CN102792754A

CN102792754A - Method and apparatus for enabling enhanced CQI update frequency

Info

Publication number: CN102792754A
Application number: CN2010800652857A
Authority: CN
Inventors: R·郑; M·范; J·郭
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2010-03-11
Filing date: 2010-10-13
Publication date: 2012-11-21
Anticipated expiration: 2030-10-13
Also published as: CN102792754B

Abstract

A method and apparatus for facilitating downlink data transmission in a TD-SCDMA system is provided. The method may comprise receiving, from a Node B, a channel quality indicator (CQI) request, wherein the CQI request is not associated with a payload transmission.

Description

Be used to realize the method and apparatus of enhancement mode CQI renewal frequency

The cross reference of related application

The benefit of priority that present patent application requires is that submit on March 11st, 2010, be entitled as the international patent application No.PCT/CN2010/070981 of " METHOD AND APPARATUS FOR ENABLING ENHANCED CQI UPDATE FREQUENCY " is incorporated the complete content of above-mentioned application into this paper clearly with way of reference.

Technical field

Put it briefly; Aspect of the present invention relates to wireless communication system; Specifically, aspect of the present invention relates to the wireless communication system that is used for realizing in the system such as TD SDMA (TD-SCDMA) high-speed downlink packet inserts (HSDPA) system enhanced channel quality indicator (CQI) renewal frequency.

Background technology

Cordless communication network is disposed so that various communication services to be provided, such as phone, video, data, message transmission, broadcasting or the like widely.This network (it is multi-access network normally) can be supported a plurality of user's communications through sharing available network resources.An example of this network is universal terrestrial access network (UTRAN).UTRAN is the Radio Access Network (RAN) that is defined as the part of UMTS (UMTS) (a kind of third generation (3G) mobile phone technology that third generation partner program (3GPP) is supported).As the technological successor's of global system for mobile communications (GSM) the various air-interface standards of the current support of UMTS, such as WCDMA (W-CDMA), TD-CDMA Time Division-Code Division Multiple Access (TD-CDMA) and TD SDMA (TD-SCDMA).For example, TD-SCDMA is carrying out as the bottom air interface in the UTRAN framework in China, wherein with the existing GSM infrastructure of this UTRAN framework as core net.UMTS is support of enhanced 3G data communication protocol (such as high speed downlink packet access (HSDPA)) also, and wherein this agreement provides higher data transmission bauds and capacity to the UMTS network that is associated.

Along with the demand sustainable growth that mobile broadband is inserted, research and development continues to improve the UMTS technology, be not only in order to satisfy the demand of the growth that mobile broadband is inserted, and in order to improve and strengthen the experience of user to mobile communication.

Summary of the invention

For the basic comprehension to one or more aspects is provided, below provided the simplified summary of these aspects.This general introduction is not the extensive overview to all contemplated aspects, and neither will confirm the key or the important composition element of all aspects, neither describe the protection range of any or all aspect.Its purpose only is to appear with the form of simplifying some notions of one or more aspects, with this preamble as after a while detailed description.

According to one or more aspects of the present invention and corresponding disclosure, be combined in and realize in the TD-SCDMAHSDPA system that enhancement mode CQI renewal frequency described various aspects.This method can comprise that receiving CQI from Node B asks, and wherein, said CQI request is not associated with the payload transmission.

Another aspect relates to a kind of device.This device can comprise: be used for receiving from Node B the unit of CQI request, wherein, said CQI request is not associated with the payload transmission; Be used to generate the unit of CQI response, wherein, the maximum data rate that this CQI response indication UE can receive; And the unit that is used for sending this CQI response to node.

Another aspect relates to a kind of computer program that comprises computer-readable medium.This computer-readable medium can comprise the code that is used for receiving from Node B the CQI request, and wherein, said CQI request is not associated with the payload transmission.

Another aspect relates to a kind of device that is used for radio communication.Said device can comprise receiver, and this receiver is configured to receive the CQI request from Node B, and wherein, said CQI request is not associated with the payload transmission.Said device can also comprise at least one processor, and said at least one processor is configured to generate the CQI response, wherein, and the maximum data rate that this CQI response indication UE can receive.Said device can also comprise transmitter, and this transmitter configuration is sent this CQI response for the time instance place of the definition after this CQI request is received.

In order to realize aforementioned and relevant purpose, said one or more aspects comprise characteristic that hereinafter is fully described and that in claims, specifically note.Some illustrative characteristic that following description and accompanying drawing have at length been explained said one or more aspects.Yet these characteristics are only represented and can be used in the multiple mode of principle of various aspects a few with it, and this description is intended to comprise all these aspects and their equivalent.

Description of drawings

Fig. 1 is the conceptive block diagram that the example of communication system is shown.

Fig. 2 is the conceptive block diagram that the example of the frame structure in the communication system is shown.

Fig. 3 is the conceptive block diagram that is illustrated in the communication system with the example of UE nodes in communication B.

