Wireless Node Link Recovery for Multi-TRP Beam Failures
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Solution Overview
Problem
In wireless communication systems, particularly in multi-Transmission and Reception Point (TRP) scenarios, the rapid recovery of beams during failures is a critical issue that existing technologies have not adequately addressed, leading to potential communication interruptions.
Innovation Solution
A method is introduced where a node in a wireless communication system monitors multiple link failures for a same cell, triggering a link recovery procedure that includes a random access process, with the option of either contention-free or contention-based random access, to quickly recover from beam failures by determining link failures based on signal quality thresholds and initiating recovery procedures accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If beam failure recovery mechanism is activated in multi-TRP scenarios, then beam recovery speed is improved, but communication interruption probability increases due to multiple link failure monitoring
Solution Approach 1:
The patent segments the link failure monitoring into multiple independent signal sets (first signal set and second signal set), each monitored separately for link failure. This segmentation allows the system to trigger recovery procedures based on individual link failures rather than waiting for overall system failure, thereby improving recovery speed while managing interruption probability through targeted recovery actions.
Solution Approach 2:
The patent changes the parameter of link failure detection by introducing multiple signal sets with different reference signals (CSI-RS, SSB) and different monitoring thresholds. By adjusting and comparing measurements across multiple signal sets, the system can more accurately determine link failure conditions, improving both recovery speed and reliability through better detection accuracy.
2Reliability
If multiple link failure monitoring is implemented for the same cell, then communication quality is improved, but system complexity increases
Solution Approach 1:
The patent implements a universal link failure recovery mechanism that handles multiple signal sets (first and second signal sets) through a unified recovery procedure. The same random access procedure and recovery logic are applied regardless of which signal set triggers the failure, making the system multi-functional while maintaining manageable complexity through standardized handling.
Solution Approach 2:
The patent merges the recovery procedures for different signal sets into a unified random access procedure on the same cell. Instead of implementing separate recovery mechanisms for each signal set, the system combines them into a single standardized recovery path, reducing system complexity while maintaining the ability to monitor multiple link failures independently.
Data Source
AI summary
Disclose provides a method and device in a node for wireless communications. A first node receives a first target signal set; determines first target link failure according to a measurement performed on the first target signal set; as a response to the behavior of determining first target link failure, starts a first target link recovery procedure. When the first target signal set comprises a first signal set, the first target link recovery procedure is a first link recovery procedure; when the first target signal set comprises a second signal set, the first target link recovery procedure is a second link recovery procedure; the first signal set and the second signal set respectively comprise at least one reference signal associated with a first cell, and there exists at least one reference signal only belonging to one of the first signal set and the second signal set.