WO2007090357A1 - Procédé, dispositif et système de répétition automatique hybride - Google Patents

Procédé, dispositif et système de répétition automatique hybride Download PDF

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Publication number
WO2007090357A1
WO2007090357A1 PCT/CN2007/000487 CN2007000487W WO2007090357A1 WO 2007090357 A1 WO2007090357 A1 WO 2007090357A1 CN 2007000487 W CN2007000487 W CN 2007000487W WO 2007090357 A1 WO2007090357 A1 WO 2007090357A1
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WO
WIPO (PCT)
Prior art keywords
data
module
unit
blocks
data unit
Prior art date
Application number
PCT/CN2007/000487
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English (en)
Chinese (zh)
Inventor
Deping Liu
Xin Han
Linhong Chen
Sha Ma
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 200610008772 external-priority patent/CN101018108A/zh
Priority claimed from CN 200610067258 external-priority patent/CN101034959A/zh
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007090357A1 publication Critical patent/WO2007090357A1/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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]

Definitions

  • the present invention relates to communication technologies, and in particular, to a hybrid automatic retransmission method, apparatus, and system.
  • ARQ Automatic Repeat ReQuest
  • ARQ is a transmission mechanism used to ensure the reliability of transmission. When a current attempt fails to transmit, it is required to retransmit the data unit that failed to transmit.
  • HARQ Hybrid ARQ
  • FEC subsystem is used to correct errors to reduce the number of retransmissions.
  • Stop and Wait SAW is the simplest form of HARQ: The sender only starts processing the next data unit after the transmitted data unit is correctly received. The receiver should transmit a signal to the sender for transmission.
  • the response information of the data unit is correctly decoded, generally to confirm the correct information and confirm the error information (AC / NAK, ACI nowledgement / Negative AcKnowledgement), this confirmation information generally uses one bit.
  • the N-channel, etc., HARQ (N-channel-SAW- HARQ) is a HARQ process in which N SAWs are simultaneously performed in parallel on one channel.
  • the uplink is used to transmit response information for other HARQ processes.
  • the data unit refers to a data block to which a check code (such as a cyclic redundancy check code CRC) is added.
  • OFDM Orthogonal Frequency Division Multiplexing
  • TTL time transmission unit
  • Multiple resource blocks are allocated, and each resource block transmits a part of data of one MAC PDU.
  • Each resource block may be in error during transmission, and each MAC PDU needs to be checked and received as a whole. Therefore, if the data transmitted by one resource block is in error, it may cause all the MAC PDUs to be retransmitted. The more the number of blocks, the more likely it is to go wrong.
  • the technical solution of retransmission of the above data wastes data transmission resources and time, and the data transmission efficiency is low.
  • the physical layer of the receiving end needs to collect the data transmitted by all the resource blocks and perform the check processing. Therefore, the receiving end performs the verification processing on the data for a long time.
  • the specific process is as follows: The upper layer of the transmitting end hands over a data block to the physical layer, and after receiving the MAC PDU, the physical layer cuts the data into a plurality of data blocks, adds a check code to each data block, and performs coding and modulation processing. At the same time, the transmission unit transmits to the receiving end.
  • a high level is a layer immediately adjacent to the physical layer.
  • the receiving end physical layer performs demodulation and decoding check processing on each data unit in the same time transmission unit. If all the data units are correct, the receiving end physical layer restores all the data blocks into one data block to the upper layer, and transmits to the transmitting end.
  • the physical layer feeds back an ACK signal; if one or more of the physical layer data blocks are incorrect, the receiving end is physically
  • the layer will feed back a NACK signal to the physical layer of the transmitting end, and notify the transmitting end to retransmit all the data blocks.
  • the receiving end physical layer can perform parallel receiving processing on each data block in the same time transmission unit, since the receiving end notifies the transmitting end to retransmit all the data units when one or more data blocks are wrong, there is also an invalid weight. The possibility of transmission, wasting data transmission resources and time, resulting in inefficient data transmission.
  • the hybrid automatic retransmission method has the disadvantage that, in the data transmission process, if the transmitting end receives the NACK response information fed back by the receiving end, even if it is only one physical layer data belonging to the upper layer data block. If the block is faulty, the sender must also retransmit all physical layer data blocks belonging to the same high-level data block, thereby wasting physical resources and reducing transmission efficiency.
