CN114846899A - Multi-hop path data transmission method and related device - Google Patents

Multi-hop path data transmission method and related device Download PDF

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Publication number
CN114846899A
CN114846899A CN201980103190.0A CN201980103190A CN114846899A CN 114846899 A CN114846899 A CN 114846899A CN 201980103190 A CN201980103190 A CN 201980103190A CN 114846899 A CN114846899 A CN 114846899A
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China
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control information
information
sending
path
indication information
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CN201980103190.0A
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Chinese (zh)
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张莉莉
张鹏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

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

Abstract

The embodiment of the invention discloses a multi-hop path data transmission method and a related device, wherein the multi-hop path comprises a first device, a second device and a third device, the first device is a source device, the second device is a target device, and the method comprises the following steps: the third equipment receives first control information from the first equipment, wherein the first control information comprises a source identifier and a destination identifier; and the third equipment transfers the data scheduled by the first control information according to the path indication information, wherein the path indication information is used for indicating the target transmission path. By adopting the embodiment of the invention, the equipment in the multi-hop path can autonomously confirm data forwarding, and the flexibility and efficiency of data transmission in the multi-hop path are improved.

Description

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

Claims (31)

  1. A multi-hop path data transmission method is characterized in that a multi-hop path comprises a first device, a second device and a third device, the first device is a source device, the second device is a target device, and the method comprises the following steps:
    the third equipment receives first control information from the first equipment, wherein the first control information comprises a source identification and a destination identification;
    and the third equipment transfers the data scheduled by the first control information according to path indication information, wherein the path indication information is used for indicating a target transmission path.
  2. The method of claim 1 wherein the first control information is first Sidelink Control Information (SCI).
  3. The method of claim 2 wherein the first SCI is, or is either the primary SCI or the secondary SCI.
  4. The method according to claim 1, wherein the path indication information includes information indicating the target transmission path or information indicating a target relay device;
    wherein the information for indicating the target transmission path includes at least one of:
    an identifier of a transmission path including the first device, the target relay device, and the second device;
    the identification of the transmission path comprising the target transfer device and the second device;
    including an identification of a transmission path of the second device; and
    an identification of a transmission path including the first device and the second device;
    the information for indicating the target relay apparatus includes at least one of:
    the equipment identification of the target transfer equipment;
    a device identification of the first device;
    a device identification of the second device;
    wherein the target relay apparatus includes the third apparatus.
  5. The method of claim 1, wherein relaying, by the third device, the data scheduled by the first control information according to the path indication information comprises:
    the third equipment determines whether to transfer the side link data scheduled by the first control information according to the acquired path indication information;
    and when the third device determines to relay the sidelink data scheduled by the first control information, the third device sends second control information, wherein the second control information comprises the source identifier and the destination identifier.
  6. The method of claim 5 wherein the second control information is a second SCI.
  7. The method of claim 6 wherein the second SCI is, or is either the primary SCI or the secondary SCI.
  8. The method according to claim 1 or 4, wherein the path indication information comprises link quality information of the target transmission path.
  9. The method according to any of claims 5-7, wherein the first control information further comprises priority indication information; the third device sends second control information, including:
    and when the third equipment detects that the priority indication information is greater than or equal to a first preset threshold, the second control information is sent.
  10. The method of claim 8, wherein the first control information further comprises priority indication information; the third device sends second control information, including:
    and when the third equipment detects that the priority indication information is greater than or equal to a first preset threshold, the third equipment sends the second control information according to the link quality information.
  11. The method according to any of claims 5-7, wherein the path indication information comprises a transmission decision factor of the third device; the third device sends second control information, including:
    the third device generates a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second control information.
  12. The method according to any of the claims 8, wherein the path indication information comprises a transmission decision factor of the third device; the third device sends second control information, including:
    the third device generates a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second control information according to the link quality information.
  13. The method according to any of claims 5-7, wherein the first control information further comprises priority indication information; the path indication information includes a transmission decision factor of the third device; the third device sends second control information, including:
    when the third device detects that the priority indication information is smaller than the first preset threshold, generating a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second SCI according to the link quality information.
  14. The method according to any one of claims 1 to 13, wherein the obtaining of the path indication information includes any one of: obtaining through pre-configuration; and obtaining from the network device through signaling, wherein the signaling is at least one of Radio Resource Control (RRC) signaling, Media Access Control (MAC) signaling or physical layer signaling.
  15. A multi-hop path data transmission device is applied to a third device, wherein the multi-hop path comprises a first device, a second device and a third device, the first device is a source device, and the second device is a target device; the device comprises:
    a transceiving unit, configured to receive first control information from the first device, where the first control information includes a source identifier and a destination identifier; and the data scheduling unit is further configured to relay the data scheduled by the first control information according to path indication information, where the path indication information is used to indicate a target transmission path.
  16. The apparatus of claim 15 wherein the first control information is first Sidelink Control Information (SCI).
  17. The apparatus of claim 16 wherein the first SCI is, or is either, a primary SCI or a secondary SCI.
  18. The apparatus according to claim 15, wherein the path indication information includes information indicating the target transmission path or information indicating a target relay device;
    wherein the information for indicating the target transmission path includes at least one of:
    identification information of transmission paths including the first device, the target relay device, and the second device;
    the identification information of the transmission path including the target transfer device and the second device;
    including identification information of a transmission path of the second device; and
    identification information of a transmission path including the first device and the second device;
    the information for indicating the target relay apparatus includes at least one of:
    the equipment identification of the target transfer equipment;
    a device identification of the first device; and
    a device identification of the second device;
    wherein the target relay apparatus includes the third apparatus.
  19. The apparatus according to claim 17, wherein, in the relaying the data scheduled by the first control information according to the path indication information, the transceiver unit is specifically configured to: determining whether to transfer the sidelink data scheduled by the first control information according to the acquired path indication information; and the second control information is used for sending second control information when determining to relay the side-link data scheduled by the first control information, and the second control information comprises the source identification and the destination identification.
  20. The apparatus of claim 19 wherein the second control information is a second SCI.
  21. The apparatus of claim 20 wherein the second SCI is, or is either the first-level SCI or the second-level SCI.
  22. The apparatus according to claim 15 or 17, wherein the path indication information comprises link quality information of the target transmission path.
  23. The apparatus according to any of claims 19-21, wherein the first control information further comprises priority indication information; in the aspect of sending the second control information, the transceiver unit is specifically configured to: and when the priority indication information is detected to be greater than or equal to a first preset threshold, sending the second control information.
  24. The apparatus of claim 22, wherein the first control information further comprises priority indication information; in the aspect of sending the second control information, the transceiver unit is specifically configured to: and when the priority indication information is detected to be greater than or equal to a first preset threshold, sending the second control information according to the link quality information.
  25. The apparatus according to any of claims 19-21, wherein the path indication information comprises a transmission decision factor of the third device; in the aspect of sending the second control information, the transceiver unit is specifically configured to: generating a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second control information.
  26. The apparatus of claim 22, wherein the path indication information comprises a transmission decision factor of the third device; in the aspect of sending the second control information, the transceiver unit is specifically configured to: generating a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second control information according to the link quality information.
  27. The apparatus according to any of claims 19-21, wherein the first control information further comprises priority indication information; the path indication information includes a transmission decision factor of the third device; in the aspect of sending the second control information, the transceiver unit is specifically configured to: when the priority indication information is detected to be smaller than the first preset threshold, generating a sending decision random number; and judging that the sending decision random number and the sending decision factor meet a preset size relationship, and sending the second SCI through the communication unit according to the link quality information.
  28. The apparatus according to any one of claims 15-27, wherein the obtaining of the path indication information includes any one of: obtaining through pre-configuration; and obtaining from the network device through signaling, wherein the signaling is at least one of Radio Resource Control (RRC) signaling, Media Access Control (MAC) signaling or physical layer signaling.
  29. A communication apparatus, characterized in that the communication apparatus is a third device, and comprises a memory, a transceiver and at least one processor, the memory stores instructions, the memory, the transceiver and the at least one processor are interconnected by a line, and the processor is configured to invoke the instructions to perform the operation of transmitting uplink data in the method according to any one of claims 1 to 14.
  30. A communication device comprising a processor and interface circuitry;
    the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor executes the code instructions to perform the method of any one of claims 1-14.
  31. A readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1-14 to be implemented.
CN201980103190.0A 2019-12-31 2019-12-31 Multi-hop path data transmission method and related device Pending CN114846899A (en)

