CN102480343B - The processing method of back haul link ACK/NACK information and system - Google Patents
The processing method of back haul link ACK/NACK information and system Download PDFInfo
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- CN102480343B CN102480343B CN201010556467.6A CN201010556467A CN102480343B CN 102480343 B CN102480343 B CN 102480343B CN 201010556467 A CN201010556467 A CN 201010556467A CN 102480343 B CN102480343 B CN 102480343B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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Abstract
Does the invention discloses a kind of processing method and system of back haul link ACK/NACK information, the method comprise: RN determines according to the configuration instruction of back haul link information and/or network side the tupe from back haul link uplink ACK/nack message to network side and the PUCCH that send? format; Is network side according to the tupe of back haul link information and/or back haul link uplink ACK/nack message and/or PUCCH? format is that relay station configures one or more UnPUCCH resource; Does relay station use tupe and PUCCH? does format process to sent back haul link uplink ACK/nack message, and uses the Un of configuration? PUCCH resource is to the back haul link uplink ACK/nack message after network side transmission processing.Invention achieves the effect using back haul link to send ACK/NACK information.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of processing method and system of back haul link confirmation/non-acknowledgement (ACK/NACK) information.
Background technology
Relaying (Relay) technology, as a kind of emerging technology, has caused and has noted more and more widely, is regarded as the key technology of accurate three generations/forth generation (B3G/4G).Because future wireless system or cellular system require to improve the network coverage, support higher rate transmission, this proposes new challenge to wireless communication technology.Meanwhile, the cost issues of system building and maintenance is also more outstanding.Along with the increase of transmission rate and communication distance, the energy consumption issues of battery also becomes outstanding, and the radio communication in future will adopt higher frequency, and the pathloss attenuation caused thus is also more serious.By relaying technique, traditional one hop link can be divided into multiple multi-hop link, the shortening of distance greatly will reduce path loss, contribute to improving transmission quality, expand communication range, thus provide quicker better service for user.
At introducing relay station (RelayNode, referred to as RN) network in, as shown in Figure 1, evolved base station (eNB) and macrocell user (MacroUserEquipment, M-UE) link between is called the link that direct transfers (DirectLink), link between eNB and RN is called back haul link, also referred to as Un interface, link between RN and relay domain user (RelayUserEquipment, referred to as R-UE) is called access link (AccessLink).
Direct transferring on link, Physical Uplink Control Channel (the PhysicalUplinkControlChannel of M-UE, referred to as PUCCH) on the information that can carry have: dispatch request (Schedulingrequest, referred to as SR), HARQ feedback information (namely M-UE to eNB at Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, referred to as PDSCH) the data receiver situation that sends carries out ACK/NACK feedback), and channel quality reporting (comprises CQI (ChannelQualityIndicator, channel quality indicates), PMI (PrecodingMatrixIndicator, pre-coding matrix indicates), RI (RankIndication, order indicates)).M-UE adopts corresponding Physical Uplink Control Channel form to ascending control information (UplinkControlInformation according to different situations such as ascending control information content to be reported, PUCCH emission modes, referred to as UCI) information carry out process map, and at configured transmitted on resources, PUCCH format comprises: PUCCHformat1/1a/1b, PUCCHformat2/2a/2b, PUCCHformat3.Wherein, PUCCHformat1a/1b (comprising the PUCCHformat1a/1b of channel selective mode) and PUCCHformat3 may be used for loading ACK/nack message, PUCCHformat2/2a/2b may be used at the same time transmit channel quality report when, multiplexing loading ACK/nack message.
At Long Term Evolution (Long-TermEvolution, referred to as LTE) time division duplex (TimeDivisionDuplex, referred to as TDD) in system, 7 kinds of different uplink and downlink sub-frame configuration are had to 10ms radio frames, be respectively TDD uplink/downlink configuration #0-6 (TDDUL/DLConfiguration#0-#6), uplink and downlink subframe in the lower each radio frames of different configuration and the quantity of special subframe and position configuration different, as shown in table 1.Wherein, " D " represents descending sub frame, and " U " represents sub-frame of uplink, and " S " represents special subframe.
Table 1Uplink-downlinkconfigurations
Due to the quantity asymmetry of uplink and downlink subframe in TDD system, need the ACK/NACK information carried on a sub-frame of uplink multiple descending sub frame transfer of data, as shown in table 2.The downlink transfer at down link (Downlink, referred to as DL) subframe #n-k is corresponded to, k ∈ { k in the ACK/NACK information of up link (Uplink, referred to as UL) subframe #n feedback
0... ..k
m-1.
Table 2DownlinkassociationsetindexK:{k
0, k
1... k
m-1forTDD
In table 2, for the K:{k that any UL subframe comprises
0, k
1... k
m-1, M wherein represents the maximum ACK/NACK information content carried of this UL subframe, the maximum downstream sub-frame number that namely this UL subframe is corresponding.The ACK/NACK packets of information that every descending sub frame is corresponding contains 1 or 2bit, and wherein each bit feedback information corresponds to a transmission block (TransportBlock, referred to as TB) of DL sub-frame transmission, is also a corresponding code word (codeword).
