Mobile Station Measurement Report Synchronization
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Solution Overview
Problem
In conventional mobile communication systems, the frequent transmission of measurement reports by mobile stations wastes radio resources as the number of cells to be measured increases, leading to inefficient use of radio resources.
Innovation Solution
A mobile station is configured to start transmitting measurement reports at specific intervals based on a monitor period, with the option to adjust or synchronize these intervals for multiple cells, ensuring that reports are transmitted at the same or adjusted timings to minimize overlapping resource allocation requests, thereby reducing unnecessary transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile station transmits measurement reports for each cell independently at separate intervals, then the measurement reporting function is complete and reliable, but radio resources are wasted due to frequent and overlapping transmissions
Solution Approach 1:
The patent combines multiple measurement report transmissions into a single unified transmission by synchronizing reporting intervals across different cells. When the mobile station has measurement reports for multiple cells, it aligns their transmission timings so that reports are sent together in one PUCCH resource rather than separately, thereby reducing radio resource consumption while maintaining complete measurement reporting functionality.
2Loss of time
If the mobile station transmits measurement reports more frequently to ensure timely updates, then the measurement information freshness is improved, but the scheduling request overhead and PDCCH overhead increase
Solution Approach 1:
The patent implements periodic measurement report transmission with synchronized intervals across multiple cells. The mobile station determines a common reporting interval that applies to all measured cells, creating regular periodic transmission patterns. This ensures measurement information remains fresh and up-to-date while avoiding the overhead of individual scheduling requests for each cell, as the periodic nature allows for resource allocation without continuous scheduling interactions.
3Productivity
If the mobile station uses separate reporting intervals for different cells, then each cell's measurement reporting is optimized independently, but the overall system efficiency decreases due to overlapping resource allocations
Solution Approach 1:
The patent applies a universal reporting interval configuration that serves multiple cells simultaneously. Instead of optimizing separate reporting intervals for each cell, the system uses a common reporting interval that works for all measured cells, allowing the same PUCCH resource to handle measurements from multiple cells. This multi-functional approach maintains reporting efficiency while eliminating the complexity of managing overlapping resource allocations for different cells.
Data Source
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AI summary
A mobile station (UE) according to the present invention is configured to repeatedly transmit a first measurement report including a radio quality of a first cell and to repeatedly transmit a second measurement report including a radio quality of a second cell at the same timings, when the mobile station starts transmitting the first measurement report and thereafter starts transmitting the second measurement report.