CN105847214A - Localized and distributed allocation multiplexing and control - Google Patents

Abstract

The application relates to localized and distributed allocation multiplexing and control. Systems and methodologies are described that facilitate multiplexing of localized transmissions and distributed transmissions to reduce overhead transmission costs. According to various aspects, systems and/or methods are described that enable selection of an optimal transmission scheme in order to accommodate various traffic services, user abilities and channel properties.

Description

Localization and distributed allocation multiplexing and control

The application is the former Chinese invention patent application of invention entitled " localization and distributed allocation multiplexing and control " Divisional application.The Chinese Application No. 200780002123.7 of original application；The filing date of original application on January 12nd, 2007, Its international application no is PCT/US2007/060516.

CROSS-REFERENCE TO RELATED APPLICATIONS case

Subject application advocate on January 13rd, 2006 that file an application and entitled " localization and distributed allocation many Road multiplexing and control (LOCALIZED AND DISTRIBUTED ALLOCATION MULTIPLEXING AND CONTROL) " the interests of U.S. Provisional Application case the 60/759,149th sequence number.This its entirety Incorporated herein by reference.

Technical field

Following description generally relates to radio communication, and more particularly to supporting localization and distributed allocation The multiplexing scheme of flexibly multiplexing.

Background technology

Wireless communication system has become a kind of most people so as to the popular means communicated in worldwide.For Meeting the requirement of consumer and improve portability and convenience, radio communication device has become less and with better function. The increase of the disposal ability of the mobile device of such as cellular phone has caused the increasing of the demand to wireless network transmission system Add.

A kind of typical cordless communication network (for example with frequency division, time-division and code division technology) comprise one or one with Upper for providing the base station of overlay area and one or more can transmit in described overlay area and receive data Mobile (the most wireless) terminal.Multiple data stream can be transmitted for broadcast, multicast in a kind of typical base station simultaneously And/or unicast services, wherein data stream is can be by the crossfire of the data of mobile terminal individual reception.Covering of described base station Mobile terminal in cover region territory can receive carry by compound crossfire one, more than one or all data stream.Equally, Mobile terminal can transmit data to described base station or another mobile terminal.

For downlink transmission, can use localization (such as, become block) transmission or distributed (such as, Scattered) transmission.Localized transmission is useful, because it allows frequency selective scheduling.And on the other hand, point Cloth transmission utilizes frequency diversity and is useful for highspeed user.Need to optimize the transport-type that used and with Sample allows the number of the position of transmission during downlink to decline.

Summary of the invention

Presented below one or more aspects are summarized with provide to the basic understanding in terms of these.This is general State and not all contains the extensive overview ot of aspect, and be both not intended to represent key or the critical elements of all aspects, the most not The scope in terms of any or all is described in plan.Its unique purpose is to present one or more sides in schematic form Some concept in face is used as the presented below preamble being described in more detail.

According on the one hand, a kind of communication means includes: receive the information about access terminals capability；And according to described energy Localization and the distributed transmission of access terminal are multiplexed by power.

In another aspect, a kind of equipment includes: for storing the memory of information；Perform the processor of instruction；And Receive and about the information of access terminals capability and according to described ability, localization and the distributed transmission of access terminal are carried out The optimization component of multiplexing.

According on the other hand, on a kind of computer-readable media, storage has computer executable instructions, and described computer can Perform instruction and be used for performing following action: receive the information about access terminals capability；And according to described ability to described Localization and the distributed transmission of access terminal multiplex.

In another aspect, on a kind of processor, storage has computer executable instructions, described computer executable instructions For performing following action: receive the information about access terminals capability；And according to described ability to described access terminal Localization and distributed transmission multiplex.

In another aspect, a kind of system includes: receive the device of the information about access terminals capability；And according to institute State the device that localization and the distributed transmission of described access terminal are multiplexed by ability.

For addressing relevant purpose before completing, one or more than one aspect are included in and are hereinafter fully described and in power The feature particularly pointed out in profit claim.Be illustrated below and accompanying drawing illustrate one or more than one in terms of Some illustrative aspect.But, these aspects only represent several in the mode of the principle of various available each side and Described aspect is intended to comprise all these aspect and equivalence aspect thereof.

Accompanying drawing explanation

Fig. 1 is illustrating of the instance system of the optimum downlink transmission of implementation in a wireless communication environment.

Fig. 2 is illustrating of the domestic example transmission plan of wireless communication loop.

Fig. 3 is that another of the domestic example transmission plan of wireless communication loop illustrates.

Fig. 4 is that another of the domestic example approach of wireless communication loop illustrates.

