WO2012130005A1 - Procédé et système de traitement d'informations de rétroaction de liaison montante de liaison de réseau terrestre dans un système tdd - Google Patents

Procédé et système de traitement d'informations de rétroaction de liaison montante de liaison de réseau terrestre dans un système tdd Download PDF

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Publication number
WO2012130005A1
WO2012130005A1 PCT/CN2012/071524 CN2012071524W WO2012130005A1 WO 2012130005 A1 WO2012130005 A1 WO 2012130005A1 CN 2012071524 W CN2012071524 W CN 2012071524W WO 2012130005 A1 WO2012130005 A1 WO 2012130005A1
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WIPO (PCT)
Prior art keywords
pucch format
ack
mode
feedback information
subframe
Prior art date
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PCT/CN2012/071524
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English (en)
Chinese (zh)
Inventor
杨瑾
毕峰
夏树强
袁弋非
袁明
吴栓栓
梁枫
Original Assignee
中兴通讯股份有限公司
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Publication of WO2012130005A1 publication Critical patent/WO2012130005A1/fr

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Classifications

    • 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
    • H04L1/1607—Details of the supervisory signal
    • 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
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0097—Relays
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention belongs to the field of mobile communications, and in particular, to a hybrid automatic repeat request (HQQ) uplink feedback information for a backhaul link in a TDD (Time Division Duplexing) system.
  • HQQ hybrid automatic repeat request
  • ACK/NACK processing method and system.
  • a link between a base station (eNB) and a macro user equipment (M-UE) in the network is called a direct transmission link ( Direct Link)
  • the link between the base station and the relay station is called a backhaul link, also called a relay link.
  • the link between the relay station and the Relay User Equipment (R-UE) is called the access link. (Access Link).
  • the M-UE is relative to the R-UE, and in a system without a relay, the user equipment is collectively referred to as a UE.
  • the transmission of signals between the eNB and the UE needs to establish a HARQ process and perform corresponding feedback.
  • the UE After receiving the signal of the eNB, the UE generates uplink feedback information for the HARQ process according to the received decoding condition of the signal, and generates acknowledgement (ACK) feedback information if the receiving is correct, and generates non-acknowledgment (NACK) feedback information if the receiving is incorrect.
  • ACK/NACK information is uplinked to the eNB.
  • the eNB performs the next processing according to the received feedback information. If an ACK is received, the eNB continues to transmit new data. If a NACK is received, the eNB will fail to receive the data. The data is retransmitted to the UE.
  • the ACK/NACK uplink feedback information is carried on the Physical Uplink Control Channel (PUCCH), and the PUCCH format that can be used to carry the ACK/NACK information includes: PUCCH format la/lb ( The PUCCH format lb (format lb with channel selection) based on the channel selection method, and the PUCCH format 3 are included.
  • PUCCH format la/lb The PUCCH format lb (format lb with channel selection) based on the channel selection method, and the PUCCH format 3 are included.
  • ACK/NACK information for multiple downlink subframes needs to be carried in one uplink subframe, as shown in Table 2.
  • the ACK/NACK information fed back in the UL subframe #n corresponds to the downlink transmission in the DL subframe #n-k, where
  • the number of DL subframes corresponding to the maximum ACK/NACK information that can be carried by the UL subframe includes 1 or 2 bits, where each bit feedback information corresponds to one Transmission Block (TB) of the DL subframe transmission, that is, corresponds to one codeword (codeword).
  • TB Transmission Block
  • codeword codeword
  • the processing of ACK/NACK information in the TDD system is divided into two modes: binding mode (Bundling) and multiplexing mode (Multixing).
  • the ACK/NACK bundling processing method is to perform an AND operation on the feedback information between the M items of ACK/NACK information, obtain the ACK/NACK information sequence after bundling, and then use the PUCCH format la/lb. Process mapping.
  • the ACK/NACK multiplexing processing method refers to the items corresponding to different DL subframes.
  • the ACK/NACK information is in units of subframes, and performs AND operations on the feedback information corresponding to different codewords in the same subframe, and cascades the lbit information after the "AND" operation in DL subframe order to form a multiplexing.
  • the ACK/NACK information sequence is processed and mapped using the PUCCH format lb.
  • the corresponding ACK/NACK information can be fed back by using the PUCCH channel resource selection used for mapping.
  • the Bundling processing needs to be performed between the multiple codewords in the same subframe and/or the different DL subframes corresponding to the same UL subframe. Then select the appropriate resources to map.
  • the applicable ACK/NACK information processing method is different due to the difference of M, that is, the number of DL/NACK corresponding maximum DL subframes to be fed back in each UL subframe.
  • M that is, the number of DL/NACK corresponding maximum DL subframes to be fed back in each UL subframe.
  • ⁇ 4 both Bundling and Multiplexing modes can be used.
  • the UE uses the corresponding method to process the feedback information according to the configuration indication of the eNB.
  • > 4 the ACK/NACK information can only be processed by using the Bundling method.
  • Un UL/DL Sub-config for different TDD UL/DL configurations.
  • the flag "U” in the corresponding subframe position indicates that the subframe is configured as Un UL subframe on the network side, and the flag "D" indicates that the configuration is Un DL. Subframe.
  • the network side uses the high layer signaling configuration to indicate the specific TDD UL/DL used by the RN.
  • the technical problem to be solved by the present invention is to provide a method and a system for processing the uplink feedback information of the backhaul link in the TDD system, and the problem of the processing scheme of the uplink feedback information of the backhaul link which is not clear in the prior art has been solved.
  • the present invention provides a method for processing uplink feedback information of a backhaul link in a time division duplex (TDD) system, the method comprising:
  • the system pre-defined and/or configured by the network side to indicate a processing mode used by the relay station (RN) to process the ACK/NACK feedback information to be reported;
  • the RN uses the processing mode and a physical uplink control channel corresponding to the processing mode
  • the (PUCCH) format processes and carries the ACK/NACK feedback information, and reports the information to the network side.
  • the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a level. Joint mode
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the system or the network side is configured according to a backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or a backlink link in Un UL/DL Sub-config (Un UL/DL).
  • the subframe ratio is predefined or configured to indicate the processing mode, and the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to the backhaul link uplink configured in the Un UL/DL Sub-config (Un The ratio of the UL) subframe to the number of backhaul link downlink (Un DL) subframes.
