Sidelink Resource Pool Allocation With Dedicated Feedback Channels
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Solution Overview
Problem
Current wireless communication standards do not support feedback channels for sidelink communication, which is necessary for new services like unicast and groupcast.
Innovation Solution
Configuring resource pools for sidelink communications to include dedicated resources for control, data, and feedback information, enabling feedback channels for direct UE-to-UE communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current 3GPP resource pool allocation is used for sidelink communication, then resource allocation for data and control information is supported, but feedback channel transmission is not supported
Solution Approach 1:
The resource pool is segmented into distinct types: data resources, control information resources, and feedback resources. This segmentation allows each resource type to be independently configured and managed, enabling feedback channel support while maintaining clear resource allocation structures for data and control information.
Solution Approach 2:
The resource pool configuration is designed to be universal by supporting multiple resource types within a single pool structure. The same resource pool can accommodate data transmission, control information exchange, and feedback channel operations, making the system versatile without requiring separate dedicated structures for each function.
2Reliability
If dedicated feedback resources are added to resource pools, then feedback information exchange is enabled, but resource pool configuration complexity increases
Solution Approach 1:
Feedback resources are configured with specific local qualities distinct from data and control resources. Each resource type has tailored characteristics optimized for its specific function, allowing feedback information exchange with appropriate reliability while maintaining manageable configuration through localized resource properties rather than global complexity.
3Adaptability or versatility
If resource pools are configured to support multiple communication types, then service versatility is improved, but resource allocation complexity increases
Solution Approach 1:
The resource pool configuration employs dynamic characteristics where resources can be flexibly allocated and reconfigured based on service requirements. The system can adaptively assign resources for different communication types (unicast, groupcast, broadcast) without requiring static complex allocation mechanisms, thereby improving service versatility while keeping resource allocation manageable through dynamic adjustment.
Data Source
AI summary
A system and method for configuring feedback channel allocation and transmission during sidelink communication are disclosed herein. In one embodiment, an example wireless communication method includes: configuring, by a wireless communication node, a plurality of resource pools for sidelink communications. The method further includes configuring, by the wireless communication node, a first list indicating a first subset of the plurality of resource pools and a second list indicating a second subset of the plurality of resource pools. Each of the plurality of resource pools includes at least one of a first type of resources that are each configured for a plurality of wireless communication devices to communicate control information in the sidelink communications, a second type of resources that are each configured for the plurality of wireless communication devices to communicate data in the sidelink communications, and a third type of resources that are each configured for the plurality of wireless communication devices to communicate feedback in the sidelink communications.