Because the bearing capacity of PUCCHformat1a/1b to information is limited, in a tdd system two kinds of modes are divided into the process of ACK/NACK information: binding (Bundling) mode and multiplexing (Multiplexing) mode.
ACK/NACKbundling processing mode refers between M item ACK/NACK information, in units of codeword, AND-operation is carried out to feedback information, obtain the ACK/NACK information sequence after bundling, and then adopt PUCCHformat1a/1b to carry out process mapping again.
ACK/NACKmultiplexing processing mode refers to carries out AND-operation by the every ACK/NACK information corresponding to different DL subframe respectively in units of subframe, and press the cascade of DL ordering of sub-frames, form the ACK/NACK information sequence after multiplexing, and then adopt the PUCCHformat1b of channel selective mode to carry out process mapping.
Concerning back haul link, multiple back haul link uplink and downlink sub-frame configuration UnUL/DLSub-config is also there is further under each TDDUL/DLConfig, as shown shown in 3-7, table 3 is the UnUL/DLSub-config to TDDUL/DLConfig#1, table 4 is the UnUL/DLSub-config to TDDUL/DLConfig#2, table 5 is the UnUL/DLSub-config to TDDUL/DLConfig#3, table 6 is the UnUL/DLSub-config to TDDUL/DLConfig#4, and table 7 is the UnUL/DLSub-config to TDDUL/DLConfig#6.Wherein, down link: the UnDL/UL subframe ratio of uplink proportion (DL:ULratio) expression configuration, is configured to UnUL subframe in corresponding subframe position mark " U " expression, and mark " D " expression is configured to UnDL subframe.Concrete TDDUL/DLConfig and UnUL/DLSub-config that network side adopts high-level signaling configuration instruction RN to use.
Table 3UnUL/DLSub-configforTDDUL/DLConfig#1
Table 4UnUL/DLSub-configforTDDUL/DLConfig#2
Table 5UnUL/DLSub-configforTDDUL/DLConfig#3
Table 6UnUL/DLSub-configforTDDUL/DLConfig#4
Table 7UnUL/DLSub-configforTDDUL/DLConfig#6
Backhaul link subframe configuration is different from the link that direct transfers, and back haul link has good link condition simultaneously, can adopt feedback information mode more accurately.The concrete processing method of back haul link ACK/NACK information in TDD system is not had in current correlation technique.
Summary of the invention
Main purpose of the present invention is the processing scheme providing a kind of back haul link ACK/NACK information, at least to solve the problem.
According to an aspect of the present invention, provide a kind of processing method of back haul link ACK/NACK information, comprise: relay station RN indicates according to the configuration of back haul link information and/or network side the tupe from back haul link uplink ACK/nack message to network side and the Physical Uplink Control Channel form PUCCHformat that determine to send, wherein, back haul link information comprise following one of at least: back haul link is descending/sub-frame of uplink allocation ratio, backhaul link subframe configures, back haul link downlink data transmission pattern, the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, back haul link PUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink, network side is that relay station configures one or more back haul link Physical Uplink Control Channel UnPUCCH resource according to the tupe of back haul link information and/or back haul link uplink ACK/nack message and/or PUCCHformat, relay station uses tupe and PUCCHformat to process to sent back haul link uplink ACK/nack message, and uses the UnPUCCH resource of configuration to the back haul link uplink ACK/nack message after network side transmission processing.
According to a further aspect in the invention, provide a kind for the treatment of system of back haul link ACK/NACK information, comprise: relay station RN, for determining according to the configuration instruction of back haul link information and/or network side the tupe from back haul link uplink ACK/nack message to network side and the Physical Uplink Control Channel form PUCCHformat that send, wherein, back haul link information comprise following one of at least: back haul link is descending/sub-frame of uplink allocation ratio, backhaul link subframe configures, back haul link downlink data transmission pattern, the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, back haul link PUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink, and use tupe and PUCCHformat to process to sent back haul link uplink ACK/nack message, use the UnPUCCH resource of network side configuration to the back haul link uplink ACK/nack message after network side transmission processing, network side, for being that relay station configures one or more back haul link Physical Uplink Control Channel UnPUCCH resource according to the tupe of back haul link information and/or back haul link uplink ACK/nack message and/or PUCCHformat.