  • the system pre-defining the processing mode includes: the system pre-defines a correspondence between the Un UL/DL Sub-config and the processing mode and the PUCCH format; the method further includes: the RN according to the currently used Un UL/DL Sub- Config and the corresponding relationship, determining a processing mode and a PUCCH format for processing the ACK/NACK feedback information; or
  • the system pre-defining the processing mode includes: the system pre-defines a correspondence between the Un UL/DL Sub-config and the processing mode; the method further includes: the RN according to the currently used Un UL/DL Sub-config and the Determining a correspondence, determining a processing mode for processing the ACK/NACK feedback information, and further determining a PUCCH format according to the determined processing mode and the ACK/NACK feedback information amount.
  • the network side configuration indicating the processing mode includes: the network side according to Un UL/DL
  • the Sub-config configuration indicates the processing mode and the PUCCH format.
  • the method further includes: determining, by the RN, a processing mode and a PUCCH format for processing the ACK/NACK feedback information according to a configuration indication of the network side;
  • the network side configuration indicating the processing mode includes: the network side indicating the processing mode according to the Un UL/DL Sub-config configuration, the method further includes: determining, by the RN, according to the network side configuration indication, The processing mode of the ACK/NACK feedback information, and further determining the PUCCH format according to the determined processing mode and the amount of ACK/NACK feedback information.
  • the system pre-defining the processing mode includes: the system pre-defining the correspondence between the Un UL/DL subframe ratio and the processing mode and the PUCCH format; the method further includes: the RN according to the currently used Un UL/DL Sub- a ratio of the Un UL/DL subframe in the config and the corresponding relationship, determining a processing mode and a PUCCH format for processing the ACK/NACK feedback information;
  • the system pre-defining the processing mode includes: the system pre-defining a correspondence between the Un UL/DL subframe ratio and the processing mode; the method further includes: the RN according to the currently used Un UL/DL Sub-config The Un UL/DL subframe ratio in the correspondence and the correspondence relationship determine a processing mode for processing the ACK/NACK feedback information, and further determine a PUCCH format according to the determined processing mode and the ACK/NACK feedback information amount.
  • the network side configuration indicating the processing mode includes: the network side indicates the processing mode and the PUCCH format according to the Un UL/DL subframe ratio configuration; the method further includes: determining, by the RN, the processing center according to the network side configuration indication The processing mode of the ACK/NACK feedback information and the PUCCH format;
  • the network side configuration indicating the processing mode includes: the network side indicates the processing mode according to the Un UL/DL subframe ratio configuration; the method further includes: determining, by the RN, according to the network side configuration indication, The processing mode of the ACK/NACK feedback information, and further determining the PUCCH format according to the determined processing mode and the amount of ACK/NACK feedback information.
  • the processing mode indicated by the system pre-defined or network-side configuration is Bundling mode and/or Multiplexing mode
  • the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb or channel selected PUCCH format lb.
  • the processing mode of the system pre-defined or network-side configuration indication is cascading mode, and the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb or channel-selected PUCCH format lb or PUCCH Format 3.
  • the processing mode of the system pre-defined or network-side configuration indication is Bundling mode and/or Multiplexing mode, RN
  • the determined PUCCH format is the corresponding PUCCH format la or PUCCH format lb.
  • the processing mode of the system pre-defined or network-side configuration indication is Bundling mode and/or Multiplexing mode, RN
  • the determined PUCCH format is the corresponding PUCCH format la or PUCCH format lb or channel selected PUCCH format lb.
  • the processing mode of the system pre-defined or network-side configuration indication is Multiplexing mode and/or cascading mode, and the PUCCH format determined by the RN is Corresponding channel selected PUCCH format lb or PUCCH format 3.
  • the processing mode of the configuration indication is a multiplexing mode and/or a cascading mode
  • the PUCCH format determined by the RN is a PUCCH format lb or a PUCCH format 3 of a corresponding channel selection.
  • the processing mode of the system predefined or network side configuration indication is Bundling mode and/or Multiplexing mode
  • the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb or channel selected PUCCH. Format lb.
  • the processing mode of the system predefined or network side configuration indication is a cascading mode
  • the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb or the channel selected PUCCH format lb or PUCCH. Format 3.
  • the processing mode indicated by the system pre-defined or network-side configuration is Bundling mode and/or Multiplexing mode
  • the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb.
  • the processing mode indicated by the system pre-defined or network-side configuration is Bundling mode and/or Multiplexing mode
  • the PUCCH format determined by the RN is the corresponding PUCCH format la or PUCCH format lb or Channel selected PUCCH format lb.
  • the processing mode indicated by the system pre-defined or network-side configuration is the Multiplexing mode and/or the cascading mode
  • the PUCCH format determined by the RN is the corresponding channel selection.
  • the processing mode indicated by the system pre-defined or network-side configuration is Multiplexing mode and/or cascading mode, and the PUCCH format determined by the RN is corresponding.
  • the channel is selected in PUCCH format lb or PUCCH format 3.
  • the steps of the system pre-defining and/or indicating the processing mode by the network side configuration include: For an Un UL/DL Sub-config or Un UL/DL subframe ratio, when the system pre-defines the Un UL/DL Sub-config or When the Un UL/DL subframe ratio corresponds to two or more processing modes, the network side further configures a processing mode for processing the ACK/NACK feedback information to be one of the two or more processing modes.
  • the Bundling mode is: for the ACK/NACK feedback information corresponding to the downlink transmission of one or more Un DL subframes to be reported in the same Un UL subframe, the ACK/NACK feedback information is separately performed for each codeword.
  • the "AND" operation forms a lbit or 2 bit feedback information.
  • the multiplexing mode refers to ACK/NACK feedback information corresponding to downlink transmission of "Un DL subframes to be reported in the same Un UL subframe:
  • the ACK/NACK feedback information is not ANDed, and when the ACK/NACK feedback information is 1 bit, the bearer is used in the RN using the PUCCH format la, when the ACK/NACK When the feedback information is 2 bits, the PUCCH format lb is used for bearing in the RN;
  • the feedback information corresponding to the two codewords of each Un DL subframe in the ACK/NACK feedback information is ANDed, and the AND operation is performed.
  • the information is sequentially arranged in the order of Un DL subframes, and is carried in the RN using the PUCCH format lb of the channel selection;
  • the cascading mode refers to: ACK/NACK feedback information corresponding to downlink transmission of one or more Un DL subframes to be reported in the same Un UL subframe, in the order of the first sub-coded codeword or the first codeword The order of the subsequent subframes is sequentially arranged, and is carried in the RN using PUCCH format 1a or PUCCH format 1b or channel selected PUCCH format 1b or PUCCH format 3.
  • the cascading mode when the ACK/NACK feedback information corresponding to the downlink transmission of an Un DL subframe needs to be reported in the same Un UL subframe:
  • the ACK/NACK feedback information to be reported is lbit ACK/NACK information, and is carried in the RN using the PUCCH format la;
  • the ACK/NACK feedback information to be reported is 2 bit ACK/NACK information, and is carried in the RN using the PUCCH format lb.