Fig. 4 illustrates according to the UE throughput CDF comparative result of a TD-HSDPA system aspect, under the situation of using and do not use enhancement mode CQI request HS-SCCH and the exemplary graphs of coboundary.

Fig. 5 is the conceptive functional block diagram that is performed with the exemplary frame of the functional characteristic of realizing one aspect of the present invention that illustrates.

Fig. 6 is the conceptive block diagram that communication in one aspect of the present invention is shown and is associated timing.

Fig. 7 is the block diagram of the communication on the conceptive a plurality of time slots that illustrate in one aspect of the present invention.

Fig. 8 according to an aspect, be configured to realize the block diagram of the example wireless communication device of enhancement mode CQI renewal frequency.

Fig. 9 is the block diagram that illustrates according to the framework of a Node B aspect, that be configured to realize enhancement mode CQI renewal frequency.

Embodiment

The embodiment of describing below in conjunction with accompanying drawing is intended to as the description to various configurations, rather than is intended to expression and only in these configurations, just can realizes the described notion of the application.For the thorough to each conception of species is provided, embodiment comprises specific details.Yet, it will be apparent to one skilled in the art that and can under the situation of not using these specific detail, realize these notions.In some cases, these notions are unclear for fear of making, and provide known structure and assembly with the block diagram form.

Referring now to Fig. 1, the figure shows the block diagram of the example of describing communication system 100.Running through each notion that the present invention provides can realize in diversified communication system, the network architecture and communication standard.For example, but non-the restriction, the UMTS system that consults and uses the TD-SCDMA standard provides the aspect of the present invention shown in Fig. 1.In this example, the UMTS system comprises that (for example, UTRAN), wherein this RAN 102 provides the various wireless services that comprise phone, video, data, message transmission, broadcasting and/or other service to (Radio Access Network) RAN 102.RAN 102 can be divided into some RNSs (RNS) (such as RNS 107), and wherein, each RNS is controlled by radio network controller (RNC) (such as RNC 106).For the sake of clarity, only show RNC 106 and RNS 107; Yet except RNC 106 and RNS 107, RAN 102 can also comprise the RNC and the RNS of any amount.RNC 106 still is responsible for distributing, reconfiguring and discharge the device of the Radio Resource among the RNS 107.Can use any suitable transmission network, RNC 106 is interconnected to other RNC (not shown) among the RAN 102 through the various types of interfaces such as direct physical connection, virtual network.

The geographic area that RNS 107 is covered can be divided into some sub-districts, and wherein wireless transceivers devices is served each sub-district.In UMTS uses; Wireless transceivers devices is commonly called Node B, but it can also be called base station (BS), base transceiver station (BTS), wireless base station, transceiver, transceiver function, Basic Service Set (BSS), extended service set (ESS), access point (AP) or certain other suitable term by those skilled in the art.For the sake of clarity, show two Node B 108; Yet RNS 107 can comprise the radio node B of any amount.Node B 108 provides the WAP to core net 104 for the mobile device of any amount.The example of mobile device comprises cell phone, smart phone, Session Initiation Protocol phone, laptop computer, notebook, net book, intelligence basis, PDA(Personal Digital Assistant), satellite radio equipment, global positioning system (GPS) equipment, multimedia equipment, video equipment, digital audio-frequency player (for example, MP3 player), camera, game console or any other similar function device.In UMTS uses; Mobile device is commonly called subscriber equipment (UE), but it can also be called mobile radio station (MS), subscriber station, mobile unit, subscriber unit, radio-cell, remote unit, mobile device, wireless device, Wireless Telecom Equipment, remote equipment, mobile subscriber station, access terminal (AT), portable terminal, wireless terminal, remote terminal, hand-held device, terminal, user agent, mobile client, client or certain other suitable term by those skilled in the art.For illustration purpose, show three UE 110 and communicate by letter with Node B 108.Down link (DL) (being also referred to as forward link) is meant the communication link from the Node B to UE, and up link (UL) (being also referred to as reverse link) is meant the communication link from UE to the Node B.

As shown in the figure, core net 104 comprises the GSM core net.Yet,, can in RAN or other suitable access network, realize running through each notion that the present invention provides, so that the access to the multiple core net that is different from the GSM network is provided to UE like what those skilled in the art will be appreciated that.

In this example, core net 104 uses mobile switching centre (MSC) 112 and gateway MSC (GMSC) 114 to come the support circuit-switched service.One or more RNC such as RNC 106 can be connected to MSC 112.MSC 112 is devices that call setup, calling route and UE mobility functions are controlled.MSC 112 also comprises Visitor Location Register (VLR) (not shown), and wherein this VLR comprises user related information at the duration that UE is in the overlay area of MSC 112.GMSC 114 provides gateway through MSC 112 to UE, so that place in circuit switching network 116.GMSC 114 comprises attaching position register (HLR) (not shown), and wherein this HLR comprises user data, such as, the data of the details of the reflection service that the specific user subscribed.HLR also is associated with authentication center (AuC), and wherein this AuC comprises the verify data specific to the user.When the calling that receives to particular UE, GMSC 114 inquiry HLR to be confirming the position of this UE, and give the specific MSC that serves this position with this call forward.

