US-12628103-B2 - Time synchronization method and apparatus, and storage medium

US12628103B2US 12628103 B2US12628103 B2US 12628103B2US-12628103-B2

Abstract

The present application provides an information processing method and apparatus, and a storage medium, the method includes: acquiring time synchronization scenario information, where the time synchronization scenario information is used to indicate a scenario corresponding to a specific time synchronization requirement; determining a target time synchronization strategy according to the time synchronization scenario information. Therefore, flexibility, rationality of the time synchronization strategy are improved, which is beneficial to reduce a system overhead of time synchronization and improve a time synchronization effect.

Inventors

Li Chen

Assignees

DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20211102
Priority Date: 20210311

Claims (18)

1 . An information processing method, applied to a terminal, wherein the information processing method comprises: sending a first message to an access network device, wherein the first message carries time synchronization scenario information, and the time synchronization scenario information is used to indicate a scenario corresponding to a specific time synchronization requirement and to determine a target time synchronization strategy for time synchronization; wherein the time synchronization scenario information comprises at least one of a target scenario identifier of a time synchronization scenario, a target allowable synchronization-error range, and a target time synchronization requirement corresponding to a service; wherein the target time synchronization strategy comprises at least one of the following: a manner of a propagation delay compensation, an executive subject of a propagation delay compensation, and a compensation period for a propagation delay compensation; receiving a fourth message sent by the access network device, wherein the fourth message is used to indicate the terminal to perform the time synchronization based on the target time synchronization strategy, or the fourth message is used to indicate that the terminal does not need to perform the time synchronization.
2 . The information processing method according to claim 1 , wherein a sending moment of the first message comprises at least one of the following: when the terminal enters a connected state and accesses a cell; when the terminal has a service with an uplink time synchronization requirement; when the terminal switches to access a new cell; when the terminal periodically sends the first message at a sending moment.
3 . The information processing method according to claim 1 , wherein the fourth message is further used to indicate a compensation period for the terminal to perform the time synchronization based on the target time synchronization strategy.
4 . A non-transitory processor readable storage medium, wherein the processor readable storage medium stores computer programs, and the computer programs are used to enable a processor to execute the information processing method according to claim 1 .
5 . An information processing apparatus, applied to a terminal, the information processing apparatus comprising a memory, a transceiver and a processor: the memory is configured to store computer programs; the transceiver is configured to send and receive data under a control of the processor; the processor is configured to read the computer programs in the memory and execute the following operations: sending a first message to an access network device, wherein the first message carries time synchronization scenario information, and the time synchronization scenario information is used to indicate a scenario corresponding to a specific time synchronization requirement and to determine a target time synchronization strategy for time synchronization; wherein the time synchronization scenario information comprises at least one of a target scenario identifier of a time synchronization scenario, a target allowable synchronization-error range, and a target time synchronization requirement corresponding to a service; wherein the target time synchronization strategy comprises at least one of the following: a manner of a propagation delay compensation, an executive subject of a propagation delay compensation, and a compensation period for a propagation delay compensation; receiving a fourth message sent by the access network device, wherein the fourth message is used to indicate the terminal to perform the time synchronization based on the target time synchronization strategy, or the fourth message is used to indicate that the terminal does not need to perform the time synchronization.
6 . The information processing apparatus according to claim 5 , wherein a sending moment of the first message comprises at least one of the following: when the terminal enters a connected state and accesses a cell; when the terminal has a service with an uplink time synchronization requirement; when the terminal switches to access a new cell; when the terminal periodically sends the first message at a sending moment.
7 . An information processing method, applied to an access network device, the information processing method comprising: acquiring time synchronization scenario information, wherein the time synchronization scenario information is used to indicate a scenario corresponding to a specific time synchronization requirement, wherein the time synchronization scenario information comprises at least one of a target scenario identifier of a time synchronization scenario, a target allowable synchronization-error range, and a target time synchronization requirement corresponding to a service; determining a target time synchronization strategy according to the time synchronization scenario information; and sending a fourth message to a terminal, wherein the fourth message is used to indicate the terminal to perform time synchronization based on the target time synchronization strategy, or the fourth message is used to indicate that the terminal does not need to perform time synchronization, wherein the target time synchronization strategy comprises at least one of the following: a manner of a propagation delay compensation, an executive subject of a propagation delay compensation, and a compensation period for a propagation delay compensation.
8 . The information processing method according to claim 7 , wherein the determining the target time synchronization strategy according to the time synchronization scenario information comprises: determining a target allowable synchronization-error range according to the time synchronization scenario information; and determining the manner of the propagation delay compensation according to the target allowable synchronization-error range.
9 . The information processing method according to claim 8 , wherein the time synchronization scenario information comprises the target scenario identifier of the time synchronization scenario, the determining the target allowable synchronization-error range according to the time synchronization scenario information comprises: determining, according to a mapping relationship between a scenario identifier and an allowable synchronization-error range, the target allowable synchronization-error range is an allowable synchronization-error range corresponding to the target scenario identifier.
10 . The information processing method according to claim 8 , wherein the time synchronization scenario information comprises the target time synchronization requirement corresponding to the service, the determining the target allowable synchronization-error range according to the time synchronization scenario information comprises: acquiring, based on the target time synchronization requirement corresponding to the service, a target allowable synchronization-error range corresponding to the service.
11 . The information processing method according to claim 8 , wherein the determining the manner of the propagation delay compensation according to the target allowable synchronization-error range comprises: if a value in the target allowable synchronization-error range is less than or equal to a first threshold, determining the manner of the propagation delay compensation is a compensation based on a round trip time (RTT); otherwise, determining the manner of the propagation delay compensation is a compensation based on a time alignment (TA).