  • the ACK/NACK feedback information corresponding to the downlink transmission of an Un DL subframe needs to be reported in the same Un UL subframe: if the backhaul link uses the dual stream on the one Un DL subframe
  • the ACK/NACK feedback information to be reported is two code words of the downlink transmission of the Un DL subframe, 3 ⁇ 4 corresponding ACK/NACK information, ⁇ , and the PUCCH format lb is used in the RN. Carrying; and
  • the location of the ACK/NACK feedback information to be reported is NACK.
  • the ACK/NACK feedback information to be reported includes: one codeword B of the downlink transmission of the first Un DL subframe in the two Un DL subframes.
  • the corresponding ACK/NACK information b 0 and the ACK/NACK information corresponding to one code word B 1 of the downlink transmission of the second Un DL subframe are to be reported.
  • the ACK/NACK feedback information is sequentially arranged in the Un DL subframe order, and is carried in the RN using the channel selected PUCCH format lb; if the backhaul link uses the dual stream transmission mode on the two Un DL subframes,
  • the ACK/NACK feedback information to be reported includes two code words 3 ⁇ 4, 7 of the downlink transmission of the first Un DL subframe in the two Un DL subframes.
  • the ACK/NACK feedback information to be reported includes a codeword corresponding to the downlink transmission of the first Un DL subframe in the n Un DL subframes, where the link uses a single-stream transmission mode in which one codeword is transmitted.
  • ACK/NACK information, ⁇ i ⁇ n - ⁇ the ACK/NACK feedback information to be reported is sequentially arranged in the order of Un DL subframes as b°, b ...
  • the format 3 carries the bearer; if the backhaul link uses the dual stream transmission mode on the Un DL subframe, the ACK/NACK feedback information to be reported includes the first Un DL subframe in the n Un DL subframes.
  • the two codewords of the downlink transmission correspond to the ACK/NACK information corresponding to 7 ⁇ 4, 7 ', and 0 ⁇ i ⁇ n - ⁇ , and the ACK/NACK feedback information to be reported is sequentially in the order of the codeword after the first subframe.
  • the invention also provides a relay station, comprising: a system pre-defined storage module, which is set to be pre-defined by the storage system for processing to be reported
  • a feedback information processing reporting module configured to: process and carry the ACK/NACK feedback information by using a processing mode stored by the system predefined storage module and a physical uplink control channel (PUCCH) format corresponding to the processing mode, And report to the network side;
  • PUCCH physical uplink control channel
  • the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a cascading mode;
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the processing mode stored by the system predefined storage module is based on the backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or the back link in the Un UL/DL Sub-config uplink and downlink (Un UL/ DL)
  • the subframe ratio is predefined, and the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to the back link uplink (Un UL) configured in the Un UL/DL Sub-config The ratio of the number of frames to the number of backhaul (Un DL) subframes.
  • the system predefined storage module is configured to store the processing mode by: storing a correspondence between a Un UL/DL Sub-config or Un UL/DL subframe ratio and the processing mode; the feedback information
  • the processing reporting module is further configured to: determine, according to the currently used Un UL/DL Sub-config or Un UL/DL subframe ratio and the correspondence, a processing mode for processing the ACK/NACK feedback information, and according to the The determined processing mode and the amount of ACK/NACK feedback information determine the PUCCH format.
  • the relay station further includes a configuration indication receiving module, where the configuration indication receiving module is configured to receive a processing mode and/or a PUCCH format of the network side configuration indication; wherein, for an Un UL/DL Sub-config or Un UL/DL subframe ratio, If the Un UL/DL Sub-config or Un UL/DL subframe ratio corresponds to two or more processing modes, the processing mode of the network side configuration indication is in the two or more processing modes.
  • the present invention further provides a communication system, the communication system comprising a base station and a relay station, wherein the base station is configured to configure a processing mode indicating that the relay station (RN) is configured to process ACK/NACK feedback information to be reported;
  • the relay station is configured to: determine a PUCCH format according to a processing mode indicated by the base station configuration and an ACK/NACK feedback information amount, and process and carry the ACK/NACK feedback by using the processing mode and a physical uplink control channel (PUCCH) format.
  • the information is reported to the network side; where the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a cascading mode;
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the base station is configured to be configured according to a backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or a backlink link uplink/downlink (Un UL/DL) subframe ratio in the Un UL/DL Sub-config Instructing the processing mode, the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to a backhaul link uplink (UnUL) subframe and a backhaul chain configured in the Un UL/DL Sub-config The ratio of the number of downlink (Un DL) subframes.
  • the method and system of the present invention are directed to different backhaul link uplink/downlink subframe configurations (Un UL/DL Sub-config) or backhaul link up/downlinks (Un UL/DL) in Un UL/DL Sub-config
  • the frame ratio proposes an applicable ACK/NACK feedback information processing mode, which effectively implements the RN's reporting of ACK/NACK uplink feedback information to the eNB, and fully utilizes the Backhaul link channel condition to improve the transmission efficiency of the Backhaul Link uplink feedback information.
  • 1 is a schematic diagram of a structure of a relay network
  • FIG. 2 is a schematic diagram of a method for processing uplink ACK/NACK feedback information of a backhaul link of a TDD system according to the present invention
  • Figure 3 is a schematic diagram of a Bundling processing mode
  • FIG. 4 is a schematic diagram of a multiplexing processing mode
  • Figure 5 is a schematic diagram of a cascade processing mode.
  • the present invention provides a processing method and system for uplink ACK/NACK feedback information of a backhaul link of a TDD system, for different backhaul link uplink/downlink subframe configurations (Un UL/DL Sub-config) or Un UL/
  • the uplink/downlink (Un UL/DL) subframe ratio of the backhaul link in the DL Sub-config proposes an applicable ACK/NACK feedback information processing mode, which provides a clear processing scheme for the uplink feedback information of the backhaul link, and effectively implements the RN pair.
  • the ACK/NACK uplink feedback information is reported to the eNB, and the Backhaul link channel condition is fully utilized to improve the transmission efficiency of the Backhaul Link uplink feedback information.
  • the network side may include one or more of the following device entities: a base station (eNB), a relay station (RN), a cell coordination entity (MCE), a gateway (GW), a mobility management device (MME), an evolved universal terrestrial wireless Access Network (EUTRAN), Operations Management and Maintenance (OAM) Manager.
  • eNB base station
  • RN relay station
  • MCE cell coordination entity
  • GW gateway
  • MME mobility management device
  • EUTRAN Operations Management and Maintenance
  • OAM Operations Management and Maintenance Manager
  • the proposed method and example are only reported for the backhaul link of the TDD system.
