Timing Advance Determination in Sub-Band Full Duplex Wireless Systems
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Solution Overview
Problem
The existing uplink timing advance determining manner is no longer applicable in subband full duplex (SBFD) scenarios, leading to interference and inefficiencies in wireless communication systems.
Innovation Solution
A method for determining timing advance values based on time domain resource sets, where different timing advance values are used for different time domain resources, reducing signaling overheads and improving flexibility and accuracy in full duplex scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single timing advance value is used for all uplink signals in SBFD scenario, then the system can maintain simple timing management, but timing alignment accuracy deteriorates leading to interference
Solution Approach 1:
The patent segments the uplink timing advance management by introducing separate timing advance values for different signal types (first uplink signal and second uplink signal). This segmentation allows independent optimization of timing for each signal type, improving timing alignment accuracy for both signals while maintaining manageable complexity through structured separation.
Solution Approach 2:
The patent applies local quality by assigning different timing advance values (first timing advance value and second timing advance value) to different uplink signals based on their specific requirements. This allows each signal type to have optimized timing characteristics suited to its function, improving overall timing alignment accuracy while managing complexity through localized optimization.
2Measurement precision
If different timing advance values are configured for different time domain resources, then timing accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent segments timing advance configuration into distinct values for different signal types rather than using a single unified value. This segmentation improves timing accuracy for each signal type while managing signaling overhead by organizing the configuration in a structured manner that can be efficiently transmitted and managed.
Solution Approach 2:
The patent creates a universal timing advance configuration framework that can handle multiple signal types with different timing requirements. By establishing a multi-functional timing management system that accommodates both first and second uplink signals, the patent improves accuracy across different signal types while maintaining efficient signaling through a unified configuration approach.
Data Source
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AI summary
Disclosed in the present application are a method and apparatus for wireless communication. The method comprises: a node first receiving a first information block, the first information block being used for determining a first timing advance value; starting or restarting a first timer in response to receiving the first information block; and then sending a target signal, wherein whether the first timing advance value is used for the sending timing of the target signal is related to a time domain resource occupied by the target signal; when the time domain resource occupied by the target signal belongs to a first time domain resource set, the first timing advance value is used for the sending timing of the target signal; and when the time domain resource occupied by the target signal does not belong to the first time domain resource set, the first timing advance value is not used for the sending timing of the target signal. The present application improves the timing advance determination mode in a sub-band full multiplexing scenario, thereby improving the overall performance and flexibility of a system.