Full Duplex Timing Advance Timer for Partial Compensation
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Solution Overview
Problem
Current wireless communication systems face challenges in maintaining synchronization and resource efficiency during full duplex operations due to partial timing advance compensation, leading to potential communication degradation and resource wastage when uplink timing is out of alignment.
Innovation Solution
Implementing a new timing advance timer configured for full duplex with partial TA compensation, which includes starting a TA timer upon receiving a TA command and performing synchronization procedures upon expiration, allowing for better synchronization and resource conservation by adjusting timer durations based on synchronization speed and mode switches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If partial timing advance compensation is used in full duplex mode, then uplink timing alignment is improved, but synchronization maintenance becomes challenging when the timer expires
Solution Approach 1:
The patent introduces a specific timer mechanism that is started when full duplex mode is activated and expired when uplink timing alignment is no longer maintained. This preliminary action allows the system to proactively detect synchronization loss and trigger appropriate recovery procedures before communication degradation occurs.
Solution Approach 2:
The timer expiration serves as a feedback mechanism that informs the system when partial timing advance compensation is no longer effective. This feedback triggers synchronization procedures to restore proper uplink timing alignment, creating a closed-loop control system that maintains synchronization reliability.
2Reliability
If synchronization procedures are performed frequently to maintain alignment, then communication reliability is improved, but processing and signaling resources are wasted
Solution Approach 1:
Instead of continuous synchronization monitoring, the patent implements periodic action through a timer that expires only when synchronization is lost. This allows the system to maintain reliability by performing synchronization procedures only when necessary, rather than continuously, thereby conserving processing and signaling resources.
Solution Approach 2:
The timer mechanism automatically detects when synchronization is maintained or lost without requiring continuous external intervention. The system serves itself by using the timer expiration as an automatic trigger for synchronization procedures, eliminating the need for frequent resource-intensive monitoring and manual synchronization management.
3Productivity
If a long timer duration is used for partial TA compensation, then resource efficiency is improved, but synchronization responsiveness deteriorates
Solution Approach 1:
The patent changes the timer duration parameter dynamically based on the duplex mode. When full duplex mode is activated, a specific timer duration is configured that balances resource efficiency with synchronization responsiveness. This parameter adjustment allows the system to optimize both resource usage and synchronization speed according to operational requirements.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a timing advance (TA) command indicating partial TA compensation, start a TA timer for partial TA compensation for full duplex based at least in part on receiving the TA command, and perform a synchronization procedure based at least in part on expiration of the TA timer for partial TA compensation for full duplex. Numerous other aspects are provided.