  • the ACK/NACK feedback information processing method and system, and the backhaul link configuration in a single carrier (single cell) environment, does not involve the processing mode of the backhaul link in the multi-carrier configuration.
  • the ACK/NACK feedback information to be reported by the backhaul link refers to ACK/NACK feedback information generated by the RN for the physical downlink shared channel (PDSCH) transmitted in the Un DL subframe or for the semi-static configuration service release. (Semi-Persistent Scheduling, SPS release) ACK feedback information generated by the Physical Downlink Control Channel (PDCCH) of the message.
  • PDSCH physical downlink shared channel
  • SPS release Semi-Persistent Scheduling, SPS release
  • the method for processing the uplink ACK/NACK feedback information of the backhaul link of the TDD system proposed by the present invention is as follows:
  • Step 201 The system pre-defined and/or the network side configuration indicates a processing mode of the relay station (RN) for processing the ACK/NACK feedback information to be reported;
  • Step 202 The system or network side according to the backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or Un UL/DL Sub-config backhaul link up/down (Un UL/DL) subframe ratio Make pre-defined or configuration instructions.
  • Step 202 The RN processes the ACK/NACK feedback information by using the corresponding processing mode and the corresponding PUCCH format, and then sends the ACK/NACK feedback information to the network side.
  • the RN may determine the corresponding PUCCH format according to the corresponding processing mode and the amount of ACK/NACK feedback information.
  • the PUCCH can also be predefined by the network side configuration indicator or the system.
  • the manner in which the RN determines the PUCCH format by itself is mainly described.
  • the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a cascading mode.
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the RN can obtain the corresponding PUCCH format by combining the amount of ACK/NACK feedback information to be reported, where ACK/NACK feedback information The amount is determined by the way the backhaul link data is transmitted.
  • the RN When the downlink transmission of the backhaul link is in the single-stream mode, the RN generates lbit ACK/NACK feedback information for the downlink transmission of each Un DL.
  • the RN When the downlink transmission of the backhaul link uses the dual-stream mode, the RN downlinks for each Un DL.
  • the transmission generates 2 bit ACK/NACK feedback information, and the RN can determine the ACK/NACK feedback information according to the downlink transmission mode of the backhaul link, and combined with the ACK/NACK processing mode that should be used, the PUCCH format used can be determined accordingly.
  • Un UL/DL Sub-config is shown in Table 3. #0 - #18 A total of 19 different backhaul link subframe configurations, also known as Un subframe configuration.
  • the Un subframe configuration indicates that the RN indicates the corresponding uplink and downlink subframes for the uplink and downlink data transmission on the backhaul link.
  • the Un UL/DL subframe ratio is the ratio of the Un UL subframe to the Un DL subframe configured in the Un UL/DL Sub-config.
  • the system can be divided into the following three cases according to the Un UL/DL Sub-config pre-defined or the network side according to the Un UL/DL Sub-config configuration instructions:
  • each Un UL/DL Sub-config may correspond to Bundling, Multiplexing, cascading One or more of the three processing modes.
  • RN based on current Using the Un UL/DL Sub-config and the predefined correspondence, obtaining a mode for processing ACK/NACK information and a corresponding PUCCH format, and processing the ACK/NACK feedback information to be reported using the corresponding mode and PUCCH format, Report to the network side.
  • the system pre-defines a correspondence between each Un UL/DL Sub-config and the processing mode, and the RN determines ACK/NACK feedback according to the currently used Un UL/DL Sub-config and the predefined correspondence.
  • the processing mode of the information is further determined according to the processing mode and the ACK/NACK feedback information amount, and the ACK/NACK feedback information to be reported is processed by the corresponding processing mode and the corresponding PUCCH format, and reported to the network side. See Example 1 for details.
  • Case B On the basis of Case A, when the system pre-defines more than one processing mode for a certain Un UL/DL Sub-config, the network side may further configure the indication RN through the high-level signaling.
  • the ACK/NACK information to be reported is processed by the RN according to the indicated processing mode and the corresponding PUCCH format, and the RN reports the ACK/NACK feedback information to be reported to the network side. See examples 2, 3 for details.
  • Case C The Un UL/DL Sub-config used by the network side according to the backhaul link indicates that the RN uses one of the three processing modes Bundling, Multiplexing, and cascading, and the PUCCH format to process ACK/NACK information, RN
  • the ACK/NACK feedback information to be reported is processed according to the processing mode of the configuration indication and the corresponding PUCCH format, and reported to the network side;
  • the network side indicates the processing mode of the RN according to the back link Un UL/DL Sub-config configuration, and the RN determines the processing mode of the ACK/NACK feedback information according to the configuration indication, and further, according to the processing mode and the ACK/NACK feedback information amount.
  • the system pre-defines or the network side configuration indicates that the RN uses the Bundling and/or Multiplexing mode to process ACK/NACK feedback information, and the RN uses the ACK/NACK feedback information in the corresponding processing mode and PUCCH format.
  • La or lb or channel selected lb bearer See Example 3 for a specific example.
  • the system is predefined or configured by the network side
  • the RN processes the ACK/NACK feedback information in a cascading mode, and the RN carries the ACK/NACK feedback information in a corresponding processing mode and PUCCH format la or lb or channel selected lb or format 3.
  • the system is predefined or configured by the network side to indicate that the RN is processed in Bundling and/or Multiplexing mode.
  • ACK/NACK feedback information the RN carries the ACK/NACK feedback information in the corresponding processing mode and PUCCH format la or lb;
  • the RN carries the ACK/NACK feedback information in the corresponding processing mode and PUCCH format 3. See Example 1 for a specific example.
  • the system is predefined or configured by the network side to indicate that the RN is processed in Bundling and/or Multiplexing mode.
  • ACK/NACK feedback information the RN carries the ACK/NACK feedback information in the corresponding processing mode and PUCCH format la or lb; for Un UL/DL Sub-config#2, #3, #7, #8, #9, # 10, #11, #12, #14, #15, #16, #17,
  • the system is predefined or indicated by the network side to indicate that the RN handles ACK/NACK feedback information in Multiplexing and/or cascading mode, and the RN will ACK/
  • the NACK feedback information is carried in the corresponding processing mode and channel selected lb or PUCCH format 3. See Example 2 for a specific example.
  • the system is predefined or configured by the network side to indicate that the RN is processed in Bundling and/or Multiplexing mode.