Fig. 5 is the figure explanation of the case method promoting multiplexed downlink transmission in a wireless communication system Bright.

Fig. 6 is another figure of the case method promoting multiplexed downlink transmission in a wireless communication system Solve explanation.

Fig. 7 is another figure of the case method promoting multiplexed downlink transmission in a wireless communication system Solve explanation.

Fig. 8 is illustrating of the wireless communication system according to each side described here.

Fig. 9 is the block diagram of the system promoting multiplexed downlink transmission according to mobile device ability.

Figure 10 illustrates a kind of offer other sector communication according to one or more aspects presented herein System.

Figure 11 illustrates a kind of non-serving in the terminal according to one or more aspects presented herein and fans At district, offer processes the system of reverse link communication.

Figure 12 is can illustrating in conjunction with the wireless communications environment that various system and methods described herein use.

Detailed description of the invention

Referring now to the various embodiment of graphic description, the identical Ref. No. of middle use represents identical unit Part.In described below, illustrate that one or more are implemented by some details to provide for illustrative purposes The thorough understanding of example.It may be evident, however, that without using these details can implement these embodiments.? In other example, show that well-known structure and device are to promote to describe one or more in fact with block diagram form Execute example.

In subject application, term " assembly ", " module ", " system " used etc. refer to computer related entity, Can be hardware, firmware, hardware and the combination of software, software or executory software.Such as, assembly can be (but Be not limited to) process run on a processor, processor, object, executable file, execution thread, program and/ Or computer.For example, application program and the described calculating device both run on the computing device can be assembly. One or more assemblies can reside in process and/or perform in thread, and assembly can localize on a computer And/or be distributed between two or more computers.It addition, these assemblies can store various data knot from it Perform on the various computer-readable medias of structure.Described assembly can communicate via local and/or remote process, example As communicated according to the signal with one or more packets (such as, from one with local system, Another component interaction effect in distributed system, and/or via signal spans network (such as internet) with other be Unite the data of interactive assembly).

Additionally, describe various embodiment herein in connection with mobile device.Mobile device is also referred to as system, Ding Hudan Unit, subscriber station, mobile station, mobile device, remote station, remote terminal, access terminal, user terminal, terminal, Radio communication device, user agent, user's set or subscriber equipment (UE).Mobile device can be cellular phone, Wireless phone, SIP (SIP) phone, wireless local loop (WLL) platform, personal digital assistant (PDA), There is the handheld apparatus of wireless connection capability, calculate device or other is connected to the processing means of radio modem. Additionally, describe various embodiment herein in connection with base station.Base station is used for communicating with mobile device and also can finger Access point, other term of node B or a certain.

Additionally, various aspects or features described herein can be embodied as method, equipment or use standard program and/or design The goods of technology.Terms used herein " goods " it is intended to can be from any computer readable device, carrier or media The computer program of access.Such as, computer-readable media can including (but not limited to) magnetic storage device (such as Hard disc, floppy disc, magnetic stripe etc.), CD (such as Zip disk (CD), DVD (DVD) etc.), Smart card and flash memory device (such as EPROM, card, rod, key driving etc.).It addition, it is described herein Various storage media can represent one or more devices for storing information and/or other machine-readable medium. Term " machine-readable medium " can including but not limited to wireless channel and can store, containing receive and/or carry instructions and/ Or other media various of data.

Referring now to Fig. 1, figure illustrates according to the most various embodiments and carries out in a wireless communication environment The system 100 of excellent downlink transmission.Base station 102 is configured to communicate with one or more mobile devices 104. Optimization component 106 and (such as) that localization and distributed transmission are multiplexed by base station 102 by permission receive Receiving unit 108 about the information of base station ability forms.Optimization component 106 allows downlink transmission to realize frequency Rate diversity also alleviates the expense cost being associated with described transmission, as mentioned below via various schemes.It will be appreciated that it is right The multiplexing of localization and distributed transmission allows accommodate miscellaneous service service, user capability and further allow for one Or the user of more than one mobile device 104 utilizes the characteristic of channel.Additionally, such as, one or more move dress Put 106 and optimization component 106 at base station 102 can provide the information relevant to mobile device ability, to downlink The estimation of channel condition and subscriber data.Should also be clear that base station 102 can determine that the percentage of high speed and low speed user, Storage subscriber data and the information relevant to mobile device ability.This ability of base station 102 can further allow for optimizing Assembly 106 selects optimum multiplexing scheme according to ambient conditions.

