CN104471884B

CN104471884B - Transmitting diversity for interference cancellation disturbs signal combination

Info

Publication number: CN104471884B
Application number: CN201380034455.9A
Authority: CN
Inventors: Y·黄; T·罗; W·陈; S·马利克
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2012-06-29
Filing date: 2013-06-27
Publication date: 2016-11-30
Anticipated expiration: 2033-06-27

Abstract

A kind of wireless communications method includes receiving the first interference signal and the second interference signal.The method also includes determining the different editions whether the second interference signal constitutes the first interference signal.Disturb signal combined to estimate interference cancellation signal with second first interference signal it addition, the method is additionally included in when the second interference signal is the different editions of the first interference signal.

Description

Transmitting diversity for interference cancellation disturbs signal combination

Cross-Reference to Related Applications

The application requires entitled in submit on June 29th, 2012 according to 35U.S.C. § 119 (e) “COMBINING INTERFERENCE SIGNAL DIVERSITY FOR INTERFERENCE CANCELLATION (combined interference signal diversifying is for interference cancellation) " US provisional patent Shen Please No.61/666, the rights and interests of 680, and the disclosure of this provisional application included in by entirety clearly by quoting In this.

Background technology

Field

The aspects of the disclosure relates generally to wireless communication system, particularly relates to the different versions of combined interference signal This is for interference cancellation.

Background

Wireless communication system is widely deployed to provide such as phone, video, data, information receiving and transmitting and wide The various telecommunications service such as broadcast.Typical wireless communication system can use can be by sharing available system resource (such as, bandwidth, transmitting power) supports the multiple access technology with multi-user communication.This kind of multiple access technology Example includes CDMA (CDMA) system, time division multiple acess (TDMA) system, frequency division multiple access (FDMA) System, OFDM (OFDMA) system, single-carrier frequency division multiple access (SC-FDMA) system, With TD SDMA (TD-SCDMA) system.

These multiple access technologies have been adopted in various telecommunication standards and have enable different wireless devices to provide City, country, area and even global rank carry out the common protocol communicated.Emerging telecommunications mark An accurate example is Long Term Evolution (LTE).LTE promulgates by third generation partnership projects (3GPP) The enhancing collection of the mobile standard of Universal Mobile Telecommunications System (UMTS).It is designed to improve frequency spectrum effect Rate, reduce cost, improve service, utilize new frequency spectrum and preferably with on downlink (DL) Use OFDMA, at up-link (UL) upper use SC-FDMA and use multiple-input and multiple-output (MIMO) other open standards of antenna technology are preferably integrated and are preferably supported mobile broadband the Internet Access.But, along with the demand sustainable growth that mobile broadband is accessed, exist and to enter in LTE technology The needs that row improves further.It is preferred that these improvement should apply to other multiple access technologies and use this The telecommunication standard of a little technology.

This feature sketching the contours of the disclosure and technical advantage to try hard to make detailed description below the most broadly Can be better understood.Other features and advantages of the present invention will be described below.Those skilled in the art It should be appreciated that the present invention can be easily used as changing or being designed to carry out the purpose identical with the present invention The basis of other structures.Those skilled in the art it will also be appreciated that such equivalent constructions is without departing from appended The teachings of the present invention illustrated in claim.It is considered as that the novel feature of characteristic of the present invention is in its group Knit with operational approach two aspect together with further purpose and advantage when being considered in conjunction with the accompanying following description Will be better understood when.But it is to be expressly understood that provide each width accompanying drawing to be all only used for solution and mediate a settlement description Purpose, and it is not intended as the definition of limitation of the invention.

General introduction

According to the one side of the disclosure, a kind of method disclosing radio communication.The method is included in receiver Place receives the first interference signal.The method is additionally included at this receiver and receives the second interference signal.The method Also include determining the different editions whether the second interference signal includes the first interference signal.The method is wrapped further Include the first interference signal and the second interference when the different editions that the second interference signal is the first interference signal Signal is combined to estimate interference cancellation signal.

Another aspect of the present disclosure relates to a kind of equipment, and it includes for receiving the first interference letter at receiver Number device.This equipment also includes the device for receiving the second interference signal at this receiver.This equipment Also include for determining whether the second interference signal includes the device of the different editions of the first interference signal.This sets Disturb first during for the different editions farther included at the second interference signal being the first interference signal Signal and the second interference signal are combined to estimate the device of interference cancellation signal.

In another aspect of the present disclosure, disclose a kind of have non-transient computer-readable medium for wireless The computer program of the radio communication in network.On this computer-readable medium, record has non-transient program Code, this program code makes the execution of this (all) processor operate as follows when being performed by (all) processors: The first interference signal is received at receiver.This program code also makes this (all) processor at this receiver Receive the second interference signal.This program code also makes this (all) processor determine whether the second interference signal wraps Include the different editions of the first interference signal.This program code also makes this (all) processor disturb signal second By combined to estimate to the first interference signal and the second interference signal when being the different editions of the first interference signal Interference cancellation signal.

On the other hand disclose and there is memorizer and coupled to the nothing of at least one processor of this memorizer Line communicator.Should be configured at receiver receive the first interference signal by (all) processors.It is somebody's turn to do (all) Processor is further configured at this receiver receive the second interference signal.It is somebody's turn to do (all) processors by further It is configured to determine the different editions whether the second interference signal includes the first interference signal.Should (all) processors It is further configured to the first interference letter when the different editions that the second interference signal is the first interference signal Number with second interference signal combined to estimate interference cancellation signal.

Other features and advantages of the present invention will be described below.Those skilled in the art it should be appreciated that this The bright base being easily used as changing or be designed to carry out other structures of the purpose identical with the present invention Plinth.Those skilled in the art it will also be appreciated that such equivalent constructions is without departing from institute in claims The teachings of the present invention illustrated.It is considered as that the novel feature of characteristic of the present invention is in its tissue and operational approach Two aspects will be by the most geographical when being considered in conjunction with the accompanying following description together with further purpose and advantage Solve.But it is to be expressly understood that provide each width accompanying drawing to be all only used for solution and mediate a settlement description purpose, and it is not intended to Definition as limitation of the invention.

Accompanying drawing is sketched

When combining accompanying drawing and understanding detailed description described below, inventive feature, nature and advantages will become Must become apparent from, in the accompanying drawings, same reference numerals makees respective identification all the time.

Fig. 1 is the diagram of the example explaining orally the network architecture.

Fig. 2 is the diagram of the example explaining orally access network.

Fig. 3 is the diagram of the example explaining orally the downlink frame structure in LTE.

Fig. 4 is the diagram of the example explaining orally the uplink frame structures in LTE.

Fig. 5 is to explain orally for user and the diagram of the example of the radio protocol architecture of chain of command.

Fig. 6 is the diagram of the example explaining orally evolved B node and subscriber's installation in access network.

Fig. 7 A and 7B illustrates that the exemplary transmission received in interference signal of the one side according to the disclosure is divided The block diagram of collection.

Fig. 8 A-8C illustrates that the combining diversity interference signal of the one side according to the disclosure is for interference cancellation The block diagram of example.