  • ACK/NACK feedback information the RN carries the ACK/NACK feedback information in the corresponding processing mode and PUCCH format la or lb;
  • Selected lb bearer for Un UL/DL Sub-config#9, #10, #12, #16, #17, system predefined or by network side configuration indication RN multiplexed with multiplex/ and cascading mode ACK/ NACK feedback information, RN will ACK/NACK The feedback information is carried in the corresponding processing mode and channel selected lb or PUCCH format 3.
  • the system is pre-defined according to the Un UL/DL subframe ratio or the network side according to the Un UL/DL subframe ratio configuration indication can be divided into the following three situations:
  • each Un UL/DL subframe ratio may correspond to Bundling, Multiplexing, and Cascade respectively.
  • the RN obtains a mode for processing ACK/NACK information and a corresponding PUCCH format according to the Un UL/DL subframe ratio in the currently used Un UL/DL Sub-config and the predefined correspondence, and uses the corresponding or system.
  • Predefining the correspondence between different Un UL/DL subframe ratios and processing modes are described in the current used Un UL/DL Sub-config.
  • the RN determines a processing mode of the ACK/NACK feedback information according to the Un UL/DL subframe ratio in the currently used Un UL/DL Sub-config and the predefined correspondence, and further, according to the processing mode and the ACK/NACK feedback information.
  • the quantity is determined by the PUCCH format, and the ACK/NACK feedback information to be reported is processed by the corresponding processing mode and the PUCCH format, and reported to the network side. See Example 4 for a specific example.
  • the network side may further configure the indication RN through the high-level signaling.
  • the ACK/NACK information to be reported is processed by the RN according to the indicated processing mode and the corresponding PUCCH format, and the RN reports the ACK/NACK feedback information to be reported to the network side. See Examples 5 and 8 for specific examples.
  • Case 3 The network side configures, according to the proportion of Un UL/DL subframes used by the backhaul link, the RN to process the ACK/NACK information by using one of the three processing modes of Bundling, Multiplexing, and cascading, and the PUCCH format.
  • the RN processes the ACK/NACK feedback information to be reported according to the processing mode of the configuration indication and the corresponding PUCCH format, and reports the information to the network side.
  • the network side configures the RN processing mode according to the proportion of the Un UL/DL subframe of the backhaul link
  • the RN determines a processing mode of the ACK/NACK feedback information according to the configuration indication, and further determines a PUCCH format according to the processing mode and the ACK/NACK feedback information amount. See Example 7 for a specific example.
  • the specific implementation schemes for the above three cases (1-3) include the following: For any Un UL/DL subframe ratio, the system pre-defines or indicates by the network side that the RN uses the Bundling and/or Multiplexing mode to process ACK/NACK feedback information, and the RN uses the ACK/NACK feedback information in the corresponding processing mode and PUCCH format. La or lb or channel selected lb bearer.
  • the system is predefined or configured by the network side.
  • the RN uses the cascading mode to process the ACK/NACK feedback information, as well as the lb or format 3 of the PUCCH format la or lb or channel selection.
  • the system pre-defines or is configured by the network side to indicate that the RN processes the ACK/NACK feedback information in the Bundling and/or Multiplexing mode, and the RN sends the ACK/NACK feedback information accordingly.
  • the system pre-defines or the network side configuration indicates that the RN uses the Bundling and/or Multiplexing mode to process the ACK/NACK feedback information,
  • the RN carries the ACK/NACK feedback information in the corresponding processing mode and the lb of the PUCCH format la or lb or channel selection; when the Un UL/DL subframe ratio is 1:3 or 1:4, the system is predefined or by the network side.
  • the configuration indication RN uses the cascading mode to process the ACK/NACK feedback information, and the RN carries the ACK/NACK feedback information in the corresponding processing mode and PUCCH format 3. See Examples 5 and 7 for specific examples.
  • the system pre-defines or is configured by the network side to indicate that the RN processes the ACK/NACK feedback information in the Bundling and/or Multiplexing mode, and the RN sends the ACK/NACK feedback information accordingly.
  • Processing mode and PUCCH format la or lb bearer when the Un UL/DL subframe ratio is 1: 2 or 1: 3 or 1: 4, the system is predefined or indicated by the network side to indicate that the RN uses Multiplexing and/or In association mode, the ACK/NACK feedback information is processed, and the RN carries the ACK/NACK feedback information in the corresponding processing mode and channel selected lb or PUCCH format 3. See Example 4 for a specific example.
  • the system pre-defines or is configured by the network side to indicate that the RN processes the ACK/NACK feedback information in the Bundling and/or Multiplexing mode, and the RN sends the ACK/NACK feedback information accordingly.
  • the system pre-defines or the network side configuration indicates that the RN uses the Bundling and/or Multiplexing mode to process the ACK/NACK feedback information,
  • the RN carries the ACK/NACK feedback information in a corresponding processing mode and a PUCCH format la or lb or a channel selected lb;
  • the system pre-defines or the network side configuration indicates that the RN uses the Multiplexing and/or cascading mode to process ACK/NACK feedback information, and the RN feeds back ACK/NACK feedback.
  • the information is carried in the corresponding processing mode and channel selected lb or PUCCH format 3. See Example 8 for a specific example.
  • the Bundling mode is: performing downlink and corresponding ACK/NACK information for one or more Un DL subframes to be reported in the same Un UL subframe, and performing "AND" on the feedback information corresponding to the multiple Un DL subframes by using a codeword. Operation, forming 1 or 2 bit information, as shown in FIG. 3, is further processed using the PUCCH format la or lb.
  • the Bundling process does not perform an AND operation on the ACK/NACK feedback information of the Un DL subframe, and the 1 or 2 bit feedback information of the Un DL subframe is processed and carried in the PUCCH format la or lb.
  • the RN uses the PUCCH format la bearer when the feedback information after the Bundling processing is lbit. When the feedback information is 2 bits, the RN carries the PUCCH format lb.
  • ACK/NACK information corresponding to downlink transmission of one or more Un DL subframes to be reported in the same Un UL subframe, corresponding to different codewords of each Un DL subframe in multiple Un DL subframes
  • the feedback information is subjected to an AND operation, that is, spatial bundling across multiple codewords processing, and the information bits after the "AND" operation are sequentially arranged in the order of Un DL sub-frames, as shown in FIG.
  • the processing bearer is further processed using the PUCCH format la or lb or the channel selected PUCCH format lb.
  • the multiplexing processing does not perform an AND operation on the ACK/NACK feedback information corresponding to the Un DL subframe.
  • the 1 or 2 bit feedback information of the Un DL subframe is directly processed and carried in the PUCCH format la or lb.
  • the feedback information is lbit
  • the PUCCH format la is used accordingly
  • the feedback information is 2 bits
  • the PUCCH format lb is used accordingly.
