WO2011038665A1 - Procédé et dispositif permettant de traiter des informations de rétroaction en liaison montante pour une demande harq - Google Patents

Procédé et dispositif permettant de traiter des informations de rétroaction en liaison montante pour une demande harq Download PDF

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Publication number
WO2011038665A1
WO2011038665A1 PCT/CN2010/077367 CN2010077367W WO2011038665A1 WO 2011038665 A1 WO2011038665 A1 WO 2011038665A1 CN 2010077367 W CN2010077367 W CN 2010077367W WO 2011038665 A1 WO2011038665 A1 WO 2011038665A1
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Prior art keywords
feedback information
sequence
multiplexing
multiplexed
pucch
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PCT/CN2010/077367
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English (en)
Chinese (zh)
Inventor
杨瑾
毕峰
梁枫
袁明
吴栓栓
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中兴通讯股份有限公司
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Publication of WO2011038665A1 publication Critical patent/WO2011038665A1/fr

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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
    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for processing hybrid feedback information of Hybrid Automatic Repeat Request (HARQ).
  • HARQ Hybrid Automatic Repeat Request
  • the link between the Evolved NodeB (eNB) and the Macro User Equipment (M-UE) in the network is called straight.
  • the link between the base station and the relay node is called a backhaul link, and the link between the relay node and the relay user equipment (R-UE) is called a link.
  • For the access link Access Link.
  • 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 a non-acknowledgment if the receiving is incorrect (Negative Acknowledgement, NACK) feedback information and uplink ACK/NACK information is sent to the eNB.
  • the eNB performs 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 fails to retransmit the received data to the UE.
  • each subframe contains 14 Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols, as shown in Figure 2.
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • the display is divided into 2 slots, each slot includes 7 SC-FDMA symbols, and hopping is performed between the slots.
  • Figure 2 (a) is a common structure in which #0, #1, #5, #6, #7, #8, #12, and #13 symbols carry ACK/NACK information, and the remaining #2, #3, # 4.
  • the reference signal (RS) is mapped on the #9, #10, and #11 symbols
  • FIG. 2(b) is a shortened structure that simultaneously carries a Sounding Reference Signal (SRS), where #0, #1, #5, #6, #7, #8, and #12 symbols carry ACK/NACK information, #13 symbol carries SRS, and the remaining #2, #3, #4, #9, #10
  • SRS Sounding Reference Signal
  • #13 symbol carries SRS
  • the pilot signal is mapped on the #11 symbol.
  • each subframe contains 12 SC-FDMA symbols. As shown in Figure 3, it is divided into 2 slots, and each slot includes 6 SCs.
  • FIG. 3 (a) is a common structure, where #0, #1, #4, #5, #6, #7, #10 and #11 symbols The ACK/NACK information is carried, and the remaining #2, #3, #8, and #9 symbols are mapped to the RS signal
  • FIG. 3(b) is a Shortened structure, where #0, #1, #4, #5, #6, The #7 and #10 symbols carry ACK/NACK information, the #11 symbol carries SRS, and the remaining #2, #3, #8, and #9 symbols map pilots.
  • the M-UE maps the generated ACK/NACK information to the allocated PUCCH physical resources after performing frequency domain extension and time domain extension according to the system configuration.
  • the RS is mapped at the corresponding symbol position and sent to the eNB.
  • the eNB can allocate the same PUCCH physical resource to multiple UEs.
  • the frequency domain extended index CS_index and the time domain extended index OC_index used by each UE have orthogonality and can be reused on the same PUCCH physical resource.
  • the ACK/NACK feedback information of multiple UEs, related parameters and resource allocation are indicated by the eNB to indicate the UE.
  • the eNB transmits a data packet to the UE that schedules the service in one subframe, and configures information indicating the HARQ feedback, that is, the ACK/NACK information processing related parameters and resource configuration, and the UE generates the ACK/NACK information after receiving the data, and according to the eNB,
  • the configuration indication processes the ACK/NACK information of itself and transmits the uplink to the eNB.