12 . The information processing method according to claim 7 , wherein the determining the target time synchronization strategy according to the time synchronization scenario information comprises: if a scenario corresponding to the time synchronization scenario information is time synchronization between terminals, determining an executive subject of the propagation delay compensation is the access network device.
13 . The information processing method according to claim 7 , wherein the determining the target time synchronization strategy according to the time synchronization scenario information comprises: if a value in a target allowable synchronization-error range corresponding to the time synchronization scenario information is less than or equal to a second threshold, determining the compensation period is a first duration; otherwise, determining the compensation period is a second duration; wherein the first duration is shorter than the second duration.
14 . The information processing method according to claim 7 , wherein the acquiring the time synchronization scenario information comprises: receiving a first message from the terminal, wherein the first message carries the time synchronization scenario information; wherein a sending moment of the first message comprises at least one of the following: when the terminal enters a connected state and accesses a cell; when the terminal has a service with an uplink time synchronization requirement; when the terminal switches to access a new cell; when the terminal periodically sends the first message at a sending moment.
15 . The information processing method according to claim 7 , wherein the information processing method further comprises: sending, to the terminal, a second message for requesting the time synchronization scenario information, before receiving the first message sent by the terminal; wherein the second message is a radio resource control (RRC) message or a medium access control (MAC) layer signaling.
16 . The information processing method according to claim 7 , wherein the acquiring the time synchronization scenario information comprises: receiving a third message from a core network device, wherein the third message carries the time synchronization scenario information; wherein the time synchronization scenario information is acquired by the core network device from an application function module (AF) or a centralized network configuration (CNC).
17 . The information processing method according to claim 7 , wherein the fourth message is further used to indicate a compensation period for the terminal to perform the time synchronization based on the target time synchronization strategy.
18 . An information processing apparatus, applied to an access network device, the information processing apparatus comprising a memory, a transceiver and a processor: the memory is configured to store computer programs; the transceiver is configured to send and receive data under a control of the processor; the processor is configured to read the computer programs in the memory and execute the method according to claim 7 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a national stage of International Application No. PCT/CN2021/128234, filed on Nov. 2, 2021, which claims priority to Chinese Patent Application No. 202110267777.4, filed on Mar. 11, 2021. Both of the aforementioned applications are hereby incorporated by reference in their entireties. FIELD The present application relates to the field of communications and, in particular, to an information processing method and apparatus, and a storage medium. BACKGROUND With the development of communication technology, a time synchronization requirement of a communication system is gradually increasing. For example, the 3rd generation partnership (3GPP) introduces a network deployment mechanism for the 5G communication system to access a time-sensitive networking (TSN) to realize a support for an industrial Internet of things (IIoT) scenarios. TSN has a high time synchronization requirement. At present, in order to overcome a time synchronization error caused by uncontrollable factors, a same propagation delay compensation (PDC) manner is usually used to perform time synchronization. However, this time synchronization manner may have a problem of a large system overhead. SUMMARY The present application provides an information processing method and apparatus, and a storage medium, which are used to solve a problem of a high overhead for time synchronization in a communication system. In one embodiment of the present application provides an information processing method, which is applied to an access network device, where the information processing method includes: acquiring time synchronization scenario information, where the time synchronization scenario information is used to indicate a scenario corresponding to a specific time synchronization requirement; anddetermining a target time synchronization strategy according to the time synchronization scenario information. In one embodiment, the target time synchronization strategy includes at least one of the following: a manner of a propagation delay compensation, an executive subject of a propagation delay compensation, and a compensation period for a propagation delay compensation. In one embodiment, the determining the target time synchronization strategy according to the time synchronization scenario information includes: determining a target allowable synchronization-error range according to the time synchronization scenario information; anddetermining the manner of the propagation delay compensation according to the target allowable synchronization-error range. In one embodiment, the time synchronization scenario information includes at least one of a target scenario identifier of a time synchronization scenario, a target allowable synchronization-error range, and a target time synchronization requirement corresponding to a service. In one embodiment, the time synchronization scenario information includes the target scenario identifier of the time synchronization scenario, the determining the target allowable synchronization-error range according to the time synchronization scenario information includes: determining, according to a mapping relationship between a scenario identifier and an allowable synchronization-error range, the target allowable synchronization-error range is an allowable synchronization-error range corresponding to the target scenario identifier. In one embodiment, the time synchronization scenario information includes a target time synchronization requirement corresponding to a service, the determining the target allowable synchronization-error range according to the time synchronization scenario information includes: acquiring, based on the target time synchronization requirement corresponding to the service, a target allowable synchronization-error range corresponding to the service. In one embodiment, the determining the manner of the propagation delay compensation according to the target allowable synchronization-error range includes: if a value in the target allowable synchronization-error range is less than or equal to a first threshold, determining the manner of the propagation delay compensation is a compensation based on a round trip time RTT; otherwise, determining the manner of the propagation delay compensation is a compensation based on a time alignment TA. In one embodiment, the determining the target time synchronization strategy according to the time synchronization scenario information includes: if a scenario corresponding to the time synchronization scenario information is time synchronization between terminals, determining an executive subject of the propagation delay compensation is the access network device. In one embodiment, the determining the target time synchronization strategy according to the time synchronization scenario information includes: if a value in a target allowable synchronization-error range corresponding to the time synchronization scenario i