Fig. 9 illustrates that the interference signal of combining diversity iteratively of the one side according to the disclosure disappears for interference The block diagram of the example of the process gone.

Figure 10 is to explain orally carrying out for the different editions controlled disturbing signal of the one side according to the disclosure Combine the block diagram of the method for interference cancellation.

Figure 11 is the block diagram explaining orally the disparate modules/device/assembly in example devices.

Describe in detail

The following detailed description of the drawings is intended to the description as various configurations, and be not intended to represent can be real Trample only configuration of concept described herein.This detailed description includes detail to provide respectively The thorough understanding of the conception of species.But, those skilled in the art will be apparent that do not have these to have Body details also can put into practice these concepts.In some instances, illustrate in form of a block diagram well-known structure and Assembly is to avoid falling into oblivion this genus.

The each side of telecommunication system is given with reference to various apparatus and method.These apparatus and method are in detailed below Description is described and in the accompanying drawings by various frames, module, assembly, circuit, step, process, algorithm Explain orally Deng (being referred to as " element ").These elements can use electronic hardware, computer software or its What combination realizes.This dvielement is implemented as hardware or software depends on specifically applying and being added to entirety Design constraint in system.

Can use include one as any part of example, element or element or any combination of element Or " processing system " of multiple processor realizes.The example of processor includes: microprocessor, microcontroller Device, digital signal processor (DSP), field programmable gate array (FPGA), programmable logic device Part (PLD), state machine, gate control logic, discrete hardware circuit and other be configured to perform the disclosure In various functional appropriate hardware of describing in the whole text.One or more processors in processing system can be held Row software.Software should be construed broadly into and mean instruction, instruction set, code, code segment, program generation Code, program, subprogram, software module, application, software application, software kit, routine, subroutine, right As, can executive item, the thread of execution, code, function etc., no matter its be with software, firmware, middleware, It is all such that microcode, hardware description language or other terms are addressed.

Correspondingly, in one or more exemplary embodiments, described function can hardware, software, Firmware or its any combination realize.If realized in software, then these functions can be as one or many Bar instruction or code storage or coding are on non-transient computer-readable medium.Computer-readable medium includes meter Calculation machine storage medium.Storage medium can be any usable medium that can be accessed by a computer.As example Non-limiting, such computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or Other optical disc storage, disk storage or other magnetic storage apparatus, maybe can be used to carry or store instruction or number Expectation program code and other medium any that can be accessed by a computer according to version.As made herein Dish (disk) and dish (disc) include compact disc (CD), laser dish, laser disc, digital versatile dish (DVD), floppy disk and blu-ray disc, its mid-game the most magnetically reproduces data, and dish laser comes optically Reproduce data.Combinations of the above also should be included within the scope of computer readable media.

Fig. 1 is the diagram explaining orally LTE network framework 100.LTE network framework 100 can be described as evolved Grouping system (EPS) 100.EPS 100 can include one or more subscriber's installation (UE) 102, evolution Type UMTS terrestrial radio access network (E-UTRAN) 104, Evolved Packet Core (EPC) 110, The IP service 122 of home subscriber servers (HSS) 120 and operator.EPS can be with other access networks Interconnection, but for simplify for the sake of, those entity/interfaces do not show that.As it can be seen, EPS provides packet Exchange Service, but, as those skilled in the art artisan will readily appreciate that, be given in the whole text in the disclosure is various Concept can be extended to provide the network of circuit switched service.

E-UTRAN includes evolved B node (eNodeB) 106 and other eNodeB nodes 108. ENodeB 106 provides the user towards UE 102 and chain of command protocol terminations.ENodeB 106 can be via returning Journey (such as, X2 interface) is connected to other eNodeB 108.ENodeB 106 alternatively referred to as base station, base Transceiver Station, radio base station, wireless set, transceiver function, Basic Service Set (BSS), Extended service set (ESS) or other certain suitable terms.ENodeB 106 provides logical for UE 102 Access point toward EPC 110.The example of UE 102 includes that cell phone, smart phone, session setup are assisted View (SIP) phone, laptop devices, personal digital assistant (PDA), satelline radio, the whole world are determined Position system, multimedia equipment, video equipment, digital audio-frequency player (such as, MP3 player), phase Machine, game console or any other similar function device.UE 102 also can be by people in the art Member's referred to as movement station, subscriber station, mobile unit, subscri er unit, radio-cell, remote unit, movement set Standby, wireless device, Wireless Telecom Equipment, remote equipment, mobile subscriber station, access terminal, mobile terminal, Wireless terminal, remote terminal, hand-held set, user agent, mobile client, client or other certain Suitably term.

ENodeB 106 is connected to EPC 110 via such as S1 interface.EPC 110 includes mobile management Entity (MME) 112, other MME 114, gateway 116 and packet data network (PDN) Gateway 118.MME 112 is the control node processing the signaling between UE 102 and EPC 110.Typically For, MME 112 provides carrying and connection management.All User IPs are grouped by gateway 116 Transmission, gateway 116 is itself coupled to PDN Gateway 118.PDN Gateway 118 provides UE IP ground Location distribution and other functions.PDN Gateway 118 is connected to the IP service 122 of operator.Operator IP service 122 can include the Internet, Intranet, IP Multimedia System (IMS) and PS streaming Service (PSS).

Fig. 2 is the diagram of the example explaining orally the access network 200 in LTE network framework.In the example present, Access network 200 is divided into several cellular zoning (cellular cell) 202.One or more lower-wattages etc. Level eNodeB 208 can have and the honeybee of the one or more cellular cells crossover in these cellular cells 202 Nest zoning 210.Lower-wattage class eNodeB 208 can be remote radio heads (RRH), millimicro Micro-cell (such as, domestic eNodeB (HeNB)), pico cells or macrocellular are little District.Grand eNodeB 204 is each assigned to corresponding cellular cell 202 and is configured as cellular cell All UE 206 in 202 provide the access point to EPC 110.In this example of access network 200, There is no centerized fusion device, but centerized fusion device can be used in replaceability configures.eNodeB 204 Be responsible for all functions relevant with radio, including radio bearer control, access control, mobility control, Scheduling, safety and the connectedness with gateway 116.

Modulation that access network 200 is used and Multiple Access scheme can depend on the certain telecommunications standards just disposed And change.In LTE applies, use OFDM on the uplink and use on uplink SC-FDMA is to support both FDD (FDD) and time division duplex (TDD).Such as art technology Personnel are by understand the most from the following detailed description, and each conception of species given herein is highly suitable for LTE applies.But, these concepts can be easily extended to use other of other modulation and multiple access technology Telecommunication standard.As example, these concepts extend to evolution data optimization (EV-DO) or super mobile Broadband (UMB).EV-DO and UMB is the conduct promulgated by third generation partnership projects 2 (3GPP2) The air-interface standard of a part for CDMA2000 family of standards, and use CDMA to provide to movement station Broadband the Internet accesses.These concepts extend also to use wideband CDMA (W-CDMA) and other The universal terrestrial radio of CDMA variant (such as TD-SCDMA) is electrically accessed (UTRA)；Use TDMA Global system for mobile communications (GSM)；And the evolved UTRA (E-UTRA) of employing OFDMA, Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20 and Flash-OFDM.UTRA, E-UTRA, UMTS, LTE and GSM are from 3GPP Described in the document of tissue.CDMA2000 and UMB is described in the document organized from 3GPP2. The actual wireless communication standard used and multiple access technology will depend upon which specifically to be applied and is added to system Overall design constraints.