Core net 104 also uses Serving GPRS Support Node (SGSN) 118 and Gateway GPRS Support Node (GGSN) 120 to support packet data service.GPRS (it representes general packet radio service) be designed to according to compare higher speed for the available speed of standard GSM circuit switched data service packet data service be provided.GGSN 120 is provided to the connection of packet-based network 122 for RAN 102.Packet-based network 122 can be the Internet, private data network or certain other suitable packet-based network.The major function of GGSN 120 is to provide packet-based network to connect to UE 110.Through SGSN 118 transmission of data packets between GGSN 120 and UE 110, wherein, SGSN 118 mainly carries out and MSC 112 performed function identical functions in circuit commutative field in packet domain.

The UMTS air interface is spread spectrum direct sequence CDMA (DS-CDMA) system.Through multiply by the PRBS pseudo-random bit sequence that is called chip, spread spectrum DS-CDMA expands to user data on the wideer bandwidth.The TD-SCDMA standard is based on this direct sequence spread spectrum skill, in addition, and TD-SCDMA standard-required time division duplex (TDD), rather than employed FDD in a lot of FDD (FDD) pattern UMTS/W-CDMA system.For UL and the DL between Node B 108 and the UE 110, TDD uses identical carrier frequency, but TDD is divided into UL and DL in the different time-gap in this carrier wave.

Fig. 2 shows the frame structure 200 that is used for the TD-SCDMA carrier wave.As shown in the figure, the TD-SCDMA carrier wave has the frame 202 that length is 10ms.Frame 202 has two 5ms subframes 204, and each subframe 204 comprises seven time slots (TS0 is to TS6).The first time slot TS0 is allocated for downlink communication usually, and the second time slot TS1 is allocated for uplink communication usually.Remaining time slot (TS2 is to TS6) can be used for up link or down link, and this makes still to be that downlink side upwards can both have bigger flexibility during than the long data transmission time at uplink direction no matter.Down link pilot timeslot (DwPTS) 206, protection period (GP) 208 and uplink pilot time slot (UpPTS) 210 (being also referred to as uplink pilot channel (UpPCH)) are between TS0 and TS1.Each time slot (TS0-TS6) can allow multiplex data transmission on 16 encoding channels at most.Transfer of data on encoding channel comprises two data parts 212, and wherein, these two data were partly opened with intermediate code (midamble) in 214 minutes, and and then GP 216 thereafter.Intermediate code 214 can be used for the characteristic such as channel estimating, and GP 216 can be used to avoid disturb between burst.

Fig. 3 be in RAN 300 with the block diagram of UE 350 nodes in communication B 310, wherein RAN 300 can be the RAN 102 among Fig. 1, Node B 310 can be the Node B 108 among Fig. 1, UE 350 can be the UE 110 among Fig. 1.In downlink communication, emission processor 320 can receive data from data source 312, and can receive control signal by slave controller/processor 340.Emission processor 320 is that data and control signal and reference signal (for example, pilot signal) provide various signal processing functions.For example, emission processor 320 can provide the following to produce series of sign: the Cyclic Redundancy Check sign indicating number that is used for wrong detection; Help to realize the coding of forward error correction (FEC) and interweave; Mapping based on various modulation schemes (for example, binary phase shift keying (BPSK), QPSK (QPSK), M phase phase shift keying (M-PSK), M rank quadrature amplitude modulation (M-QAM) or the like) to signal constellation (in digital modulation); Use Orthogonal Variable Spreading Factor OVSF (OVSF) to carry out spread spectrum; And multiply each other with scrambler.Controller/processor 340 can use coding, modulation, spread spectrum and/or the scrambling scheme of confirming to be used to launch processor 320 from the channel estimating amount of channel processor 344.The reference signal that can be sent according to UE 350 or according to the feedback that comprises in the intermediate code 214 (Fig. 2) from UE 350 draws these channel estimating amounts.The symbol that emission processor 320 is generated offers frame emission processor 330, so that create frame structure.Frame emission processor 330 is created this frame structure through following operation: these symbols and the intermediate code 214 (Fig. 2) of coming self-controller/processor 340 are carried out multiplexing, thereby produce series of frames.Subsequently; These frames are offered transmitter 332, and this transmitter 332 provides various signal conditioning functions, and wherein these functions comprise: to these frames amplify, filtering; And these frames are modulated on the carrier wave, so that on wireless medium, carry out downlink transmission through smart antenna 334.Can use wave beam control bidirectional self-adaptive aerial array or other similar beam technique to realize smart antenna 334.

