Sidelink Relay Discovery Resource Pools for Coverage and Reliability
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Solution Overview
Problem
There is a demand for methods to enhance service coverage, increase data transmission reliability, and reduce power consumption in direct communication between terminals using sidelink communication in wireless communication systems, particularly in 5G networks.
Innovation Solution
A method and apparatus for allocating resources for sidelink relay discovery messages, allowing terminals to identify and utilize shared or dedicated resource pools to transmit or receive sidelink relay discovery messages, thereby extending service coverage, improving reliability, and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct communication is performed between terminals using sidelink communication, then service coverage and data transmission reliability are improved, but power consumption increases
Solution Approach 1:
The patent introduces a relay discovery message mechanism where terminals can discover and utilize relay nodes for indirect communication. This intermediary approach allows terminals to extend communication range and improve reliability through relay assistance while managing power consumption by providing alternative communication paths rather than requiring all terminals to maintain high-power direct links.
Solution Approach 2:
The patent implements dynamic resource allocation for relay discovery messages, where resource pools are flexibly configured and assigned based on communication needs. This dynamic approach allows the system to adapt resource allocation to actual requirements, improving reliability when needed while conserving power when direct communication suffices.
2Length of moving object
If resource pools are allocated for sidelink relay discovery messages, then service coverage is extended, but device complexity increases
Solution Approach 1:
The patent divides resource pools into specific segments for relay discovery messages, separating them from other sidelink communication resources. This segmentation allows for targeted resource allocation that extends service coverage for relay discovery while managing complexity by creating dedicated, simplified resource pools rather than requiring complex multiplexing across all resources.
Solution Approach 2:
The patent applies local quality by configuring specific resource pool parameters (such as periodicity, frequency resources, and time resources) tailored to relay discovery requirements. This localized optimization extends coverage for relay discovery functions while avoiding the need to complicate the entire resource allocation system, as only specific local parameters are adjusted.
Data Source
AI summary
Methods and apparatuses for a sidelink relay discovery message are provided in a wireless communication system. The method of user equipment (UE) comprises identifying a resource pool configured by a base station (BS), including at least one of a shared resource pool or a dedicated resource pool, determining a resource for the sidelink relay discovery message based on the identified resource pool and performing, based on the determined resource, transmission or reception of the sidelink relay discovery message.