ENodeB 204 can have the multiple antennas supporting MIMO technology.The use of MIMO technology makes ENodeB 204 can utilize spatial domain to support spatial reuse, beam shaping and transmitting diversity.Spatial reuse Can be used for transmitting different data stream the most simultaneously.These data streams can be transmitted to single UE 206 is to increase data transfer rate or to send multiple UE 206 to increase overall system capacity.This is to pass through space Precoding each data stream (that is, application amplitude and the proportional zoom of phase place), then by multiple transmitting skies Line transmits what often stream once spatial pre-coding was reached on the uplink.Data stream through spatial pre-coding Arriving at (all) UE 206 with different spaces signature, this makes each UE in (all) UE 206 206 can recover the one or more data streams with this UE 206 as destination.On uplink, often Individual UE 206 transmits the data stream through spatial pre-coding, and it is each through sky that this makes eNodeB 204 can be identified for that Between the source of data stream of precoding.

Spatial reuse typically uses when channel conditions is good.When channel conditions is less favourable, can use Emitted energy is concentrated in one or more directions by beam shaping.This can by data are carried out for The spatial pre-coding launched by multiple antennas is reached.Well cover to reach at cell edge Lid, single current beam-forming transmission can use in conjunction with launching diversity.

In the following detailed description, by with reference to supporting that the mimo system of OFDM is retouched on the uplink State the various aspects of access network.OFDM is to modulate data on the several subcarriers in OFDM symbol Spread spectrum.These subcarriers separate with precise frequency.This separation provides and allows a receiver to from this A little subcarriers recover " orthogonality " of data.In the time domain, protection can be added to each OFDM symbol Interval (such as, Cyclic Prefix) disturbs between OFDM symbol to resist.Up-link can use DFT to expand The SC-FDMA of exhibition ofdm signal form is to compensate height power ratio (PAPR).

Fig. 3 is the diagram 300 of the example explaining orally the downlink frame structure in LTE.Frame (10ms) can It is divided into the subframe of 10 equal sizes.Each subframe can include 2 coherent time time slots.Can use Time slot when resource grid represents 2, time each, time slot includes Resource Block (RB).This resource grid quilt It is divided into multiple resource element.In LTE, Resource Block comprises 12 coherent subcarriers in frequency domain, and And for the normal cyclic prefix in each OFDM symbol, comprise 7 coherent OFDM in time domain Code element, or i.e. comprise 84 resource elements.For extended cyclic prefix, Resource Block comprises in time domain 6 coherent OFDM symbol, and there are 72 resource elements.As being designated as certain of R 302,304 A little resource elements include downlink reference signal (DL-RS).DL-RS includes different because of cellular cell RS (CRS) (otherwise referred to as sharing RS) the 302 and RS (UE-RS) 304 different because of UE. UE-RS 304 is only on the Resource Block that corresponding physical down link sharing channel (PDSCH) be mapped to Transmit.The bit number carried by each resource element depends on modulation scheme.Therefore, the money that UE receives Source block is the most and modulation scheme is the highest, and the data transfer rate of this UE is the highest.

Fig. 4 is the diagram 400 of the example explaining orally the uplink frame structures in LTE.For up-link Available resource block is divided into data segments and controls section.Control section and may be formed at the two of system bandwidth Individual edge and can have configurable size.Control the Resource Block in section can be assigned to UE with Transmission in the information of control.Data segments can include that all being not included in controls the Resource Block in section.Should Uplink frame structures causes data segments to include contiguous subcarriers, and this can allow single UE to be assigned data All contiguous subcarriers in section.

UE can be assigned Resource Block 410a, the 410b controlled in section and control for transmitting to eNodeB Information.Resource Block 420a, 420b that UE also can be assigned in data segments transmits for eNodeB Data.UE can on the assigned Resource Block controlled in section Uplink Control Channel physically (PUCCH) control information is transmitted in.UE can on the assigned Resource Block in data segments physically Ink Shared Channel (PUSCH) only transmits data or transmits data and control both information.Uplink Road transmission may span across the two time slot of subframe, and can be across frequency agility.

Resource Block collection can be used for performing starter system in Physical Random Access Channel (PRACH) 430 and connects Enter and reach uplink synchronisation.PRACH 430 carries random sequence.Each Stochastic accessing preamble accounts for By the bandwidth corresponding with 6 coherent Resource Block.Initial frequency is specified by network.That is, before Stochastic accessing The transmission putting code is restricted to specific running time-frequency resource.PRACH is not existed to frequency hopping.PRACH tastes Examination is carried in single subframe (1ms) or in comprising several sequence adjoining subframe, and UE is every Frame (10ms) can only be made single PRACH and be attempted.

Fig. 5 is to explain orally in LTE for user and the diagram of the example of the radio protocol architecture of chain of command 500.Radio protocol architecture for UE and eNodeB is shown to have three layers: layer 1, layer 2 and layer 3.Layer 1 (L1 layer) is lowermost layer and realizes various physical layer signal process function.L1 layer will in this article It is referred to as physical layer 506.Layer 2 (L2 layer) 508 are above physical layer 506 and responsible UE and eNodeB Between link on physical layer 506.

In user face, L2 layer 508 includes medium education (MAC) sublayer 510, radio link Road controls (RLC) sublayer 512 and PDCP (PDCP) 514 sublayer, they Network side terminates at eNodeB.Although not shown, but UE can have some on L2 layer 508 Individual upper strata, be included in network side terminate in PDN Gateway 118 Internet (such as, IP layer) and Terminate in the application layer at the other end (such as, far-end UE, the server etc.) place of connection.

PDCP sublayer 514 provides the multiplexing between different radio carrying and logic channel.PDCP sublayer 514 also provide for the header suppression to upper layer data packet to reduce wireless radio transmission expense, by dividing data Group ciphering provides safety and provides the switching support between eNodeB for UE.RLC Layer 512 provides the segmentation to upper layer data packet and refitting, to the re-transmission of lost data packet and logarithm The reception that disorders caused due to mixed automatic repeat request (HARQ) with compensation of reordering according to packet.MAC Sublayer 510 provides the multiplexing between logic channel and transmission channel.Media access control sublayer 510 is also responsible at each UE Between distribute the various radio resources (such as, Resource Block) in a cellular cell.Media access control sublayer 510 It is also responsible for HARQ operation.

