Beam Switch Mode Determination for Wireless Signaling Reduction
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in beam switching, leading to undesirable signaling overhead and workload due to the simultaneous triggering of intra-node and inter-node beam switch modes without differentiation, resulting in unnecessary inter-node signaling and potential performance losses.
Innovation Solution
A method that determines the beam switch mode based on the quality of the current beam, selectively triggering either intra-node or inter-node beam switch modes by setting threshold values, and guiding the mobile terminal to perform measurements on candidate beams, thereby reducing signaling overhead and workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both intra-node beam switch mode and inter-node beam switch mode are triggered simultaneously without differentiation, then the mobile terminal can measure all neighboring beams including local beams and neighbor beams, but this causes undesirable signaling overhead and workload
Solution Approach 1:
The patent segments the beam switching process into two distinct modes: intra-node beam switching (for local beams from the same base station) and inter-node beam switching ( for neighbor beams from other base stations). This segmentation allows the system to selectively trigger only the necessary measurement mode based on the serving beam quality, avoiding unnecessary measurements and reducing signaling overhead while maintaining measurement completeness when needed.
2Reliability
If inter-node beam switch mode is triggered unnecessarily when serving beam quality is moderate, then the mobile terminal performs measurements on neighbor beams, but this causes potential performance losses due to inter-node ping-pong effect
Solution Approach 1:
The patent introduces threshold-based parameter changes to control beam switching decisions. When the serving beam quality (RSRP) falls below a first threshold, intra-node beam switching is triggered; when it falls below a second, lower threshold, inter-node beam switching is triggered. This parameter-based control prevents unnecessary inter-node switching when beam quality is moderate, avoiding the ping-pong effect and maintaining service quality.
Data Source
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AI summary
Embodiments of the disclosure generally relate to beam switching in a wireless communication network. A device in the wireless communication network determines a beam switch mode based on a first measurement on quality of a current beam serving a mobile terminal. The beam switch mode is associated with at least one candidate beam. Then, the device sends an indication of the beam switch mode to the mobile terminal to trigger the mobile terminal to perform a second measurement on a mobile reference signal associated with the at least one candidate beam. In response to receiving the second measurement from the mobile terminal, the device determines a target beam from the at least one candidate beam and the current beam based on the second measurement. In this way, the target beam may be determined in an efficient way.