Pass through the present invention, RN is adopted to determine to send tupe and the PUCCHformat of back haul link uplink ACK/nack message, network side is that relay station distributes UnPUCCH resource, RN is according to above-mentioned tupe and PUCCHformat process uplink ACK/nack message, and send ACK/NACK information by the UnPUCCH resource of distributing, solve in correlation technique the problem of the processing method not having back haul link ACK/NACK information in TDD system, and then reach the effect that back haul link can be used to send ACK/NACK information.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the junction network structural representation according to correlation technique;
Fig. 2 is the flow chart of the processing method of back haul link ACK/NACK information according to the embodiment of the present invention;
Fig. 3 is the Bundling pattern process schematic diagram according to the embodiment of the present invention;
Fig. 4 is the Multiplexing pattern process schematic diagram according to the embodiment of the present invention;
Fig. 5 is the cascade mode processing procedure schematic diagram according to the embodiment of the present invention;
Fig. 6 be according to the network side of the embodiment of the present invention be RN configuration n PUCCH resource be the schematic diagram of continuous resource;
Fig. 7 be according to the network side of the embodiment of the present invention be RN configuration n PUCCH resource be the schematic diagram be spacedly distributed;
Fig. 8 is the structured flowchart of the treatment system of back haul link ACK/NACK information according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment one
Embodiments provide a kind of processing method of back haul link ACK/NACK information, Fig. 2 is the flow chart of the processing method of ACK/NACK information in the back haul link according to the embodiment of the present invention, and as shown in Figure 2, the method comprises:
Step S202, relay station determines according to the configuration instruction of back haul link information and/or network side the tupe from back haul link uplink ACK/nack message to network side and the Physical Uplink Control Channel form PUCCHformat that send, wherein, back haul link information comprise following one of at least: back haul link is descending/sub-frame of uplink allocation ratio (UnDL/ULratio), backhaul link subframe configuration (UnUL/DLSub-config), back haul link downlink data transmission pattern, the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, UnPUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink, network side is corresponding one or more back haul link Physical Uplink Control Channel (UnPUCCH) resource of relay station configuration according to the tupe of back haul link information and/or back haul link uplink ACK/nack message and/or PUCCHformat.
Preferably, relay station is maximum on current back haul link sub-frame of uplink carries back haul link uplink ACK/nack message corresponding to M downlink subframes in return link, wherein, M be more than or equal to 1 integer.
Preferably, PUCCHformat can comprise following one of at least: PUCCHformat1a or 1b, PUCCHformat1a or 1b of channel selective mode, PUCCHformat2 or 2a or 2b, PUCCHformat3.
Wherein, above-mentioned tupe comprise following one of at least: binding Bundling pattern, multiplexing Multiplexing pattern, cascade mode.Below this Three models is described respectively.
Bundling pattern is: back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link is carried out logical "and" operation by code word by relay station, form the back haul link uplink ACK/nack message after binding process, wherein, M be more than or equal to 1 integer.Wherein, the back haul link uplink ACK/nack message after binding process can be 1 or 2 bits.
If relay station have employed Bundling mode treatment back haul link uplink ACK/nack message to be sent, then PUCCHformat can adopt the PUCCHformat1a of PUCCHformat1a or 1b or channel selective mode.If back haul link uplink ACK/nack message that relay station adopts Bundling mode treatment to be sent, and, current back haul link sub-frame of uplink needs reporting channel quality indicate CQI and/or pre-coding matrix instruction PMI and/or order instruction RI information, then PUCCHformat can adopt PUCCHformat2 or 2a or 2b.
Multiplexing pattern is: the ACK/NACK information of the different code words of corresponding same subframe in back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link is carried out logical "and" operation by relay station, and the information bit after AND-operation is connected successively according to the order of downlink subframes in return link form the back haul link uplink ACK/nack message after multiplexing process, wherein, M be more than or equal to 1 integer, the back haul link uplink ACK/nack message after multiplexing process can be M-bit.
If back haul link uplink ACK/nack message that relay station adopts Multiplexing mode treatment to be sent, then PUCCHformat can adopt PUCCHformat1a or 1b, or PUCCHformat1a or 1b of channel selective mode, or adopt PUCCHformat3.If back haul link uplink ACK/nack message that relay station adopts Multiplexing mode treatment to be sent, and need to report CQI and/or PMI and/or RI information on current back haul link sub-frame of uplink, then PUCCHformat can adopt PUCCHformat2 or 2a or 2b.
Cascade mode is: back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link to be connected the back haul link uplink ACK/nack message after forming L bit cascade process according to the order of downlink subframes in return link by relay station successively, wherein, M and L is the integer being more than or equal to 1, and the span of L is 1≤L≤2M.
If back haul link uplink ACK/nack message that relay station adopts cascade mode process to be sent, then PUCCH format can adopt PUCCHformat1a or 1b or for channel selective mode PUCCHformat1a or 1b or be PUCCHformat3.
Preferably, relay station determines according to the configuration instruction of network side the tupe and the Physical Uplink Control Channel PUCCHformat that send back haul link uplink ACK/nack message.By one or more according in following factors of network side: UnDL/ULratio, UnUL/DLSub-config, back haul link downlink data transmission pattern, the downlink subframes in return link quantity M that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, UnPUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink, the tupe that configuration instruction RN uses in back haul link reporting uplink ACK/NACK information and PUCCHformat, and indicate corresponding UnPUCCH resource for RN configures.Relay station, according to the above-mentioned configuration instruction of network side, uses tupe and the PUCCHformat process back haul link uplink ACK/nack message of instruction, and is carried in configured UnPUCCH resource and reports to network side.
Preferably, relay station determines according to back haul link information the tupe and the Physical Uplink Control Channel PUCCHformat that send back haul link uplink ACK/nack message.Back haul link information comprises following one or more: UnDL/ULratio, UnUL/DLSub-config, back haul link downlink data transmission pattern, the downlink subframes in return link quantity M that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, UnPUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink.Further, network side is the corresponding UnPUCCH resource of RN configuration instruction.Relay station according to back haul link information according to determined tupe and PUCCHformat process back haul link uplink ACK/nack message, and be carried on network side configuration UnPUCCH resource on report to network side.