Referring now to Fig. 2, figure illustrate a kind of via excellent to the multiplexing of localized transmission and distributed transmission Change the scheme of downlink transmission.At 202, display is divided into the frequency band of three fixing localized subbaiids.It will be appreciated that Previous examples is inherently illustrative and is not intended to restriction various embodiment described herein and/or method can be used to draw The number of the localized subbaiids separated.At 204, after carrying out the distributed allocation of subcarrier, display is previously discussed Three localized subbaiids.More particularly, complete if necessary in the middle of the subcarrier 206 in localized subbaiids 204 Distributed allocation.

With reference to Fig. 2, to all scheduled users, illustrated multiplexing scheme is by notifying that its subcarrier distributes And the part being already allocated to distributed allocation users in resource is signaled to scheduled user.Schemed at Fig. 2 Solving in the embodiment of explanation, the number of the distributed allocation no matter presented is how many, forms the localization of described frequency band The number of subband keeps constant.

Referring now to Fig. 3, figure illustrates multiplexing scheme 300.For example, in localized subbaiids Distributed resource allocation shows three localized subbaiids 302 before.In this embodiment, by reducing whole frequency In band localized subbaiids 304 number rather than along with distributed resource allocation increase reduce subcarrier 306 number Complete multiplexing.In this way, can alleviate relatively to the minimizing of localized subbaiids 304 relevant with up-link The expense cost of connection.It will be appreciated that along with distributed resource allocation increases, the number of localized subbaiids 304 reduces, and In localized subbaiids, the number of subcarrier 306 is preserved or is kept within a certain range.Should also be clear that along with because dividing The cloth distribution increase to the perforation of localized subbaiids 304, the width of the frequency band occupied by each localized subbaiids can increase Add.Therefore, the frequency selectivity of localized subbaiids 304 can reduce.

With further reference to Fig. 3, it is necessary to by about the interval between border and the distributed subcarriers of localized subbaiids 304 Information convey to all scheduled users.The control channel of each scheduled user signals concrete resource Distribution and the distribution of described resource should comprise rising of subband identification, the starting point of distributed user and interval or localized users Initial point and the number of tone.It will be appreciated that according to the type of the subband ID distributed, each scheduled with learning per family Described transmission will be localization, distributed, or localized transmission and both distributed transmission is multiplexed Signal.Therefore, scheduled user will have the knowledge about the explanation being associated with control channel.

With reference to Fig. 4, figure illustrates the domestic multiplexing scheme of wireless communication loop 400.Frequency band 402 is divided into Some localized subbaiids 404.In this embodiment, distributed point of perforated is specified for each localized subbaiids 406 Join the interval of 408.Therefore, in localized subbaiids 406, subcarrier can be bored a hole unevenly.It addition, one or More than one localized subbaiids 406 can be changed into distributed, thus reduces the subband 406 needing uplink quality to feed back Number.Additionally, as described above for shown in Fig. 3, the control channel of each scheduled user signals tool Body resource is distributed.It will be appreciated that distributed allocation is not be evenly distributed on localized subbaiids 406.Such as, Multiplexing scheme 400 can comprise the localized subbaiids being all be distributed, and localized subbaiids around is to pass through The perforation of distribution of resource formula is localized.Localized subbaiids 406 is made to keep although multiplexing scheme 400 provides Constant frequency span, but the number of subcarriers in localized subbaiids 406 can subtract due to the perforation to distributed allocation Few.

For the multiplexing scheme 300 and 400 illustrated respectively in Fig. 3 and Fig. 4, when distributed allocation is notable Time, it is possible that the channel quality overhead during reducing localized subbaiids number and therefore realizing up-link reduces.Make For example, if there is four localized subbaiids, and the number of the indication location of the channel quality of subband is eight, then In the case of the number of localized subbaiids drops to two, would only need to five positions to represent its channel quality (such as, MCS indexes).On the other hand, reduce rather than power reduction if needing to realize bandwidth cost, then can use extra Three positions improve the granularity of channel-quality feedback.

With reference to Fig. 5-7, figure illustrates the method about the multiplexing to localized transmission and distributed transmission. Although for simplicity of illustration described method being shown and described as series of actions, it will be appreciated that and understand, institute The method of stating is not limited to the order of action, because according to apllied theme, some action can be illustrated herein by being different from And described order carries out and/or carries out with other action simultaneously.Such as, it will be understood by one of ordinary skill in the art that and know Dawn, a kind of the most a succession of (such as, in state diagram) state that is mutually related of method or event.Additionally, All illustrated action may be not required to when implementing a method according to apllied theme.

