Synchronization Signal Block Grouping for Timing Advance
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing synchronization signal block subsets from different base stations, leading to increased switching latency and overhead during intra-cell and inter-cell mobility, which affects network performance.
Innovation Solution
The method involves grouping synchronization signal block subsets from different base stations into a single timing advance group, allowing for unified communication and eliminating the need for additional timing advance measurements during base station switching, thereby reducing switching latency and overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If synchronization signal block subsets from different base stations are managed separately, then each base station can be independently controlled, but switching latency and overhead increase during base station transitions
Solution Approach 1:
The patent groups synchronization signal block subsets from multiple base stations into a single timing advance group, merging their management under one timing advance value. This consolidation reduces the number of timing advance measurements and updates required during base station switching, directly reducing switching latency while maintaining manageable complexity through unified control
2Reliability
If multiple timing advance groups are used for different base stations, then timing accuracy for each base station is maintained, but overhead increases during base station switching
Solution Approach 1:
The patent creates a timing advance group that serves multiple base stations simultaneously, making the timing advance mechanism universal across different base stations. This single timing advance group handles synchronization for multiple base stations, reducing the overhead associated with multiple separate timing advance groups while maintaining the reliability needed for accurate timing synchronization
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station, a synchronization signal block (SSB) based at least in part on a determination that the SSB is included in a timing advance group (TAG) that includes a first subset of SSBs of a first set of SSBs associated with the first base station and a second subset of SSBs of a second set of SSBs associated with a second base station. The UE may communicate with the first base station based at least in part on the SSB. Numerous other aspects are described.