In the control plane, for the radio protocol architecture of UE and eNodeB for physical layer 506 and L2 Layer 508 for essentially identical, except chain of command does not has header suppression function.Chain of command also includes layer 3 (L3 Layer) in radio resource control (RRC) sublayer 516.RRC sublayer 516 is responsible for obtaining radio money RRC signaling between source (that is, radio bearer) and use eNodeB and UE configures each lower floor.

Fig. 6 is the block diagram that in access network, eNodeB 610 and UE 650 is in communication.In the downlink, Upper-layer packet from core net is provided to controller/processor 675.Controller/processor 675 realizes L2 layer functional.In the downlink, controller/processor 675 provide header suppression, ciphering, Packet segmentation and reorder, multiplexing between logic channel and transmission channel and based on various degrees of priority levels The radio resources allocation that amount is carried out to UE 650.Controller/processor 675 be also responsible for HARQ operation, The re-transmission of lost packets and the signaling to UE 650.

TX (transmitting) processor 616 realizes the various signal processing functions of L1 layer (that is, physical layer). These signal processing functions include coding and interweave with facilitate the forward error correction (FEC) at UE 650 and Based on various modulation schemes (such as, binary phase shift keying (BPSK), QPSK (QPSK), M phase-shift keying (PSK) (M-PSK), M quadrature amplitude modulation (M-QAM)) to reflecting that signal constellation (in digital modulation) is carried out Penetrate.Subsequently, encoded and modulation code element is split into parallel stream.Each stream is subsequently mapped into OFDM Subcarrier, in the time and/or frequency domain with reference signal (such as, pilot tone) multiplexing and use fast subsequently Speed inverse Fourier transform (IFFT) is grouped together to produce the physics letter carrying time-domain OFDM symbols stream Road.This OFDM flows by spatial pre-coding to produce multiple spatial flows.Carry out the letter of channel estimator 674 Road is estimated to be used to determine coding and modulation scheme and for spatial manipulation.This channel estimate can from by Reference signal and/or channel conditions feedback that UE 650 transmits are derived.Each spatial flow is subsequently via dividing The transmitter 618TX opened is provided to a different antenna 620.Each transmitter 618TX is with respective Spatial flow modulates RF carrier wave for transmission.

At UE 650, each receiver 654RX receives signal by its respective antenna 652.Often Individual receiver 654RX recovers the information modulated on RF carrier wave and provides this information to receiver (RX) processor 656.RX processor 656 realizes the various signal processing functions of L1 layer.RX process Device 656 performs spatial manipulation to recover any spatial flow with UE 650 as destination to this information.As Fruit has multiple spatial flow with this UE 650 as destination, then they can be combined into by RX processor 656 Single OFDM symbol stream.RX processor 656 uses fast Fourier transform (FFT) by this OFDM subsequently Code element stream transforms from the time domain to frequency domain.This frequency-region signal includes list to each subcarrier of this ofdm signal Only OFDM symbol stream.The signal constellation point being determined by most possibly being transmitted by eNodeB 610 is come extensive The code element answered and demodulate on each subcarrier and reference signal.These soft-decisions can be estimated based on by channel The channel that gauge 658 calculates is estimated.These soft-decisions be subsequently decoded by and deinterleave recovering by The data of the most original transmission of eNodeB 610 and control signal.These data and control signal with After be provided to controller/processor 659.

Controller/processor 659 realizes L2 layer.Controller/processor can be with storage program code sum According to memorizer 660 be associated.Memorizer 660 can be described as computer-readable medium.In the uplink, Controller/processor 659 provide the demultiplexing between transmission channel and logic channel, packet refitting, go ciphering, Head decompresses, control signal processes to recover the upper-layer packet from core net.These upper-layer packet with After be provided to data trap 662, the latter represents all protocol layers on L2 layer.Various control signals are also It is provided to data trap 662 to carry out L3 process.Controller/processor 659 is also responsible for using acknowledgement (ACK) and/or negative acknowledgement (NACK) agreement carry out error detection to support HARQ operation.

In the uplink, data source 667 is used to be supplied to upper-layer packet controller/processor 659. Data source 667 represents all protocol layers on L2 layer.Be similar to combine carried out by eNodeB 610 under Functional described by uplink transmission, controller/processor 659 by provide header suppression, ciphering, Packet segmentation and reorder and based on the radio resources allocation carried out by eNodeB 610 logic believe The multiplexing carried out between road and transmission channel, realizes the L2 layer of user face and chain of command.Controller/process Device 659 is also responsible for HARQ operation, the re-transmission of lost packets and the signaling to eNodeB 610.

Derived from the reference signal transmitted by eNodeB 610 or feedback by channel estimator 658 Channel is estimated to be used for selecting appropriate coding and modulation scheme and facilitating space by TX processor 668 Reason.The all spatial flows generated by TX processor 668 are supplied to different via separate transmitter 654TX Antenna 652.Each transmitter 654TX modulates RF carrier wave for transmission with respective spatial flow.

With similar with the receiver function manner described combined at UE 650 at eNodeB 610 Mode processes ul transmissions.Each receiver 618RX is received by its respective antenna 620 Signal.Each receiver 618RX recovers the information modulated on RF carrier wave and provides this information to RX processor 670.RX processor 670 can realize L1 layer.

Controller/processor 675 realizes L2 layer.Controller/processor 675 can be with storage program code It is associated with the memorizer 676 of data.Memorizer 676 can be described as computer-readable medium.In up-link In, controller/processor 675 provides the demultiplexing between transmission channel and logic channel, packet recombining, goes secretly Codeization, head decompress, control signal processes to recover the upper-layer packet from UE 650.Carry out automatic control The upper-layer packet of device/processor 675 processed is provided to core net.Controller/processor 675 is also responsible for making Error detection is carried out to support HARQ operation by ACK and/or NACK agreement.

Interference cancellation

When specifying transmission diversity for data transmission, multiple versions of identical data can be over multiple channels Transmitted.In order to realize launch diversity, each channel can according to time domain (such as, time slot or code element), One or more subregions in frequency domain (such as, subcarrier) define.Specifically, transmission diversity can lead to Cross the different editions using different resource elements to transmit these data to reach.Such as, the example of Fig. 3 is used Frame structure 300, when specifying transmission diversity, can use the different resource unit of frame 300 usually to transmit this number According to.

Additionally, transmission diversity is also by using identical resource element with different encoding schemes, antenna or biography Defeated direction is transmitted the different editions of these data and is reached.These data are usually transmitted when using identical resource element Different editions time, the wireless device receiving corresponding with the specific resources element in frame interference signal can Monitor that other resource elements are to find the different editions of same disturbance signal.This wireless device also can to identical or Different resource elements carries out monitoring to find this interference signal about other encoded or oriented channels Different editions.According to the one side of the disclosure, when wireless device determines, this interference signal is employed transmission point During collection, this wireless device can be combined this interference signal receive in version two or more with estimate and disappear Remove this interference signal.This wireless device can be the other type of receiver of UE, eNodeB or any.

Fig. 7 A and 7B is to illustrate for channel (such as Physical Hybrid ARQ Indicator channel (PHICH)) The block diagram of example of transmission diversity.Fig. 7 A explains orally the frame 700 that can receive at UE or base station A part.Frame 700 can be similar to the frame structure 300 described in the example of Fig. 3.In Fig. 7 A and 7B Code element can be OFDM symbol.