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PCT/CN2019/130936 WO2021134696A1 (en) 2019-12-31 2019-12-31 Data transmission method in multihop path and related apparatus

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CN115801484B (en) * 2021-09-10 2024-03-22 佛山市云米电器科技有限公司 Data transmission method and device based on movable equipment
EP4557800A1 (en) * 2022-07-14 2025-05-21 Beijing Xiaomi Mobile Software Co., Ltd. Data transmission configuration method, and apparatus
CN117769052A (en) * 2022-09-26 2024-03-26 夏普株式会社 Method executed by user equipment and user equipment
WO2024092793A1 (en) * 2022-11-04 2024-05-10 华为技术有限公司 Configuration indication method and communication apparatus

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CN110602801A (en) * 2019-08-09 2019-12-20 北京展讯高科通信技术有限公司 Link configuration method and device

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CN107005997A (en) * 2015-04-29 2017-08-01 华为技术有限公司 A kind of data transmission method, equipment and system
WO2017171895A1 (en) * 2016-04-01 2017-10-05 Intel Corporation Link adaptation for low complexity device to device (d2d) communication
WO2019195505A1 (en) * 2018-04-04 2019-10-10 Idac Holdings, Inc. Control information signaling and procedure for new radio (nr) vehicle-to-everything (v2x) communications
CN110602801A (en) * 2019-08-09 2019-12-20 北京展讯高科通信技术有限公司 Link configuration method and device

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