  • the M-UE processes the generated ACK/NACK information according to the configuration indication of the eNB and the corresponding calculation manner, and the steps are as follows: Step 10: Acquire a parameter configuration indication
  • the M-UE obtains an indication of the configuration of the PUCCH related parameter by the eNB: 3 ⁇ 4 CCH, a PUCCH resource index number used to carry the ACK/NACK feedback information, which is indicated by the high layer signaling configuration;
  • Step 20 Obtain resource configuration
  • the M-UE may obtain the resource allocation of the PUCCH format 1/la/lb according to the corresponding calculation method, as follows:
  • c is the number of SC-FDMA symbols used by each slot to carry the mapped RS.
  • c is 3
  • c is 2
  • s is the slot number in the radio frame
  • ⁇ ⁇ is the number of subcarriers per RB
  • For extended CP / is the SC-FDMA symbol number in each slot, and N b is the number of SC-FDMA symbols included in each slot.
  • Step 30 processing mapping of ACK/NACK information
  • the M-UE processes the generated ACK/NACK information according to the foregoing resource configuration, and finally maps to the allocated PUCCH resource, as follows:
  • the M-UE encodes the generated ACK/NACK information, the ACK code is 1 and the NACK code is 0.
  • the encoded information of the ACK/NACK information is 1 or 2 bits, and is respectively modulated by BPSK or QPSK into a single symbol ⁇ /(0).
  • the modulation method is shown in Table 3: Table 3 d(0) for PUCCH formats La and lb.
  • the M-UE performs frequency domain extension processing on the modulated information t/(0) according to system configuration parameters:
  • the M-UE fills the time-domain extended z (the 0 sequence is sequentially padded to the allocated RB pair in the order of the pre-frequency domain and the time domain, and finally completes mapping of the ACK/NACK information to the physical resource.
  • the HARQ The feedback information is different from that of the Direct Link.
  • the data that the eNB sends to the RN in the downlink includes the data transmitted to the RN itself, and the RN relays the R-UE sub-frames to transmit multiple data packets, and the aggregated data packet transmission.
  • the HARQ feedback information of the Backhaul Link may be different from the feedback information of the Direct Link.
  • the RN performs the transmission and reception conversion of the signal relay.
  • the number of SC-FDMA symbols that can be actually used for uplink transmission is less than the number of symbols included in one subframe, that is, the number of symbols available in Normal CP is less than the number of symbols in the configured Backhaul Link uplink subframe. 14.
  • the number of available symbols in the Extended CP is less than 12, so the channel structure of the Physical Uplink Control Channel (R-PUCCH) of the Backhaul Link is different from that of the Direct Link. Said different information content and structure of the physical uplink control channel, so Backhaul Link ACK / NACK of uplink feedback information can not be treated in accordance with the method of Direct Link.
  • the present invention provides a method and a device for processing HARQ uplink feedback information, which effectively implements an RN to transmit ACK/NACK uplink feedback information on a PUCCH of a backhaul link to an eNB, and fully utilizes Backhaul link channel conditions to improve Backhaul. Link transmission efficiency of uplink feedback information.
  • the present invention provides a method for processing hybrid automatic repeat request (HARQ) uplink feedback information, which is used for a backhaul link, and the method includes: generating a feedback information on the received data, and obtaining a feedback Or generating a plurality of feedback information for the received plurality of data, encoding a plurality of feedback information sequences, and multiplexing the plurality of feedback information sequences to obtain a multiplexed feedback information sequence; The information sequence or the multiplexed feedback information sequence is modulated to obtain a modulated Feedback information sequence;
  • HARQ hybrid automatic repeat request
  • the multiplexing sequence is mapped to the physical uplink control channel resource of the backhaul link configured by the system.
  • performing information multiplexing on the plurality of feedback information sequences refers to multiplexing in one of the following ways: serial multiplexing, bonded multiplexing, and compression multiplexing, where
  • serial multiplexing means that a plurality of feedback information sequences to be multiplexed are sequentially connected in series to form a multiplexed feedback information sequence, and the information amount of the multiplexed feedback information sequence is equal to the information amount of the plurality of feedback information sequences.