  • Embodiments of the present invention provide a hybrid automatic retransmission method apparatus and system, which can reduce data processing delay at a receiving end, and can effectively avoid an invalid retransmission problem, thereby improving data transmission efficiency.
  • An embodiment of the present invention provides a hybrid automatic retransmission method, including:
  • the transmitting end sends the plurality of data units to the receiving end at the same time;
  • the receiving end performs demodulation decoding, verification processing and sorting storage for each data unit, and sends corresponding response information of each data unit to the transmitting end;
  • the transmitting end performs data retransmission on the erroneous data unit that has not reached the maximum number of retransmissions according to the response information; after receiving the retransmitted data unit, the receiving end performs merging, demodulation decoding, and checksum sorting storage, and sends the data to the transmitting unit.
  • the terminal sends the corresponding response information of each data unit correctly.
  • An embodiment of the present invention provides a hybrid automatic retransmission sending apparatus, including: a data sending module and a data feedback result processing module;
  • the data sending module is configured to send, by the transmitting unit, the data unit encapsulated by the plurality of data blocks to the receiving end at the same time;
  • the data feedback result processing module is configured to receive response information of the data unit, and perform data retransmission on the erroneous data unit that does not reach the maximum number of retransmissions according to the response information.
  • An embodiment of the present invention provides a hybrid automatic retransmission receiving apparatus, including: a data receiving module, a response module, and a sorting storage module;
  • the data receiving module is disposed at a physical layer, configured to receive a data unit, perform merging, demodulating, decoding, and receiving each of the received data units, and send the verification result to the response module;
  • the response module is disposed at the physical layer, and configured to send the response information according to the verification result of the data receiving module;
  • the sorting storage module is disposed at a physical layer for sorting data units received by the data receiving module.
  • the embodiment of the invention provides a hybrid automatic retransmission system, comprising: the foregoing hybrid automatic retransmission transmitting device and hybrid automatic retransmission receiving device.
  • the transmitting end can use multiple HARQ processes to transmit multiple data units to the receiving end at the same time, and the receiving end can verify each data unit at the same time, so that the data unit processing at the receiving end can be reduced. Delay
  • the receiving end performs HARQ feedback to the transmitting end for each data unit, so that the data unit can be effectively prevented from being retransmitted in an invalid manner, and the data unit transmission resources and time are saved, thereby greatly improving the data unit transmission efficiency.
  • FIG. 1 is a flow chart of a method according to an embodiment of the present invention.
  • Embodiment 1 is a flow chart of Embodiment 1 of the method according to an embodiment of the present invention.
  • Embodiment 2 is a flow chart of Embodiment 2 of the method according to the embodiment of the present invention.
  • FIG. 4A is a diagram showing an example of a structure of a data transmitting module in an automatic hybrid retransmission transmitting apparatus according to an embodiment of the present invention
  • FIG. 4B is a second structural diagram of a data transmitting module in an automatic hybrid retransmission transmitting apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • a technical solution of an embodiment of the present invention includes:
  • Step A The transmitting end sends a plurality of data units to the receiving end at the same time.
  • Step B The receiving end performs demodulation decoding, verification processing, and sorting storage on each data unit, and sends the data to the transmitting end. Send the corresponding response information of each data unit correctly.
  • Step c The transmitting end performs data retransmission on the erroneous data unit that does not reach the predetermined maximum number of retransmissions according to the response information.
  • Step D After receiving the retransmitted data unit, the physical layer of the receiving end performs combining, demodulating, decoding, verifying, and sorting storage, and transmitting corresponding response information of each data unit to the transmitting end.
  • multiple data units in step A are generated by the upper layer of the sending end, and the other is generated.
  • the plurality of data units in step A are generated after the correlation processing is performed by the physical layer of the transmitting end.
  • the high layer referred to in the embodiment of the present invention refers to a layer immediately adjacent to the physical layer.
  • the WCDMA system it may refer to the medium access control layer MAC, and for the implemented wireless communication system, it may refer to the evolved medium access control layer E-MAC, but may also be other layers.