Translate into Fig. 5 especially, figure illustrates and a kind of promotes downlink multiplexed in wireless communication system The method 500 of transmission.Described method starts from 502, and determines the need for localized transmission at 504 and divide The multiplexed transmission of cloth transmission.May for example be based on business service, user capability and the characteristic of channel and make this One determines.If being made without multiplexing, the most described method moves on to 506.At 506, by localized transmission And the one in distributed transmission is for downlink transmission.If needing multiplexed transmission, the most described method Move on to 508, wherein frequency band is divided into the localized subbaiids of fixed number.At 510, at each localized subbaiids The most all allow distribution of resource formula is distributed.At 512, notify that its resource is distributed to each scheduled user, and At 514, described scheduled user receives the signal of the part being assigned to distributed user in instruction localized subbaiids.

Referring now to Fig. 6, figure illustrates and a kind of promotes downlink multiplexed in wireless communication system The case method 500 of transmission.Described method starts from 602, and determines the need for localized transmission at 604 And the multiplexed transmission of distributed transmission.May for example be based on business service, user capability and the characteristic of channel Make and this determining.If being made without multiplexing, the most described method proceeds to 606.At 606, One in localized transmission and distributed transmission is used for downlink transmission.If needing multiplexed transmission, The most described method proceeds to 608, and described frequency band is wherein divided into the localized subbaiids of fixed number.610 Place, the distributed allocation maintaining subcarrier in each localized subbaiids is constant.At 612, when in localized subbaiids When occurring the increase of the perforation of distributed resource, the reduction of the uplink overhead of sub-band quality report can be realized.Send out This reduction of raw uplink overhead is because by the phase of the localized subbaiids number causing the perforation of distributed resource Should reduce.At 614, notify that its resource is distributed to each scheduled user, and at 616, described scheduled use Family receives the signal of the part being assigned to distributed user in instruction localized subbaiids.

Referring now to Fig. 7, figure illustrates and a kind of promotes downlink multiplexed in wireless communication system The method 700 of transmission.Described method starts from 702, and determines the need for localized transmission at 704 and divide The multiplexed transmission of cloth transmission.May for example be based on business service, user capability and the characteristic of channel to make This determine.If being made without multiplexing, the most described method proceeds to 706.At 706, locally Change the one in transmission and distributed transmission for downlink transmission.If needing multiplexed transmission, then institute The method of stating proceeds to 708, and wherein said frequency band is divided into the localized subbaiids of fixed number.At 710, rule The interval of the distributed allocation of uneven perforation in fixed each localized subbaiids.At 712, by by some Localized subbaiids is changed into distributed resource to reduce the number of the localized subbaiids in frequency band.It is thereby achieved that it is up Channel quality overhead in link reduces.At 714, notify that its resource is distributed to each scheduled user, and 716 Place, described scheduled user receives the signal of the part distributing to distributed user in instruction localized subbaiids.

Referring now to Fig. 8, figure illustrates the wireless communication system 800 according to various embodiments presented herein. System 800 can include one or more base stations 802 (such as access point) in one or more sectors, Described base station each other and/or receives to one or more mobile devices 804, transmits, relaying (s) radio communication Signal.It will be understood by one of ordinary skill in the art that each base station 802 may each comprise transmitter chain and receiver chain, its Middle each can include again multiple assembly (such as, processor, modulator, many being associated with signal transmission and reception Path multiplexer, demodulator, demultiplexer, antenna ...).Mobile device 804 can be (such as) honeycomb Formula phone, smart phone, laptop computer, handheld communications device, hand-held computing device, satelline radio, Global positioning system, PDA and/or any other are suitable to the device of communication on radio communication device 800.

Base station 802 can be by using single forward link (FLO) technology to mobile device 804 broadcasted content.Such as, Can broadcast real time audio and/or vision signal and Non-real-time services (such as, music, weather, news recap, business, Financial Information ...).According to an example, by base station 102, content can be broadcast to mobile device 804.Mobile device 804 can receive and export this content (such as, by using visual output, audio frequency to export ...).Additionally, FLO Technology may utilize OFDM (OFDM).Frequency spectrum is generally divided into by the technology based on frequency division of such as OFDM Different channels, such as, described frequency spectrum can be divided into uniform bandwidth block.Whole system bandwidth is divided by OFDM effectively It is slit into multiple orthogonal frequency channels.It addition, ofdm system can use time-division and/or frequency division multiple access with in multiple base stations Multiple data transmission of 802 realizes orthogonality.

