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CN-121984651-A - Communication method and communication device

CN121984651ACN 121984651 ACN121984651 ACN 121984651ACN-121984651-A

Abstract

The application provides a communication method and a communication device, and the method can be used in the communication field. The method includes receiving first indication information and first information. And determining the first information as auxiliary flow information according to the first indication information. The auxiliary flow information is information used in the auxiliary flow. The auxiliary flows may include auxiliary flows based on trigger mechanisms and auxiliary flows based on non-trigger mechanisms. The auxiliary flow information includes trigger information or auxiliary information, the trigger information is used for triggering an auxiliary flow, and the auxiliary information includes information of auxiliary resources. The first information is indicated by the first indication information, so that the first information can be identified, and the first information can be determined to be auxiliary flow information according to the first indication information, so that a flow of auxiliary resource selection is executed. By indicating the signaling in the auxiliary resource selection process, an auxiliary resource selection mechanism is further perfected, the complexity of signaling identification is reduced, and therefore an auxiliary flow is optimized.

Inventors

  • DONG LEI
  • SU HONGJIA
  • GUO WENTING
  • LU LEI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260505
Application Date
20200807

Claims (20)

  1. 1. A method of communication, comprising: Receiving first-stage side uplink control information, wherein the first-stage side uplink control information comprises a second-stage side uplink control information format field, and the second-stage side uplink control information format field is used for indicating that the format of the second-stage side uplink control information is a third format; receiving the second-stage side uplink control information; And determining that the format of the second-level side uplink control information is a third format according to the format field of the second-level side uplink control information, wherein the second-level side uplink control information comprises triggering information or auxiliary information, the triggering information is used for triggering an auxiliary flow, and the auxiliary information comprises information of auxiliary resources.
  2. 2. The method of claim 1, wherein the secondary side uplink control information format field occupies 2 bits, the 2 bits having a value of 10.
  3. 3. The method of claim 1 or 2, wherein the first-stage side uplink control information and the second-stage side uplink control information are from a second device.
  4. 4. The method of claim 3, wherein the triggering information is used to trigger an auxiliary flow, comprising: the trigger information is used for triggering a first device to assist the second device in selecting resources.
  5. 5. The method of claim 3, wherein the information of the auxiliary resource is determined by the second device.
  6. 6. A method as claimed in any one of claims 3 to 5, wherein the auxiliary resources are used to assist the first device in selecting resources.
  7. 7. The method according to any of claims 1 to 6, wherein the assistance information is trigger-based assistance information or non-trigger-based assistance information.
  8. 8. The method as recited in claim 7, further comprising: And receiving third indication information, wherein the third indication information is used for indicating that the auxiliary flow information is one of the trigger information, the auxiliary information based on the trigger mechanism or the auxiliary information based on the non-trigger mechanism.
  9. 9. The method of claim 8, wherein the third indication information is a field in the second-stage side uplink control information.
  10. 10. The method according to any one of claims 1 to 9, wherein the trigger information comprises parameters of the auxiliary flow, the parameters of the auxiliary flow comprising at least one of the following information: number of subchannels, selection window size, listening window size, period or priority information.
  11. 11. The method according to any one of claims 1 to 10, characterized in that the secondary side uplink control information format field is 2nd-stage SCI format.
  12. 12. The method according to any one of claims 1 to 10, wherein the third format is SCI format 2-C.
  13. 13. The method according to any of claims 1 to 11, wherein the method is performed by the first device or a chip in the first device.
  14. 14. A method of communication, comprising: Transmitting first-stage side uplink control information, wherein the first-stage side uplink control information comprises a second-stage side uplink control information format field, and the second-stage side uplink control information format field is used for indicating that the format of the second-stage side uplink control information is a third format; and sending second-level side uplink control information, wherein the format of the second-level side uplink control information is a third format, the second-level side uplink control information comprises triggering information or auxiliary information, the triggering information is used for triggering an auxiliary flow, and the auxiliary information comprises information of auxiliary resources.
  15. 15. The method of claim 14, wherein the secondary side uplink control information format field occupies 2 bits, the 2 bits having a value of 10.
  16. 16. The method of claim 14 or 15, wherein the first-stage side uplink control information and the second-stage side uplink control information are transmitted to a first device.
  17. 17. The method of claim 16, wherein the triggering information is used to trigger an auxiliary flow, comprising: The triggering information is used for triggering the first equipment to assist the second equipment in selecting resources.
  18. 18. The method of claim 16, wherein the information of the auxiliary resource is determined by a second device.
  19. 19. The method of any of claims 16 to 18, wherein the auxiliary resources are used to assist the first device in selecting resources.
  20. 20. The method according to any of claims 14 to 19, wherein the assistance information is trigger-based assistance information or non-trigger-based assistance information.