  • the Multiplexing The mode performs an AND operation on the feedback information corresponding to the two codewords of the Un DL subframe, and sequentially arranges the information bits after the AND operation in the Un DL subframe order, and further uses the channel selection PUCCH format lb.
  • the ACK/NACK feedback information transmitted by the two Un DL subframes is sequentially arranged in the Un DL subframe order, and the PUCCH format using the channel selection is used.
  • Lb is processed to carry.
  • LTE Release 8 mapping relationship or the LTE Release 10 mapping relationship, which may be predefined by the system or by a high-level, for the mapping between the feedback information used by the Multiplexing processing mode and the used PUCCH resources.
  • the signaling configuration indicates the RN.
  • the sequence of the codewords after the first subframe or the subframes of the first codeword are sequentially arranged.
  • J as shown in FIG. 5, the PUCCH format lb or PUCCH format 3 is further used for processing bearer using the PUCCH format la or lb or channel selection.
  • the cascading mode processing further processes the corresponding lbit ACK/NACK information by using the PUCCH format la; if the backhaul link uses the dual stream transmission mode on the Un DL subframe, that is, when transmitting two codewords, the level is The joint mode processing will be the corresponding 2bit ACK/NACK information b .
  • A further processing the bearer using the PUCCH format lb.
  • the 2-bit feedback information obtained by the cascading mode processing is respectively two codewords transmitted in the downlink of the Un DL subframe.
  • A further processing the bearer by using the PUCCH format lb; when the Un DL subframe is not downlinked or only uses the single stream transmission mode, the corresponding feedback information location is NACK.
  • the ACK/NACK information corresponding to the downlink transmission of the two Un DL subframes is to be reported in the same Un UL subframe, if the backhaul link is used in the Un DL subframe, the single-stream transmission mode is used, that is, one code is transmitted.
  • the feedback information corresponding to one codeword transmitted in the downlink of the first Un DL subframe that is, the ACK/NACK information corresponding to TB 0 is b 0
  • the one codeword corresponding to the downlink transmission of the second Un DL subframe corresponds to
  • the feedback information that is, the ACK/NACK information corresponding to 7B 1 is, the cascading mode processing sequentially aligns the ACK/NACK feedback information transmitted by the two Un DL subframes in the Un DL subframe order.
  • the PUCCH format lb of the channel selection is used for processing bearer; if the backhaul link uses the dual stream transmission mode on the Un DL subframe, the feedback information corresponding to the two codewords transmitted in the downlink of the first Un DL subframe, That is, the ACK/NACK information corresponding to 3 ⁇ 4, ⁇ ° is , and the feedback information corresponding to the two codewords transmitted in the downlink of the second Un DL subframe, that is, the ACK/NACK information corresponding to 3 ⁇ 4,7 is , , cascading mode Processing the obtained 4-bit feedback b 0 ° , b in the order of the codewords after the first subframe, and further processing the bearer using the PUCCH format lb of the channel selection, when the Un DL subframe does not perform downlink transmission or only transmits one code When the word is used, the corresponding feedback information position is NACK.
  • the mapping relationship between the feedback information and the used PUCCH resource may be used in two ways, and an LTE Release 8 mapping relationship may be used, or an LTE Release 10 mapping relationship may be used.
  • the RN may be predefined by the system or configured by a high layer signaling.
  • the cascade mode processing When transmitting a codeword, the feedback information corresponding to one codeword transmitted in the downlink of the 7 ' Un DL subframe, 0 ⁇ ⁇ "_1, that is, the ACK/NACK information corresponding to 7' is, the cascade mode processing will be n
  • the ACK/NACK feedback information of the Un DL subframe transmission is sequentially arranged in the Un DL subframe order to obtain the nbit feedback information as 6 j" -1 , and further processed using the PUCCH format 3; if the backhaul is on the Un DL subframe
  • the link uses dual-stream transmission mode, and the feedback information corresponding to two codewords transmitted in the downlink of the 7th Un DL subframe, 0 ⁇ i ⁇ fj_l, that is, 3 ⁇ 4, 7 ⁇ ; 'the corresponding ACK/NACK information is,
  • the cascading mode processes the 2* «bit feedback information obtained by sequentially arranging the codewords in the first sub-frame to be m K br 1
  • Example 1 The system pre-defines the correspondence between the Un UL/DL Sub-config and the feedback information processing mode, as shown in Table 4.
  • the RN obtains the ACK/NACK information in the Bundling and Multiplexing mode according to the predefined correspondence shown in Table 4 of the currently used Un UL/DL Sub-config, and the eNB The RN is further instructed by higher layer signaling to process ACK/NACK information using the Multiplexing mode.
  • the eNB uses the single-stream transmission mode for the downlink data of the RN, and the RN uses the Multiplexing mode to process, and the corresponding 1 bit ACK/NACK feedback information is mapped in the PUCCH format la bearer and reported to the eNB.
  • the backhaul link uses Un UL/DL Sub-config#10, then the RN is based on the currently used Un.
  • the UL/DL Sub-config obtains the ACK/NACK information in cascading mode in the predefined correspondence shown in Table 4.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascade mode, and the downlink transmission on the Un DL subframes #3, #8, #9 is corresponding.
  • the 6-bit feedback information obtained by sequentially arranging the feedback information in the order of the first sub-frame codeword is , , 2 , 6 1 2 , and the RN maps the information processed in the concatenated mode to the PUCCH format 3 bearer, and then advertises to the eNB.
  • the system pre-defines the correspondence between Un UL/DL Sub-config and feedback information processing mode, as shown in Table 5.
  • the back link uses Un UL/DL Sub-config#4, then the RN is based on the currently used Un UL/DL
  • the predefined correspondence shown in Sub-config Table 5 is obtained to process ACK/NACK information in the Bundling and Multiplexing modes, and the eNB further instructs the RN through higher layer signaling to process the ACK/NACK information using the Bundling mode.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN uses the Bundling mode to process, and the corresponding 2-bit ACK/NACK feedback information is mapped in the PUCCH format lb and reported to the eNB.
  • the backhaul link uses Un UL/DL Sub-config#8, and the RN obtains the ACK/NACK information in the cascade mode according to the predefined relationship shown in Table 5 according to the currently used Un UL/DL Sub-config.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascading mode, and presses the corresponding feedback information of the downlink transmission on the Un DL subframes #3 and #9.
  • the 4 bit feedback information obtained by sequentially arranging the codewords in the first sub-frame is blb blb], and the RN maps the information processed in the concatenated mode to the PUCCH format 3 bearer, and then advertises on the Un UL sub-frame #7 to the eNB.
  • the system is pre-defined to handle all Un UL/DL Sub-configs in Bundling or Multiplexing mode.
