Terminal Time Quality Requests for Delay-Sensitive Transmission
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Solution Overview
Problem
The degradation of transmission performance for delay-sensitive services due to errors in time quality information maintained by network element devices, which are not ideal in terms of crystal oscillator frequency stability, leading to misalignment with standard time and impaired timed transmission.
Innovation Solution
A method and device for a terminal to request time quality information using uplink messages such as Msg1, Msg3, MsgA, configured grant CG physical uplink shared channel PUSCH, and service request SR, enabling timely updates of time quality information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time quality information is maintained using crystal oscillator in network element devices, then time synchronization can be maintained initially, but over time the error between maintained time and standard time increases due to poor frequency stability
Solution Approach 1:
The terminal periodically sends time quality request information to the network device to obtain updated time quality information. This periodic action ensures that time synchronization is maintained continuously rather than relying solely on initial crystal oscillator maintenance, resolving the drift issue over time.
Solution Approach 2:
The system implements a feedback mechanism where the terminal monitors time quality and actively requests updates from the network device when time quality deteriorates. The network device responds by providing updated time quality information, creating a closed-loop feedback system that maintains accuracy.
2Measurement precision
If time quality information is updated frequently to maintain accuracy, then time synchronization precision improves, but signaling overhead and network resource consumption increase
Solution Approach 1:
The terminal autonomously determines when time quality updates are needed by monitoring time quality parameters itself. Instead of the network device continuously pushing updates, the terminal self-services by sending requests only when necessary, reducing unnecessary signaling overhead while maintaining accuracy.
Solution Approach 2:
The system uses partial action by updating time quality information only when the terminal determines it is needed, rather than continuously. This selective updating approach maintains sufficient accuracy without the excessive signaling overhead of continuous updates.
3Measurement precision
If the terminal actively requests time quality information, then time synchronization accuracy improves, but device complexity and processing overhead increase
Solution Approach 1:
The terminal implements self-service by autonomously monitoring its own time quality and determining when updates are needed. This self-monitoring capability, while adding some complexity, is simpler than continuous network-driven updates and provides better control over when processing is required.
Data Source
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AI summary
This application discloses a request information reporting method, an information configuration method, and a related device, and belongs to the field of communication. The request information reporting method in embodiments of this application includes: obtaining, by a terminal, configuration information from a network device, where the configuration information includes information of time quality; and sending, by the terminal, time quality request information by using a target uplink message, where the target uplink message includes at least one of messages Msg1, Msg3, MsgA, configured grant CG physical uplink shared channel PUSCH, and service request SR.