In FLO system, therefore, to assure that mobile device 804 suitably receives the data that base station 802 is provided.Go out In described purpose, and such as it is described in more below, FLO test application protocol (FTAP) can be used to carry out checking system The physical layer of 800.In other words, FTAP can be used to guarantee that mobile device 804 just suitably connects from base station 802 Receive data.FTAP defines batch processing, and described program can be used for when being implemented by both network and mobile device 804 Minimum performance for described device is tested.For this purpose, FTAP stream (a succession of FTAP bag) can be at net Configure in network and activate to test concrete device behavior.According to an example, each FTAP bag all can carry and such as survey Examination sequence number, test signature and the information of test data pattern.Described sequence number can be to obtain from the counter of 32 32 integers, wherein said counter can be initiated with any appropriate value.It will be appreciated, however, that described sequence number can have There is any an appropriate number of position, and described counter can be the counter with any an appropriate number of position.Described survey Examination signature can be the pseudo-random integer of eight, and (such as, described pseudo-random integer can be from by using specific multinomial P (x)=x¹⁵+ x+1) and the 15 state simple shift register annular of position that generates program (SSRG) and produce delay Rush in device and obtain.But, equally, described multinomial and described simple shift register generate program can be different, and should Understand, expect from described SSRG and described polynomial suitable change and intend to fall into the scope of following claims Under.

Mobile device 804 can perform to meet the data validation of FTAP.Such as, if using well-known algorithm Produce test data, then mobile device 104 can implement substantially similar algorithm to check received data the most just Really.The inspection performing mobile device is very simple and can enable real-time report (such as, mobile device 804 can Mistake is reported) via 1x link or other suitable link any.For enable this inspection, mobile device 104 it will be appreciated that The state of FTAP stream.Additionally, device 104 should solve erasing or coverage loss and wraparound.

Referring now to Fig. 9, figure illustrates the system 900 promoting optimum downlink transmission.System 900 can be wrapped Containing the module 902 for receiving the information about access terminals capability.Such as, in particular, system 900 can accommodate Miscellaneous service service, user capability and further allow for the user of one or more mobile devices and utilize the characteristic of channel. System 900 also can comprise module 904, its for according to terminal capability to the localization of access terminal and distributed transmission Multiplex.Module 904 can select for carrying out the optimum side multiplexed according to terminal capability at given time Case.

Figure 10 is to provide other sector in a wireless communication environment according to illustration The terminal of communication or illustrating of user's set 1000.Terminal 1000 includes receiver 1002, and it is from (such as) One or more reception antennas receive signal, and received signal execution typical actions (is such as filtered, put Greatly, down coversion ...) and regulated signal is digitized to obtain sample.Described sample can be demodulated by demodulator 1004 And provide received frequency pilot sign to processor 1006.

Processor 1006 can be to be exclusively used in analyze the information that received of receiver assembly 1002 and/or produce for by passing The processor of the information of defeated device 1014 transmission.Processor 1006 can be one or more of control terminal 1000 The processor of assembly, and/or analyze information that receiver 1002 received, produce the information transmitted by transmitter 1014 And control the processor of one or more assemblies of terminal 1000.Processor 1006 may utilize methods described herein In any one, wherein comprise those for Fig. 5-7 describe methods.

It addition, terminal 1000 can comprise analyzes the transmission control being received input wherein comprising the confirmation to Successful transmissions Assembly 1008 processed.Can receive from serving sector and/or adjacent sectors and confirm (ACK).Confirmation may indicate that, previous Transmission is successfully received by the one in described access point and is decoded.Without receiving confirmation, if or connect Receive NACK (NAK), then can resend described transmission.Transmission controls assembly 1008 and is incorporated into processing In device 1006.Can comprise it will be appreciated that transmission controls assembly 1008 and determine that the reception to confirmation combines and perform point The transmission control code of analysis.

Terminal 1000 can comprise additionally in: memory 1010, and it is operatively coupled to processor 1006 and can store The information relevant to transmission；Active sector group；For the method controlling transmission；Look-up table, it includes relative Information and any other adequate information relevant to transmission and active sector described herein group.It will be appreciated that number described herein Can be volatile memory or nonvolatile memory according to storage assembly (such as, memory), maybe can comprise volatile Both property and nonvolatile memory.By illustrating and non-limiting way, nonvolatile memory can comprise read-only Memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electric erasable ROM (EEPROM) or flash memories.Volatile memory can comprise serves as depositing at random of external flash memory Access to memory (RAM).By illustrating and non-limiting way, RAM can possess various ways perhaps, such as same Step RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data speed Rate SDRAM (DDR SDRAM), the SDRAM (ESDRAM), the synchronization link DRAM (SLDRAM) that strengthen And direct RAMBUS RAM (DRRAM).The memory 1010 of described thematic system and method it is intended to but It is not limited to these and the memory of other suitable type any.Processor 1006 is connected to Symbol modulator 1012 and passes The defeated transmitter 1014 being modulated signal.