  • the backhaul link uses Un UL/DL Sub-config #17, and the eNB further instructs the RN through higher layer signaling to process the ACK/NACK information using the Multiplexing mode, and the RN processes the ACK/NACK information in the Multiplexing mode according to the configuration indication.
  • Un DL subframes #4, #7, #8, #9 the eNB performs downlink data transmission on the RN using the single stream transmission mode, and the RN uses the Multiplexing mode to process, , , 2 and 3 are Un DL subframes respectively.
  • #4, #7, #8, #9 downlink transmission corresponding feedback information
  • the RN further maps the feedback information, 2 , 3 in the PUCCH format lb of the channel selection, and reports to the eNB.
  • the uplink ACK/NACK feedback information of the backhaul link is processed in Bundling mode.
  • the cascading mode is used.
  • the backhaul link uses Un UL/DL Sub-config# 1 , where the Un UL/DL subframe ratio is 1: 1 .
  • the RN processes the ACK/NACK information in the Bundling mode according to the predefined rules of the system.
  • the eNB uses the dual stream transmission mode for the downlink data of the RN, and the RN uses the Bundling mode to process the corresponding 2 bit ACK/
  • the NACK feedback information is mapped in the PUCCH format lb, and is sent to the eNB.
  • the backhaul link uses Un UL/DL Sub-config# 10 , where the Un UL/DL subframe ratio is 1:
  • the RN uses the cascading mode to process the ACK/NACK feedback information.
  • the eNB uses the single-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascade mode, and the downlink transmission on the Un DL subframes #3, #8, #9 is corresponding.
  • the feedback information is sequentially arranged in the order of the codewords after the first sub-frame, and the 6-bit feedback information is The RN processes the information processed by the cascading mode in the PUCCH format 3 bearer and reports to the eNB.
  • the system pre-defines the ACK/NACK feedback information of the backhaul link in the Bundling and Multiplexing mode when the ratio of Un UL/DL subframe is 1: 1 or 1: 2, and the cascading mode is used when other ratio values are used.
  • the backhaul link uses Un UL/DL Sub-config#l 1 , where the Un UL/DL subframe ratio is 1:
  • the RN processes the ACK/NACK information in the Bundling and Multiplexing modes according to the system predefined rules. Further, the eNB instructs the RN to process the ACK/NACK information in the Multiplexing mode through the high layer signaling configuration.
  • the system pre-defined multiplexing mode is 2
  • the ACK/NACK feedback information is not subjected to spatial bundling processing between code words.
  • the eNB performs downlink data transmission on the RN using the dual stream transmission mode, and the RN uses the Multiplexing mode to process, b 0 0 , b? , , respectively, Un DL subframe #7, # 9 downlink transmission correspondingly generated feedback information, the RN further maps the feedback information, and is mapped to the eNB by the bearer mapping of the PUCCH format lb of the channel selection.
  • the backhaul link uses Un UL/DL Sub-config#17 , where the Un UL/DL subframe ratio is 1:
  • the ACK/NACK feedback information is processed in the cascade mode.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascade mode, and will downlink on the Un DL subframes #4, #7, #8, #9. Transfer corresponding
  • the feedback information is sequentially arranged in the order of the codewords after the first sub-frame, and the 8-bit feedback information is The RN maps the information processed by the cascading mode to the eNB on the PUCCH format 3 bearer.
  • the eNB uses the Un UL/DL Sub-config configuration indication according to the backhaul link.
  • the RN uses one of three processing modes, Bundling, Multiplexing, and Cascading, to process ACK/NACK information.
  • the backhaul link uses Un UL/DL Sub-config #0, and the eNB configuration indicates that the RN processes the ACK/NACK information in the cascading mode.
  • the eNB uses the single-stream transmission mode for the downlink data of the RN, and the RN
  • the configuration indication is performed by using the cascading mode processing to map the corresponding lbit ACK/NACK feedback information to the eNB in the PUCCH format.
  • the backhaul link uses Un UL/DL Sub-config #9, and the eNB configuration indicates that the RN processes the ACK/NACK information in the Bundling mode, and the RN maps the information processed in the Bundling mode to the eNB in the PUCCH format lb according to the indication.
  • Example 7
  • the eNB configures the RN to use one of the three processing modes of Bundling, Multiplexing, and Cascade to process the ACK/NACK information according to the Un UL/DL subframe ratio of the backhaul link, and the ratio of the Un UL/DL subframe is 1: 1 or 1: 2, the uplink ACK/NACK feedback information of the backhaul link is processed in the Multiplexing mode. When other ratio values are used, the cascading mode is used.
  • the backhaul link uses Un UL/DL Sub-config#8, where the Un UL/DL subframe ratio is 1:2, and the eNB configuration instructs the RN to process ACK/NACK information in the Multiplexing mode, where the system pre-defined the Multiplexing mode at " When the value is 2, the ACK/NACK feedback information is subjected to the spatial bundling process between the code words.
  • the eNB performs the downlink data transmission on the RN using the dual stream transmission mode, and the RN uses the Multiplexing mode to process.
  • the backhaul link uses UnUL/DL Sub-config#12, where the UnUL/DL subframe ratio is 1:
  • the eNB configuration indicates that the RN processes the ACK/NACK information in a cascade mode.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascade mode, and transmits the corresponding feedback on the downlink transmission on the UnDL subframes #7, #8, #9.
  • the information obtained by arranging the information in the cascading mode is mapped to the PUCCH format 3 and is reported to the eNB on the UnUL subframe #3.
  • the system pre-defined for the Un UL/DL subframe ratio is 1: 1 or 1: 2
  • the backlink link uplink ACK/NACK feedback information is processed in Bundling and Multiplexing mode
  • the Un UL/DL subframe ratio is 1: 3 or 1.
  • the backhaul link uses Un UL/DL Sub-config#l 1 , where the Un UL/DL subframe ratio is 1: 2, then the RN processes the ACK/NACK information in Bundling and Multiplexing modes according to the system predefined rules.
  • the eNB instructs the RN to process the ACK/NACK information in the Multiplexing mode through the high layer signaling configuration.
  • the system pre-defined multiplexing mode is 2
  • the ACK/NACK feedback information is not subjected to spatial bundling processing between code words.
  • the eNB performs downlink data transmission on the RN using the dual stream transmission mode, and the RN uses the Multiplexing mode to process, b 0 0 , b? , , respectively, Un DL subframe #7, # 9 downlink transmission correspondingly generated feedback information, the RN further maps the feedback information, and is mapped to the eNB by the bearer mapping of the PUCCH format lb of the channel selection.