At UE 350 places, receiver 354 transmits through antenna 352 receiving downlinks, and handles this transmission to recover to be modulated to the information on the carrier wave.To offer received frame processor 360 by the information that receiver 354 recovers; This received frame processor 360 is resolved each frame; To channel processor 394 intermediate code 214 (Fig. 2) is provided, and data, control and reference signal is provided to receiving processor 370.Subsequently, the inverse operation of the performed processing of the emission processor among the receiving processor 370 XM B 310 320.More specifically, receiving processor 370 carries out descrambling and despreading to these symbols, and confirms the most probable signal constellation point that Node B 310 is sent based on modulation scheme subsequently.The channel estimating amount that these soft-decisions can be calculated based on channel processor 394.Subsequently, these soft-decisions are decoded and deinterleaving, with restore data, control and reference signal.Subsequently, the CRC sign indicating number is carried out verification to determine whether that these frames have been carried out successfully decoding.Subsequently, the entrained data of frame that success is decoded offer data sink 372, and this data sink 372 is illustrated in the application and/or the various user interface (for example, display) of operation among the UE 350.The entrained control signal of frame that success is decoded offers controller/processor 390.When receiver processor 370 was not successfully decoded to frame, controller/processor 390 can also use affirmation (ACK) and/or NACK (NACK) agreement to support the repeat requests to these frames.

In up link, will be provided for emission processor 380 with the control signal of coming self-controller/processor 390 from the data of data source 378.Data source 378 can be illustrated in the application and the various user interface (for example, keyboard) of operation among the UE 350.Be similar to the function that the downlink transmission that combines Node B 310 to be carried out is described; Emission processor 380 provides various signal processing functions to generate series of sign, and wherein these signal processing functions comprise: the CRC sign indicating number, help to realize the coding of FEC and interweave; Be mapped to signal constellation point; Use OVSF to carry out spread spectrum; And scrambling.Can use the channel estimating amount to select suitable coding, modulation, spread spectrum and/or scrambling scheme; Wherein, this channel estimating amount is that the feedback that comprises in the reference signal of being sent according to Node B 310 by channel processor 394 or the intermediate code of being sent according to Node B 310 draws.The symbol that emission processor 380 is produced offers frame emission processor 382, so that create frame structure.Frame emission processor 382 is created this frame structure through following operation: these symbols and the intermediate code 214 (Fig. 2) of coming self-controller/processor 390 are carried out multiplexing, thereby produce series of frames.Subsequently, these frames are offered transmitter 356, this transmitter 356 provides various signal conditioning functions; Wherein, These functions comprise: to these frames amplify, filtering, and these frames are modulated on the carrier wave, so that on wireless medium, carry out ul transmissions through antenna 352.

To be similar to the described mode of receiver function that combines UE 350 places, 310 places handle ul transmissions in Node B.Receiver 335 transmits through antenna 334 receiving uplinks, and handles this transmission to recover to be modulated to the information on the carrier wave.To offer received frame processor 336 by the information that receiver 335 recovers; This received frame processor 336 is resolved each frame; To channel processor 344 intermediate code 214 (Fig. 2) is provided, and data, control and reference signal is provided to receiving processor 338.Receiving processor 338 is carried out the inverse operation of the performed processing of emission processor 380 among the UE 350.Can entrained data and the control signal of frame that success is decoded be offered data sink 339 and controller/processor respectively.If receiving processor is not successfully decoded to some frames, then controller/processor 340 can also use ACK and/or NACK agreement to support the repeat requests to these frames.

Controller/

processor

340 and 390 can be respectively applied for the operation of instructing Node B 310 and UE 350 places.For example, controller/

processor

340 and 390 can provide various functions, and these functions comprise timing, peripheral interface, voltage adjustment, power management and other controlled

function.Memory

342 and 392 computer-readable medium can be stored data and the software that is used for Node B 310 and UE 350 respectively.Scheduler/the processor 346 at Node B 310 places can be used for the Resources allocation to UE, and scheduling is to downlink transmission and/or the ul transmissions of these UE.

In one aspect, controller/

processor

340 and 390 can be realized enhancement mode CQI renewal frequency.Generally speaking, in the TD-SCDMA system, the physical layer procedure of high-speed downlink packet switched data transmission can comprise many aspects.In one aspect, as shown in Figure 6, have only active UE that CQI result can be provided.Like this, owing to lack sufficient channel information at node B scheduling device place, the aspect of CQI transmission may obtain lower throughput of system and airlink utilance in down link.

In a kind of configuration, the device 350 that is used for radio communication comprises: be used for receiving from Node B the unit of CQI request, wherein, this CQI request is not associated with the payload transmission; Be used to generate the unit of CQI response; And the unit that is used for sending this CQI response to node.In one aspect, the unit that is used to receive can comprise receiver 354.In yet another aspect, the unit that is used to generate can comprise controller/processor 390.In yet another aspect, the unit that is used to send can comprise transmitter 356.In the another kind configuration, device 350 comprises and is used for after receiving the CQI request, sending the unit of CQI response at the time instance place of definition.In the another kind configuration, device 350 comprises the unit that is used for receiving from Node B the CQI request, and wherein, this Node B is not being served UE actively.In another kind configuration, device 350 comprises and is used to the unit that uses High-Speed Shared Control Channel (HS-SCCH) to receive.In another kind configuration, device 350 comprises and is used to the unit that uses HS-SICH to send.In one aspect, said units can be to be configured to carry out the processor 360,380 and/or 390 by the cited function of said units.In yet another aspect, said units can be module or any device that is configured to carry out the cited function of said units.