  • Step 1A The transmitting end layer submits a plurality of data blocks to the physical layer of the transmitting end, and the physical layer of the transmitting end encapsulates the plurality of data blocks into data units respectively; and sends the encapsulated data units to the transmitting unit at the same time. Receiving end.
  • the upper layer of the transmitting end splits the data to be transmitted into multiple data blocks according to the amount of data transmitted by the upper layer; or, the upper layer of the transmitting end splits into multiple data blocks according to the service type of the data to be transmitted (the splitting method) It is not limited to the method enumerated in the embodiment); the determined plurality of data blocks are delivered to the physical layer.
  • the physical layer adds an error detection code (such as a cyclic redundancy check code) to the received data block and encapsulates it into a data unit, and performs code modulation and transmission at the same time transmission unit.
  • the upper layer of the transmitting end may determine whether it is necessary to split a plurality of data blocks according to a certain scheduling algorithm according to a current channel condition and a service characteristic.
  • Step 1B The receiving end physical layer demodulates, decodes, checks, and sorts the received data unit, and sets corresponding response information according to the verification result to send to the sending end.
  • the response information includes ACK and NAK.
  • Step 1C After receiving the response message, the sender retransmits the data unit that has transmitted the error but has not reached the maximum number of retransmissions.
  • Step 1D After receiving the retransmitted data unit, the physical layer of the receiving end performs combining, demodulating, decoding, verifying, and sorting storage, and transmitting corresponding response information of each data unit to the transmitting end.
  • the physical layer of the receiving end After receiving the retransmitted data unit, the physical layer of the receiving end performs combining, demodulating, decoding, verifying, and sorting storage, and transmitting corresponding response information of each data unit to the transmitting end.
  • Step 2A The physical layer of the transmitting end cuts the data block submitted by the upper layer of the transmitting end into multiple sub-blocks, and respectively Encapsulated into data units; in the same time transmission unit, the encapsulated data unit is sent to the receiving end.
  • the physical layer of the transmitting end cuts the data block that needs to be transmitted according to the optimal processing capability of the encoder or the amount of information that the unit transmission unit can carry. If the data block submitted by the upper layer of the transmitting end exceeds the optimal processing capability of the encoder or the amount of information that can be carried by the unit transmission unit, the data block is cut into a plurality of sub-blocks to ensure that each sub-block is in the encoder.
  • the optimal processing power is either within the range of the amount of information that the unit transmission unit can carry.
  • an error detection code (such as a cyclic redundancy check code) is added to the cut sub-blocks to be encapsulated into data units, stored, and coded and modulated, and then transmitted at the same time.
  • the unit transmission unit is a time-frequency two-dimensional quantity.
  • Step 2B The receiving end performs demodulation decoding, verification processing, and sorting storage for each data unit, and sends corresponding response information of each data unit to the transmitting end.
  • the process of sorting and storing may be: sorting according to the check result according to the order of the received data units in the sending end. After that, the correct sub-block is stored and stored.
  • the stored form can be the decoded value or other methods.
  • the data unit transmitting the correct sub-block and the transmission error may be stored at the same time, and the stored form may be a value before demodulation, a value after soft demodulation or a value after soft decoding, or may be other methods. In this case, the data unit that transmitted the error is used for merging with the corresponding retransmitted data unit.
  • Step 2C The transmitting end performs data retransmission on the erroneous data unit according to the response information
  • the physical layer of the transmitting end After receiving the response information, the physical layer of the transmitting end determines the encoding mode and the modulation mode and then performs code modulation on the data unit that transmits the error, and maps the erroneous one or more data units to the unit transmission unit for retransmission. Until the response information fed back by the physical layer of the receiver, the data unit transmits correctly or the number of retransmissions reaches a predetermined maximum number of retransmissions, and the corresponding storage unit can be emptied.
  • the foregoing determining the coding mode and the modulation mode may be: the high layer sends a coded modulation format selected according to a current physical channel condition, or the system presets a coded modulation format.
  • the coded modulation format may be the same as or different from the original coding and modulation format of the data unit.
  • Step 2D After receiving the retransmitted data unit, the receiving end physical layer performs merging, demodulation decoding, and checksum sorting storage, and sends corresponding response information of each data unit to the transmitting end.