Preferably, relay station determines according to the configuration instruction of back haul link information and network side the tupe and the Physical Uplink Control Channel PUCCHformat that send back haul link uplink ACK/nack message.Back haul link information comprises following one or more: UnDL/ULratio, UnUL/DLSub-config, back haul link downlink data transmission pattern, the downlink subframes in return link quantity M that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, UnPUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink.RN determines the tupe that back haul link uplink ACK/nack message uses and PUCCHformat according to the configuration instruction of back haul link information and network side.Network side is the corresponding UnPUCCH resource of RN configuration instruction.Relay station according to determined tupe and PUCCHformat process back haul link uplink ACK/nack message, and is carried in configured UnPUCCH resource and reports to network side.
Preferably, network side can pass through wireless heterogeneous networks (RadioResourceControl, referred to as RRC) message be relay station configuration n UnPUCCH resource index, wherein, n be more than or equal to 1 integer.
Preferably, network side be relay station configuration n PUCCH resource be continuous print, or network side be relay station configure n UnPUCCH resource between be spacedly distributed, wherein, described n be more than or equal to 1 integer.
Preferably, network side is relay station configuration n PUCCH resource, wherein, n by network side according to back haul link descending/sub-frame of uplink allocation ratio UnDL/ULratio and/or back haul link UnPUCCH emission mode determine, n be more than or equal to 1 integer.
Preferably, network side is that RN configures n UnPUCCH resource index, and n is determined by one or more in following factor: UnDL/ULratio, UnUL/DLSub-config, UnPUCCH emission mode, the tupe of ACK/NACK information, PUCCHformat.
Step S204, the tupe determined in relay station use step S202 and PUCCHformat process to sent back haul link uplink ACK/nack message, and use the UnPUCCH resource of configuration to the back haul link uplink ACK/nack message after network side transmission processing.
Above-mentioned network side can comprise following one of at least: base station is (such as, eNB), relay station, cell cooperative entity MCE, gateway (Gateway, referred to as GW), mobile management (MobileManagementEntity), referred to as MME), Evolved UTRAN (EvolvedUniversalMobileTelecommunicationSystemRadioAccess Network, referred to as EUTRAN), operational administrative and safeguard (OperationAdministrationandMaintenance, referred to as OAM) manager.
The processing method of back haul link uplink ACK/nack message in the TDD system that the embodiment of the present invention proposes, effectively can realize reporting uplink ACK/nack message in the asymmetric sub-frame configuration situation of back haul link, reach and make full use of back haul link condition, more the effect of accurate feedback ACK/NACK information.
Embodiment two
In following application example, the implementation procedure of configuration controlled entity to the embodiment of the present invention for eNB as network side is described.
In a tdd system, indicate RN back haul link uplink and downlink sub-frame configuration by eNB, institute configures the UnUL/DLSub-config of use.Wherein, UnUL/DLSub-config can be divided into different lists and layout sequence number by different TDDUL/DLConfig, that is, show shown in 3-7, also UnUL/DLSub-config corresponding for all TDDUL/DLConfig can be arranged in a list and serialization number, as shown in table 8.Under above-mentioned two kinds of modes, different sequence number corresponding relations is existed to same UnUL/DLSub-config, but do not affect the use of the embodiment of the present invention, in the examples below that, in the first manner for example is described, namely according to table 3-7 different lists is divided into different TDDUL/DLConfig and corresponding sequence number illustrates.
Table 8UnUL/DLSub-config
Correspondingly, when RN uses the UnUL/DLSub-config configured at back haul link, the ratio of UnDL sub-frame number and UnUL sub-frame number, namely DL/ULrati=M: 1, then need to carry M the corresponding ACK/NACK feedback information of UnDL subframe in a UnUL subframe, the M i.e. maximum ACK/NACK information content carrying corresponding downlink subframes in return link on back haul link sub-frame of uplink for this reason.
RN determines the tupe of ACK/NACK information to be reported and the PUCCHformat of use according to the configuration instruction of back haul link information and/or eNB, back haul link information comprise following one of at least: UnDL/ULratio, UnUL/DLSub-config, back haul link downlink data transmission pattern, M value, UnPUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink.
RN adopts single antenna or multi-antenna transmission diversity mode to launch UnPUCCH, eNB according to the configuration of eNB can configure corresponding UnPUCCH resource for RN.RN is mapped in distributed UnPUCCH resource, reports according to configured emission mode to eNB after ACK/NACK information corresponding for M to be reported UnDL subframe is used corresponding pattern and PUCCHformat process.
RN is respectively back haul link uplink ACK/adoptable Three models of nack message process:
Bundling pattern, comprising: back haul link uplink ACK/nack message corresponding for a M to be reported downlink subframes in return link is carried out logical "and" operation by code word, forms the back haul link uplink ACK/nack message after 1 or 2bitsBundling process.