In the CQI renewal process, Node B can also be used HS-SCCH, along distributing the HS-SCCH that is associated to send one or more " CQI-requests " with predetermined open loop power with given scheduler.Aspect such, CQI-upgrades (for example, blank), and HS-SCCH can be similar with the HS-SCCH of routine, except the payload ID among the blank HS-SCCH can be set to zero.This payload ID is set to zero and can accomplishes through the change in the TD-SCDMA third generation standard.Like this, the packet that does not have service being upgraded HS-SCCH with CQI-is associated.In one aspect, the open loop power that can transmitting power at the Node B place is set to be scheduled to.

In operation, receiving after CQI-upgrades HS-SCCH, UE can feed back CQI during time instance, and wherein, this time instance is to upgrade HS-SCCH at CQI to carry (for example, according to Fig. 6 timeline) confirmed under the situation that scheduling distributes.In further operation, utilizing CQI-to upgrade CQI feedback that HS-SCCH carries out by UE can be the maximum data rate (suppose to identical power and the sign indicating number/time dimension of given HS-SCCH channel use) that this UE can reliable reception.In one aspect, CQI-upgrades HS-SCCH if UE can not correctly decode, and then can not receive any feedback in response to this CQI-upgrades HS-SCCH.

For example and also unrestricted, downlink system emulation has been described, this emulation has been assessed CQI-and has been upgraded the influence of HS-SCCH to the data throughput.The contrast of using with the TD-HSDPA downlink throughput that does not use CQI-renewal HS-SCCH has been shown in the table 1.Table 1 has been described three kinds of situation: do not use CQI-request HS-SCCH, use CQI-request HS-SCCH and desirable CQI feedback (supposing that the every 5ms of each UE provides a feedback CQI as the coboundary).Table 1 has also been described the throughput contrast that the situation of 1,4,8 and 16 UE is arranged to each sub-district.As shown in table 1, when there is a plurality of UE each sub-district,, observed performance gain (50-60%) to the situation of using CQI-request HS-SCCH than the situation of not using CQI-request HS-SCCH.

Table 1

In addition, exemplary UE throughput cumulative distribution function (CDF) has been described among Fig. 4, so that the benefit of using CQI request HS-SCCH to bring as the UE in the system 400 to be described.

Fig. 5 shows the whole bag of tricks according to various aspects of the present invention.Though these methods are shown and are described as a series of action or sequential steps in order to make interest of clarity; But should be appreciated that and understand be; The present invention does not receive the restriction of sequence of movement because some actions can by different order take place and/or with take place simultaneously with other action of describing shown in the application.For example, those skilled in the art should understand that and understand that a kind of method can alternatively be expressed as a series of state and incidents (for example in state diagram) of being mutually related.In addition, in order will to realize according to the method for the invention, be not the everything of depicting all be essential.In addition, it should also be understood that, disclosedly hereinafter can be stored on the goods, to help to the computer transmission and to transmit these methods with the method that runs through this specification.The term that uses among the application " goods " is intended to contain the computer program that can from any computer readable device, carrier or medium, visit.

Fig. 5 shows the functional block diagram 500 of exemplary frame according to an aspect of the present invention, that when carrying out radio communication, carry out.In frame 502, UE can receive blank CQI request.In one aspect, payload and/or payload ID are not followed in blank CQI request.In yet another aspect, CQI request be by not with Node B enliven communicate by letter UE received.In yet another aspect, can use HS-SCCH to receive the CQI request.In yet another aspect, the CQI request can comprise definition open loop power value and sign indicating number and time dimension value.In frame 504, UE can generate the CQI response.In frame 506, UE can send the CQI response that is generated.In one aspect, can after receiving the CQI request, send this CQI at the time instance place of definition responds.In yet another aspect, can use at a high speed shared information Control channel (HS-SICH) to send the CQI response.

Referring now to Fig. 6, this figure is the conceptive block diagram that shows the communication in the system 600 and be associated timing.As described in Fig. 6, show down link 602 time slots and up link 604 time slots.Generally speaking, insert in (TD-HSDPA) system 600 in the time division high speed downlink link packet, the physical layer procedure of high-speed downlink packet switched data transmission can comprise many aspects.In one aspect, after the specific UE of scheduling, Node B is sent the HS-SCCH to this UE in a frame 606.In one aspect; The time slot 608 of the definition quantity after HS-SCCH transmission 606 (for example; Five time slots) afterwards, Node B can be sent corresponding packet according to payload size, modulation format and the resource utilization (time/code space) of appointment among the HS-SCCH 606 in HS-PDSCH 610.In one aspect, the time slot 612 (for example, 9 time slots) of the definition quantity after accomplishing HS-PDSCH, UE can send HS-SICH to Node B in up link, and this HS-SICH is made up of with CQI information the affirmation 614 to specific cluster.Aspect this, suppose the packet that received is distributed identical sign indicating number, time and power resource, can carry out the piece size and the modulation format of reliable reception according to UE, the maximum data rate that can provide to Node B by CQI information that UE fed back.In one aspect, as described in Fig. 6, have only active UE that CQI result can be provided.Like this, owing to lack enough channel informations at node B scheduling device place, the aspect of CQI transmission possibly obtain lower throughput of system and airlink utilance in down link.