  • the above merged process is prior art, directly performing demodulation decoding and verification or combining with stored corresponding data units, such as maximum ratio combining, equal gain combining or other combining manner.
  • Demodulation (also before the combination) is performed for decoding and verification, and corresponding response information is set and sent to the transmitting end according to the verification result.
  • the correct sub-blocks are received, and the order of the HARQ process numbers of each data unit or the order of the physical resources is reordered with other sub-blocks that are received correctly by the receiving end physical layer.
  • Storage transfer The correct sub-block, or similar to the above, includes the transmission of the correct sub-block and the transmission of the data unit.
  • Step 2E When all sub-blocks are transmitted correctly or the number of retransmissions of the erroneous sub-data unit reaches a predetermined maximum number of retransmissions, the physical layer of the receiving end combines all the sub-blocks received into one total data block or reorders. After that, a total data block is formed and sent to the upper layer of the receiving end.
  • the ordering principle is the same as the ordering principle in the above steps. All of the sub-blocks include the transmission of the correct sub-block and the erroneous data unit that retransmits more than the maximum number of retransmissions.
  • the multiple data units may belong to different hybrid automatic repeat (HARQ) processes, or may belong to the same HARQ process;
  • the response information generally includes ACK and NAK, when multiple data
  • the response information may be sorted according to the order of the HARQ process numbers, and the sorted response information is sent to the sending end.
  • the information may be occupied. The order of the physical resources is sorted, the response information is sorted, and the sorted response information is sent to the sender.
  • the receiving end sending the response information to the sending end may be as follows:
  • Manner 1 Send the response message to the sender using the code division method.
  • the codeword corresponding to each process/data unit is determined according to each process number/data unit or according to a predetermined algorithm, and the response information is modulated to be transmitted to the corresponding codeword.
  • the process number refers to a HARQ process number, which is used to identify different HARQ processes.
  • Manner 2 Send a response message to the sender in frequency division mode.
  • the specific process is as follows: Assume that the system only allows a maximum of 8 data units to be transmitted simultaneously.
  • the receiving end divides the bandwidth used for transmitting the response information into 8 sub-bands, then establishes a correspondence between each sub-band and each process number/data unit and notifies the transmitting end.
  • the receiving end physical layer needs to feed back the response information of each data unit to the physical layer of the transmitting end, the response information of each data unit is sent to the sending by the sub-band corresponding to the data unit or the process corresponding to the data unit.
  • the physical layer of the transmitting end determines the corresponding process number or data unit response information according to the correspondence between the subband and the process number/data unit.
  • Manner 3 When the receiving end sends the response information of each data unit to the sending end, it needs to carry the information indicating the corresponding process number. In this manner, the physical layer of the transmitting end determines whether the data of the corresponding process is correctly received according to the response information carrying the corresponding process number information.
  • the receiving end may carry the response information of each data unit in the response channel and send it to the sending end; or may transmit the response information of the multiple data units to The same acknowledgement channel is sent to the sender.
  • the response channel refers to a channel for carrying user response information.
  • the embodiment of the present invention further provides a hybrid automatic retransmission sending device.
  • the sending device in this embodiment includes: a data sending module and a data feedback result processing module.
  • the data sending module is configured to send, by the transmitting unit, the data unit encapsulated by the plurality of data blocks to the receiving end at the same time;
  • the data sending module may further be: a first sending data determining module and a first sending module.
  • the first sending data determining module is disposed at a higher layer, and is configured to split the data transmitted by the upper layer into a plurality of data blocks and send the data to the physical layer;
  • the first sending module is configured to be configured to encapsulate the plurality of data blocks into data units, and send the encapsulated data units to the receiving end in the same time transmission unit.
  • the data sending module may further include: a determining module and a second sending data determining module, and a first sending module, where the determining module is configured to use a certain scheduling algorithm according to a current scheduling algorithm.
