Dedicated Sidelink Resource Pool for Control Signaling
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing sidelink control information, leading to potential contentions and interruptions in data communication due to delays in transmitting control information, especially when a threshold amount of data needs to be accumulated before transmitting sidelink control channels.
Innovation Solution
A dedicated sidelink resource pool is established for the communication of control information, allowing transmitting UEs to send control information without delays by reserving resources, enabling receiving UEs to avoid using reserved resources and thus preventing contentions, and allowing flexible communication based on payload size, repetition, and aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If sidelink control information is transmitted only after accumulating a threshold amount of data, then resource usage efficiency is improved, but transmission delay increases and communication continuity deteriorates
Solution Approach 1:
The patent segments the sidelink resource pool into two distinct parts: a dedicated resource pool for control information transmission and a shared resource pool for data transmission. This segmentation allows control information to be transmitted independently without waiting for data accumulation, resolving the contradiction between resource efficiency and transmission delay.
Solution Approach 2:
The dedicated sidelink control channel acts as an intermediary between the data transmission process and control signaling. It enables control information to be transmitted separately from data, eliminating the delay caused by waiting for data accumulation while still allowing resource pool management to optimize overall resource usage.
2Productivity
If sidelink control information is transmitted in a shared resource pool, then resource utilization is optimized, but contentions and interruptions occur reducing reliability
Solution Approach 1:
The patent divides the resource pool into dedicated and shared portions, allocating specific resources exclusively for control information transmission. This segmentation eliminates contentions between control and data transmissions while maintaining efficient resource utilization through the shared pool for data purposes.
Solution Approach 2:
The patent applies different resource allocation strategies to different parts of the resource pool: dedicated allocation for control information to ensure reliability and prevent contentions, and shared allocation for data to optimize resource utilization. Each part has optimized quality characteristics for its specific function.
3Reliability
If a dedicated resource pool for control information is established, then transmission reliability is improved, but resource overhead increases
Solution Approach 1:
The patent implements partial dedication of resources by establishing a dedicated control resource pool that occupies only a portion of the total sidelink resources. This partial action provides sufficient reliability for control information transmission while avoiding excessive resource overhead that would result from complete separation of control and data resources.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information associated with a dedicated resource pool dedicated for communication of sidelink control information in a sidelink network. The UE may transmit or receive the sidelink control information in the sidelink network utilizing the dedicated resource pool. Numerous other aspects are described.