 2014北欧半导体公司Wireless data communication between master device and slave device
CN103999518A *6 Dec 201220 Aug 2014高通股份有限公司System and method for access point power save
US90889498 Jun 201021 Jul 2015Thomson LicensingPower saving method at an access point
Classifications
International ClassificationH04W52/02
Cooperative ClassificationH04W52/0229, H04W52/0225, Y02B60/50
European ClassificationH04W52/02T4
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