  • the channel status and the service characteristic determine whether it is necessary to split the data transmitted by the upper layer into a plurality of data blocks;
  • the second sending data determining module is disposed at a higher layer, and is configured to: according to the determining module, the data transmitted by the upper layer when determining that the splitting is needed Splitting into multiple data blocks and transmitting to the physical layer;
  • the first sending module is disposed at the physical layer, and is configured to encapsulate the plurality of data blocks into data units respectively; and at the same time, the encapsulated data in the transmission unit The unit is sent to the receiving end.
  • the data sending module may further be: a cutting module and a second sending module; the cutting module is disposed at a physical layer, and is configured to cut a data block submitted by a higher layer into multiple sub-blocks.
  • the cutting principle may be: cutting a portion of the data block to be transmitted that exceeds an optimal processing capability of the encoder or an amount of information that the unit transmission unit can carry; the second sending module is disposed at the physical layer, and is configured to: The plurality of sub-blocks generated by the dicing module are respectively encapsulated into data units; and in the same time transmission unit, the encapsulated data units are sent to the receiving end.
  • the data feedback result processing module is configured to receive response information of the data unit, and perform data retransmission on the erroneous data unit that does not reach the maximum number of retransmissions according to the response information.
  • the embodiment of the present invention further provides a hybrid automatic retransmission receiving device.
  • the receiving device in this embodiment includes: a data receiving module, a response module, and a sorting storage module.
  • the data receiving module is disposed at a physical layer, configured to receive a data unit, perform merging, demodulating, decoding, and receiving each of the received data units, and send the verification result to the response module.
  • the response module is disposed at the physical layer, and configured to send a response message according to the verification result of the data receiving module Interest.
  • the sorting storage module is disposed at the physical layer for sorting the data unit received by the storage data receiving module, and can store and transmit the correct data unit, or simultaneously store the data unit with the correct data unit and the transmission error.
  • the device When the received data unit is a sub-data block after the physical layer of the transmitting end is cut, the device further includes:
  • the data reporting module is configured at the physical layer, and is configured to form all the total data data blocks into a total data when the number of retransmissions of all sub-blocks transmitted correctly or the wrong sub-data unit reaches a predetermined maximum number of retransmissions. After the block or reordering, a total data block is formed and sent to the upper layer of the receiving end.
  • the all sub-blocks include erroneous data units that transmit the correct sub-blocks and retransmits more than the maximum number of retransmissions.
  • an embodiment of the present invention further provides a hybrid automatic retransmission system, where the system includes a transmitting device and a receiving device, and the transmitting device is provided with: a data sending module and a data feedback result processing module.
  • the data sending module is configured to send, by the transmitting unit, the data unit encapsulated by the plurality of data blocks to the receiving end at the same time;
  • the data sending module may further be: a first sending data determining module and a first sending module.
  • the first sending data determining module is disposed at a higher layer, and is configured to split the data transmitted by the upper layer into a plurality of data blocks and send the data to the physical layer;
  • the first sending module is configured to be configured to encapsulate the plurality of data blocks into data units, and send the encapsulated data units to the receiving end in the same time transmission unit.
  • the data sending module may further include: a determining module, a second sending data determining module, and a first sending module, where the determining module is configured to determine, according to a certain scheduling algorithm, current channel conditions and service characteristics. Whether it is necessary to split the data transmitted by the upper layer into a plurality of data blocks; the second sending data determining module is disposed at a high level, and is configured to split the data transmitted by the upper layer into multiple data according to the determining module when determining that the splitting is needed The block is sent to the physical layer; the first sending module is disposed at the physical layer, and is configured to encapsulate the plurality of data blocks into data units respectively; and in the same time transmission unit, send the encapsulated data unit to the receiving end.
  • a determining module is configured to determine, according to a certain scheduling algorithm, current channel conditions and service characteristics.
  • the second sending data determining module is disposed at a high level, and is configured to split the data transmitted by the upper layer into multiple data according to the determining module when determining that
  • the data sending module may further be: a cutting module and a second sending module; the cutting module is disposed at a physical layer, and is configured to cut the data blocks submitted by the higher layer into a plurality of sub-blocks.
  • the cutting principle may be: cutting a portion of the data block to be transmitted that exceeds an optimal processing capability of the encoder or an amount of information that the unit transmission unit can carry; the second sending module is disposed at the physical layer, and is configured to: Generated by the cutting module The plurality of sub-blocks are respectively encapsulated into data units; and the encapsulated data units are sent to the receiving end in the same time transmission unit.
