Wireless Node Beam Recovery via Signaling Monitoring
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Solution Overview
Problem
The existing beam management mechanisms in wireless communication systems, particularly in NR systems, face challenges in efficiently managing beam failures for PTM/multicast groupcast services, leading to service disruptions and reduced performance.
Innovation Solution
A method is introduced where a node monitors specific channels to detect signaling types in different resource sets, allowing for timely beam recovery and updates, enabling quick recovery of beams for both unicast and PTM/multicast groupcast services by transmitting and receiving signals to determine target times for stopping channel monitoring, thus minimizing service disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the node continuously monitors the first-type channel to detect signaling in resource sets for beam failure recovery, then the reliability of beam recovery is improved, but the energy consumption and processing complexity increase
Solution Approach 1:
The patent implements periodic monitoring of the first-type channel at specific time points (e.g., every 0.5ms or 1ms) rather than continuous monitoring. The node determines a monitoring time point based on the end time of physical downlink shared channel transmission, and only monitors at these periodic intervals within a configured window, reducing energy consumption while maintaining recovery reliability.
Solution Approach 2:
The system pre-configures monitoring parameters including the first time window length, second time window length, and monitoring time point offsets before beam failure occurs. These preliminary configurations allow the node to quickly activate monitoring at appropriate times without real-time decision complexity, balancing reliability and processing load.
2Adaptability or versatility
If the node monitors the first-type channel in both first resource set and second resource set, then the adaptability to different service types is improved, but the device complexity increases
Solution Approach 1:
The patent divides monitoring resources into two distinct resource sets: first resource set for unicast service monitoring and second resource set for multicast/broadcast service monitoring. Each resource set has its own monitoring parameters and time windows, allowing independent optimization and reducing overall monitoring complexity through structured segmentation.
Solution Approach 2:
The same first-type channel monitoring mechanism serves multiple service types (unicast and multicast/broadcast) through the dual resource set configuration. The node uses a unified monitoring procedure that adapts to different service types by selecting appropriate resource sets, achieving multi-functionality without duplicating entire monitoring systems.
3Use of energy by moving object
If the node stops monitoring the first-type channel after target time upon receiving target signaling, then the energy consumption is reduced, but the risk of missing critical beam recovery signaling increases
Solution Approach 1:
The system pre-configures the target time and monitoring window parameters before the node needs to stop monitoring. When target signaling is received, the node can immediately cease monitoring at the predetermined target time without complex real-time decisions, ensuring energy savings while maintaining reliable detection within the configured time boundaries.
Solution Approach 2:
The node receives target signaling that provides feedback about beam status and monitoring requirements. Based on this feedback, the node determines whether to continue or stop monitoring at the target time, creating a closed-loop system that balances energy consumption with detection reliability through informed decision-making.
Data Source
AI summary
The present disclosure provides a method and device in a node for wireless communications. A first node transmits a first signal, and the first signal is used for random access; in response to transmitting the first signal, monitors a first-type channel in a first resource set to detect a first-type signaling; monitors the first-type channel in a second resource set to detect a second-type signaling; receives a target signaling, the target signaling is used to determine a target time; and when the target signaling is a third-type signaling, in response to receiving the target signaling, stops monitoring the first-type channel in the first resource set after the target time; when the target signaling is a fourth-type signaling, in response to receiving the target signaling. The above method can quickly recover a beam for unicast service and a beam for PTM/multicast groupcast service after beam failure.