Synchronizing Multi-Carrier Measurement Reports
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Solution Overview
Problem
In multicarrier systems, maintaining multiple active sets requires excessive measurement reports and signaling, leading to inefficiencies in handover processes and resource consumption.
Innovation Solution
Adjusting the reporting time points of measurement reports for multiple carriers to synchronize or overlap them, reducing the need for separate reporting of measurement reports by adjusting hysteresis waiting times and timers, allowing carriers to report simultaneously or using network indications to adjust reporting times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE maintains independent active sets on each carrier to ensure macro diversity handovers, then handover reliability is improved, but the number of measurement reports and signaling increases excessively
Solution Approach 1:
The patent merges the measurement reporting processes of multiple carriers by synchronizing their reporting time points. When measurement reports from different carriers are scheduled to be reported at the same time, they are combined into a single unified report, reducing the total number of separate signaling messages while maintaining the ability to track active sets on each carrier independently
Solution Approach 2:
The patent creates a universal measurement report structure that can carry measurement information from multiple carriers simultaneously. This single report format serves multiple functions by including measurement results, active set information, and handover recommendations for different carriers in one standardized message
2Measurement precision
If separate measurement reports are sent for each carrier, then measurement precision is maintained, but signaling overhead and resource consumption increase
Solution Approach 1:
Multiple carrier measurement reports are merged into a single composite report message. Each carrier's measurement data is included as a separate element within the unified report structure, preserving individual measurement precision while reducing the total quantity of signaling messages transmitted over the air interface
3Measurement precision
If measurement reports are reported at different time points for each carrier, then individual carrier measurement accuracy is improved, but handover efficiency decreases due to multiple separate reports
Solution Approach 1:
The patent implements synchronized periodic reporting where measurement reports from multiple carriers are aligned to the same reporting周期 (period). This periodic synchronization ensures that each carrier's measurements are taken and reported at regular intervals while maintaining the same time point across carriers, improving handover efficiency without sacrificing measurement accuracy
Data Source
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AI summary
The present invention discloses a method and a device for reporting measurement reports of multiple carriers. The method for reporting measurement reports of multiple carriers includes: determining that a first carrier and a second carrier enter hysteresis waiting for reporting measurement reports, and an expected reporting time point of a measurement report of the first carrier is earlier than that of a measurement report of the second carrier; adjusting the reporting time point of the measurement report of the first carrier and that of the measurement report of the second carrier to a same time point; and reporting the measurement report of the first carrier and that of the second carrier at the same time point. Adopting the present invention can reduce the number of reported measurement reports during maintenance of multiple active sets.