Sidelink Buffer Status Report Aggregation for Resource Allocation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing buffer status reports for multiple destination devices in sidelink communications, leading to suboptimal resource allocation and interference management.
Innovation Solution
A method and apparatus for wireless communication that involve receiving buffer status information from multiple devices and transmitting a combined sidelink buffer status report to a base station, allowing the base station to grant resources to be distributed by the user equipment (UE) based on the reported status, enabling more flexible and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate buffer status reports are transmitted for each destination device, then the base station can allocate resources precisely for each device, but the signaling overhead and processing complexity increase significantly
Solution Approach 1:
The patent combines multiple individual buffer status reports into a single aggregated buffer status report that encompasses multiple destination devices. This merging approach reduces the number of separate signaling messages transmitted between user equipment and the base station, thereby decreasing signaling overhead and processing complexity while still enabling the base station to perform resource allocation for multiple devices through the consolidated report
2Manufacturing precision
If individual resource grants are provided for each destination device, then resource allocation accuracy is improved, but the processing time and signaling resources increase
Solution Approach 1:
The patent merges multiple individual resource grant operations into a single aggregated resource grant that covers multiple destination devices. By processing and allocating resources for multiple devices simultaneously through one grant message rather than sequentially through multiple individual grants, the system reduces the total processing time and signaling resources required while maintaining adequate resource allocation accuracy for each device
3Productivity
If detailed buffer status information is reported for each device, then resource allocation efficiency can be optimized, but the uplink signaling load increases
Solution Approach 1:
The patent combines detailed buffer status information from multiple destination devices into a single aggregated report structure. This consolidation maintains the necessary granularity for efficient resource allocation by preserving device-specific buffer status data within the aggregated report, while simultaneously reducing the total uplink signaling volume by transmitting one combined report instead of multiple separate reports
4Measurement precision
If the base station manages resource allocation for multiple sidelink devices individually, then allocation precision is maintained, but the base station processing complexity increases
Solution Approach 1:
The patent enables the base station to process multiple destination devices through a single aggregated buffer status report and corresponding resource grant. This approach maintains allocation precision by preserving device-specific information within the aggregated structures, while reducing base station processing complexity by handling multiple devices in one unified processing cycle rather than through multiple separate processing cycles
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from each of multiple devices that communicate with the UE via one or more sidelink channels, information indicating a buffer status of the device. The UE may transmit, to a base station, a buffer status report that indicates a combined sidelink buffer status for the multiple devices. Numerous other aspects are described.