  • the backhaul link uses UnUL/DL Sub-config#l 7, where the UnUL/DL subframe ratio is 1:
  • the multiplex/cascade mode is used to process the ACK/NACK feedback information. Further, the eNB performs the high-level signaling configuration indication that the RN processes in the cascade mode.
  • the eNB uses the dual-stream transmission mode for the downlink data of the RN, and the RN processes the ACK/NACK information in the cascade mode, and transmits the downlink transmission on the UnDL subframes #4, #7, #8, #9.
  • the corresponding feedback information is sequentially arranged in the order of the first sub-frame codeword, and the 8 bit feedback information is 2 A 2 , 3 , , and the RN processes the information in the cascade mode as PUCCH.
  • the bearer mapping of the formula 3 is reported to the eNB.
  • the present invention provides a relay station, where the relay station includes: a system predefined storage module configured to store a processing mode predefined by the system for processing ACK/NACK feedback information to be reported;
  • a feedback information processing and reporting module configured to process and transmit the ACK/NACK feedback information to the network side according to the storage information of the system predefined storage module, using a corresponding processing mode and a corresponding PUCCH format;
  • the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a cascading mode;
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the information stored by the system predefined storage module is based on a backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or a back link in the Un UL/DL Sub-config uplink and downlink (Un The UL/DL) subframe ratio is predefined, and the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to the backhaul link uplink configured in the Un UL/DL Sub-config (Un UL The ratio of the number of subframes to the number of backhaul (Un DL) subframes.
  • a backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or a back link in the Un UL/DL Sub-config uplink and downlink (Un The UL/DL) subframe ratio is predefined
  • the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to the backhaul link uplink configured in the Un UL/DL Sub-config (Un UL The ratio of the number
  • the system pre-defined storage module stores a correspondence between each Un UL/DL Sub-config or a different Un UL/DL subframe ratio and the processing mode
  • the feedback information processing reporting module is further configured to: The currently used Un UL/DL Sub-config or Un UL/DL subframe ratio and the predefined correspondence relationship, determining a corresponding processing mode of the ACK/NACK feedback information, and further, according to the processing mode and the ACK/NACK feedback information amount Determine the PUCCH format.
  • the relay station further includes a configuration indication receiving module configured to receive a processing mode and/or a PUCCH format of the configuration indication of the network side, where the information stored by the system predefined storage module indicates a certain Un UL/DL When the Sub-config or Un UL/DL subframe ratio corresponds to two or more processing modes, the processing mode indicated by the network side configuration is one of two or more processing modes predefined by the system.
  • a configuration indication receiving module configured to receive a processing mode and/or a PUCCH format of the configuration indication of the network side, where the information stored by the system predefined storage module indicates a certain Un UL/DL When the Sub-config or Un UL/DL subframe ratio corresponds to two or more processing modes, the processing mode indicated by the network side configuration is one of two or more processing modes predefined by the system.
  • the present invention also provides a communication system including a base station and a relay station. among them,
  • the base station is configured to configure a processing mode indicating that the relay station (RN) is configured to process the ACK/NACK feedback information to be reported;
  • the relay station is configured to: determine a PUCCH format according to the processing mode indicated by the base station configuration and the ACK/NACK feedback information amount, and process and carry the ACK/NACK feedback information to the network by using a corresponding processing mode and a corresponding PUCCH format. Side report;
  • the processing mode includes one or more of the following: a Bundling mode, a Multiplexing mode, and a cascading mode;
  • the PUCCH format includes one or more of the following: PUCCH format la, PUCCH format lb, channel selected PUCCH format lb, and PUCCH format 3.
  • the base station performs according to a backhaul link uplink/downlink subframe configuration (Un UL/DL Sub-config) or a back link uplink/downlink (Un UL/DL) subframe ratio in the Un UL/DL Sub-config.
  • the configuration indication indicates that the Un UL/DL subframe ratio in the Un UL/DL Sub-config refers to a backhaul link uplink (Un UL) subframe and a backhaul link downlink configured in the Un UL/DL Sub-config ( Un DL ) The ratio of the number of sub-frames.
  • the present invention is directed to different backhaul link uplink/downlink subframe configurations (Un UL/DL Sub-config) or Un UL/DL Sub-config backhaul links up/down (Un UL/ DL)
  • the subframe ratio proposes an applicable ACK/NACK feedback information processing mode, which effectively implements the RN's uplink/backlink feedback information to the eNB, and fully utilizes the Backhaul link channel condition, thereby improving the transmission of Backhaul Link uplink feedback information. effectiveness.

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Abstract

La présente invention fournit un procédé et un système pour traiter des informations de rétroaction de liaison montante d'une liaison de réseau terrestre dans un système TDD. Dans le procédé : un système définit au préalable et/ou un côté de réseau configure un mode de traitement pour un RN pour traiter des informations de rétroaction ACK/NACK à rapporter; et le RN utilise le mode de traitement et le format PUCCH correspondant au mode de traitement pour traiter et porter les informations de rétroaction ACK/NACK et rapporte les susdites au côté de réseau. La présente invention permet en réalité au RN de rapporter des informations de rétroaction de liaison montante ACK/NACK à un eNB et tire totalement profit de la condition de canal de la liaison de réseau terrestre, améliorant de ce fait l'efficacité de transmission des informations de rétroaction de liaison montante de la liaison de réseau terrestre.
PCT/CN2012/071524 2011-03-25 2012-02-23 Procédé et système de traitement d'informations de rétroaction de liaison montante de liaison de réseau terrestre dans un système tdd WO2012130005A1 (fr)

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CN201110074084.XA CN102694629B (zh) 2011-03-25 2011-03-25 Tdd系统中回程链路上行反馈信息的处理方法与系统

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CN104144042B (zh) * 2013-05-10 2019-01-15 上海诺基亚贝尔股份有限公司 用于传输确认信息的方法和装置
WO2015106456A1 (fr) * 2014-01-20 2015-07-23 Nokia Solutions And Networks Oy Sélection et gestion de rétroaction d'accusé de réception/accusé de réception négatif
CN108462971B (zh) * 2017-02-22 2020-07-31 大唐移动通信设备有限公司 一种上报上行控制信息的方法及装置

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CN101888661A (zh) * 2009-05-11 2010-11-17 大唐移动通信设备有限公司 一种无线通信方法、系统及装置
CN101984568A (zh) * 2010-11-05 2011-03-09 中兴通讯股份有限公司 一种信息发送方法及系统
CN101989898A (zh) * 2010-11-15 2011-03-23 中兴通讯股份有限公司 应答消息的发送方法和装置

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CN101989898A (zh) * 2010-11-15 2011-03-23 中兴通讯股份有限公司 应答消息的发送方法和装置

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