Target Cell Measurement Triggers for Faster Beam Management
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Solution Overview
Problem
Radio resource management (RRM) measurements in wireless communication systems often fail to perform beam management in a timely manner during cell changes, leading to performance loss.
Innovation Solution
A method and apparatus for a terminal to perform measurements on a target cell based on a first configuration and report the results when a specific event is satisfied, including receiving signaling and ensuring signal quality meets a condition within a defined duration, facilitating timely beam management during cell handover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If L3 measurement is performed for cell change, then cell change can be accomplished, but beam management is not performed in a timely manner leading to performance loss
Solution Approach 1:
The patent applies preliminary action by having the terminal perform L3 measurement on the target cell in advance before the actual cell change is executed. The measurement configuration is set up beforehand, and the terminal continuously monitors signal quality parameters (RSRP, RSRQ, SINR) so that when beam management is needed, the measurement data is already ready, enabling timely beam pair determination without delaying the cell change process
Solution Approach 2:
The patent implements feedback mechanisms where the terminal reports measurement results to the network-side device, and the network-side device provides feedback configuration information including beam management parameters. This closed-loop feedback enables the system to adjust beam pairing decisions based on real-time measurement data, ensuring timely beam management while maintaining efficient cell change operations
2Ease of operation
If measurement result is reported only after cell change is completed, then reporting is simple, but beam management cannot be performed timely
Solution Approach 1:
The terminal performs L3 measurement on the target cell in advance before cell change completion, preparing measurement results (signal quality, beam information) ahead of time. This preliminary measurement action ensures that when beam management is required, the data is already ready, eliminating the need to wait for cell change completion while maintaining simple reporting procedures
Solution Approach 2:
The patent introduces dynamic reporting mechanisms where the terminal can report measurement results at different stages based on network configuration. The reporting trigger can be activated when specific conditions are met (e.g., signal quality threshold, time window after cell change initiation), allowing flexible timing that balances reporting simplicity with beam management timeliness requirements
3Measurement precision
If L1 measurement is performed after L3 measurement, then beam pairing can be determined, but the process is sequential and time-consuming
Solution Approach 1:
The patent merges L3 and L1 measurement processes by having the terminal perform both types of measurements concurrently or in overlapping time windows. The L3 measurement provides macro-level cell information while L1 measurement provides micro-level beam information, and both are integrated to determine optimal beam pairing, eliminating the sequential bottleneck and improving overall measurement speed without sacrificing precision
Solution Approach 2:
The terminal performs L3 measurement as a preliminary action to establish baseline cell information, then immediately proceeds to L1 measurement for beam-specific optimization. By preparing the L3 measurement framework in advance, the subsequent L1 measurement can focus solely on beam pairing without redundant cell-level measurements, significantly reducing total measurement time while maintaining high precision
Data Source
AI summary
This application discloses an information reporting method and apparatus, an information receiving method and apparatus, a terminal, and a network-side device. The information reporting method of embodiments of this application includes: performing, by a terminal, measurement on a target cell based on a first configuration, to obtain a measurement result; and reporting the measurement result in a case that a first event is satisfied; where the first event includes: the terminal receives first signaling, and within a first duration after reception of the first signaling, the terminal obtains through measurement that signal quality of the target cell satisfies a first condition.