Particularly, M item back haul link uplink ACK/nack message that M UnDL subframe is corresponding is respectively
i=0,1, m=0,1 ..., M-1, wherein, when back haul link downlink data transmission adopts single current, i=0, when adopting stream transmission, i=0,1, m corresponding M item ACK/NACK information.This M item ACK/NACK information is carried out logical "and" operation by code word successively, forms the ACK/NACK information b after Bundling process
i, then as i=0,
work as i=0, when 1, b
0, b
1for
as shown in Figure 3.
Multiplexing pattern, comprise: by back haul link uplink ACK/nack message corresponding for a M to be reported downlink subframes in return link, the ACK/NACK information of the different code words of same for correspondence subframe is carried out logical "and" operation, and connect successively according to the order of downlink subframes in return link, form the back haul link uplink ACK/nack message after MbitsMultiplexing process.
Particularly, M item back haul link uplink ACK/nack message that M UnDL subframe is corresponding is respectively
i=0,1, m=0,1 ..., M-1, wherein, when back haul link downlink data transmission adopts single current, i=0, when adopting stream transmission, i=0,1, m corresponding M item ACK/NACK information.Logical "and" operation is carried out to every ACK/NACK information, namely 1bits feedback information is formed to every UnDL subframe, then according to UnDL ordering of sub-frames, Mbits is connected, form the ACK/NACK information b after Multiplexing process
m, m=0,1 ..M-1, then as i=0,
work as i=0, when 1, b
mfor
as shown in Figure 4.
Cascade mode, comprise: back haul link uplink ACK/nack message corresponding for a M to be reported downlink subframes in return link is connected successively according to corresponding downlink subframes in return link order, form the back haul link uplink ACK/nack message after Lbits compression process, wherein, 1≤L≤2M.
Particularly, M item back haul link uplink ACK/nack message that M UnDL subframe is corresponding is respectively
i=0,1, m=0,1 ..., M-1, wherein, when back haul link downlink data transmission adopts single current, i=0, when adopting stream transmission, i=0,1, m corresponding M item ACK/NACK information.According to UnDL ordering of sub-frames, this M item ACK/NACK information is connected, form the ACK/NACK information b after cascade process
m, m=0,1 ..M-1, then as i=0,
work as i=0, when 1, b
lfor
as shown in Figure 5.
ENB determines to need for RN configures n UnPUCCH resource according to the tupe, PUCCHformat etc. of UnDL/ULratio, UnUL/DLSub-config, UnPUCCH emission mode, ACK/NACK information, and be indicated to relay station by radio resource control information, wherein, n be more than or equal to 1 integer.
Preferably, eNB is that RN configures n UnPUCCH resource according to UnDL/ULratio and UnPUCCH emission mode.During UnPUCCH emission mode employing single antenna pattern, n equals UnDL/ULratio, is the corresponding UnPUCCH of ACK/NACK information configuration that each UnDL subframe is corresponding; During UnPUCCH emission mode employing multi-antenna transmission diversity mode, n equals P*UnDL/ULratio, and P is the antenna amount of UnPUCCH multi-antenna transmission.RN, in configured n UnPUCCH resource, uses all or selects wherein part resource for loading ACK/nack message, to report ACK/NACK information to eNB.
Preferably, eNB is n PUCCH resource of RN configuration can be continuous resource, that is, n UnPUCCH resource index
continuously, as shown in Figure 6; N PUCCH resource index also can be spacedly distributed,
as shown in Figure 7.
Preferably, above-mentioned radio resource control information is that RRCConnectionRNReconfiguration message reshuffled by wireless heterogeneous networks connection relay station.
Wherein, the UnPUCCH emission mode that relay station adopts can comprise following one of at least: single-antenna transmission pattern, multi-antenna transmission diversity mode.
Wherein, single-antenna transmission pattern uses antenna port p
0; In multi-antenna transmission diversity mode, the antenna port of use adds up to P, and multi-antenna port is respectively p
o, p
1..., p
p-1.Under the same conditions, when RN adopts multi-antenna transmission diversity mode to launch UnPUCCH, eNB need configure P doubly to the UnPUCCH resource needed for single-antenna transmission pattern.
Wherein, multi-antenna transmission diversity mode can be orthogonal space resource transmission diversity (SpatialOrthogonalResourceTransmitDiversity, referred to as SORTD) mode, the antenna port sum that multi-antenna transmission diversity mode uses can be P=2.
The method of embodiment of the present invention transferring ACK/nack message under difference configuration is described below by example.
Example 1
Under TDDUL/DLConfig#2, eNB configures RN and uses UnUL/DLSub-config#3, and configuration instruction RN uses Bundling mode treatment ACK/NACK information, and uses stream transmission pattern to RN transmitting downlink data at back haul link.RN is according to the configuration of eNB and back haul link information UnDL/ULratio=2: 1, i.e. M=2, determine to use PUCCHformat1b carry on UnUL subframe #7 current wireless frame UnDL subframe #3 and on the downlink data transmission of UnDL subframe #9 is corresponding in a radio frames ACK/NACK information.
RN uses Bundling pattern, PUCCHformat1b process ACK/NACK information, and adopts single-antenna transmission Mode Launch UnPUCCH, then eNB is that RN configures instruction UnPUCCH resource, and by RRC signaling by the resource of this configuration instruction RN.
