Sidelink Frame Structure for Collision Avoidance in Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink communications, particularly in avoiding collisions between in-coverage and out-of-coverage user equipment (UEs) and in providing dedicated resources for groupcast and broadcast transmissions, leading to resource allocation collisions and reduced efficiency.
Innovation Solution
The implementation of a novel sidelink frame structure with a control region and a data region, including separate control regions for in-coverage and out-of-coverage UEs, and dedicated resource pools for groupcast and broadcast communications, along with a common control channel, to enhance resource allocation and collision avoidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control regions are provided for in-coverage and out-of-coverage UEs, then collision avoidance between different UE types is improved, but device complexity increases
Solution Approach 1:
The control region is segmented into separate control regions for in-coverage UEs and out-of-coverage UEs. This segmentation allows different UE types to access dedicated resources without collision, improving reliability while managing complexity through structured resource division.
Solution Approach 2:
Different control regions are allocated with different resource characteristics suitable for specific UE types. In-coverage UEs receive control resources optimized for network-coordinated operations, while out-of-coverage UEs receive resources suited for autonomous operations, improving overall system reliability.
2Productivity
If dedicated resource pools are allocated for groupcast and broadcast transmissions, then resource allocation efficiency is improved, but loss of substance increases
Solution Approach 1:
The resource pool is segmented into dedicated subsets for groupcast and broadcast transmissions. This segmentation improves resource allocation efficiency by preventing collisions between different transmission types, while the overhead is managed through systematic resource bookkeeping and allocation tracking.
3Adaptability or versatility
If a common control channel is implemented for both in-coverage and out-of-coverage UEs, then adaptability is improved, but object-generated harmful factors increase
Solution Approach 1:
The control channel resources are segmented into separate control regions for in-coverage and out-of-coverage UEs within the common control channel framework. This allows the system to maintain adaptability and versatility of the common control channel while eliminating interference and collisions through dedicated resource allocation.
Data Source
AI summary
A wireless communication system includes one or more base stations, and a plurality of user devices, UEs. The plurality of UEs includes a plurality of first UEs operating in a first mode and a plurality of second UEs operating in a second mode. The first UEs and the second UEs are configured for a sidelink communication. A sidelink transmission includes a sidelink frame having a control region and a data region. The control region includes a first control region and a second control region, the first control region for transmitting control data of a first UE, the second control region for transmitting control data of a second UE, and the first and second control regions including a plurality of a common resources.