CN110574320A - A HARQ feedback method and terminal equipment for eMTC - Google Patents

A HARQ feedback method and terminal equipment for eMTC Download PDF

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Publication number
CN110574320A
CN110574320A CN201780090121.1A CN201780090121A CN110574320A CN 110574320 A CN110574320 A CN 110574320A CN 201780090121 A CN201780090121 A CN 201780090121A CN 110574320 A CN110574320 A CN 110574320A
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CN
China
Prior art keywords
pucch
harq process
set format
harq
nack
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CN201780090121.1A
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Chinese (zh)
Inventor
陈冬明
何朗
吴环宇
陈雍珏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN110574320A publication Critical patent/CN110574320A/en
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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
    • 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

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

Abstract

一种针对eMTC的HARQ反馈方法及终端设备，用于解决现有技术中当使用多个HARQ进程时，PUCCH对于每一个HARQ进程都分别进行反馈，会造PUCCH资源开销大的问题。终端设备确定出自身可调用的最大混合自动重传请求HARQ进程数；所述终端设备在接收到的各个HARQ进程达到所述最大HARQ进程数时，将所述接收到的各个HARQ进程的确认应答ACK/否定应答NACK合并成设定格式的PUCCH，其中，所述接收到的HARQ进程中的每个HARQ进程的ACK/NACK使用所述设定格式的PUCCH中的一个比特位表示；所述终端设备将合并后的所述设定格式的PUCCH发送给基站。

A HARQ feedback method for eMTC and a terminal device, which are used to solve the problem in the prior art that when multiple HARQ processes are used, PUCCH performs feedback for each HARQ process separately, which will cause large PUCCH resource overhead. The terminal device determines the maximum number of hybrid automatic repeat request HARQ processes that can be called by itself; when the received HARQ processes reach the maximum number of HARQ processes, the terminal device responds to the received confirmation of each HARQ process The ACK/negative acknowledgment NACK is combined into a PUCCH with a set format, wherein the ACK/NACK of each HARQ process in the received HARQ process is represented by a bit in the PUCCH with a set format; the terminal The device sends the combined PUCCH with the set format to the base station.

Description

PCT国内申请，说明书已公开。PCT domestic application, specification has been published.

Claims (15)