  • Binding multiplexing means that the same information bits of each feedback information sequence in the plurality of feedback information sequences to be multiplexed are operated and operated, and the value of the information bits in the multiplexed feedback information sequence is obtained, wherein The information amount of the multiplexed feedback information sequence is the same as the feedback information sequence with the largest amount of information in the plurality of feedback information sequences; the compression multiplexing refers to each of the multiple feedback information sequences to be multiplexed.
  • the feedback information sequence multiplexed feedback information is equal to a number of multiplexed sequences.
  • the step of obtaining the multiplexing sequence includes: the k-th time-frequency extended complex value sequence to be reused is
  • the plurality of pieces of feedback information sequence refers to: a plurality of data packets transmitted by the relay node to the base station in the same subframe, and the relay node is different from the base station.
  • a plurality of pieces of feedback information generated by one or more of a plurality of data packets transmitted by the frame and one or more of the plurality of sub-data packets included in the aggregated data packet transmitted by the relay node to the base station.
  • the plurality of time-frequency-spread complex-valued sequences subjected to channel multiplexing are derived from the following plurality of feedback information: the relay node is in the same subframe as the base station A plurality of pieces of feedback information generated by transmitting a plurality of data packets, a plurality of data packets transmitted by the base station in different subframes, and one or more of the plurality of sub-data packets included in the aggregated data packets transmitted by the base station.
  • the frequency domain extension sequence is used to perform frequency domain extension processing on the modulated feedback information sequence, wherein the frequency domain extension sequence is determined according to one or more of the following parameters: physical uplink control channel resource index of cell cell identifier, the system configuration corresponding to the relay node backhaul link / C U (H, higher layer configuration parameters N £ ", ⁇ ⁇ . feedback information after the modulated sequence
  • y [n) represents a complex value sequence after frequency domain expansion
  • N eeH is a cyclic shift length
  • the orthogonal sequence w freely.
  • the structure of the physical uplink control channel of the backhaul link for the HARQ uplink feedback information includes: when using the normal cyclic prefix
  • the mapping pilot signals are carried on the #2, #3, #4, #9, #10, and #11 symbols in the subframe; and the #0 and #13 symbols in the subframe are used as guard time intervals in the subframe.
  • the #1, #5, #6, #7, #8, and #12 symbols carry the HARQ uplink feedback information; or the #13 symbol in the subframe serves as the guard time interval, #0, #1, # in the subframe 5.
  • the #6, #7, #8, and #12 symbols carry the HARQ uplink feedback information; or the #0 symbol in the subframe serves as the guard time interval, #1, #5, #6, #7 in the subframe.
  • the #8, #12, and #13 symbols carry the HARQ uplink feedback information; when the extended cyclic prefix is used, the #2, #3, #8, and #9 symbols in the subframe carry the pilot signal; and the subframe #0 and #11 symbols as guard time intervals, #1, #4, #5, #6 in the sub-frame,
  • the #7 and #10 symbols carry the HARQ uplink feedback information; or the #11 symbol in the subframe serves as the guard time interval, #0, #1, #4, #5, #6, #7, and #10 in the subframe.
  • the symbol carries the HARQ uplink feedback information; or the #0 symbol in the subframe serves as the guard time interval, and the #1, #4, #5, #6, #7, #10, and #11 symbols in the subframe carry the HARQ uplink. Feedback.
