CN-121985414-A - Wireless communication method and related device

Abstract

The embodiment of the application provides a wireless communication method and a related device, wherein the method can actively identify the periodic motion characteristic of terminal equipment (UE), predict the optimal candidate beam set of the UE in the future period by combining the periodic motion characteristic of the UE and historical beam information, and can directly select the next beam in the predicted optimal candidate beam set to try to switch when the channel quality is poor, so that full beam scanning is not required, and the cost of beam scanning is reduced. In addition, after the periodic information of the UE is added, the UE and the network equipment can be ensured to perform correct angle and beam estimation under the condition that the UE has periodic motion, so that the accuracy of beam switching of the UE is greatly improved, namely the UE can be correctly switched at each switching moment, thereby ensuring the channel capacity and throughput, reducing the link interruption probability and improving the communication stability.

Inventors

• LI MINGKUN
• PANG GAOKUN
• WANG PENGYU
• WANG ZHAOCHENG

Assignees

• 荣耀终端股份有限公司
• 清华大学

Dates

Publication Date

20260505

Application Date

20260327

Claims (20)

1. 1. A method of wireless communication, performed by a terminal device, the method comprising: The terminal equipment sends first indication information to first network equipment, wherein the first indication information comprises second beam set information or comprises first beam set information and the second beam set information, and the first network equipment enables the terminal equipment to be switched from a first network corresponding to the first network equipment to a second network corresponding to the second network equipment according to the first indication information; The first beam set information corresponds to the first network equipment, the first beam set information is used for enabling information to be transmitted between the first network equipment and the terminal equipment, the second beam set information corresponds to the second network equipment, the second beam set information is used for enabling information to be transmitted between the second network equipment and the terminal equipment, and the first beam set information and the second beam set information are beam information predicted by the terminal equipment.
2. 2. The method of claim 1, wherein the terminal device sends the first indication information to the first network device, comprising: the terminal equipment sends the first indication information when sending a measurement report to the first network equipment; Or alternatively And when the terminal equipment sends a beam measurement report to the first network equipment, the first indication information is sent.
3. 3. The method of claim 1, wherein the first network device is further configured to send the second beam set information to the second network device.
4. 4. A method according to any of claims 1-3, characterized in that the procedure of the terminal device switching from the first network to the second network is triggered by the first network device based on first event information and/or first demand information in the first beam set information or by the first network device based on second event information and/or second demand information in the second beam set information.
5. 5. The method of claim 4, wherein the first event information comprises at least one of a signal quality of the second network being better than the first network, a signal quality of the first network being degraded and a surrounding cell signal quality being better than the first network; the first demand information includes at least one of: indicating a handover requirement; Indicating a need to switch to the second network; Indication as at least one of specified route information, historical route information, fixed switching information, movement route information, commute route information, fixed path information, scene type information, specified scene information; Indicating that the first beam set information is prediction information or the first beam set information is artificial intelligent AI prediction report information or information acquired based on AI; The second event information includes at least one of a signal quality of the second network being better than the first network, a signal quality of the first network being degraded and a signal quality of surrounding cells being better than the first network; the second demand information includes at least one of: indicating a handover requirement; Indicating a need to switch to the second network; Indication as at least one of specified route information, historical route information, fixed switching information, movement route information, commute route information, fixed path information, scene type information, specified scene information; And indicating the second beam set information to be AI prediction report information or information acquired based on AI.
6. 6. A method according to any of claims 1-3, wherein the terminal device is handed over from a first network corresponding to the first network device to a second network corresponding to the second network device, comprising: The terminal device uses the second beam set information to perform at least one of random access, data transmission, and beam failure recovery with the second network device.
7. 7. The method of claim 6, wherein the method further comprises: in the process that the terminal equipment uses the second wave beam set information to access with the second network equipment at any time, the terminal equipment receives a random access response message or a fourth message from the second network equipment based on third downlink wave beam information or fourth downlink wave beam information in the second wave beam set information; And in the process that the terminal equipment uses the second wave beam set information to carry out data transmission with the second network equipment, the terminal equipment receives data or channel state information reference signals (CSI-RS) from the second network equipment based on third downlink wave beam information or fourth downlink wave beam information in the second wave beam set information.
8. 8. A method of wireless communication, performed by a first network device, the method comprising: Receiving first indication information from terminal equipment, wherein the first indication information comprises second beam set information or first beam set information and second beam set information, the first beam set information corresponds to the first network equipment, the first beam set information is used for enabling information to be transmitted between the first network equipment and the terminal equipment, the second beam set information corresponds to the second network equipment, the second beam set information is used for enabling information to be transmitted between the second network equipment and the terminal equipment, and the first beam set information and the second beam set information are beam information predicted by the terminal equipment; and switching the terminal equipment from a first network corresponding to the first network equipment to a second network corresponding to the second network equipment based on the first indication information.