Description

Communication method and communication device The present application is a divisional application, the application number of which is 202080104265.X, the application date of which is 08/07 in 2020, the entire content of which is incorporated herein by reference. Technical Field The present application relates to the field of communications technologies, and in particular, to a communication method and a communication device. Background Vehicle-To-Everything communication (V2X) internet of vehicles is proposed, V2X communication refers To Vehicle-To-Vehicle communication (Vehicle To Vehicle, V2V), vehicle-To-pedestrian communication (Vehicle To Pedestrian, V2P), vehicle-To-infrastructure communication (Vehicle To Infrastructure, V2I), vehicle-To-network communication (Vehicle To Network, V2N). In the internet of vehicles system, two kinds of resource allocation modes are generally adopted when communication is carried out between terminal devices, one is that the network device schedules the side transmission resources, and the other is that the terminal device autonomously selects the resources. In the autonomous selection resource mode, the transmission resources of the transmitting terminal device are independent of the base station. In the autonomous selection resource mode, mutual coordination is required between the transmitting terminal and the auxiliary terminal. There is currently no effective solution. The related processes may need to be repeatedly monitored or started between the terminal devices, which causes resource waste and unnecessary interference. Disclosure of Invention The application provides a communication method and a communication device, which can optimize the auxiliary flow between terminal devices in an autonomous selection mode. In a first aspect, a communication method is provided that includes receiving first indication information and first information. And determining the first information as auxiliary flow information according to the first indication information. The auxiliary flow information is information for auxiliary flow, and the auxiliary flow is a flow in which one sidestream device assists another sidestream device in resource selection. The auxiliary flows may include auxiliary flows based on trigger mechanisms and auxiliary flows based on non-trigger mechanisms. The auxiliary flow information includes trigger information or auxiliary information, the trigger information is used for triggering an auxiliary flow, and the auxiliary information includes information of auxiliary resources. The embodiment of the application indicates the first information through the first indication information, so that the first information can be identified, and the first information can be determined to be auxiliary flow information according to the first indication information, thereby executing the flow of auxiliary resource selection. By indicating the signaling in the auxiliary resource selection process, an auxiliary resource selection mechanism is further perfected, the complexity of signaling identification is reduced, and therefore an auxiliary flow is optimized. In a possible implementation manner of the first aspect, the first sidestream device may receive the first indication information and the first information sent by the second sidestream device. At this time, the triggering information is used to trigger the first sidestream device to assist the second sidestream device in selecting resources. The information of the auxiliary resource is determined by the second sidestream device. The auxiliary resource is a resource for the second sidestream device to assist the first sidestream device in selecting. In the embodiment of the application, when the first information received by the first side-line device is the trigger information, the first side-line device can assist the second side-line device to select the resource according to the trigger information. When the first information received by the first side-line device is auxiliary information, the first side-line device can select resources according to the auxiliary information, and the second side-line device assists the first side-line device in selecting resources. According to the embodiment of the application, the first information is identified through the first indication information, so that the first lateral equipment can identify different auxiliary flows, and the corresponding auxiliary flows are completed. In a possible implementation manner of the first aspect, the assistance information is one of assistance information based on a trigger mechanism or assistance information based on a non-trigger mechanism. The trigger mechanism refers to that in the process of performing the auxiliary flow, the terminal equipment needs to send trigger information to the auxiliary terminal equipment, and the auxiliary terminal equipment sends auxiliary information according to the trigger information, and the auxilia