As Fig. 7 A explains orally, signal can in identical code element with different editions at different resource elements Transmit in Qun.The transmission diversity of Fig. 7 A is referred to alternatively as normally lasting transmission diversity.As shown in Figure 7 A, often One group (group 1, group 2 and group 3) is associated from the signal specific in different resource element groups.That is, Each group is associated with a signal specific, and the different editions of identical signal is each resource element group Middle transmission.

As shown in Figure 7 A, the first signal can the different resource groups of elements 702 of first group (group 1), Received in 708 and 714.Specifically, group of each resource element group 702,708 and 714 There is the different editions of the first signal.Additionally, secondary signal can be at the different resource of second group (group 2) Groups of elements 704,710 and 716 is received.Additionally, the 3rd signal can the 3rd group (group 3) no Received with in resource element group 706,712 and 718.

As Fig. 7 B explains orally, signal can be in different code-element periods and can also be in different resources Groups of elements transmits.The transmission diversity of Fig. 7 B is referred to alternatively as extension and lasts transmission diversity 750.Such as Fig. 7 B institute Show, each group (group 1, group 2 and group 3) and the signal specific transmitted in different resource element groups It is associated.That is, each group is associated with a signal specific and the different editions of this signal provides at each Source element group transmits.

As shown in Figure 7 B, the first signal can the different resource groups of elements 720 of first group (group 1), Received in 726 and 732.Each version in group 1 is received in different code-element periods.Different Resource element group 720,726 and 732 includes the different editions of the first signal.Additionally, secondary signal is permissible The different resource groups of elements 722,728 and 734 of second group (group 2) is received.Group 2 in each Individual version is received in different code-element periods.Additionally, the 3rd signal can be the 3rd group (group 3) Different resource groups of elements 724,730 and 736 is received.Each version in group 3 is at different codes Unit's cycle is received.

Normally lasting transmission diversity and extension lasts in transmission diversity, the different editions of interference signal can be Different resource element groups is received.Each version of interference signal can exist at identical code-element period Different resource element groups is received, or in different code-element periods and different resource element groups Middle received.In one configuration, wireless device may compare each version of this interference signal to determine these Whether interference signal is different editions each other.Determining based on this, wireless device can be combined these interference signals In two or more to eliminate and the signal correction of particular cluster (such as, group 1, group 2 or group 3) connection Interference.

As example, with reference to Fig. 7 B, the different editions of interference signal can be received at different time points. Therefore, the first version of the interference signal being associated with group 1 can be in the first ginseng during the first code-element period Examine and received at groups of elements 720.It addition, the second edition of interference signal can be during the second code-element period Received at the second reference element group 726.Additionally, the third edition of interference signal originally can be in third yard unit Received at the 3rd reference element group 732 during cycle.

In this example, each version of interference signal can be received during different code-element periods, Wherein each version of group is received in different reference element groups.In some cases, interference signal Different editions can be received at identical code-element period based on normally lasting transmission diversity scheme.At it In his situation, the different editions of interference signal be likely to be due to signal or channel conditions and at different time points Received.In other situations, interference signal different editions can substantially concurrently be received and It is processed according to certain order (such as, sequentially process or disorder process).Therefore, wireless device can be by Incoming interference signal is compared to determine the later all interference received with previously received interference signal Whether signal is each version of the first interference signal.Determining based on this, wireless device can be combined interference signal Different editions with eliminate receive interference signal in one or more.

Although with reference to receive interference signal diversity in time domain and frequency domain to explain Fig. 7 A and The example of 7B, but it will be appreciated by those skilled in the art that in the interference signal that UE or base station receive permissible There is the additionally or alternatively diversity in coding or direction (such as, beam shaping) territory.

Additionally, the above description of Fig. 7 A and Fig. 7 B elaborates that wireless device passes through the interference letter that will receive Number it is compared to each other the example of the use to transmission diversity identified in the interference signal received.But, this Description conceives additionally or alternatively aspect, and wherein wireless device uses adjunctively or alternatively method to identify interference letter Use to transmission diversity in number.In some examples, the source of interference can transmit to indicate and makes transmission diversity With and interference signal be how across the signal of various territories diversity.This signal can be intended to directly from interference source It is sent to wireless device.Additionally or alternatively, wireless device can monitor interference source with interference signal expection connect Communication between receipts person, to identify the source the disturbed use to transmission diversity.

In conventional transmitting diversity interference cancellation scheme, each version of interference signal is used solely as estimating Count this signal for interference cancellation.That is, in conventional transmitting diversity interference cancellation scheme, signal is disturbed Different editions be not combined to make Combined estimator and come for interference cancellation.In order to improve interference cancellation, The different editions of each side given combination interference code element of the disclosure is to carry out the associating for interference cancellation Estimate.

In one example, each version of interference code element can be based on PHICH channel each that interference occurs The position of individual resource element group determines.That is, each resource element group transmits identical PHICH not Same version.The position of these different resource element groups can be by carrying out the Physical Broadcast Channel that interference occurs Decode to determine that PHICH is that normal PHICH or extension PHICH determines.In this example, money The position of source element group can be normal based on PHICH or the honeycomb of extension PHICH and generation interference is little The ID in district determines.Correspondingly, each version can determine based on resource element group.

Fig. 8 A-8C is according to being carried out example in a wireless device by the transmission diversity scheme specified by interference source Property interference Signal estimation and the block diagram of cancellation.In in these examples each, to disturbing each of signal The reception of individual version illustrates with reference to receiving (Rx) timeline.Receive timeline to believe according to this interference Number different editions when be received at this wireless device indicate timing.Alternatively, timeline is received Can reflect that each of this interference signal receives version and be processed for the order of interference cancellation.

In one configuration, each version of interference signal can be received on a different channel.These Channel can be able to be distinguished based on various factors.In one configuration, each channel and different time-gap, different Frequency, different antennae port, different coding or a combination thereof of receiver are associated.

As shown in Figure 8 A, in one configuration, wireless device can perform the different editions to interference signal Hard combination 830 is to estimate and to eliminate interference.Wireless device can receive the first of interference signal in the very first time Version 802, receives the second edition 804 of interference signal, and receives in the 3rd time dry in the second time Disturb the third edition basis 806 of signal.Alternatively, each version 802-806 can be connect in the identical time Receive, and version 802-806 can be processed by certain order (all order as shown in Figure 8 A). In the configuration, hard combined interference cancellation 810 is designated as all of combined interference signal and receives version 802-806 is with estimated disturbance signal and generates interference cancellation signal.Interference cancellation signal can be used for eliminating and does Each disturbing signal receives version 802-806.That is, the hard combined interference cancellation of this configuration waits until and connects Just combine each interference signal after receiving all versions of interference signal to estimate for combining of interference cancellation to make Meter,.