The ACK/NACK information that current wireless frame UnDL subframe #3 is corresponding is p
0, p
1, the ACK/NACK information that in a upper radio frames, the downlink data transmission of UnDL subframe #9 is corresponding is q
0, q
1, then the 2bitsACK/NACK information after Bundling process is b
0, b
1, wherein, b
0=p
0* q
0, b
1=p
1* q
1, " * " presentation logic AND-operation.RN is by b
0, b
1after PUCCHformat1b process, be mapped in UnPUCCH resource that eNB configures, report ACK/NACK information to eNB.
Example 2
Under TDDUL/DLConfig#2, back haul link uses UnUL/DLSub-config#4, and back haul link uses stream transmission mode transfer downlink data.RN is according to above-mentioned back haul link information, determine to use Multiplexing pattern, the PUCCHformat1b process ACK/NACK information of channel selective mode, UnUL subframe #2 carries the ACK/NACK information corresponding to downlink data transmission of a radio frames UnDL subframe #3, #4, #8.
RN uses the PUCCHformat1b process ACK/NACK information of channel selective mode, UnDL/ULratio=3: 1, and adopting single-antenna transmission Mode Launch UnPUCCH, then eNB is that RN configures instruction 3 UnPUCCH resources, by RRC signaling by the resource of configuration instruction RN.
A upper radio frames UnDL subframe #3, the ACK/NACK information that #4, #8 are corresponding are respectively p
0, p
1, q
0, q
1, g
0, g
1, then the 3bitsACK/NACK information after Multiplexing process is b
0, b
1, b
2, wherein, b
0=p
0* p
0, b
1=q
0* q
1, b
2=g
0* g
1, " * " presentation logic AND-operation.RN is by b
0, b
1, b
2after PUCCHformat1b process, be mapped in corresponding UnPUCCH resource by Channel assignment rule, report ACK/NACK information to eNB.
Example 3
Under TDDUL/DLConfig#4, eNB configuration RNUnUL/DLratio=3: 1, i.e. M=3, and configuration instruction RN uses cascade mode process ACK/NACK information, and use stream transmission pattern to RN transmitting downlink data at back haul link.RN determines to use PUCCHformat3 on UnUL subframe #3, carry the ACK/NACK information corresponding to downlink data transmission of a radio frames UnDL subframe #7, #8, #9 according to the configuration of eNB.
RN uses PUCCHformat3 process ACK/NACK information, and adopts two antenna transmit diversity Mode Launch UnPUCCH, then eNB is that RN configures instruction 2 UnPUCCH resources, by RRC signaling by this resource instruction RN.
A upper radio frames UnDL subframe #7, the ACK/NACK information that #8, #9 are corresponding are respectively p
0, p
1, q
0, q
1, g
0, g
1, then the 6bitsACK/NACK information after cascade process is b
0, b
1... b
5, wherein, b
0, b
1... b
5=p
0, p
1, q
0, q
1, g
0, g
1.RN is by b
0, b
1... b
5after PUCCHformat3 process, two antenna ports are mapped to respectively in UnPUCCH resource that eNB configures, report ACK/NACK information to eNB.
Example 4
Under TDDUL/DLConfig#1, back haul link uses UnUL/DLSub-config#2, eNB configuration instruction RN uses Multiplexing mode treatment ACK/NACK information, back haul link uses single-stream transmission pattern to RN transmitting downlink data, and RN uses two antenna transmit diversity Mode Launch UnPUCCH.RN according to the configuration of eNB and above-mentioned back haul link information, determine to use the PUCCHformat1a of channel selective mode carry on UnUL subframe #8 current wireless frame UnDL subframe #4 and on ACK/NACK information corresponding to the downlink data transmission of a radio frames UnDL subframe #9.
RN uses the PUCCHformat1a process ACK/NACK information of channel selective mode, UnDL/ULratio=2: 1, and adopting two antenna transmit diversity Mode Launch UnPUCCH, then eNB is that RN configures instruction 4 continuous print UnPUCCH resources, by RRC signaling by the resource of configuration instruction RN.
The ACK/NACK information that a upper radio frames UnDL subframe #9 is corresponding is p
0, the ACK/NACK information that current wireless frame UnDL subframe #4 is corresponding is q
0, then the 2bitsACK/NACK information after Multiplexing process is b
0, b
1, wherein, b
0, b
1=p
0, q
0.RN is by b
0, b
1after PUCCHformat1a process, be mapped in corresponding UnPUCCH resource by Channel assignment rule, report ACK/NACK information with two antenna transmit diversity patterns to eNB.
Example 5
Under TDDUL/DLConfig#3, eNB configures RN and uses UnUL/DLSub-config#0, and configuration instruction RN uses Multiplexing mode treatment ACK/NACK information, back haul link uses single-stream transmission pattern to RN transmitting downlink data, on same back haul link sub-frame of uplink, RN also needs to report CQI information to eNB, and eNB configuration instruction RN uses two antenna transmit diversity patterns to report UnPUCCH.RN determines to use PUCCHformat2b on UnUL subframe #3, carry a radio frames UnDL subframe #7 according to the configuration of eNB, the ACK/NACK information that the downlink data transmission of #9 is corresponding and CQI information.
