Communication method and apparatus
By selectively reporting channel state measurement results in carrier aggregation, the problem of high feedback overhead in channel state measurement in carrier aggregation is solved, thereby improving communication performance and saving energy in terminal equipment.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-12-29
- Publication Date
- 2026-07-30
AI Technical Summary
In the channel state measurement feedback process of carrier aggregation, the overhead of the terminal device measuring the channel state information reference signal is large, which may not be applicable to future communication scenarios.
The terminal device performs channel state measurements on M frequency domain resources and selectively reports the channel state measurement results on N frequency domain resources, where N is less than M. It uses configuration information to indicate which frequency domain resources meet preset conditions for measurement and feedback, thereby reducing redundancy.
It reduces the overhead of channel state measurement feedback, improves communication performance, and helps save energy in terminal devices.
Smart Images
Figure CN2025146639_30072026_PF_FP_ABST
Abstract
Claims
1. A communication method, characterized in that, The method includes: Receive configuration information, which indicates that channel state measurements are performed on M measurement resources out of M frequency domain resources, where M is an integer greater than 1; Channel state measurements are performed on the M measurement resources; The channel state measurement results obtained from N measurement resources in N frequency domain resources are transmitted, wherein the N measurement resources belong to the M measurement resources, and N is a positive integer less than M.
2. The method according to claim 1, characterized in that, The first frequency domain resource is a frequency domain resource in the frequency domain resource group whose channel performance meets preset conditions. The frequency domain resources included in the frequency domain resource group belong to the M frequency domain resources, and the first frequency domain resource is any one of the N frequency domain resources.
3. The method according to claim 2, characterized in that, The method further includes: Receive first information, which is used to indicate the frequency domain resource group.
4. The method according to any one of claims 1-3, characterized in that, The method further includes: Receive second information, which is used to indicate N.
5. The method according to any one of claims 1-4, characterized in that, The channel state measurement results obtained from the measurements on N measurement resources in the N frequency domain resources include: The identifiers of the N frequency domain resources and the channel state measurement results obtained on the N measurement resources corresponding to the identifiers are sent.
6. The method according to any one of claims 1-5, characterized in that, The method further includes: The channel state measurement results obtained from the measurement resources in the second frequency domain resource are transmitted. The second frequency domain resource is a frequency domain resource that is different from the N frequency domain resources among the M frequency domain resources.
7. A communication method, characterized in that, The method includes: Send configuration information, which is used to instruct channel state measurements to be performed on M measurement resources out of M frequency domain resources, where M is an integer greater than 1; The channel state measurement results are received from N measurement resources in N frequency domain resources, where the N measurement resources belong to the M measurement resources and N is a positive integer less than M.
8. The method according to claim 7, characterized in that, The first frequency domain resource is a frequency domain resource in the frequency domain resource group whose channel performance meets preset conditions. The frequency domain resources included in the frequency domain resource group belong to the M frequency domain resources, and the first frequency domain resource is any one of the N frequency domain resources.
9. The method according to claim 8, characterized in that, The method further includes: Send a first message, which is used to indicate the frequency domain resource group.
10. The method according to any one of claims 7-9, characterized in that, The method further includes: Send a second message, which is used to indicate N.
11. The method according to any one of claims 7-9, characterized in that, The channel state measurement results obtained from the N measurement resources in the N frequency domain resources include: The identifiers of the N frequency domain resources and the channel state measurement results obtained by measuring the N measurement resources corresponding to the identifiers are received.
12. The method according to any one of claims 2-3 and 8-9, characterized in that, One frequency domain resource group corresponds to one frequency band, or one frequency domain resource group corresponds to one frequency range.
13. The method according to any one of claims 2-3, 8-9, and 12, characterized in that, The preset conditions are: the channel performance of the first frequency domain resource is better than the channel performance of the frequency domain resource used for connection control; the channel performance of the first frequency domain resource is the best channel performance in the frequency domain resource group; the channel performance of the first frequency domain resource is better than the channel performance threshold; or the first frequency domain resource is the frequency domain resource with the top N channel performance in the frequency domain resource group, where N is greater than or equal to 2.
14. The method according to any one of claims 7-11, characterized in that, The method further includes: The channel state measurement result obtained from the measurement resource in the second frequency domain resource is received. The second frequency domain resource is a frequency domain resource that is different from the N frequency domain resources among the M frequency domain resources.
15. The method according to any one of claims 1-14, characterized in that, The frequency domain resources are: a portion of the frequency band, a portion of the bandwidth (BWP), or a carrier component (CC).
16. A communication device, characterized in that, The communication device includes a module for performing the method as described in any one of claims 1-15.
17. A communication device, characterized in that, include: Processor and memory; The memory is used to store computer instructions that, when executed by the processor, cause the communication device to perform the method as described in any one of claims 1-15.
18. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1-15.
19. A computer program product, characterized in that, The computer program product includes: a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1-15.