Sidelink Frequency Hopping Coordination for Interference Control
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently coordinating and configuring frequency hopping for sidelink communication, particularly in scenarios involving multiple user equipment (UEs) communicating directly without a base station intermediary, which can lead to interference and suboptimal resource utilization.
Innovation Solution
Implementing methods and apparatuses for frequency hopping coordination and configuration, including the transmission and reception of sidelink frequency hopping parameters and configurations based on predefined settings, allowing UEs to communicate effectively and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If frequency hopping is implemented for sidelink communication without base station coordination, then communication autonomy and speed are improved, but interference and resource collision increase
Solution Approach 1:
The base station acts as an intermediary that coordinates frequency hopping parameters for sidelink communications. It configures and signals frequency hopping patterns, resource allocations, and parameters to multiple UEs, enabling autonomous direct communication while preventing interference through centralized coordination. This resolves the contradiction by maintaining communication speed through UE autonomy while reducing interference via base station mediation.
2Productivity
If autonomous sidelink communication is enabled between UEs, then network dependency and communication speed are improved, but resource coordination and interference management deteriorate
Solution Approach 1:
The base station performs preliminary actions by pre-configuring frequency hopping parameters, resource pools, and coordination rules before autonomous sidelink communication begins. This preliminary setup includes signaling frequency hopping patterns, resource allocations, and conflict resolution mechanisms to UEs, enabling them to communicate autonomously without real-time coordination complexity while maintaining efficient resource utilization.
3Reliability
If frequency hopping parameters are dynamically configured for each UE, then communication adaptability and reliability are improved, but signaling overhead and system complexity increase
Solution Approach 1:
The system dynamically changes frequency hopping parameters such as frequency offsets, hopping patterns, and resource allocations based on channel conditions, traffic requirements, and interference levels. The base station adjusts these parameters and signals them to UEs through efficient signaling mechanisms, achieving high communication reliability through adaptability while minimizing signaling overhead through parameter optimization and selective updating.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive, from abase station, a set of sidelink frequency hopping parameters. The first UE may transmit, to a second UE via a sidelink interface, a frequency hopping configuration for sidelink reference signaling by the second UE, wherein the frequency hopping configuration is based at least in part on the set of sidelink frequency hopping parameters. Numerous other aspects are provided.