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WO-2026092211-A1 - COMMUNICATION METHOD AND APPARATUS

WO2026092211A1WO 2026092211 A1WO2026092211 A1WO 2026092211A1WO-2026092211-A1

Abstract

Provided in the present application are a communication method and apparatus. The method comprises: a first node determining a first synchronization block, and sending the first synchronization block within a first COT, wherein the first synchronization block comprises a first synchronization signal and first synchronization information, an identifier of a sequence corresponding to the first synchronization signal being a first identifier, the first synchronization information comprising an identifier of the first node, and there being a correspondence between the first identifier and the identifier of the first node. In the method, the correspondence between an identifier (i.e., a first identifier) of a sequence corresponding to a first synchronization signal included in a first synchronization block determined by a first node and an identifier of the first node is configured, such that by means of performing recognition or detection on a synchronization signal included in a received synchronization block, a receiving node (e.g., a second node) can accurately determine, in a timely manner, whether the received synchronization block is related to the receiving node, without the need to perform synchronization information detection on the received synchronization block, and thus unnecessary information detection can be effectively reduced to reduce power consumption of the receiving node.

Inventors

  • GAO, LEI
  • WAN, LEI
  • ZHU, Jiezuo
  • MA, SHA

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260507
Application Date
20251020
Priority Date
20241028

Claims (20)

  1. A communication method, characterized in that it is applied to a first node, the method comprising: A first synchronization block is determined, the first synchronization block includes a first synchronization signal and first synchronization information, the identifier of the sequence corresponding to the first synchronization signal is a first identifier, and the first synchronization information includes the identifier of the first node; wherein, the first identifier and the identifier of the first node have a corresponding relationship; The first synchronization block is transmitted within the first channel occupancy time (COT).
  2. The method as described in claim 1, characterized in that the first identifier corresponds to the identifier of the first node, including: The first identifier corresponds to all the information in the identifier of the first node; The first identifier corresponds to a portion of the information in the identifier of the first node; or, The first identifier has the same numerical value as some information in the identifier of the first node.
  3. The method as described in claim 1 or 2, characterized in that the method further comprises: A second synchronization signal and a first control information are determined; wherein, the identifier of the sequence corresponding to the second synchronization signal is a second identifier; the second identifier has a corresponding relationship with the first type to which the first control information belongs; Within the second COT, the second synchronization signal and the first control information are sent.
  4. The method as described in claim 3, wherein the second synchronization signal is included in the second synchronization block, and the second synchronization block further includes second synchronization information; The first control information is included in the second synchronization information; or, The first control information is independent of the second synchronization block.
  5. The method as described in claim 4, wherein the second synchronization information includes the identifier of the first node.
  6. The method as described in any one of claims 3-5 is characterized in that the first identifier and the second identifier are different identifiers in the same preset identifier set.
  7. The method as described in claim 6, wherein the preset identifier set further includes reserved identifiers.
  8. The method according to any one of claims 3-7, wherein the control information of the first type includes one of the following: control information for multi-domain synchronization, control information for conflict suppression between nodes, and beacon information.
  9. A communication method, characterized in that it is applied to a second node, the method comprising: A first synchronization block is received, the first synchronization block includes a first synchronization signal and first synchronization information, the identifier of the sequence corresponding to the first synchronization signal is a first identifier, and the first synchronization information includes the identifier of a first node; wherein, the first identifier and the identifier of the first node have a corresponding relationship; The first synchronization information is obtained from the first synchronization block if one of the following conditions is met: The sequence corresponding to the first synchronization signal matches the first sequence; The first identifier is the same as the identifier of the first sequence; or, The identifier of the first node connected to the second node corresponds to the first identifier in a preset manner.
  10. The method as described in claim 9, wherein the first identifier corresponds to the identifier of the first node, including: The first identifier corresponds to all the information in the identifier of the first node; The first identifier corresponds to a portion of the information in the identifier of the first node; or, The first identifier has the same numerical value as some information in the identifier of the first node.
  11. The method as described in claim 9 or 10, characterized in that the method further comprises: Receive a second synchronization signal, wherein the identifier of the sequence corresponding to the second synchronization signal is a second identifier; Receive the first control information if one of the following conditions is met: The sequence corresponding to the second synchronization signal matches the second sequence corresponding to the first type; The second identifier is the same as the third identifier corresponding to the first type; or, The second identifier corresponds to the first type in a preset manner; The first type is a control information type.
  12. The method as described in claim 11, wherein the second synchronization signal is included in the second synchronization block, and the second synchronization block further includes second synchronization information; The first control information is included in the second synchronization information; or, The first control information is independent of the second synchronization block.
  13. The method as described in claim 12, wherein the second synchronization information includes the identifier of the first node.
  14. The method as described in any one of claims 11-13 is characterized in that the first identifier and the second identifier are different identifiers in the same preset identifier set.
  15. The method as described in claim 14 is characterized in that the preset identifier set further includes reserved identifiers.
  16. The method as described in any one of claims 11-15, wherein the first type of control information includes one of the following: control information for multi-domain synchronization, control information for conflict suppression between nodes, and beacon information.
  17. A communication method, characterized in that it is applied to a first node, the method comprising: A second synchronization signal and a first control information are determined; wherein, the identifier of the sequence corresponding to the second synchronization signal is a second identifier; the second identifier has a corresponding relationship with the first type to which the first control information belongs; Within the second COT, the second synchronization signal and the first control information are sent.
  18. The method as described in claim 17, wherein the second synchronization signal is included in the second synchronization block, and the second synchronization block further includes second synchronization information; The first control information is included in the second synchronization information; or, The first control information is independent of the second synchronization block.
  19. The method as described in claim 18, wherein the second synchronization information includes the identifier of the first node.
  20. The method according to any one of claims 17-19, characterized in that the method further comprises: A first synchronization block is determined, the first synchronization block includes a first synchronization signal and first synchronization information, the first synchronization signal is identified by a first identifier, and the first synchronization information includes the identifier of the first node; wherein, the first identifier and the identifier of the first node have a corresponding relationship; Within the first COT, the first synchronization block is sent.