Referring now to Fig. 7, this figure has provided the block diagram of the communication on conceptive a plurality of time slots that system 700 is shown.System 700 can comprise a plurality of time slots 702.Generally speaking, can control through power and send the HS-SCCH channel, to guarantee enough mistakes in UE receiver place/wipe performance.In addition, Node B can use a time slot in a plurality of time slots 702 to communicate by letter actively.Aspect this, can service HS-SCCH 704 be sent to active UE.After this, in one aspect, Node B can send to each other UE with blank HS-SCCH 706 during available (sequence available) time slot continuously.Aspect this, blank HS-SCCH 706 transmission can not accomplished through payload ID.In addition, in described example, 10% of the blank HS-SCCH 706 supposition Ec/Ior under this situation.In one aspect, using CQI-to upgrade the CQI that HS-SCCH fed back by UE can be the maximum data rate (supposing to use identical power and sign indicating number/time dimension to given HS-SCCH channel) that UE can carry out reliable reception.

Referring now to Fig. 8, the figure shows the example of the UE 800 (for example, client device, Wireless Telecom Equipment (WCD) etc.) that can help to obtain resource allocation.UE 800 comprises receiver 802; This receiver 802 receives one or more signals from for example one or more reception antenna (not shown); The conventional action of execution to the received signal (such as, filtering, amplification, down-conversion etc.), and with adjusted signal digitalized so that obtain sampling.Receiver 802 can also comprise: oscillator, and it can provide carrier frequency so that carry out demodulation to the received signal; And demodulator, it can be by carrying out demodulation to the symbol that receives, and it is offered processor 806 to be used for channel estimating.In one aspect, UE 800 can also comprise auxilliary receiver 852, and can receive extra channel information.

Processor 806 can be: be exclusively used in the information processing device that received information of analysis receiver 802 and/or generation are used for the emission of one or more transmitters 820 (for the ease of explanation, only showing a transmitter); The processor of one or more assemblies of control UE 800; And/or the received information of analysis receiver 802 and/or receiver 852, generate the emission that is used for transmitter 820 information in case on one or more transmitting antenna (not shown) the processor of one or more assemblies of emission and control UE 800.

UE 800 can also comprise memory 808; This memory 808 operatively is coupled to processor 806, and information and any other that can store data, the information about available channel, the data that are associated with signal of being analyzed and/or interference strength, the information about allocated channel, power, the speed etc. of the data that will launch, reception are used to estimate channel and the adequate information that communicates through this channel.Memory 708 can also store with agreement and/or the algorithm of estimating and/or utilize channel-associated (for example, based on performance, based on capacity, or the like).

Should be appreciated that the described data storage device of the application (for example, memory 808) both can be that volatile memory also can be a nonvolatile memory, perhaps can comprise volatile memory and nonvolatile memory the two.For example and non-limitingly, nonvolatile memory can comprise: read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically-erasable ROM (EEROM) (EEPROM) or flash memory.Volatile memory can comprise: random-access memory (ram), it is as external buffer memory.For example and non-limitingly; RAM can have multiple available form, for example: synchronous random access memory (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double-speed SDRAM (DDR SDRAM), enhancement mode SDRAM (ESDRAM), Synchlink DRAM (SLDRAM) and direct-reading Rambus RAM (DRRAM).The memory 808 of system and method for the present invention is intended to comprise rather than only limits to the memory of these and any other suitable type.

UE 800 can also comprise CQI update module 810, and this update module 810 can be used for helping the CQI of UE 800 to handle.In one aspect, CQI update module 810 can comprise CQI respond module 812.In one aspect, CQI respond module 812 can be used for providing CQI feedback, this CQI feedback indication UE can carry out reliable reception maximum data rate (suppose to given HS-SCCH channel use identical power and/sign indicating number/time dimension).In one aspect, CQI-upgrades HS-SCCH if UE fails correctly to decode, and then can not upgrade HS-SCCH in response to this CQI-and send any feedback.Having described this CQI among Fig. 5 handles.

In addition, in one aspect, processor 806 can provide: be used for receiving from serving node B the unit of CQI request, wherein, this CQI request is not associated with the payload transmission; Be used to generate the unit of CQI response, wherein, the maximum data rate that this CQI response indication UE can receive; And the unit that is used for sending the CQI response to serving node B.

In addition, UE 800 can comprise user interface 840.User interface 840 can comprise: input mechanism 842 is used to be generated to the input of UE 800; And output mechanism 842, be used to generate information by user's use of UE800.For example, input mechanism 842 can comprise like mechanism such as button or keyboard, mouse, touch screen displays, microphones.In addition, for example, output mechanism 844 can comprise display, audio tweeter, tactile feedback mechanism, individual territory net (PAN) transceiver etc.Aspect shown, output mechanism 844 can comprise: display is used for image or video format rendering content; Perhaps audio tweeter is used for the audio format rendering content.

