EP-4742821-A1 - WIRELESS COMMUNICATION METHOD AND COMMUNICATION DEVICE

EP4742821A1EP 4742821 A1EP4742821 A1EP 4742821A1EP-4742821-A1

Abstract

Provided are a wireless communication method and a communication device. A wireless communication method includes determining, by a first communication device, second information based on first information; and/ or, determining, by a first communication device, first information based on second information, where the first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, and the first signal is configured for positioning of the terminal device. The DRX process and paging process also involve wake-up procedures. The present disclosure proposes combining the first information and the second information to select one or more of the following: a time window for measuring and/or sending the first signal, A DRX parameter, and a paging parameter, so as to minimize the total number of wake-ups, thereby reducing energy consumption of the terminal device.

Inventors

ZHAO, ZHENG
LYU, Ling
YANG, Zhongzhi

Assignees

Quectel Wireless Solutions Co., Ltd

Dates

Publication Date: 20260513
Application Date: 20230706

Claims (20)

A wireless communication method, comprising at least one of: determining, by a first communication device, second information based on first information; and/or determining, by a first communication device, the first information based on the second information; wherein the first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, and the first signal is configured for positioning of the terminal device.
The wireless communication method according to claim 1, further comprising: receiving, by the first communication device, indication information sent by a second communication device, the indication information including at least one of first indication information and second indication information; wherein the first indication information is configured to indicate the first information in the case where the second information is determined based on the first information, and the first indication information is configured to indicate the second information in the case where the first information is determined based on the second information; and wherein the second indication information is configured to indicate a radio resource control (RRC) state of the terminal device.
The wireless communication method according to claim 2, further comprising: sending, by the first communication device, at least one of a first request and a second request; wherein the first request is configured to request acquisition of the first indication information, and the second request is configured to request acquisition of the second indication information.
The wireless communication method according to claim 2 or 3, wherein the indication information is carried in one or more of following signalings: a location positioning protocol (LPP) signaling, and a new radio positioning protocol a (NRPPa) signaling.
The wireless communication method according to any one of claims 2 to 4, wherein receiving, by the first communication device, the indication information sent by the second communication device includes: receiving, by the first communication device, the indication information sent by the second communication device in response to an access network device or the first communication device receiving a positioning request from the terminal device; or receiving, by the first communication device, the indication information sent by the second communication device in response to completion of selection of a positioning server.
The wireless communication method according to any one of claims 2 to 5, wherein before determining, by the first communication device, the first information based on the second information, the wireless communication method further includes: determining, by the first communication device, the second information based on the RRC state and an identifier of the terminal device.
The wireless communication method according to claim 6, wherein determining, by the first communication device, the second information based on the RRC state and the identifier of the terminal device includes: determining, by the first communication device, a time region corresponding to paging detection based on the identifier of the terminal device; and determining, by the first communication device, the second information based on the time region.
The wireless communication method according to any one of claims 1 to 7, wherein in the case where the first information is determined based on the second information, the wireless communication method further comprises: sending, by the first communication device, the first information to the second communication device.
The wireless communication method according to claim 8, wherein the first information is carried in a configuration reference message of the first signal or auxiliary information of the first signal.
The wireless communication method according to any one of claims 2 to 9, wherein the first communication device includes a positioning server, and the second communication device includes one or more of the terminal device, an access network device corresponding to a neighboring cell of the terminal device, and an access network device corresponding to a serving cell of the terminal device.
The wireless communication method according to any one of claims 1 to 10, wherein the first information includes one or more of following information: a candidate time window for sending the first signal; a candidate time window for measuring the first signal; a start time of the time window; and a duration of the time window.
The wireless communication method according to claim 11, wherein in a case where the first information is determined based on the second information and related to the start time, the start time is further determined based on a first offset, wherein the first offset is related to one or more of a DRX active period, a preconfigured processing window (PPW) parameter, and a paging cycle.
The wireless communication method according to claim 12, wherein in response to the time window being within the PPW, the first offset is a first value, and in response to the time window being outside the PPW, the first offset is a second value.
The wireless communication method according to claim 12, wherein a system frame number corresponding to the start time satisfies: SFN + PF _ offset + Pos _ offset mod T = T div N × UE _ ID mod N , wherein SFN represents the system frame number, Pos_offset represents the first offset, T represents a cycle length of a DRX cycle of the terminal device, UE_ID represents an identifier of the terminal device, N represents a number of paging frames (PF) in the DRX cycle, Ns represents a number of paging occasions (PO) within one PF, and PF_offset represents a frame offset of the PF.
The wireless communication method according to claim 12, wherein a DRX activation time is a first time instance, and the start time precedes the first time instance by the first offset.
The wireless communication method according to any one of claims 12 to 15, wherein the first offset is preset or determined by the first communication device.
The wireless communication method according to any one of claims 12 to 16, wherein the first offset is greater than or equal to the duration of the time window.
The wireless communication method according to claim 17, wherein the first offset is less than or equal to a first duration threshold, wherein the first duration threshold is greater than the duration of the time window.
The wireless communication method according to any one of claims 1 to 18, wherein the first signal includes at least one of a positioning reference signal (PRS) and a sounding reference signal (SRS).
A wireless communication method, comprising: sending, by a second communication device, indication information to a first communication device, the indication information including at least one of first indication information or second indication information; wherein when the first indication information indicates first information, the first information is configured to determine second information, or when the first indication information indicates second information, the second information is configured to determine the first information, wherein the first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, the first signal is configured for positioning of the terminal device, the second indication information indicates a radio resource control (RRC) state of the terminal device, and when the first information is determined based on the second information, the RRC state and an identifier of the terminal device are configured to determine the second information.