Figure 11 is the figure explanation promoting the system 1100 according to various aspects other sector communication in a communication environment Bright.System 1100 includes that access point 1102, described access point have by one or more reception antennas 1106 From one or more terminals 1104 receive signal and by multiple transmission antennas 1108 be transferred to one or one with The receiver 1110 of upper terminal 1104.Terminal 1104 can comprise those terminals that access point 1102 is supported, and The terminal 1104 that adjacent sectors is supported.In one or more aspects, individual antenna group can be used to implement to connect Receive antenna 1106 and transmission antenna 1108.Receiver 1110 can receive information and with operation side from reception antenna 1106 Formula is associated with the demodulator 1112 of demodulation received information.It will be understood by one of ordinary skill in the art that receiver 1110 Can be that (such as, the multiple baseband correlators of a kind of use individually process multi-path signal to (such as) harrow type receiver The technology of component ...), receiver based on MMSE or be suitable to isolate a certain other to its terminal assigned and connect Receive device.According to various aspects, multiple receiver (such as, one receiver of each antenna) can be used, and described in connect Receive device can communicate with one another to provide the improved estimation to user data.Demodulated symbol is analyzed by processor 1114, institute State processor be similar to above with reference to the processor described in Figure 10 and be coupled to store the information relevant with terminal and terminal The memory 1116 of the assigned resource etc. being associated.Each antenna receiver output all can by receiver 1110 and/ Or processor 1114 is jointly processed by.Signal can be multiplexed by modulator 1118, passes through for transmitter 1120 Transmission antenna 1108 is transferred to terminal 1104.

Access point 1102 farther includes terminal communication component 1122, its can be different from processor 1114 or and its Integral processor.Terminal communication component 1122 can obtain the resource of the terminal supported by adjacent sectors and assign letter Breath.It addition, terminal communication component 1122 can provide to the adjacent sectors of the terminal supported by access point 1102 assigns letter Breath.Assignment information can be provided via backhaul signaling.

Based on the information about assigned resource, terminal communication component 1122 can instruct carrying out the support of free adjacent sectors The detection of transmission of terminal and decoding to the transmission received.Memory 1116 can be required at reception decoding bag Assignment information before maintain from terminal receive bag.Terminal communication component 1122 also can control the one-tenth indicated transmission The transmission of the confirmation that merit receives and decodes and reception.It will be appreciated that terminal communication component 1122 can comprise transimiison analysis code, Described transimiison analysis code performs base with assigning resource, the terminal of identification soft handover, decoding transmission etc. combination In practical control.Described terminal analysis code may utilize method based on artificial intelligence, and described method can push away with execution Reason and/or with optimize terminal capabilities combine probability determine and/or based on statistics determination combine.

Figure 12 shows exemplary wireless communication system 1200.For simplicity's sake, wireless communication system 1000 depicts One terminal and two access points.It will be appreciated, however, that described system can comprise one or more access points and/ Or more than one terminal, the most extra access point and/or terminal can be approximately similar to or be different from illustration hereinafter described Property access point and terminal.Additionally it should be appreciated that access point and/or terminal can use system as herein described (Fig. 1-4 and 8-11) and/or method (Fig. 5-7).

Figure 12 display terminal 1204, the Service Access Point 1202X supporting terminal 1204 and multiple-access multi-carrier wave communication system The block diagram of adjacent access point 1202Y in system 1200.At access point 1202X, transmission (TX) data process Device 1214 receives business datum (that is, information bit) and from controller 1220 and scheduler 1230 from data source 1212 Receive signaling and out of Memory.Such as, scheduler 1230 can be that terminal provides assignment of carriers.It addition, memory 1222 Can maintain about the information currently or previously assigned.TX data processor 1214 uses multi-carrier modulation (such as OFDM) received data is encoded and modulate with provide be modulated data (such as OFDM symbol).So After, transmitter unit (TMTR) 1216 processes and is modulated data to produce subsequently from the descending chain of antenna 1218 transmission Road is modulated signal.

Before assignment information is transferred to terminal 1204, scheduler can provide assignment information to access point 1202Y. Described assignment information can be provided via backhaul signaling (such as, T1 line) 1210.Or, assignment information can passed Access point 1202Y is provided it to after being passed to terminal 1204.

At terminal 1204, antenna 1252 receive and transmitted and be modulated signal and supply the signal to receive Device unit (RCVR) 1254.Acceptor unit 1254 processes and digitizes received signal to provide sample.Then, Received (RX) data processor 1256 and described sample is demodulated and decodes providing decoded data, described Decoded data can comprise recovered business datum, message, signaling etc..Described business datum can be supplied to data Remittance 1258, and the carrier assignment information of terminal 1204 is supplied to controller 1260.