9. 9. The method of claim 8, wherein the receiving the first indication information from the terminal device comprises: receiving the first indication information when receiving a measurement report from the terminal equipment; Or alternatively And receiving the first indication information when receiving the beam measurement report from the terminal equipment.
10. 10. The method of claim 8 or 9, further comprising transmitting the second beam set information to a second network device.
11. 11. The method of claim 8, wherein the causing the terminal device to switch from a first network corresponding to the first network device to a second network corresponding to the second network device based on the first indication information comprises: based on first event information and/or first requirement information in the first beam set information, switching the terminal equipment from the first network to the second network; Or alternatively And switching the terminal equipment from the first network to the second network based on second event information and/or second requirement information in the second beam set information.
12. 12. The method of claim 11, wherein the step of determining the position of the probe is performed, The first event information includes at least one of a signal quality of the second network being better than the first network, a signal quality of the first network being degraded and a surrounding cell signal quality being better than the first network; the first demand information includes at least one of: indicating a handover requirement; Indicating a need to switch to the second network; Indication as at least one of specified route information, historical route information, fixed switching information, movement route information, commute route information, fixed path information, scene type information, specified scene information; indicating that the first beam set information is prediction information or information acquired based on AI; The second event information includes at least one of a signal quality of the second network being better than the first network, a signal quality of the first network being degraded and a signal quality of surrounding cells being better than the first network; the second demand information includes at least one of: indicating a handover requirement; Indicating a need to switch to the second network; Indication as at least one of specified route information, historical route information, fixed switching information, movement route information, commute route information, fixed path information, scene type information, specified scene information; And indicating the second beam set information to be prediction AI reporting information or information acquired based on AI.
13. 13. A method of wireless communication, performed by a terminal device, the method comprising: The method comprises the steps of obtaining motion state information of terminal equipment and a predicted candidate beam sequence in a first time length based on historical data of the terminal equipment, wherein the motion state information comprises motion characteristics, if the motion characteristics are periodic motion, the motion state information also comprises periodic information, the starting time of the first time length is later than the current time, the predicted candidate beam sequence comprises a predicted candidate beam sequence corresponding to each time of the terminal equipment in the first time length, the historical data comprises historical beam information, and the historical beam information comprises beam sequences and channel measurement results used by the terminal equipment in a preset number of historical windows; And sending the motion state information and the predicted candidate beam sequence to a network device, wherein the motion state information and the predicted candidate beam sequence are used for enabling the network device to adjust a beam management strategy.
14. 14. The method of claim 13, wherein the method further comprises: after detecting that the channel quality is continuously lower than a threshold value, attempting switching from a first beam in the latest predicted candidate beam sequence, wherein the first beam is the first beam which does not attempt switching in the latest predicted candidate beam sequence.
15. 15. The method of claim 13, wherein the obtaining the motion state information of the terminal device and the predicted candidate beam sequence for the first duration based on the historical data of the terminal device comprises: if the state of the terminal equipment meets the triggering condition, acquiring motion state information of the terminal equipment and a predicted candidate beam sequence in a first duration based on historical data of the terminal equipment; wherein the triggering condition includes at least one of: The switching times of the received wave beams in the preset time length of the terminal equipment are more than or equal to the preset times; the quality of the received signal of the terminal equipment regularly drops; the gesture change amplitude of the terminal equipment is larger than or equal to a preset threshold value; And updating the counting steps of the terminal equipment.
16. 16. The method of claim 13, wherein the obtaining the motion state information of the terminal device and the predicted candidate beam sequence for the first duration based on the historical data of the terminal device comprises: and inputting the historical data of the terminal equipment into an AI model for processing, identifying the motion characteristics of the terminal equipment, and obtaining motion state information and the prediction candidate beam sequence.
17. 17. The method of claim 13, wherein the obtaining the motion state information of the terminal device and the predicted candidate beam sequence for the first duration based on the historical data of the terminal device comprises: processing the historical data by using a periodicity detection algorithm, detecting whether the action of the terminal equipment has periodicity, and if the action of the terminal equipment is detected to have periodicity, extracting periodicity information from the historical data, wherein the periodicity information comprises a periodicity length; And inputting whether the terminal equipment has periodicity, the periodic information and the historical beam information in the historical data into an AI model for processing to obtain a predicted candidate beam sequence.
18. 18. The method according to any one of claims 13-17, wherein the history data further comprises at least one of gesture data and step counting information of the terminal device.
19. 19. The method according to any of claims 13-17, wherein the period information comprises a period length and a periodicity cause; or the period information includes a period length, a period cause, a period start frame number, and a good period start time.
20. 20. The method of claim 19, wherein the method further comprises: And dynamically adjusting the length of a history window of the history data input to the AI model according to the period length, wherein the adjusted history window is an integer multiple of the period length.