  • the present invention further provides a processing apparatus for hybrid automatic repeat request (HARQ) uplink feedback information, which is used for HARQ uplink feedback information of a backhaul link, and the apparatus includes:
  • HARQ hybrid automatic repeat request
  • the HARQ uplink feedback information generating module is configured to: generate a feedback information on the received data, and obtain a feedback information sequence; or generate multiple feedback information on the received multiple data, and obtain a plurality of feedback information sequences. And multiplexing the plurality of feedback information sequences to obtain a multiplexed feedback information sequence; the modulation module is configured to: modulate the feedback information sequence or the multiplexed feedback information sequence to obtain modulated feedback An information sequence; a frequency domain extension module, configured to: perform frequency domain extension processing on the modulated feedback information sequence to obtain a frequency domain extended complex value sequence; and a time domain expansion module, configured to: The domain-expanded complex-valued sequence is subjected to time-domain extension processing to obtain a time-frequency-expanded complex-valued sequence; and a mapping module is configured to: map the time-frequency-expanded complex-valued sequence to a system-configured backhaul link Physical uplink control channel physical resources; or, multiple time-frequency extended complex value sequences are channel multiplex
  • the HARQ uplink feedback information generating module is configured to perform information multiplexing on multiple feedback information sequences in one of the following ways: serial multiplexing, binding multiplexing, and compression multiplexing, where: serial multiplexing means that The multiplexed plurality of feedback information sequences are sequentially connected in series to form a multiplexed feedback information sequence, and the information amount of the multiplexed feedback information sequence is equal to the sum of the information amounts of the plurality of feedback information sequences; the binding multiplexing means that And performing the same information bit of each feedback information sequence in the plurality of feedback information sequences to be multiplexed, to obtain a value of the information bit in the multiplexed feedback information sequence, wherein the information of the multiplexed feedback information sequence The quantity is the same as the feedback information sequence with the largest amount of information in the plurality of feedback information sequences; the compression multiplexing refers to a sequence of feedback information for each of the multiple feedback information sequences to be multiplexed, All the information bits of the feedback information sequence are operated and obtained,
  • the amount of information of the subsequent feedback information sequence is equal to the number of items of the multiplexed feedback information sequence.
  • the mapping module is configured to perform channel multiplexing on a plurality of time-frequency extended complex value sequences to obtain a multiplexing sequence: the complex value sequence after the kth time-frequency extension to be multiplexed is
  • the HARQ uplink feedback information generating module is configured to generate multiple pieces of feedback information and perform information multiplexing: a plurality of data packets transmitted by the base station in the same subframe, and/or a relay node transmits the base station in different subframes.
  • the plurality of data packets, and/or one or more of the plurality of sub-packets included in the aggregated data packet transmitted by the relay node to the base station generate the plurality of feedback information.
  • the mapping module is configured to perform channel multiplexing by using multiple time-frequency extended complex value sequences from multiple feedback information: multiple data packets transmitted by the base station in the same subframe, and the base station transmits in different subframes. Multiple data packets, and one or more of a plurality of sub-packets included in an aggregated data packet transmitted by the base station, generated Multiple feedbacks.
  • the frequency domain extension module is configured to perform frequency domain extension processing on the modulated feedback information sequence by using a frequency domain spreading sequence, where the frequency domain spreading sequence is determined according to one or more of the following parameters: a relay node
  • the cell identifier of the cell in which the cell is located is allocated to the resource index ⁇ of the corresponding physical uplink control channel of the relay node : ⁇ high-level configuration parameter N£, ⁇ ⁇ .
  • the time domain extension module is configured to perform time domain expansion as follows:
  • ⁇ represents a complex value sequence after frequency domain expansion; ⁇ 'Circular shift length;
  • the present invention provides a method and a device for processing ACK/NACK uplink feedback information for the Backhaul Link, which effectively implements the RN to carry the HARQ uplink feedback information on the PUCCH of the backhaul link to the eNB, and additionally, due to the Backhaul Link.
  • the channel condition is obviously superior to that of the Direct Link, and the uplink transmission capability of the RN is also superior to that of the UE.
  • the present invention can fully utilize the Backhaul link channel condition and improve the transmission efficiency of the Backhaul Link uplink feedback information.
  • FIG. 1 is a schematic diagram of a structure of a relay network
  • FIG. 2 (a) and FIG. 2 (b) are schematic diagrams of a PUCCH structure carrying ACK/NACK information under a normal CP in an LTE system
  • FIG. 3 (a), FIG. 3 (b) ) is an ACK/NACK message carried by an extended CP in an LTE system.
  • FIG. 4 is a schematic diagram of an RB pair configuration of a PUCCH in an LTE system
  • FIG. 5 is a schematic diagram of a PUCCH format 1 channel structure of a backhaul link in a normal CP
  • FIG. 6 is a PUCCH format 1 of a backhaul link in a Normal CP.