Description

A communication method and apparatus Cross-reference of related applications This application claims priority to Chinese Patent Application No. 202411518105.6, filed on October 28, 2024, entitled "A Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology Short-range wireless communication refers to the transmission of information between the sender and receiver via radio waves over distances ranging from tens of meters indoors to hundreds of meters outdoors. Short-range wireless communication allows devices to move slowly within confined spaces while maintaining a constant network connection. Examples of short-range wireless communication technologies include Wireless Local Area Network (WLAN) and SparkLink (or NearLink) communication technologies. Taking a G node and a T node using StarScan communication technology as an example, when the G node communicates with the T node, the G node sends a synchronization block to the T node. The T node then uses this synchronization block to complete time and frequency synchronization with the G node (this can be called time-frequency synchronization). However, during the synchronization process, the T node may detect a large number of synchronization blocks. Some of these blocks may not be relevant to the T node, but the T node still needs to examine the information contained in these blocks to determine whether they are relevant to the T node. Furthermore, the complexity of the T node's information detection is relatively high, leading to significant power consumption. Therefore, how to effectively reduce unnecessary information detection to lower the power consumption of the receiving node (such as the T node) requires further research. Summary of the Invention This application provides a communication method and apparatus to effectively reduce unnecessary information detection and thus lower the power consumption of the receiving node. Firstly, this application provides a communication method, which can be executed by a first node or a module within the first node (such as a processor, processing unit, chip system, circuit, or chip). Optionally, the method can also be implemented by a logical node, logical module, or software capable of implementing all or part of the functions of the first node. For example, the following describes the execution of the communication method by a first node. The method may include the following steps: the first node determines a first synchronization block, and then the first node can send the first synchronization block within a first COT (Concurrent Time Opportunity). The first synchronization block may include a first synchronization signal and first synchronization information. The identifier of the sequence corresponding to the first synchronization signal is a first identifier, and the first synchronization information may include the identifier of the first node, with the first identifier corresponding to the identifier of the first node. In this method, by configuring (or setting or enabling) the identifier (i.e., the first identifier) of the sequence corresponding to the first synchronization signal contained in the first synchronization block determined by the first node to correspond with the identifier of the first node, the receiving node (such as the second node) can identify or detect the synchronization signal contained in the received synchronization block (for example, determining whether to process the received synchronization block to obtain synchronization information based on the sequence corresponding to the synchronization signal, or determining whether to process the received synchronization block to obtain synchronization information based on the identifier of the sequence corresponding to the synchronization signal). This allows for timely and accurate determination of whether the received synchronization block is related to the receiving node (which can be understood as determining whether the sending node of the received synchronization block is the first node that has established a connection with the receiving node), without the need to perform synchronization information detection on the received synchronization block (which can be understood as not needing to perform a series of processing on the synchronization information contained in the synchronization block (such as equalization, demodulation, decoding, information extraction, etc.)). This helps to reduce the number of blind detections of synchronization information, thereby effectively reducing unnecessary information detection and reducing the power consumption of the receiving node (such as the second node). In one possible implementation, the first identifier corresponds to the identifier of the first node, including: The first iden