With reference to Fig. 9, example system 900 comprises Node B 902, and this Node B 902 has: receiver 910 is used for receiving signal through a plurality of reception antennas 906 from one or more subscriber equipmenies 800; And transmitter 920, be used for launching to one or more subscriber equipmenies 900 through a plurality of transmitting antennas 908.Receiver 910 can be from reception antenna 906 reception information.Can analyze symbol by processor 912, this processor 912 is similar to above-described processor, and it is coupled to the memory 914 that stores about the information of data processing.Processor 912 also is coupled to CQI update module 916, and the latter helps to communicate with one or more corresponding user equipment 800, so that obtain CQI information from non-active user equipment 800.

In one aspect, CQI update module 916 can be used for realizing enhancement mode CQI renewal frequency at network 900.In addition, CQI update module 916 can comprise CQI request module 918.In one aspect, CQI request module 918 can be used for sending blank HS-SCCH to each other UE during the available time slot continuously.Aspect this, blank HS-SCCH transmission can not accomplished through payload ID.

The application has provided some aspects of communication system with reference to the TD-SCDMA system.What the person skilled in the art will easily understand is that the various aspects that run through the present invention's description can expand to other communication systems, the network architecture and communication standard.For instance, various aspects can expand to other UMTS systems, and for example W-CDMA, HSDPA, High Speed Uplink Packet insert (HSUPA), high-speed packet inserts and strengthens (HSPA+) and TD-CDMA.Various aspects can also expand to system and/or other systems that is fit to that uses Long Term Evolution (LTE) (in FDD, TDD or this two kinds of patterns), senior LTE (LTE-A) (in FDD, TDD or this two kinds of patterns), CDMA2000, Evolution-Data Optimized (EV-DO), Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, ultra broadband (UWB), bluetooth.Employed practical communication standard, the network architecture and/or communication standard will depend on certain applications and to overall design constraints condition that system applied.

Combined each apparatus and method to describe some processors.Can use electronic hardware, computer software or its combination in any to realize these processors.Be implemented as hardware or software as for these processors, will depend on application-specific and the overall design constraints condition that system is applied.For instance; Utilization is configured to carry out microprocessor, microcontroller, digital signal processor (DSP), field programmable gate array (FPGA), programmable logic device (PLD), state machine, gate logic, discrete hardware circuit and other processing components that is fit to of the various functions of in the whole disclosure, describing, and can be implemented in the processor that provides in the disclosure, any part of processor or the combination in any of processor.The software that utilization is carried out by microprocessor, microcontroller, DSP or other platform that is fit to can be implemented in the function of combination in any of any part or the processor of the processor that provides in the disclosure, processor.

No matter be called as software, firmware, middleware, microcode, hardware description language or other, software should broadly be interpreted as thread, process, function of presentation directives, instruction set, code, code segment, program code, program, subprogram, software module, application program, software application, software kit, routine, subroutine, object, executable program, execution etc.Software can be positioned on the computer-readable medium.Computer-readable medium can comprise; But be not limited to: (for example such as magnetic storage apparatus; Hard disk, floppy disk, tape) memory, CD (for example; Compact disk (CD), digital versatile disc (DVD)), smart card and flash memory device (for example, card, rod, key drive), random-access memory (ram), read-only memory (ROM), programming ROM (PROM), can wipe PROM (EPROM), electric erasable PROM (EEPROM), register or portable hard drive.Although memory is illustrated as with processor and separates in the various aspects that in the whole disclosure, appear, this memory also can be in the inside of processor (for example, buffer memory or register).

Can in computer program, realize computer-readable medium.For instance, computer program can comprise computer-readable medium in encapsulating material.It should be recognized by those skilled in the art that to be implemented in the described function that provides in whole the disclosing how best, depend on application-specific and the overall design constraints condition that whole system is applied.

Should be understood that the illustration that the concrete order of the step in the disclosed method or level are example process.Should be appreciated that concrete order or the level that to arrange the step in these methods again based on design preference.Appended claim to a method provides the key element of each step with exemplary order, and is not to be intended to be subject to given concrete order or level, only if clearly record is wherein arranged.