Controller 1260 uses the specific carriers having been assigned to terminal 1204 and having indicated that in received assignment of carriers The data in up-link are instructed to transmit.Memory 1262 can maintain about assigned resource (such as, frequency, the time And/or code) information and other relevant information.

For terminal 1204, TX data processor 1274 receives business datum and from control from data source 1272 Device 1260 receives signaling and out of Memory.Various types of data are used by TX data processor 1274 is assigned Carrier wave encode and modulate and by transmitter unit 1276 process further with produce subsequently from antenna 1252 transmit upper Line link is modulated signal.

At access point 1202X and 1202Y, that carrys out self terminal 1204 is transmitted and is modulated signal by antenna 1218 Receive, acceptor unit 1232 process and demodulated by RX data processor 1234 and decoded.Can connect based on service Assignment information produced by access point 1202X and transmitted signal is decoded and is supplied to adjacent access point 1202Y.It addition, Access point 1202X and 1202Y can produce and be provided to another access point (1202X or 1202Y) and/or be supplied to The confirmation (ACK) of terminal 1204.Decoded signal can be supplied to data remittance 1236.Acceptor unit 1232 can Estimate the received signal quality (signal to noise ratio (SNR) such as, received) of each terminal and this information is provided To controller 1220.RX data processor 1234 provides the warp of each terminal to controller 1220 and scheduler 1230 Recover feedback information.

Scheduler 1230 uses described feedback information to perform some functions, and such as (1) selects at reverse link On one group of terminal carrying out data transmission and (2) to selected terminal assignments carrier wave.To use the most on the forward link Assignment of carriers in scheduled terminal is transferred to these terminals.

Techniques described herein can be implemented in every way.Such as, these technology may be implemented in hardware, software or its In combination.For hardware embodiments, for these technology processing unit (such as, controller 1220 and 1260, TX and RX processor 1214 and 1234 etc.) may be implemented in one or more special ICs (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), FPGA dress Put (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, In other electronic unit being designed to execution functionality described herein or a combination thereof.

For Software implementations, module (such as, program, the letter performing functionality described herein can be used Number etc.) implement techniques described herein.Software code is storable in performing in memory cell and by processor. In described memory cell may be implemented in processor or outside processor, outside memory cell is implemented on processor In the case of, memory cell can use known various methods in art to be communicably coupled to processor.

The example comprised in terms of one or more as described above.It is, of course, not possible to for describing aforementioned aspect Purpose describe each of each assembly or method it is conceivable that combination, but those skilled in the art will appreciate that, Various aspects are likely to have other combinations many and arrangement.Therefore, described aspect it is intended to belong to right of enclosing All this type of in the spirit and scope of claim changes, revises and version.Additionally, with regard to this detailed description or power For using term " to comprise " in profit claim, the mode that comprises of this word can be similar to when term " includes " The mode of " including " is explained when claims are used as adversative.

Claims (32)

1. a wireless communications method, comprising:

Receive the information about access terminals capability；And

Optimum multiplexing scheme is selected to come arriving described access terminal on downlink channel according to described ability Localization and distributed transmission in communication multiplex,

Wherein before carrying out described multiplexing, it is determined whether need to enter between localization and distributed transmission Row is coordinated, if needing to carry out described coordination, then perform distributed in the middle of the subcarrier in localized subbaiids Distribution, and wherein said multiplexing scheme by scheduled user notify its corresponding subcarrier distribution and Signal to described scheduled user and resource is already allocated to the part of distributed allocation users and promotes excellent The frequency diversity changed.

2. the method for claim 1, wherein said multiplexing is with the estimation of downlink channel conditions And become.

3. the method for claim 1, wherein said multiplexing becomes with subscriber data.

4. the method for claim 1, wherein said multiplexing with at a high speed with the ratio of low speed user and Become.

5. the method for claim 1, the number of the distributed allocation the most no matter existed is how many, group The number becoming the localized subbaiids of frequency band keeps constant.

6. the method for claim 1, wherein multiplexes and subtracts based on increasing with distributed resource allocation Little number of subcarriers.

7. the method for claim 1, wherein multiplexes based on the local beggar reduced in whole frequency band The number of band.

8. method as claimed in claim 7, wherein increases along with distributed resource allocation, described local beggar The number of band reduces, and the number of the subcarrier in localized subbaiids is preserved and keeps within a certain range.

9. method as claimed in claim 7, its farther include by about described localized subbaiids border and The information at the interval between distributed subcarriers conveys to scheduled user.