  • the data feedback result processing module is configured to receive response information of the data unit, and perform data retransmission on the erroneous data unit that does not reach the maximum number of retransmissions according to the response information.
  • the receiving device includes: a data receiving module, a response module, and a sorting storage module.
  • the data receiving module is disposed at a physical layer, configured to receive a data unit, perform merging, demodulating, decoding, and receiving each of the received data units, and send the verification result to the response module.
  • the response module is disposed at the physical layer, and configured to send the response information according to the verification result of the data receiving module.
  • the sorting storage module is disposed at the physical layer for sorting the data unit received by the storage data receiving module, and can store and transmit the correct data unit, or simultaneously store the data unit with the correct data unit and the transmission error.
  • the device When the received data unit is a sub-data block after the physical layer of the transmitting end is cut, the device further includes:
  • the data reporting module is configured at the physical layer, and is configured to form all the total data data blocks into a total data when the number of retransmissions of all sub-blocks transmitted correctly or the wrong sub-data unit reaches a predetermined maximum number of retransmissions. After the block or reordering, a total data block is formed and sent to the upper layer of the receiving end.
  • the all sub-blocks include erroneous data units that transmit the correct sub-blocks and retransmits more than the maximum number of retransmissions.

Abstract

L'invention concerne un procédé, un dispositif et un système de répétition automatique hybride. Le côté émetteur transmet un certain nombre d'unités de données au côté récepteur dans le même intervalle temporel de transmission. Le côté récepteur démodule, décode et vérifie chaque unité de données, et transmet des informations de réponse indiquant si les unités de données sont correctes ou non au côté émetteur. Le côté émetteur retransmet l'unité de données non transmise avec succès pendant la durée de transmission maximale HARQ en fonction des informations de réponse. Suite à la réception de l'unité de données retransmise, la couche physique du côté récepteur combine, démodule, décode, vérifie, ordonne, stocke et transmet les informations de réponse indiquant si chaque unité de données correspondante est correcte ou non au côté émetteur. L'invention permet de sauvegarder les ressources physiques, de réduire la durée de traitement pour le bloc de données et d'augmenter l'efficacité de la transmission de données.
PCT/CN2007/000487 2006-02-10 2007-02-12 Procédé, dispositif et système de répétition automatique hybride WO2007090357A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 200610008772 CN101018108A (zh) 2006-02-10 2006-02-10 数据传输方法和系统及数据发送和接收装置
CN200610008772.5 2006-02-10
CN200610067258.9 2006-03-10
CN 200610067258 CN101034959A (zh) 2006-03-10 2006-03-10 混合自动重传方法及其装置和系统

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CN108023689A (zh) * 2016-11-04 2018-05-11 华为技术有限公司 重传方法及设备
CN110913431A (zh) * 2019-11-27 2020-03-24 深圳云博智联科技有限公司 数据无线传输方法、装置、计算机设备及存储介质
CN115085872A (zh) * 2022-03-09 2022-09-20 网易（杭州）网络有限公司 数据处理方法及装置、存储介质、电子设备

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CN1411244A (zh) * 2001-09-29 2003-04-16 华为技术有限公司 在高速媒体接入控制层实现数据重传的方法
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CN1524364A (zh) * 2001-05-18 2004-08-25 ��˹��ŵ�� 分组按序的混合自动重复请求(harq)方案
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Publication number Priority date Publication date Assignee Title
CN108023689A (zh) * 2016-11-04 2018-05-11 华为技术有限公司 重传方法及设备
WO2018082679A1 (fr) * 2016-11-04 2018-05-11 华为技术有限公司 Procédé et dispositif de retransmission
US10972232B2 (en) 2016-11-04 2021-04-06 Huawei Technologies Co., Ltd. Retransmission method and device
CN110913431A (zh) * 2019-11-27 2020-03-24 深圳云博智联科技有限公司 数据无线传输方法、装置、计算机设备及存储介质
CN115085872A (zh) * 2022-03-09 2022-09-20 网易（杭州）网络有限公司 数据处理方法及装置、存储介质、电子设备

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