As shown in Figure 8 B, in another configures, UE or base station can perform the different editions to interference signal The soft-combine 832 of 808-812 is to estimate and to eliminate interference.Being similar to the configuration of Fig. 8 A, wireless device can To receive in the very first time or to process the first version 808 of interference signal, receive or process dry in the second time Disturb the second edition 810 of signal, and receive or process the third edition basis 812 of interference signal in the 3rd time.

In the configuration, when the first version 808 disturbing signal is received or processes, soft-combine is disturbed Cancellation function 818 can be based only on the measurement to first version 808 and estimate for first version 808 Interference cancellation signal.It addition, when the second edition 810 is received or processes, soft-combine interference cancellation merit Energy 818 can be estimated for the second edition 810 in combination based on first version 808 and the second edition 810 Interference cancellation signal.In one configuration, this combination can be according to the signal to noise ratio (SNR) of version 808-812 Or other criterions are weighted.

Additionally, when third edition basis 812 is received or processes, soft-combine interference cancellation function 818 can base Combination in first version 808, the second edition 810 and third edition basis 812 is estimated for third edition basis 812 Interference cancellation.Thus, when receiving each version 808, soft-combine interference cancellation function 818 can The combination ending all versions that this time point has been received or had processed based on this interference signal is estimated Meter interference cancellation signal.In this respect, the estimation to interference cancellation signal elapses in time with each combination And incrementally improve.Soft-combine interference cancellation function 818 by identical processor or can be realized by processor Module perform.

As shown in Figure 8 C, in another configuration, UE or base station can perform to receive the difference of interference signal The segment bounds soft-combine 834 of version 822-826 is to estimate and to eliminate interference.It is similar to Fig. 8 A and 8B, UE Or base station can receive in the very first time or process the first version 822 of interference signal, receive in the second time Or process the second edition 824 disturbing signal, and receive or process the 3rd of interference signal in the 3rd time Version 826.When the first version 822 disturbing signal is received or processes, soft-combine interference cancellation merit Energy 820 can be based only on the measurement to first version 822 and estimate to disappear for the interference of first version 822 Remove signal.

It addition, in the configuration, when the second edition 824 disturbing signal is received or processes, UE Or base station can determine that the SNR of the second edition 824 or another quality metric are less than threshold value.Thus, UE or base Stand the negligible second edition 824 received, and soft-combine interference cancellation function 820 can be based on previously receiving To or the first version 822 that processed estimate the interference cancellation signal for the second edition.Additionally, when dry Disturb signal the third edition this 826 when being received or process, soft-combine interference cancellation function 820 can be based on the One version 822 and third edition basis 826 are estimated for this interference cancellation signal of 826 of the third edition.Join at this In putting, because the second edition 824 is not used for previous interference cancellation, so at combination first version 822 The second edition 824 is not used during with third edition basis 826.

In another configures, soft-combine interference cancellation function 818 can combine each version 808 to estimate to do These 826 few weightings of first version 822 and the third edition of when disturbing cancellation signal, the second edition 824 being compared, Rather than ignore the second edition 824 completely.In some cases, interference cancellation function 810,818,820 Each combination can weight according to signal quality or other criterions.

According to the one side of the disclosure, different combination options can be selected for different sights.Join at one In putting, combination can be based on the diversity type of the cellular cell that interference occurs.In another configures, combination can base In receiving power budget and/or receiving timeline requirement.Such as, in some cases, this interference can only be combined Two versions in three versions of signal, because being likely not to have enough abilities to combine three versions.? In another example, the combination to each version can come based on non-serving cells timeline or HARQ timeline Limit.

In one example, UE can be configured to decoding service cellular cell before the specific time PHICH.In this example, if UE receives three versions of interference signal, in the third edition originally it is then Being configured for situation about receiving after this special time of the PHICH of decoding service cellular cell Under, this UE can only combine two versions in the these three version of this interference signal.

Fig. 9 be each side based on the disclosure can by receive according to transmission diversity scheme interference signal The block diagram of the iterative process of example 900 that UE, base station or other wireless devices perform.Specifically, Fig. 9 It is shown in the buffer 905 at the different time points during process 900.Buffer 905 can store predetermined number The element of amount.In this example, buffer 905 stores three elements for the purposes.But, right Would is that for those of ordinary skill in the art it is readily apparent that buffer 905 can store any required The element of quantity.

This buffer can couple with sum block 910 communicatedly, and this sum block 910 is configured to buffer Each element in 905 is sued for peace for output to the interference Signal estimation/cancellation module in wireless device.That is, The output of sum block 910 can be used for the hard or soft-combine interference performed as described above with Fig. 8 A-8C describes and estimates Meter and cancellation.Storage element in a buffer can be to receive interference signal or the survey of treated version Amount.In one configuration, these measure log-likelihood ratio (LLR) and/or the interference signal being to disturb signal Estimation average.

As it is shown in figure 9, in the first stage, can be that each element initializes buffer 905 to store sky Value (such as 0).In second stage, the first of interference signal can will be received or process by wireless device First measurement " a " of version is stored in the primary importance of buffer.As it is shown in figure 9, in second stage The output of sum block 910 is the first measurement " a ".This output can be used for estimating the first interference cancellation signal, This first interference cancellation signal can be applied to the first version of this interference signal.

In the phase III, wireless device can be by of the second version receiving or processing to this interference signal Two measure " b " is stored in the second position of buffer 905.In the phase III, sum block 910 defeated Go out is that sum " a+b " is measured in the first measurement and second.The output of phase III can be used for estimation can be by It is applied to the second interference cancellation signal of the second edition of this interference signal.

In fourth stage, wireless device can be by of the 3rd version receiving or processing to this interference signal Three measure " c " is stored in the 3rd position of buffer 905.The output of fourth stage be the first measurement, Second measures and the 3rd measurement sum " a+b+c ".The output of fourth stage can disturbed Signal estimation and disappearing Go function for estimating to be applied to the 3rd interference cancellation signal of the third edition basis of this interference signal.? In another configuration, when specify firmly combine time, the output of fourth stage can be used for estimating for hard combination Interference cancellation signal.

After fourth stage, first round iteration can complete and can start second to take turns iteration.Take turns second In iteration, in the 5th stage, the 5th measurement of the first version of this interference signal " a ' " can be replaced slow Rush the first measurement " a " in the primary importance of device 905.Therefore, can estimate based on the 5th measure, second Measure and the 3rd the 4th interference cancellation signal measuring sum " a '+b+c ".

In the 6th stage, the 6th measurement of the second edition of this interference signal " b ' " can be replaced buffer The second measurement " b " in the second position in 905.In one configuration, the 6th measurement " b ' " second The second measurement in the second position is replaced after the application of interference cancellation signal.Therefore, the 5th interference cancellation letter Number it is based on the 5th measuring, the 6th measures and measure sum " a '+b '+c " with the 3rd.

In the 7th stage, this 7th measurement " c ' " of the third edition of this interference signal can be replaced buffer The 3rd measurement " c " in the 3rd position in 905.In one configuration, the 7th measurement " c ' " the 3rd The measurement in the 3rd position is replaced after the application of interference cancellation signal.Therefore, the 6th interference cancellation signal base In the 5th measuring, the 6th measure and measure sum " a '+b '+c ' " with the 7th.