Description

TECHNICAL FIELD The present disclosure relates to the technical field of communications, and more particularly, to a wireless communication method and a communication device. BACKGROUND In a positioning procedure, a terminal device is required to send and/or measure a first signal used for positioning. Consequently, the terminal device must wake up from a sleep state. This wake-up process necessitates the terminal device to perform operations such as measurement and synchronization, thereby resulting in relatively large power consumption by the terminal device. SUMMARY Embodiments of the present disclosure provide a wireless communication method and a communication device. Various aspects of the present disclosure are described below. In a first aspect, a wireless communication method is provided. The wireless communication method includes at least one of: determining, by a first communication device, second information based on first information; or determining, by a first communication device, the first information based on the second information. The first information is related to at least one of a time window for sending a first signal or a time window for measuring the first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter or a paging parameter of a terminal device, and the first signal is configured for positioning the terminal device. In a second aspect, a wireless communication method is provided. The wireless communication method includes: sending, by a second communication device, indication information to a first communication device, the indication information including at least one of first indication information or second indication information. In the case where the first indication information indicates first information, or when the first information indicates second information, and when the first indicates the second information, the second information is configured to determine the first information. The first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, the first signal is configured for positioning the terminal device, the second indication information is configured to indicate a radio resource control (RRC) state of the terminal device, and in the case where the first information is determined based on the second information, the RRC state and an identifier of the terminal device are configured to determine the second information. In a third aspect, a communication device is provided. The communication device is a first communication device and includes at least one of: a first determination unit, configured to determine second information based on first information; and a second determination unit, configured to determine first information based on second information. The first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, and the first signal is configured for positioning the terminal device. In a fourth aspect, a communication device is provided. The communication device is a second communication device and includes: a sending unit, configured to send indication information to a first communication device, the indication information including at least one of first indication information and second indication information. In the case where the first indication information is configured to indicate first information, the first information is configured to determine second information, and in the case where the first indication information is configured to determine the second information, the second information is configured to determine the first information. The first information is related to at least one of a time window for sending a first signal and a time window for measuring a first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter and a paging parameter of a terminal device, the first signal is configured for positioning the terminal device, the second indication information is configured to indicate a radio resource control (RRC) state of the terminal device, and in the case where the first information is determined based on the second information, the RRC state and an identifier of the terminal device are configured to determine the second information. In a fifth aspect, a communication device is provided. The communication device includes: a memory and a processor, where the memory is configured to store a program, and the processor is configured to call the program stored in the memory to cause the communication device to