CN-116711271-B - Wireless communication method, terminal equipment and network equipment

Abstract

A wireless communication method, terminal equipment and network equipment comprise the steps that the terminal equipment calibrates correlation among a plurality of transmitting channels of the terminal equipment in a first calibration window, and the terminal equipment performs data transmission based on the calibrated correlation of the transmitting channels. By calibrating the correlation of the multiple transmitting paths of the terminal equipment based on the calibration window, the correlation among the multiple transmitting paths is improved, and further, the correlation MIMO transmission can be carried out based on the multiple transmitting paths with correlation, thereby being beneficial to improving the uplink transmission performance of the terminal equipment.

Inventors

• XING JINQIANG

Assignees

• OPPO广东移动通信有限公司

Dates

Publication Date

20260512

Application Date

20210508

Claims (20)

1. 1. A method of wireless communication, comprising: In a first calibration window, the terminal equipment calibrates the correlation among a plurality of transmitting channels of the terminal equipment so that the variation of the correlation among the plurality of transmitting channels is in a target range corresponding to the MIMO transmission capability of the terminal equipment; the terminal equipment performs data transmission based on the calibrated correlation of the plurality of transmitting paths; After the first calibration window, the terminal equipment receives related MIMO transmission configuration sent by network equipment, wherein if the initial MIMO transmission capability of the terminal equipment is uncorrelated MIMO transmission capability, the related MIMO transmission configuration is partial related MIMO transmission configuration or full related MIMO transmission configuration, or if the initial MIMO transmission capability of the terminal equipment is partial related MIMO transmission capability, the related MIMO transmission configuration is full related MIMO transmission configuration; And the terminal equipment sends first indication information to the network equipment under the condition that the correlation among the plurality of transmitting paths is lower than a preset condition, wherein the first indication information is used for indicating the terminal equipment to fall back to data transmission based on partial correlated MIMO transmission configuration or uncorrelated MIMO transmission configuration.
2. 2. The method according to claim 1, wherein the method further comprises: The terminal device sends a calibration window request to a network device, wherein the calibration window request is used for requesting the network device to configure the first calibration window.
3. 3. The method of claim 2, wherein the terminal device sending a calibration window request to a network device comprises: and under the condition that a first timer does not work, the terminal equipment sends the calibration window request to the network equipment, wherein the terminal equipment is forbidden to initiate the calibration window request or stop the on-going correlation calibration during the operation of the first timer.
4. 4. A method according to claim 3, wherein the first timer is configured by the network device.
5. 5. The method according to any of claims 2-4, wherein the terminal device sending a calibration window request to a network device, comprising: And the terminal equipment sends the calibration window request to the network equipment under the condition that the correlation among the plurality of transmitting paths is lower than a preset condition.
6. 6. The method of claim 5, wherein the correlation between the plurality of transmit paths being below a predetermined condition comprises at least one of: The relative amplitude variation among the signals of the plurality of transmitting paths is greater than a first threshold; The amount of relative phase change between the signals of the plurality of transmit paths is greater than a second threshold.
7. 7. The method of any of claims 2-4, wherein the first calibration window is a non-periodic time window.
8. 8. The method of claim 7, wherein a length of the first calibration window is predefined or configured by a network device.
9. 9. The method of claim 8, wherein the calibration window request is further for requesting the network device to configure a length of the first calibration window, the length of the first calibration window being configured by the network device based on the calibration window request.
10. 10. The method of any of claims 2-4, wherein the first calibration window is a periodic time window.
11. 11. The method of claim 10, wherein the length of the first calibration window is predefined, or configured by a network device, and/or The period of the first calibration window is predefined or configured by the network device.
12. 12. The method of claim 11, wherein the calibration window request is further for requesting the network device to configure a length and/or period of the first calibration window, the length and/or period of the first calibration window being configured based on the calibration window request by the network device.
13. 13. The method according to claim 10, wherein the method further comprises: the terminal device receives a window activation message sent by the network device, wherein the window activation message is used for activating the first calibration window in the periodic time window, and the window activation message is sent by the network device based on the calibration window request.
14. 14. The method according to claim 10, wherein the method further comprises: And the terminal equipment receives a window deactivation message sent by the network equipment, wherein the window deactivation message is used for deactivating the periodic time window.
15. 15. The method of claim 14, wherein the window activation message is sent by the network device based on a calibration complete message for the terminal device indicating that the terminal device has completed correlation calibration between multiple transmit paths of the terminal device.
16. 16. The method of claim 1, wherein the terminal device performs data transmission based on the calibrated correlation of the plurality of transmit paths, comprising: And the terminal equipment performs data transmission based on the calibrated correlation of the plurality of transmitting channels according to the correlated MIMO transmission configuration.
17. 17. The method according to claim 1, wherein the method further comprises: The terminal device sends a related MIMO transmission request to the network device, where the related MIMO transmission request is used to request the related MIMO transmission configuration to the network device, and the related MIMO transmission configuration is configured by the network device based on the related MIMO transmission request of the terminal device.
18. 18. The method according to any one of claims 1-4, further comprising: the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for indicating the network equipment to fall back to data transmission based on partial related MIMO transmission configuration or uncorrelated MIMO transmission configuration.
19. 19. The method according to any of claims 1-4, wherein the terminal device calibrates correlation between a plurality of transmit paths of the terminal device in a first calibration window, comprising: In case the initial MIMO transmission capability of the terminal device is a partial correlation MIMO transmission capability or an uncorrelated MIMO transmission capability and data transmission with a correlation MIMO transmission configuration is desired, calibrating correlation between multiple transmission paths of the terminal device in the first calibration window, or In the case where the initial MIMO transmission capability of the terminal device is a fully correlated MIMO transmission capability and data transmission using a fully correlated MIMO transmission configuration is desired, correlation between a plurality of transmission paths of the terminal device is calibrated in the first calibration window.
20. 20. The method according to any one of claims 1-4, further comprising: the terminal device reports calibration capability of the terminal device to a network device, wherein the calibration capability is used for indicating whether the terminal device has the capability of performing correlation calibration on a plurality of transmitting paths of the terminal device based on a calibration window.