10. method as claimed in claim 9, wherein corresponding control each scheduled user sends out on channel Signal notifies that concrete resource is distributed, and described resource distribution comprise subband identification, the starting point of distributed user and Interval or the starting point of localized users and the number of tone.

11. methods as claimed in claim 10, it is each to inform that it farther includes allocated subbands ID type Transmitting described in corresponding scheduled user will be localization, distributed or localized transmission and distributed biography The two multiplexed signal defeated, so that described scheduled user knows controls channel about to being associated Explain.

12. the method for claim 1, are wherein divided into frequency band some localized subbaiids, and are every One localized subbaiids specifies the interval of the distributed allocation of perforated.

13. methods as claimed in claim 12, are wherein distributed one or more localized subbaiids to reduce Need the number of the subband that uplink quality feeds back.

14. methods as claimed in claim 13, wherein signal on the control channel of corresponding scheduled user Notify that concrete resource is distributed.

15. methods as claimed in claim 14, are wherein unevenly distributed over described local by distributed allocation Beggar brings.

16. methods as claimed in claim 15, wherein said multiplexing comprise all through distribution one or More than one localized subbaiids, and localized subbaiids around is to localize by boring a hole distribution of resource formula And not by distribution of resource formula bore a hole and localize in one.

17. methods as claimed in claim 16, wherein said multiplexing provides and makes described localized subbaiids protect Hold constant frequency span.

18. the method for claim 1, wherein when distributed allocation is notable, reduce described localization The number of subband is to promote that the channel quality overhead realized during up-link reduces.

19. methods as claimed in claim 18, wherein needs realize bandwidth cost reduce rather than power subtract In the case of little, extra three position can be used to improve the granularity of channel-quality feedback.

20. 1 kinds of equipment, comprising:

Memory, it is used for storing information；

Processor, it is used for performing instruction；And

Optimization component, it receives the information about access terminals capability and selects optimum multichannel multiple according to described ability Carry out to the localization in the communication of described access terminal and distributed transmission on downlink channel by scheme Multiplexing,

Wherein before carrying out described multiplexing, it is determined whether need to enter between localization and distributed transmission Row is coordinated, if needing to carry out described coordination, then perform distributed in the middle of the subcarrier in localized subbaiids Distribution, and wherein said multiplexing scheme by scheduled user notify its corresponding subcarrier distribution and Signal to described scheduled user and resource is already allocated to the part of distributed allocation users and promotes excellent The frequency diversity changed.

21. equipment as claimed in claim 20, wherein said optimization component is according to downlink channel conditions Estimation and perform described multiplexing.

22. equipment as claimed in claim 20, wherein said optimization component performs described according to subscriber data Multiplexing.

23. equipment as claimed in claim 20, wherein said optimization component is according to the ratio of high speed with low speed user Rate and perform described multiplexing.

24. equipment as claimed in claim 20, wherein said optimization component is according to the office reduced in whole frequency band Number that portion beggar carries and perform described multiplexing.

25. 1 kinds of equipment, comprising:

For receiving the device of the information about access terminals capability；And

Access eventually to described for selecting optimum multiplexing scheme to come on downlink channel according to described ability Localization and distributed transmission in the communication of end carry out the device that multiplexes,

Wherein before carrying out described multiplexing, it is determined whether need to enter between localization and distributed transmission Row is coordinated, if needing to carry out described coordination, then perform distributed in the middle of the subcarrier in localized subbaiids Distribution, and wherein said multiplexing scheme by scheduled user notify its corresponding subcarrier distribution and Signal to described scheduled user and resource is already allocated to the part of distributed allocation users and promotes excellent The frequency diversity changed.

26. equipment as claimed in claim 25, wherein said multiplexing estimating with downlink channel conditions Count and become.

27. equipment as claimed in claim 25, wherein said multiplexing becomes with subscriber data.

28. equipment as claimed in claim 25, wherein said multiplexing is with the ratio of high speed with low speed user And become.

29. equipment as claimed in claim 25, wherein multiplex based on distributed resource allocation increase Reduce the number of subcarrier.

30. equipment as claimed in claim 25, wherein multiplex based on the localization reduced in whole frequency band The number of subband.

31. equipment as claimed in claim 25, it farther includes for by about described localized subbaiids The information at the interval between border and distributed subcarriers conveys to the device of scheduled user.

32. equipment as claimed in claim 31, it farther includes for allocated subbands ID type to inform Transmitting described in each corresponding scheduled user will be localization, distributed or localized transmission and distribution Formula transmits the multiplexed signal of the two, so that described scheduled user knows about to the control letter that is associated The device of the explanation in road.