Mini Resource Pool Allocation for Group Sidelink Communications
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently allocating resources for group communications, leading to increased signaling overhead and degraded performance due to competition for resources among UEs, especially in scenarios requiring high reliability and low latency.
Innovation Solution
The implementation of mini resource pools (mini-RPs) dedicated for group communications, where resources are pre-allocated by the base station for exclusive use within groups, reducing the need for individual member requests and optimizing bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual UEs request resources from the base station for group communications, then resource allocation flexibility is improved, but signaling overhead increases and latency increases
Solution Approach 1:
The resource pool is segmented into multiple mini-resource pools, each dedicated to specific groups of UEs. This segmentation allows groups to have pre-allocated resources without individual request overhead, resolving the contradiction between allocation flexibility and signaling latency.
Solution Approach 2:
Resources are pre-allocated to groups through mini-resource pools before actual communication needs arise. This preliminary action eliminates the need for individual UEs to request resources during communication, reducing signaling overhead and latency while maintaining adaptability through group-based management.
2Manufacturing precision
If individual UEs request resources from the base station, then resource allocation precision is improved, but processing complexity increases
Solution Approach 1:
Multiple individual UE resource requests are merged into group-based mini-resource pool allocations. This combining approach maintains allocation precision at the group level while significantly reducing the processing complexity that would result from handling individual requests from each UE.
3Reliability
If dedicated resources are allocated for group communications, then communication reliability is improved, but resource utilization efficiency may deteriorate
Solution Approach 1:
The mini-resource pool allocations are dynamic and can be adjusted by the base station based on actual group communication needs. This dynamic allocation ensures reliable dedicated resources for groups while maintaining overall resource utilization efficiency through flexible reconfiguration.
Data Source
Figure 1(a)~1(b)
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Figure 4
AI summary
An apparatus for a wireless communication system is described. The wireless communication system includes a plurality of base stations and a plurality of user devices, UEs. The apparatus is configured to be connected to a base station for a communication with the base station, and one or more UEs via a sidelink for a sidelink communication with the one or more UEs, the apparatus and the one or more UEs forming a group of user devices. The apparatus is configured to request from a base station, directly or indirectly, resources to be used for the sidelink communication with the one or more UEs of the group of user devices, and obtain from the base station, directly or indirectly, information about at least one set of resources to be used for the sidelink communication within the group, each of the sets of resources being only or exclusively used within the group of user devices, the group members including the apparatus and the one or more UEs of the group.