Description

Wireless communication method, terminal equipment and network equipment Technical Field The embodiment of the application relates to the field of communication, in particular to a wireless communication method, terminal equipment and network equipment. Background For terminals with multiple transmit antennas, the uplink may support multiple-input multiple-output (Multiple Input Multiple Output, MIMO) multi-stream transmission. Uplink MIMO includes both types of codebook-based MIMO transmission and non-codebook-based MIMO transmission. For codebook-based MIMO transmissions, the codebook is typically classified into a full-correlation (full-coherence) codebook, a partial-correlation (partial-coherence) codebook, and an uncorrelated (non-coherence) codebook. In practical applications, since the terminal device may operate in many situations, such as high temperature, low temperature, high voltage, low voltage, and the like, different environments. Therefore, it is difficult for the terminal device to maintain the full-correlation MIMO transmission capability, which affects the performance of the terminal device, and therefore, how to maintain the correlation MIMO transmission to improve the performance of the terminal device is an urgent problem to be solved. Disclosure of Invention The application provides a wireless communication method, a terminal device and a network device, wherein the terminal device calibrates the correlation of a plurality of transmitting channels based on a calibration window, so that the correlation MIMO transmission can be carried out through the plurality of transmitting channels with the correlation, and the uplink transmission performance of the terminal device is improved. In a first aspect, a method for wireless communication is provided, which includes that a terminal device calibrates correlation among a plurality of transmission paths of the terminal device in a first calibration window, and the terminal device performs data transmission based on the calibrated correlation of the plurality of transmission paths. In a second aspect, a method for wireless communication is provided, where a network device receives a calibration window request sent by a terminal device, where the calibration window request is used to request the network device to configure a first calibration window, where the first calibration window is used to calibrate correlation between multiple transmission paths of the terminal device by the terminal device, and the network device configures the first calibration window for the terminal device. In a third aspect, a terminal device is provided for performing the method in the first aspect or each implementation manner thereof. Specifically, the terminal device comprises functional modules for performing the method of the first aspect or its implementation manner. In a fourth aspect, a network device is provided for performing the method of the second aspect or implementations thereof. In particular, the network device comprises functional modules for performing the method of the second aspect or implementations thereof described above. In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof. In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above. A seventh aspect provides a chip for implementing the method of any one of the first to second aspects or each implementation thereof. In particular, the chip comprises a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method as in any one of the above-described first to second aspects or implementations thereof. In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the method of any one of the above-described first to second aspects or implementations thereof. A ninth aspect provides a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects or implementations thereof. In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to second aspects or implementations thereof. Therefore, the terminal equipment calibrates the correlation of a plurality of transmitting channels of the terminal equipment based on the calibration window, so that the correlation among