  • FIG. 2 is a schematic diagram of the PUCCH format 1 channel structure of the backhaul link in Normal CP;
  • Figure 8 is a schematic diagram of the PUCCH format 1 channel structure of the backhaul link in Extended CP;
  • Figure 9 is a backhaul link in Extended CP;
  • FIG. 10 is a schematic diagram of a PUCCH format 1 channel structure of a backhaul link in the case of an extended CP;
  • FIG. 11 is a flowchart of a HARQ uplink feedback information processing method for a backhaul link according to the present invention
  • Figure 1 is a schematic view of a second embodiment of the present invention
  • Figure 14 is a schematic view of a third embodiment of the present invention
  • Figure 15 is a schematic view of a fourth embodiment of the present invention
  • the eNB configures the PUCCH physical resource indicating the RN backhaul link, and the RB pair resource obtained by the RN according to the configuration and the PUCCH physical resource RB pair of the direct transmission link of the M-UE are also at both ends of the system bandwidth, and the PUCCH and the straight line of the backhaul link are
  • the PUCCH of the transmission link may be configured to be multiplexed on the same RB pair, or may allocate independent RB pair resources for the PUCCH of the backhaul link.
  • the allocated physical resources are one RB per slot, the configured RB pair includes a total of 14 SC-FDMA symbols, hopping between slots, within the sub-frame Bearer mapping on #2, #3, #4, #9, #10, and #11 symbols RS.
  • the #0 and #13 symbols are used as guard time intervals for RN's receive/transmit, send/receive state transitions, #1, #5, #6, #7, #8, and #12 symbols.
  • Carry ACK/NACK information For structure 2, the #13 symbol is used as the guard interval for the RN to receive/transmit, send/receive state transitions, and carry ACK on #0, #1, #5, #6, #7, #8, and #12 symbols.
  • /NACK information For structure three, the #0 symbol is used as the guard interval for the RN to receive/transmit, send/receive state transitions, and carry the ACK on the #1, #5, #6, #7, #8, #12, and #13 symbols. /NACK information.
  • the system uses extended CP, there are three structures, as shown in Figure 8 to Figure 10, which are respectively referred to as PUCCH format 1 channel structure 1, structure 2 and structure 3 of the backhaul link under extended CP, respectively.
  • the configured RB pair For each RB on each slot, the configured RB pair includes a total of 12 SC-FDMA symbols, hopping between slots, and the RS signals are carried on the #2, #3, #8, and #9 symbols in the subframe.
  • the #0 and #11 symbols are used as guard time intervals for RN's receive/transmit, send/receive state transitions, #1, #4, #5, #6, #7, and #10 symbols.
  • Carry ACK/NACK information For structure 2, the #11 symbol is used as the guard interval for the RN to receive/transmit, send/receive state transitions, #0, #1, #4, #5, #6, #7, and #10 symbols. Carry ACK/NACK information.
  • the #0 symbol is used as the guard interval for the RN's receive/transmit, send/receive state transition, #1, #4, #5, #6, #7, #10, and #11 symbols. Carry ACK/NACK information.
  • the processing method of the HARQ uplink feedback information for the backhaul link provided by the present invention is as shown in FIG. 11.
  • the RN performs processing mapping on the HARQ feedback information according to the configuration indication of the eNB.
  • the steps are as follows: Step 1101: The RN downlinks the received eNB.
  • the multiple ACK/NACK information is:
  • the specific multiplexing method includes serial multiplexing, binding (Bundling) multiplexing and compression multiplexing, wherein: serial multiplexing refers to: serially connecting multiple feedback information sequences to be multiplexed to form a multiplexed
  • the feedback information sequence specifically, the information amount of the item ACK/NACK information to be multiplexed is ⁇ 0 , ⁇ , . . . , ⁇ ⁇ ⁇ ⁇ ⁇ , and the “item ACK/NACK information is sequentially connected in series to form
  • Bundling multiplexing refers to: performing the same information bit of each feedback information sequence in a plurality of feedback information sequences to be multiplexed, and obtaining the value of the information bit in the multiplexed feedback information sequence, wherein, after multiplexing
  • the information amount of the feedback information sequence is the same as the feedback information sequence with the largest amount of information in the plurality of feedback information sequences; specifically, the information amount of the item ACK/NACK information to be multiplexed is ⁇ 0 , ⁇ , .. ., ⁇ ⁇ _ ⁇ ⁇
  • Compression multiplexing means For each feedback information sequence in the multiple feedback information sequences to be multiplexed, all the information bits of the feedback information sequence are operated and operated to obtain a compressed value of the feedback information sequence, and the multiple feedback information is obtained.
