T312 Timer Configuration for Wireless Device Connection Stability
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Solution Overview
Problem
Current wireless communication systems face challenges in minimizing service interruption and latency during radio link failures, as existing timer configurations, such as the T310 timer, may unnecessarily delay connection re-establishment procedures, and the T312 timer is limited in its configuration flexibility, restricting its application to specific handover scenarios and measurement events.
Innovation Solution
A wireless device is configured to start a T312 timer upon fulfillment of multiple conditions, including various measurement events and signal types, allowing for more flexible timer configuration to reduce service interruption and latency, by initiating connection re-establishment or transitioning to an idle state upon timer expiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the T310 timer is used to wait for radio link quality recovery, then connection stability is improved, but service interruption time increases and latency increases
Solution Approach 1:
The patent applies preliminary action by configuring the T312 timer to start in advance under specific conditions (when physical layer problems are detected and measurement reporting events are triggered). This allows the system to prepare for potential connection re-establishment before the T310 timer expires, thereby reducing service interruption time while maintaining connection stability through the dual-timer mechanism.
2Manufacturing precision
If the T312 timer is configured separately for each measurement identity, then configuration precision is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by allowing a single T312 timer configuration to serve multiple measurement identities and multiple types of measurement reporting events. Instead of configuring separate T312 timers for each measurement identity, the system enables one timer configuration to be universally applied across different measurement types (e.g., RSRP, RSRQ, SINR) and events, thereby reducing configuration complexity while maintaining precision through conditional triggering.
3Measurement precision
If the T312 timer is tied to a single measurement reporting event, then measurement precision is improved, but adaptability decreases
Solution Approach 1:
The patent applies dynamics by making the T312 timer starting conditions dynamic and adaptable. The timer can be triggered by multiple types of measurement reporting events (Event A1, A2, A3, A4, A5, etc.) depending on the configured conditions. This dynamic approach allows the system to adapt to different measurement scenarios and network conditions while maintaining measurement precision through event-specific triggering criteria.
Data Source
AI summary
A wireless device (14) is configured for use in a wireless communication system (10). The wireless device (14) starts a timer (28) (e.g., T312) when each of multiple conditions (30) have been fulfilled and physical layer problems for a serving cell of the wireless device (14) have been detected. The multiple conditions (30) have been fulfilled when one or more events have been triggered for measurements of multiple different types and/or for measurements on multiple different types of signals. The wireless device (14) may initiate a connection re-establishment procedure, or transitioning to an idle state, at expiry of the timer (28).