  1. A HARQ feedback method for eMTC, the method comprising:
    the terminal equipment determines the maximum hybrid automatic repeat request (HARQ) process number which can be called by the terminal equipment;
    the terminal equipment combines Acknowledgement (ACK)/Negative Acknowledgement (NACK) of each received HARQ process into a PUCCH with a set format when each received HARQ process reaches the maximum HARQ process number, wherein the ACK/NACK of each received HARQ process is represented by one bit in the PUCCH with the set format;
    and the terminal equipment sends the combined PUCCH with the set format to a base station.
  2. The method of claim 1, wherein the terminal device sends the combined PUCCH with the set format to a base station, and wherein the method comprises:
    and the terminal equipment repeatedly sends the combined PUCCH with the set format to the base station according to the preset retransmission times.
  3. The method according to claim 1 or 2, wherein bits for feeding back ACK/NACK of each HARQ process are preset in the PUCCH of the set format.
  4. A HARQ feedback method for eMTC, the method comprising:
    the terminal equipment determines the maximum hybrid automatic repeat request (HARQ) process number which can be called by the terminal equipment;
    if the HARQ process received by the terminal equipment does not reach the maximum HARQ process number and the terminal equipment does not receive the data sent by the base station on the subframes with more than the continuous set number, the terminal equipment combines the received acknowledgement ACK/NACK of the HARQ process into a PUCCH with a set format, wherein the received ACK/NACK of each HARQ process in each HARQ process is represented by one bit in the PUCCH with the set format;
    and the terminal equipment sends the combined PUCCH with the set format to a base station.
  5. The method of claim 4, wherein the terminal device sends the combined PUCCH with the set format to a base station, and comprises:
    and the terminal equipment repeatedly sends the combined PUCCH with the set format to the base station according to the preset retransmission times.
  6. The method according to claim 4 or 5, wherein the bits for feeding back the ACK/NACK for each HARQ process are preset in the PUCCH with the set format.
  7. A terminal device, characterized in that the terminal device comprises:
    the determining module is used for determining the maximum hybrid automatic repeat request (HARQ) process number which can be called by the determining module;
    a receiving module, configured to combine, when each received HARQ process reaches the maximum number of HARQ processes, ACK/NACK of each received HARQ process into a PUCCH in a set format, where the ACK/NACK of each received HARQ process is represented by one bit in the PUCCH in the set format;
    and the sending module is used for sending the combined PUCCH with the set format to a base station.
  8. The terminal device of claim 7, wherein the sending module is specifically configured to:
    and repeatedly sending the combined PUCCH with the set format to the base station according to the preset retransmission times.
  9. The terminal device according to claim 7 or 8, wherein bits for feeding back ACK/NACK of each HARQ process are preset in the PUCCH of the set format.
  10. A terminal device, characterized in that the terminal device comprises:
    the determining module is used for determining the maximum hybrid automatic repeat request (HARQ) process number which can be called by the determining module;
    a receiving module, configured to, if a received HARQ process does not reach the maximum HARQ process number and the terminal device has not received data sent by the base station on subframes exceeding a consecutive set number, combine received acknowledgement/negative acknowledgement (ACK/NACK) of the HARQ process into a PUCCH with a set format, where the received ACK/NACK of each HARQ process in each HARQ process is represented by one bit in the PUCCH with the set format;
    and the sending module is used for sending the combined PUCCH with the set format to a base station.
  11. The terminal device of claim 10, wherein the sending module is specifically configured to:
    and repeatedly sending the combined PUCCH with the set format to the base station according to the preset retransmission times.
  12. The terminal device according to claim 10 or 11, wherein bits for feeding back ACK/NACK of each HARQ process are preset in the PUCCH of the set format.
  13. A terminal device, characterized in that the terminal device comprises:
    a memory for storing program instructions;
    a transceiver for wireless data transmission with a base station;
    the processor is used for calling the program instructions stored in the memory and determining the maximum hybrid automatic repeat request (HARQ) process number which can be called by the processor; and when each HARQ process received by the transceiver reaches the maximum HARQ process number, combining the received acknowledgement ACK/negative acknowledgement NACK of each HARQ process into a PUCCH with a set format, wherein the ACK/NACK of each HARQ process in the received HARQ processes is represented by one bit in the PUCCH with the set format, and transmitting the combined PUCCH with the set format to a base station through the transceiver.
  14. The terminal device of claim 13, wherein the processor is specifically configured to:
    and repeatedly sending the combined PUCCH with the set format to the base station according to the preset retransmission times.
  15. The terminal device according to claim 13 or 14, wherein bits for feeding back ACK/NACK of each HARQ process are preset in the PUCCH of the set format.
CN201780090121.1A 2017-05-02 2017-05-02 A HARQ feedback method and terminal equipment for eMTC Pending CN110574320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/082766 WO2018201294A1 (en) 2017-05-02 2017-05-02 Harq feedback method for emtc and terminal device

Publications (1)

Publication Number Publication Date
CN110574320A true CN110574320A (en) 2019-12-13

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Cited By (1)

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WO2023010449A1 (en) * 2021-08-05 2023-02-09 Huizhou Tcl Cloud Internet Corporation Technology Co. Ltd User equipment, base station, and wireless communication method for unicast and/or mbs

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CN114342295B (en) 2019-09-12 2024-06-07 联想(北京)有限公司 Scheduling enhancements for EMTC
US12016027B2 (en) 2020-02-25 2024-06-18 Qualcomm Incorporated Consolidated feedback indication and feedback transmission

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CN101267384A (en) * 2007-03-13 2008-09-17 松下电器产业株式会社 Method and device for reducing the amount of feedback information in an adaptive multiple data stream transmission system
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