Said process can proceed reach the iteration of predetermined wheel number or until meet stopping criterion.At some In situation, wireless device can based on power budget, process budget, time-constrain or other because of usually select change Generation wheel number.Along with the successive iteration of interference cancellation, interference signal removing from data can be improved.

Should be understood that in some examples, can be the combination of iterative combination specifying part fraction.Such as, summation Block 910 can be configured to weight each position in buffer 905 when creating summation.Weight can be based on Measured channel quality, signal quality or instruction and the spy being stored in buffer 905 of this interference signal Position another criterion of the signal integrity that the version in putting is associated.In one configuration, sum block 910 Can ignore in buffer 905 based on channel quality, signal quality or another measurement to signal integrity One or more positions.

Figure 10 explanation is used for the different editions method 1000 for interference cancellation of combined interference signal.? In frame 1002, wireless receiver receives the first interference signal.In frame 1004, wireless receiver receives the Two interference signals.Additionally, in frame 1006, wireless receiver determines whether the second interference signal is first The different editions of interference signal.If the second interference signal is the different editions of the first interference signal, then at frame In 1008, wireless receiver combination the first interference signal and the second interference signal are to estimate that at least one interference disappears Remove signal.If the second interference signal is not the different editions of the first interference signal, then in frame 1010, Signal estimation interference cancellation signal is disturbed for each.Namely be based on the first interference signal and estimate an interference Cancellation signal, and estimate another interference cancellation signal based on the second interference signal.In one configuration, nothing Line receiver can be the other type of wireless receiver of UE, eNodeB or any.

Figure 11 is the diagram of the hard-wired example explaining orally the device 1100 using processing system 1114. Processing system 1114 can be implemented as having by the bus architecture that represents of bus 1124 vague generalization ground.Depend on place The concrete application of reason system 1114 and overall design constraints, bus 1124 can include that any number of interconnection is total Line and bridger.Various electrical chains are connected together by bus 1124, including one or more processors and/or Hardware module is (by processor 1122, module 1102,1104,1106 and computer-readable medium 1126 Represent).Bus 1124 also can link other circuit various, such as timing source, ancillary equipment, manostat And management circuit, these circuit are well known in the art, and therefore will the most further retouch State.

This device includes the processing system 1114 coupleding to transceiver 1130.Transceiver 1130 is coupled to One or more antennas 1120.Transceiver 1130 make it possible to over a transmission medium with other device communications various. Processing system 1114 includes the processor 1122 coupleding to computer-readable medium 1126.Processor 1122 It is responsible for generality to process, including performing the software that is stored on computer-readable medium 1126.Software by Processor 1122 makes processing system 1114 perform the various functions described for any specific device when performing. Computer-readable medium 1126 may be additionally used for storing the number handled by processor 1122 when performing software According to.

Processing system 1114 includes the receiver module 1102 for receiving the first interference signal.Receiver module 1102 also can receive the second interference signal.In one configuration, can receive each by receiver module respectively Individual interference signal (not shown).Processing system 1114 also includes for determining that whether the second interference signal is The version of the different editions of the first interference signal determines module 1104.Processing system 1114 also can be wrapped for group Close the first interference signal and the second interference signal to estimate the composite module of at least one interference cancellation signal 1106.In response to version, composite module 1106 determines that module 1104 determines that the second interference signal is the first interference The different editions of signal combines these interference signals.Each module can be run in processor 1122 Software module, resident/to be stored in the software module in computer-readable medium 1126, coupled to processor 1122 One or more hardware modules or its certain combination.Processing system 1114 can be UE 650 or The assembly of eNodeB 610, and memorizer 660,646 and/or controller/processor 659,675 can be included.

In one configures, eNodeB 610 is configurable for radio communication, and it includes for reception Device.In the one side of the disclosure, receive device and can be arranged to perform by the merit of this reception device narration Reception processor 670, demodulator 618, controller/processor 675, memorizer 676 and/or the antenna of energy 620.ENodeB 610 is configured to include the device for determining.In an aspect of this disclosure, really Determine device can be arranged to perform by this determine function that device describes controller/processor 675 and/or Memorizer 676.ENodeB 610 is additionally configured to include the device for combination.In an aspect of this disclosure In, combination unit can be arranged to the controller/processor 675 of the function that execution is described by this combination unit And/or memorizer 676.In another aspect of the present disclosure, aforementioned means can be arranged to perform by aforementioned Any module of the function of device narration or any device.

In one configuration, UE 650 is configured for radio communication, and it includes means for receiving. In the one side of the disclosure, receive device and can be arranged to execution connecing by the function of this reception device narration Receive processor 656, controller/processor 659, memorizer 660, manipulator 654 and/or antenna 652. UE 650 may be additionally configured to include determining device.In an aspect of this disclosure, determine that device is permissible It is arranged to perform controller/processor 659 and/or the memorizer 660 being determined function that device describes by this. UE 650 may be additionally configured to include combination unit.In an aspect of this disclosure, combination unit is permissible It is arranged to controller/processor 659 and/or the memorizer 660 of the function that execution is described by this combination unit. In another aspect of the present disclosure, aforementioned means can be arranged to the function performing to be described by aforementioned means Any module or any device.

Those skilled in the art will further appreciate that, in conjunction with described various illustrative logics disclosed herein Frame, module, circuit and algorithm steps can be implemented as electronic hardware, computer software or both groups Close.For clearly explaining orally this interchangeability of hardware and software, above with its functional form one As change describe various illustrative components, frame, module, circuit and step.This type of is functional by reality The design constraint specifically applying and being added to total system is now depended on for hardware or software.Technical staff can Realize described functional by different way for every kind of application-specific, but this type of realize decision-making should be by It is read as causing a departure from the scope of the present invention.

In conjunction with various illustrative boxes, module and the circuit of description disclosed herein can use general processor, Digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) Or other PLDs, discrete door or transistor logic, discrete nextport hardware component NextPort or its design Any combination becoming to perform function described herein realizes or performs.General processor can be micro-process Device, but in alternative, processor can be the processor of any routine, controller, microcontroller, Or state machine.Processor is also implemented as the combination of calculating equipment, such as DSP and microprocessor One or more microprocessors that combination, multi-microprocessor and DSP core are collaborative or any other this Class configures.

Can be embodied directly in hardware, in perform by processor in conjunction with the method for description disclosed herein or the step of algorithm Software module in or in combination of the two implement.Software module can reside in RAM memory, Flash memory, ROM memory, eprom memory, eeprom memory, depositor, hard disk, can In the storage medium of any other form moving dish, CD-ROM or known in the art.Exemplary deposit Storage media is coupled to processor so that this processor can be from/to this storage medium reading writing information.Alternatively, deposit Storage media can be integrated into processor.Processor and storage medium can reside in ASIC.ASIC can Resident in the user terminal.Alternatively, processor and storage medium can reside in user eventually as discrete assembly In end.

