L1/L2 Triggered Mobility Execution Failure Recovery in 6G
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Solution Overview
Problem
Existing 6G communication systems face challenges in managing execution failure of Layer 1 (L1)/Layer 2 (L2) Triggered Mobility (LTM) in user equipment (UE), which affects signal transmission distance and coverage, especially in terahertz bands.
Innovation Solution
A method is provided for managing execution failure of L1/L2 Triggered Mobility (LTM) in a UE by performing cell selection if an initial LTM execution attempt fails, and attempting further LTM execution if the selected cell is an LTM candidate cell and the UE is configured to do so.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If LTM execution is attempted in terahertz band, then spectral efficiency is improved, but execution failure rate increases due to severe path loss and atmospheric absorption
Solution Approach 1:
The patent applies preliminary action by performing cell selection before attempting LTM execution. The UE first selects a suitable cell and verifies it meets LTM execution conditions (signal quality, coverage) before initiating the high-risk LTM procedure in terahertz band. This preparatory step reduces the failure rate by ensuring the execution environment is favorable.
Solution Approach 2:
The patent implements feedback mechanisms where the UE monitors LTM execution results and provides feedback to the network. When execution fails due to path loss or atmospheric absorption, the UE reports this information back to the network, enabling dynamic adjustment of LTM parameters, power levels, or alternative cell selection to improve subsequent execution success rates.
2Reliability
If cell selection is performed before LTM execution, then execution reliability is improved, but latency increases due to additional processing steps
Solution Approach 1:
The patent performs cell selection and condition verification as preliminary actions before LTM execution. The UE identifies candidate cells, evaluates their suitability based on signal quality metrics, and prepares the execution environment in advance. This reduces the risk of execution failure while minimizing the time penalty through efficient pre-assessment procedures.
Solution Approach 2:
The patent implements dynamic cell selection where the UE continuously monitors cell conditions and adapts its selection based on real-time signal quality, atmospheric conditions, and mobility requirements. This dynamic approach allows the system to quickly identify suitable cells and proceed with LTM execution, balancing reliability improvement with latency constraints through adaptive decision-making.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) communication system or a 6th generation (6G) communication system for supporting higher data rates beyond a 4th generation (4G) communication system, such as long term evolution (LTE). A method of managing execution failure of L1/L2 triggered mobility (LTM), in a user equipment (UE), communicatively coupled to a telecommunication network is provided. The method includes if an initial LTM execution attempt fails, performing, by the UE, cell selection, and if the selected cell is an LTM candidate cell and if the UE has been configured by the telecommunication network to attempt LTM after an LTM execution failure, the attempting, by UE, a further LTM execution.