  • the plurality of compressed values corresponding to the sequence are serially obtained to obtain a multiplexed feedback information sequence; specifically, the information amounts of the item ACK/NACK information to be multiplexed are ⁇ 0 , ⁇ , ..., ⁇ _ ⁇
  • Step 1104 In the frequency domain extension step, the RN performs frequency domain extension processing on the modulated complex value ACK/NACK information t/(0) according to system configuration parameters:
  • «) is a frequency domain spreading sequence, determined according to one or more of the following parameters: Cell ID, the resource index of the PUCCH of the corresponding backhaul link of the RN, i UC c H ' high-level configuration parameter ⁇ .
  • N S R F PUCCH 3, 4, selecting corresponding values according to different channel structures of the PUCCH of the backhaul link; 0, ..., N S R F PUCCH _1;
  • w na W is obtained according to ". s ) and ⁇ - 11 , and ". s ) according to system configuration parameters / C UCCH N£"
  • sequences o,i,...,A CH .(N s R F p H (o)+N s R F p r H (i))- 1 , and
  • ⁇ CCH + 4( ⁇ ) ⁇ 3 ⁇ 4( ⁇ - CCH ⁇ ) , -o,i,..., CCH -i
  • the "(4) sequence configured for channel multiplexing is derived from n-term ACK/NACK information, and the n-item ACK/NACK information is:
  • Step 1107 The RNs are sequentially mapped to the PUCCH physical resources of the backhaul link configured by the system according to the order of the pre-frequency domain and the time domain.
  • the PUCCH physical resources of the configured backhaul link are according to the resource index of the PUCCH of the corresponding backhaul link.
  • the RN obtains related resources for carrying ACK/NACK feedback information according to the PUCCH channel structure and system configuration parameters of the used backhaul link, including physical resources, frequency domain, time domain extended index, etc., and details are further described below through specific embodiments.
  • the implementation process of the invention Embodiment 1
  • the RN multiplexes the two ACK/NACK uplink feedback information into the PUCCH resource of the allocated backhaul link, as shown in FIG. 12, and implements the effective bearer of the HARQ feedback information of the Backhaul Link.
  • the resource utilization of the PUCCH of the backhaul link is improved.
  • the RN uses the PUCCH format 1 channel structure of the backhaul link of the normal CP to carry the ACK/NACK feedback information.
  • the modulation mode of selecting 16QAM is 6 (0 is modulated into a complex valued symbol t/(0); Step 1304, the RN is modulated according to system configuration parameters.
  • Step 1306 The RN performs channel multiplexing on the PUCCH of the backhaul link according to the system configuration, and obtains the sequence ⁇ obtained by the RN (0 is obtained by the RN processing the ACK/NACK feedback information of the other two data packets sent by the eNB.
  • the RN multiplexes the three ACK/NACK uplink feedback information into the PUCCH resources of the allocated backhaul link, as shown in FIG. 13, and implements the effective bearer of the HARQ feedback information of the Backhaul Link.
  • the resource utilization of the PUCCH of the backhaul link is improved.
  • n(n) ⁇
  • the RN processes the generated ACK/NACK information according to the foregoing parameters.
  • the RN modulates the ACK/NACK information. Since the sequence length is 4, the modulation mode of selecting 16QAM is 6 (0 is modulated into a complex valued symbol t/(0); Step 1404, the RN is modulated according to system configuration parameters.
  • the complex-valued ACK/NACK information t/(0) performs frequency domain extension processing:
  • Step 1405 the RN performs time domain expansion processing on the frequency domain extended complex value sequence: z( ' - set H ' CCH CCH + ")
  • Step 1406 the RN performs channel multiplexing on the PUCCH of the backhaul link according to the system configuration, and the sequence obtained by the above is ⁇ (0 is 0, and the RN sends the eNB.