RN uses the PUCCHformat2b process ACK/NACK information of channel selective mode, and adopts two antenna transmit diversity Mode Launch UnPUCCH, then eNB is that RN configures instruction 2 UnPUCCH resources, by RRC signaling by the resource of configuration instruction RN.
The ACK/NACK information that upper a radio frames UnDL subframe #7, #9 are corresponding is respectively p
0, q
0, then the 2bitsACK/NACK information after Multiplexing process is b
0, b
1, wherein, b
0, b
1=p
0, q
0.RN is by b
0, b
1after pressing PUCCHformat2b process with CQI information is multiplexing, be mapped in corresponding UnPUCCH resource, report to eNB with two antenna transmit diversity patterns.
Embodiment three
The embodiment of the present invention additionally provides the treatment system that a kind of back haul link confirms ACK/ non-acknowledgement nack message, and this system is used for realizing said method.Fig. 8 is the structured flowchart of the treatment system confirming ACK/ non-acknowledgement nack message in the back haul link according to the embodiment of the present invention, and as shown in Figure 8, this system comprises:
Relay station 82, the tupe from back haul link uplink ACK/nack message to network side 84 and the Physical Uplink Control Channel form PUCCHformat that send is determined for the configuration instruction according to back haul link information and/or network side 84, wherein, back haul link information comprise following one of at least: back haul link is descending/sub-frame of uplink allocation ratio, backhaul link subframe configures, back haul link downlink data transmission pattern, the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, back haul link PUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink, and use above-mentioned tupe and PUCCHformat to process to sent back haul link uplink ACK/nack message, use the UnPUCCH resource of network side 84 configuration to the back haul link uplink ACK/nack message after network side transmission processing.
Network side 84 is that relay station 82 configures one or more back haul link Physical Uplink Control Channel UnPUCCH resource for the tupe of back haul link information and/or back haul link uplink ACK/nack message and/or PUCCHformat.
In sum, in the embodiment of the present invention, RN determines the tupe and the PUCCHformat that send back haul link uplink ACK/nack message, network side is that relay station distributes UnPUCCH resource, then RN is according to above-mentioned tupe and PUCCHformat process uplink ACK/nack message, and send ACK/NACK information by the UnPUCCH resource of distributing, thus reach the effect that intermediate range link can be used to send ACK/NACK information.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. back haul link confirms a processing method for ACK/ non-acknowledgement nack message, it is characterized in that, comprising:
Relay station RN is according to back haul link information, or indicate according to the configuration of described back haul link information and network side, determine the tupe from back haul link uplink ACK/nack message to described network side and the Physical Uplink Control Channel form PUCCHformat that send, wherein, described back haul link information comprises: back haul link is descending/and sub-frame of uplink allocation ratio UnDL/ULratio, backhaul link subframe configures, back haul link downlink data transmission pattern; Also comprise following one of at least: the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, back haul link PUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink; Described network side is that described relay station configures one or more back haul link Physical Uplink Control Channel UnPUCCH resource according to the tupe of described back haul link information and/or back haul link uplink ACK/nack message and/or described PUCCHformat;
Described relay station uses described tupe and described PUCCHformat to process to sent back haul link uplink ACK/nack message, and uses the described UnPUCCH resource of configuration to the described back haul link uplink ACK/nack message after described network side transmission processing;
Wherein, described tupe comprises one of following: binding Bundling pattern, multiplexing Multiplexing pattern, cascade mode.
2. method according to claim 1, is characterized in that, described Bundling pattern is:
Back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link is carried out logical "and" operation by code word by described relay station, form the back haul link uplink ACK/nack message after Bundling process, wherein, M be more than or equal to 1 integer.
3. method according to claim 2, is characterized in that, the back haul link uplink ACK/nack message after described Bundling process is 1 or 2 bits.
4. method according to claim 2, is characterized in that,
Described relay station adopts back haul link uplink ACK/nack message to be sent described in described Bundling mode treatment, then determine that described PUCCHformat is the PUCCHformat1a of PUCCHformat1a or 1b or channel selective mode.
5. method according to claim 2, is characterized in that,
Described relay station adopts back haul link uplink ACK/nack message to be sent described in described Bundling mode treatment, and current back haul link sub-frame of uplink needs reporting channel quality indicate CQI and/or pre-coding matrix instruction PMI and/or order instruction RI information, then determine that described PUCCHformat is PUCCHformat2 or 2a or 2b.
6. method according to claim 1, is characterized in that, described Multiplexing pattern is:
The ACK/NACK information of the different code words of corresponding same subframe in back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link is carried out logical "and" operation by described relay station, and the information bit after described AND-operation is connected successively according to the order of downlink subframes in return link form the back haul link uplink ACK/nack message after multiplexing process, wherein, M be more than or equal to 1 integer.
7. method according to claim 6, is characterized in that, the back haul link uplink ACK/nack message after described multiplexing process is M-bit.
8. method according to claim 6, is characterized in that,
Described relay station adopts back haul link uplink ACK/nack message to be sent described in described Multiplexing mode treatment, then determine that described PUCCHformat is PUCCHformat1a or 1b or for PUCCHformat1a or 1b of channel selective mode or for PUCCHformat3.