Above explanation is provided, and is in order to make any those skilled in the art can both realize the various aspects described in the literary composition.Various modification to these aspects all are conspicuous to those skilled in the art, and the General Principle that defines in the literary composition can be applied to others.Therefore; Claims are not to be intended to be limited to the aspect shown in the literary composition; But it is consistent with the language of claims on the whole; Wherein, be not to be intended to expression " and only " (only if having carried out such statement clearly) to mentioning of singulative element, but expression " one or more ".Only if state clearly, term " some " refers to one or more.Mention that the phrase of " at least one " in the bulleted list refers to the combination in any of these projects, comprises single member.For example, " at least one among a, b or the c " is intended to contain: a; B; C:a and b; A and c; B and c; And a, b and c.All 26S Proteasome Structure and Function equivalent form of values that run through the key element of various aspects described in the invention are incorporated among the application with way of reference clearly; And be intended to contained by claims, these 26S Proteasome Structure and Function equivalent form of values are known maybe will knowing to those skilled in the art.In addition, have no disclosure will contribute among the present invention, no matter whether such disclosure clearly is documented in claims to the public.In addition; Should not come any key element of construe requirement according to the regulation of the 6th section of the 112nd article of 35U.S.C.; Only if this key element clearly adopted " be used for ... the unit " phrase state; Perhaps in claim to a method, this key element be with " be used for ... step " phrase state.

Claims

1. method of wireless communication that is used for TD SDMA (TD-SCDMA) system comprises:

From Node B receive channel quality indicator (CQI) request, wherein, said CQI request is not associated with the payload transmission.

2. the method for claim 1 also comprises:

Generate the CQI response, wherein, the maximum data rate that said CQI response indication UE can receive; And

Send said CQI response to said Node B.

3. method as claimed in claim 2, wherein, said transmission also comprises:

The time instance place of the definition after said CQI request is received sends said CQI response.

4. the method for claim 1, wherein said reception also comprises:

The said Node B of never serving UE actively receives said CQI request.

5. the method for claim 1, wherein said CQI request comprises definition open loop power value and sign indicating number and time dimension value.

6. the method for claim 1, wherein said reception also comprises:

Use High-Speed Shared Control Channel (HS-SCCH) to receive.

7. method as claimed in claim 2, wherein, said transmission also comprises:

Use at a high speed shared information Control channel (HS-SICH) to send.

8. the method for claim 1, wherein said radio communication inserts in (TD-HSDPA) system in the time division high speed downlink link packet and carries out.

9. device that is used for the radio communication of TD-SCDMA system comprises:

Be used for receiving from Node B the unit of CQI request, wherein, said CQI request is not associated with the payload transmission;

Be used to generate the unit of CQI response, wherein, the maximum data rate that said CQI response indication UE can receive; And

Be used for sending the unit of said CQI response to said Node B.

10. device as claimed in claim 9, wherein, the said unit that is used to send also comprises:

The time instance place that is used for the definition after said CQI request is received sends the unit of said CQI response.

11. device as claimed in claim 9, wherein, the said unit that is used to receive also comprises:

The said Node B that is used for never serving actively UE receives the unit of said CQI request.

12. device as claimed in claim 9, wherein, said CQI request comprises definition open loop power value and sign indicating number and time dimension value.

13. device as claimed in claim 9, wherein, the said unit that is used to receive also comprises:

Be used to the unit that uses HS-SCCH to receive.

14. device as claimed in claim 9, wherein, the said unit that is used to send also comprises:

Be used to the unit that uses HS-SICH to send.

15. device as claimed in claim 9, wherein, said radio communication is carried out in the TD-HSDPA system.

16. a computer program comprises:

Computer-readable medium, it comprises the code that is used to carry out following operation:

Receive the CQI request from Node B, wherein, said CQI request is not associated with the payload transmission.

17. computer program as claimed in claim 16, wherein, said computer-readable medium also comprises the code that is used to carry out following operation:

Send said CQI response to said Node B.

18. computer program as claimed in claim 17, wherein, said computer-readable medium also comprises the code that is used to carry out following operation:

19. computer program as claimed in claim 16, wherein, said computer-readable medium also comprises the code that is used to carry out following operation:

The said Node B of never serving UE actively receives said CQI request.

20. computer program as claimed in claim 16, wherein, said CQI request comprises definition open loop power value and sign indicating number and time dimension value.

21. computer program as claimed in claim 16, wherein, said computer-readable medium also comprises the code that is used to carry out following operation:

Use HS-SCCH to receive.

22. computer program as claimed in claim 17, wherein, said computer-readable medium also comprises the code that is used to carry out following operation:

Use HS-SICH to send.

23. computer program as claimed in claim 16, wherein, said radio communication is carried out in the TD-HSDPA system.

24. a device that is used for the radio communication of TD-SCDMA system comprises:

Receiver, it is configured to receive the CQI request from Node B, and wherein, said CQI request is not associated with the payload transmission;

At least one processor; And

Be coupled to the memory of said at least one processor;

Wherein, said at least one processor is configured to:

Transmitter, it is configured to send said CQI response to said Node B.

25. device as claimed in claim 24, wherein, said transmitter also is configured to:

26. device as claimed in claim 24, wherein, said Node B is the Node B that does not have to serve actively said UE.

27. device as claimed in claim 24, wherein, said CQI request comprises definition open loop power value and sign indicating number and time dimension value.

28. device as claimed in claim 24, wherein, said receiver also is configured to:

Use HS-SCCH to receive.

29. device as claimed in claim 24, wherein, said transmitter also is configured to:

Use HS-SICH to send.

30. device as claimed in claim 24, wherein, said radio communication is carried out in the TD-HSDPA system.