  • the sequence z of the ACK/NACK feedback information of another data packet is processed.
  • the RN multiplexes two ACK/NACK uplink feedback information, performs channel multiplexing with another ACK/NACK feedback information, and finally maps the PUCCH resources of the allocated backhaul link, as shown in FIG.
  • the effective bearer of the HARQ feedback information of the Backhaul Link is realized, and the resource utilization rate of the PUCCH of the backhaul link is improved.
  • the effective bearer of the HARQ uplink feedback information improves the resource utilization of the PUCCH of the backhaul link.
  • the present invention further provides a processing apparatus for uplink feedback information of a backhaul link, as shown in FIG. 16, including:
  • the HARQ uplink feedback information generating module is configured to: generate a feedback information on the received data, and obtain a feedback information sequence; or generate multiple feedback information on the received multiple data, and obtain a plurality of feedback information sequences. And multiplexing the plurality of feedback information sequences to obtain a multiplexed feedback information sequence; the modulation module is configured to: modulate the feedback information sequence or the multiplexed feedback information sequence to obtain modulated feedback An information sequence; a frequency domain extension module, configured to: perform frequency domain extension processing on the modulated feedback information sequence to obtain a frequency domain extended complex value sequence; and a time domain expansion module, configured to: The domain-expanded complex-valued sequence is subjected to time-domain extension processing to obtain a time-frequency-expanded complex-valued sequence; and a mapping module is configured to: map the time-frequency-expanded complex-valued sequence to a physical uplink control configured by the system Or channel-multiplexing the multi-valued extended complex value sequence to obtain a multiplexing sequence
  • the HARQ uplink feedback information generating module is configured to perform information multiplexing on multiple feedback information sequences in one of the following ways: serial multiplexing, binding multiplexing, and compression multiplexing, where: serial multiplexing refers to, The multiple feedback information sequences to be multiplexed are sequentially connected in series to form a multiplexed feedback information sequence, wherein the information amount of the multiplexed feedback information sequence is equal to the sum of the information amounts of the multiple feedback information sequences; Means, the phase of each feedback information sequence in a plurality of feedback information sequences to be multiplexed Performing and operating with the information bits to obtain the value of the information bit in the multiplexed feedback information sequence, wherein the information amount of the multiplexed feedback information sequence is the same as the feedback information sequence having the largest information amount among the plurality of feedback information sequences
  • the compression multiplexing means that, for each feedback information sequence in the multiple feedback information sequences to be multiplexed, all the information bits of the feedback information sequence are operated and operated to obtain a compressed
  • the mapping module is configured to perform channel multiplexing on multiple time-frequency extended complex value sequences to obtain a multiplexing sequence:
  • the HARQ uplink feedback information generating module is configured to generate multiple pieces of feedback information and perform information multiplexing: multiple feedback information corresponding to multiple data packets transmitted by the base station in the same subframe; or, Multiple feedback information generated by multiple data packets transmitted in different subframes; or multiple feedback information corresponding to multiple sub-data packets included in the aggregated data packet transmitted by the base station; Or a mixture of the above; that is, a plurality of data packets transmitted by the base station in the same subframe, and/or a plurality of data packets transmitted by the base station in different subframes, and/or an aggregated data packet transmitted by the base station The plurality of sub-packets generate the plurality of feedback information.
  • the mapping module is configured to perform channel multiplexing by using multiple time-frequency extended complex value sequences from multiple feedback information: multiple feedback information corresponding to multiple data packets transmitted by the base station in the same subframe Or multiple feedback information corresponding to multiple data packets transmitted by the base station in different subframes; or multiple feedback information corresponding to multiple sub-packets included in the aggregated data packet transmitted by the base station; or a mixture of conditions; that is, multiple data packets transmitted by the base station in the same subframe, and/or multiple data packets transmitted by the base station in different subframes, and/or multiple sub-data included in the aggregated data packets transmitted by the base station Package, generated multiple feedback information.