Description

Wireless communication method and related device Technical Field The present application relates to the field of wireless communications technologies, and in particular, to a wireless communication method and a related device. Background Multiple-input multiple-output (MIMO) technology converts conventional wide beam transmission into narrow beam transmission by using spatial multiplexing and beam forming technology by deploying a large-scale antenna array at a transceiver, thereby improving system capacity and spectrum utilization, overcoming high frequency loss, and realizing high-rate and reliable communication. However, as the number of antennas increases, the beam width becomes significantly narrower, causing the system to become extremely sensitive to signal blocking, scattering, and user behavior, which puts more stringent demands on beam management and link maintenance. Conventional beam management relies mainly on measurement and feedback mechanisms of synchronization signal blocks (synchronization signal block, SSB) and channel state information reference signals (CHANNEL STATE information-REFERENCE SIGNAL, CSI-RS). The terminal detects that the Reference Signal Received Power (RSRP) is continuously lower than the threshold or the beam failure such as link interruption, and the like, and triggers the beam recovery flow. However, the current beam management mechanism has hysteresis in beam recovery, the beam selection is completely dependent on reference signal measurement, so that the beam management overhead is high and the communication stability is low. Disclosure of Invention In view of the above, the present application provides a wireless communication method and related device to solve at least some of the above problems, and the disclosed technical solution is as follows: In a first aspect, the application provides a wireless communication method, which is executed by a terminal device, and the method comprises the steps that the terminal device sends first indication information to a first network device, wherein the first indication information comprises second beam set information, or first beam set information and second beam set information, the first beam set information corresponds to the first network device, the first beam set information is used for enabling information to be transmitted between the first network device and the terminal device, the second beam set information corresponds to the second network device, the second beam set information is used for enabling information to be transmitted between the second network device and the terminal device, and the first network device enables the terminal device to be switched from a first network corresponding to the first network device to a second network corresponding to the second network device according to the first indication information. The first beam set information and the second beam set information are beam information predicted by the terminal device. According to the scheme, the first network device can decide whether to trigger the terminal to perform beam switching according to the first beam set information and/or the second beam set information predicted by the terminal device, so that the terminal is not required to perform beam measurement and report a beam measurement report, time consumption in a beam measurement process is saved, the timeliness of the beam switching is improved, and the communication performance of the terminal is improved. Moreover, the terminal device can predict the change trend of the optimal candidate beam direction corresponding to the future period, so that the accuracy of the beam switching or network switching of the UE is improved. In one possible implementation, the first beam set information and the second beam set information are predicted by the terminal device based on historical data of the terminal device. The history data comprises, for example, at least data characterizing the movement characteristics of the terminal device. For example, historical beam information, historical motion information, and the like may be included. In this way, the terminal device identifies whether the terminal device is currently in a specific route or a specific scene according to the historical data, if so, the terminal device can predict the second beam set information matched with the specific route or the specific scene, so that the UE can switch to a second network covered by the second network device, and the network switching accuracy is improved. In one possible implementation, the terminal device sends the first indication information to the first network device, including sending the first indication information when the terminal device sends a measurement report to the first network device, or sending the first indication information when the terminal device sends a beam measurement report to the first network device. In this way, the terminal can send at least one item of infor