9. method according to claim 6, is characterized in that,
Described relay station adopts back haul link uplink ACK/nack message to be sent described in described Multiplexing mode treatment, and need to report CQI and/or PMI and/or RI information on current back haul link sub-frame of uplink, then determine that described PUCCHformat is PUCCHformat2 or 2a or 2b.
10. method according to claim 1, is characterized in that, described cascade mode is:
Back haul link uplink ACK/nack message corresponding for a M to be sent downlink subframes in return link to be connected the back haul link uplink ACK/nack message after forming L bit cascade process according to the order of downlink subframes in return link by described relay station successively, wherein, described M be more than or equal to 1 integer, 1≤L≤2M.
11. methods according to claim 10, is characterized in that,
If described relay station adopts back haul link uplink ACK/nack message to be sent described in described cascade mode process, then determine that described PUCCH format is PUCCHformat1a or 1b or for PUCCHformat1a or 1b of channel selective mode or for PUCCHformat3.
12. methods according to any one of claim 1 to 11, is characterized in that,
Described relay station is maximum on current back haul link sub-frame of uplink carries back haul link uplink ACK/nack message corresponding to M downlink subframes in return link, wherein, described M be more than or equal to 1 integer.
13. methods according to any one of claim 1 to 11, it is characterized in that, described PUCCHformat comprise following one of at least: PUCCHformat1a or 1b, PUCCHformat1a or 1b of channel selective mode, PUCCHformat2 or 2a or 2b, PUCCHformat3.
14. methods according to any one of claim 1 to 11, is characterized in that, described network side is that described relay station configuration back haul link Physical Uplink Control Channel UnPUCCH resource comprises:
Described network side by radio resource control RRC message be described relay station configuration n UnPUCCH resource index, wherein, described n be more than or equal to 1 integer.
15. methods according to any one of claim 1 to 11, is characterized in that,
Described network side be described relay station configuration n PUCCH resource be continuous print, or described network side be described relay station configure n UnPUCCH resource between be spacedly distributed, wherein, described n be more than or equal to 1 integer.
16. methods according to any one of claim 1 to 11, is characterized in that,
Described network side is described relay station configuration n PUCCH resource, wherein, described n by described network side according to back haul link descending/sub-frame of uplink allocation ratio UnDL/ULratio and/or back haul link UnPUCCH emission mode determine, described n be more than or equal to 1 integer.
17. methods according to any one of claim 1 to 11, it is characterized in that, described network side comprise following one of at least: base station, relay station, cell cooperative entity MCE, gateway GW, mobile management MME, Evolved UTRAN EUTRAN, operational administrative and safeguard OAM manager.
18. 1 kinds of back haul links confirm the treatment system of ACK/ non-acknowledgement nack message, it is characterized in that, comprising:
Relay station RN, for according to back haul link information, or determine according to the configuration instruction of described back haul link information and network side the tupe from back haul link uplink ACK/nack message to described network side and the Physical Uplink Control Channel form PUCCHformat that send, wherein, described back haul link information comprises: back haul link is descending/and sub-frame of uplink allocation ratio UnDL/ULratio, backhaul link subframe configures, back haul link downlink data transmission pattern; Also comprise following one of at least: the downlink subframes in return link quantity that on back haul link sub-frame of uplink, the maximum ACK/NACK information carried is corresponding, back haul link PUCCH emission mode, back haul link ascending control information content to be reported on current back haul link sub-frame of uplink; And using described tupe and described PUCCHformat to process to sent back haul link uplink ACK/nack message, the UnPUCCH resource using described network side to configure is to the described back haul link uplink ACK/nack message after described network side transmission processing;
Described network side, for being that described relay station configures one or more back haul link Physical Uplink Control Channel UnPUCCH resource according to the tupe of described back haul link information and/or back haul link uplink ACK/nack message and/or described PUCCHformat;
Wherein, described tupe comprises one of following: binding Bundling pattern, multiplexing Multiplexing pattern, cascade mode.
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| PCT/CN2011/082493 WO2012068974A1 (en) | 2010-11-22 | 2011-11-18 | Method and system for processing backhaul link ack/nack information |
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| CN104080179B (en) * | 2013-03-29 | 2018-02-23 | 中国移动通信集团公司 | Business transmitting method, apparatus and system in long term evolution TDD system |
| EP3255811A1 (en) * | 2016-06-06 | 2017-12-13 | Alcatel Lucent | Apparatus, method, central unit and computer program for determining precoding information |
| JP6848305B2 (en) * | 2016-09-29 | 2021-03-24 | ソニー株式会社 | Communication device and communication method |
| WO2019029580A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Cell cooperation method and related device |
| CN112235871B (en) * | 2020-09-24 | 2023-03-24 | 杭州红岭通信息科技有限公司 | Scheduling method of multi-input multi-output system |
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| WO2010062035A3 (en) * | 2008-11-03 | 2010-07-29 | Lg Electronics Inc. | Method for transmitting acknowledgement/non-acknowledgement in wireless communication system employing relay station |
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