In one or more exemplary design, described function can hardware, software, firmware, Or its any combination realizes.If realized in software, the most each function can be as one or more instruction Code storage on a computer-readable medium or mat its transmit.Computer-readable medium includes computer Storage medium and communication media, including any Jie facilitating computer program to transmit to another ground from a ground Matter.Storage medium can be any usable medium that can be accessed by a general purpose or special purpose computer.As example Non-limiting, such computer-readable medium can include RAM, ROM, EEPROM, CD-ROM Or other optical disc storage, disk storage or other magnetic storage apparatus, maybe can be used to carry or store instruction or The expectation program code means of data structure form and can be by universal or special computer or universal or special Any other medium that processor accesses.Any connection is also properly termed a computer-readable medium.Such as, If software is to use coaxial cable, fiber optic cables, twisted-pair feeder, numeral subscriber's line (DSL) or such as The wireless technology of infrared, radio and microwave etc is from web site, server or other remote source Transmit, then this coaxial cable, fiber optic cables, twisted-pair feeder, DSL or the most infrared, radio, And the wireless technology of microwave etc is just included among the definition of medium.Dish as used herein (disk) and dish (disc) include compact disc (CD), laser dish, laser disc, digital versatile dish (DVD), Floppy disk and blu-ray disc, its mid-game the most magnetically reproduces data, and dish laser reproduces data optically. Combinations of the above also should be included within the scope of computer readable media.As (included claim herein In) used, the project of " at least one " is enumerated the "or" instruction of middle use and is extracted being connected to Formula is enumerated so that such as " at least one in A, B or C " enumerate expression A or B or C or AB or AC or BC or ABC (that is, A and B and C).

Thering is provided of this disclosure being previously described is for making any person skilled in the art all can make or make Use the disclosure.Various amendment of this disclosure the most all will be apparent from, and The generic principles defined herein can be applied to other variants without departing from the spirit of the disclosure or model Enclose.Thus, the disclosure is not intended to be limited to example described herein and design, but should be awarded Give the widest scope consistent with principle disclosed herein and novel features.

Claims

1. the method being carried out radio communication by wireless device in a wireless communication system, including:

The first interference signal is received at receiver；

The second interference signal is received at described receiver；

Determine that whether described second interference signal and described first interference signal are the differences of same interference signal Version；And

When described second disturbs the different editions that signal and described first interference signal are same interference signal Combine described first interference signal and described second interference signal to estimate interference cancellation signal.

2. the method for claim 1, it is characterised in that farther include to disappear estimated interference Signal is gone to be applied to interference cancellation process.

3. the method for claim 1, it is characterised in that farther include:

When described second disturbs the different editions that signal and described first interference signal are same interference signal, By with the first value of described first interference signal correction connection and with the of described second interference signal correction connection Two-value is stored in the buffer being associated with described receiver；

Wherein said interference cancellation signal is based at least partially on described first value and the combination of described second value.

4. method as claimed in claim 3, it is characterised in that farther include:

It is based at least partially on described interference cancellation signal and updates stored the first value and second iteratively Value；And

It is based at least partially on updated storage value and generates at least another interference cancellation signal.

5. method as claimed in claim 3, it is characterised in that farther include:

Optionally the first value stored and second are worth during the generation of described interference cancellation signal into The weighting that row is proportional to the signal to noise ratio of this interference signal.

6. the method for claim 1, it is characterised in that farther include to be based at least partially on mark Know transmission diversity type, at least one receive interference the signal quality of signal, power budget, time about Bundle or a combination thereof optionally combine described first interference signal and described second interference signal to generate institute State interference cancellation signal.

7. the method for claim 1, it is characterised in that farther include:

Indicator signal is received from the source of described first interference signal and described second interference signal；And

It is based at least partially on described indicator signal to determine described second interference signal and described first dry Disturb the different editions that signal is same interference signal.

8. the method for claim 1, it is characterised in that described receiver is subscriber's installation (UE) Or base station.

9. method as claimed in claim 8, it is characterised in that the source of described first interference signal is another Base station or another UE.

10. the method for claim 1, it is characterised in that farther include:

Receive described first interference signal on the first channel；And

Receive described second interference signal on a second channel.

11. the method for claim 1, it is characterised in that further include at described in receiving Estimate that another interference cancellation is believed after first interference signal and before receiving described second interference signal Number.

12. the method for claim 1, it is characterised in that farther include:

Determine whether the signal quality of described second interference signal is more than or equal to threshold value,

Wherein:

First interference signal described in when described signal quality is more than or equal to described threshold value and described second dry Disturb signal to be combined；And

First interference signal described in when described signal quality is less than described threshold value and the weighted second interference Signal is combined.

13. 1 kinds of device for wireless communications, including:

Memorizer；And

Being coupled at least one processor of described memorizer, at least one processor described is configured to:

The first interference signal is received at receiver；

The second interference signal is received at described receiver；

14. devices as claimed in claim 13, it is characterised in that at least one processor quilt described It is further configured to estimated interference cancellation signal is applied to interference cancellation process.

15. devices as claimed in claim 13, it is characterised in that at least one processor quilt described Be further configured to when described second disturb signal and described first interference signal be same interference signal not To be worth and disturb signal phase with described second with the first of described first interference signal correction connection with during version Second value of association is stored in the buffer being associated with described receiver this；And

16. devices as claimed in claim 15, it is characterised in that at least one processor quilt described It is further configured to

17. devices as claimed in claim 15, it is characterised in that at least one processor quilt described Be further configured to during the generation of described interference cancellation signal optionally to the first value stored and Second value carries out the weighting proportional to the signal to noise ratio of this interference signal.

18. devices as claimed in claim 13, it is characterised in that at least one processor quilt described Be further configured to be based at least partially on identify transmission diversity type, at least one receive interference signal Signal quality, power budget, time-constrain or a combination thereof optionally combine described first interference signal With described second interference signal to generate described interference cancellation signal.

19. devices as claimed in claim 13, it is characterised in that at least one processor quilt described It is further configured to

20. devices as claimed in claim 13, it is characterised in that described receiver is subscriber's installation Or base station (UE).

21. devices as claimed in claim 20, it is characterised in that the source of described first interference signal It is another base station or another UE.

22. devices as claimed in claim 13, it is characterised in that at least one processor quilt described It is further configured to

Receive described first interference signal on the first channel；And

Secondary signal receives described second interference signal.

23. devices as claimed in claim 13, it is characterised in that at least one processor quilt described It is further configured to after receiving described first interference signal and is receiving described second interference letter Another interference cancellation signal was estimated before number.

24. devices as claimed in claim 13, it is characterised in that at least one processor quilt described It is further configured to

Wherein:

25. 1 kinds of equipment for radio communication, including:

For receiving the device of the first interference signal at receiver；

For receiving the device of the second interference signal at described receiver；

Whether it is same interference signal for determining described second interference signal and described first interference signal The device of different editions；And

For at described second interference signal and described first interference signal being the different versions of same interference signal In this time, combines described first interference signal and described second interference signal to estimate the device of interference cancellation signal.