  • the frequency domain extension module is configured to perform frequency domain extension processing on the modulated feedback information sequence by using a frequency domain extension sequence, where the frequency domain extension sequence is determined according to one or more of the following parameters:
  • the resource index of the corresponding physical uplink control channel of the relay node is set to the resource index of the corresponding physical uplink control channel of the relay node ( ⁇ , high-level configuration parameter N£", A ⁇ CH .
  • y [n) represents a complex value sequence after frequency domain expansion
  • N eeH is a cyclic shift length
  • the present invention provides a method and apparatus for processing ACK/NACK uplink feedback information for Backhaul Link, which effectively implements the RN to transmit HARQ uplink feedback information on the PUCCH of the backhaul link to the eNB, and, in addition, Since the Backhaul Link generally has a channel condition that is significantly better than that of the Direct Link, and the uplink transmission capability of the RN is superior to that of the UE, the present invention can fully utilize the Backhaul link channel condition and improve the transmission efficiency of the Backhaul Link uplink feedback information.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé utilisé sur la liaison terrestre pour traiter des informations de rétroaction en liaison montante pour une demande de répétition automatique hybride (HARQ). Le procédé comprend les étapes consistant à : générer un élément ou de multiples éléments d'informations de rétroaction pour les données reçues; obtenir la séquence d'informations de rétroaction par codage; obtenir la séquence d'informations de rétroaction après modulation; obtenir la séquence à valeur complexe après un étalement dans le domaine fréquentiel; obtenir la séquence à valeur complexe après un étalement dans le domaine temporel; et faire correspondre la séquence à valeur complexe après un étalement dans le domaine temporel avec les ressources physiques configurées par le système du canal physique de commande de liaison montante sur la liaison terrestre; ou effectuer un multiplexage de canal pour les multiples séquences à valeur complexe après un étalement dans le domaine temporel, obtenir la séquence multiplexée, faire correspondre la séquence multiplexée avec les ressources physiques de configuration de système du canal physique de commande de liaison montante sur la liaison terrestre. La présente invention se rapporte également à un dispositif permettant de traiter les informations de rétroaction en liaison montante pour une demande HARQ. La présente invention peut utiliser pleinement l'état de canal de la liaison terrestre et améliorer l'efficacité de transmission des informations de rétroaction en liaison montante de la liaison terrestre.
PCT/CN2010/077367 2009-09-29 2010-09-27 Procédé et dispositif permettant de traiter des informations de rétroaction en liaison montante pour une demande harq WO2011038665A1 (fr)

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CN200910176394.5A CN102035633B (zh) 2009-09-29 2009-09-29 用于回程链路的harq上行反馈信息的处理方法和装置
CN200910176394.5 2009-09-29

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CN104754742B (zh) * 2013-12-25 2019-02-05 中国移动通信集团公司 一种资源分配方法及装置
AR103887A1 (es) * 2015-03-09 2017-06-14 ERICSSON TELEFON AB L M (publ) Canal pucch breve en canal spucch de enlace ascendente
FR3048574A1 (fr) * 2016-03-07 2017-09-08 Orange Selection d'une instanciation de tranche de reseau pour la transmission de paquets montants
CN107592189B (zh) * 2016-07-06 2020-07-14 华为技术有限公司 一种传输方法、用户设备及基站
CN109995484B (zh) * 2017-12-29 2021-01-22 电信科学技术研究院 一种数据传输、接收方法、终端及基站

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CN101309132A (zh) * 2008-06-20 2008-11-19 中兴通讯股份有限公司 上行确认信息的物理上行控制信道发送方法
WO2009022293A2 (fr) * 2007-08-14 2009-02-19 Nokia Corporation Structure de transmission variable pour des signaux de référence dans des messages de liaison montante
CN101478383A (zh) * 2009-02-03 2009-07-08 中兴通讯股份有限公司 一种长期演进系统中的下行子帧应答信息的反馈方法

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WO2009022293A2 (fr) * 2007-08-14 2009-02-19 Nokia Corporation Structure de transmission variable pour des signaux de référence dans des messages de liaison montante
CN101309132A (zh) * 2008-06-20 2008-11-19 中兴通讯股份有限公司 上行确认信息的物理上行控制信道发送方法
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