Terminal Time Synchronization State Handling for Faster 5G Access
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Solution Overview
Problem
Current mechanisms for processing changes in time synchronization states in 5G and beyond networks are inadequate, leading to communication performance issues for terminals in non-connected states.
Innovation Solution
A method and apparatus for terminals and network-side devices that enable determining changes in time synchronization states, performing local storage operations for time synchronization state indication information, and cell reselection to ensure timely access to updated synchronization information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a terminal in non-connected state waits for network access to obtain time synchronization state information, then the terminal can obtain accurate time synchronization information, but the terminal experiences communication performance degradation due to delayed access
Solution Approach 1:
The terminal performs local storage operations for time synchronization state indication information before actual network access is needed. The terminal determines whether a time synchronization state has changed and stores this information locally, so that when network access is required, the terminal already has the synchronization information ready, eliminating access delay while maintaining accuracy
Solution Approach 2:
The patent introduces time synchronization state indication information as an intermediary element. Instead of directly accessing the network for time synchronization information, the terminal uses this intermediate indication information stored locally to determine synchronization state changes, thereby avoiding direct network access delays while still obtaining accurate synchronization status
2Measurement precision
If the terminal performs cell reselection to select a cell that supports providing time synchronization state information, then the terminal can obtain accurate time synchronization information, but the device complexity increases due to additional selection operations
Solution Approach 1:
The terminal performs cell reselection operations in advance to select a cell that supports providing time synchronization state information before actual synchronization is needed. By pre-selecting an appropriate cell, the terminal avoids the need for complex real-time selection operations and ensures accurate time synchronization information is available
Solution Approach 2:
The terminal autonomously performs cell reselection based on its own determination of time synchronization state changes. The terminal independently evaluates whether a cell supports providing time synchronization state information and makes the selection without requiring complex external coordination, thereby reducing overall system complexity while maintaining synchronization accuracy
Data Source
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AI summary
This application discloses a time synchronization state processing method and apparatus, a terminal, and a network-side device, and pertains to the field of communication technologies. The time synchronization state processing method in embodiments of this application includes: performing, by a terminal, a first operation in a case that a function of accessing a network based on a change in a time synchronization state is enabled, where the first operation includes at least one of the following: an operation of determining whether a time synchronization state has changed; a local storage operation for time synchronization state indication information; or a cell reselection operation, where the cell reselection operation is used by the terminal to select a cell that supports providing time synchronization state information.