Joint Communication-Radar Resource Allocation Using Dual Radio Bearers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing joint communication and radar (JCR) systems face challenges in efficiently allocating resources between communication and sensing operations, leading to suboptimal performance in terms of reliability, resource utilization, and latency.
Innovation Solution
The proposed solution involves prioritizing sensing operations over communication operations by comparing quality of service parameters associated with sensing and communication radio bearers, such as SSRB and DRB, to determine an appropriate resource allocation, allowing for improved resource management in JCR systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If resources are allocated to both sensing and communication operations simultaneously, then resource utilization improves, but interference between operations increases and performance deteriorates
Solution Approach 1:
The patent segments resource allocation by introducing separate radio bearers (SSRB for sensing, DRB for communication) with distinct QoS parameters. This segmentation allows independent optimization of sensing and communication resources while preventing interference, resolving the contradiction between resource utilization and operation performance.
Solution Approach 2:
The patent implements dynamic resource allocation where the UE compares QoS parameters (priority, latency, reliability) of SSRB and DRB in real-time. Based on this dynamic comparison, the system adjusts resource allocation to prioritize sensing or communication operations as needed, maintaining high performance while utilizing resources efficiently.
2Reliability
If sensing operations are prioritized over communication operations, then sensing reliability improves, but communication latency increases
Solution Approach 1:
The patent changes the priority parameter dynamically based on QoS comparison. When sensing QoS parameters indicate higher priority needs, the system adjusts resource allocation to favor sensing; when communication latency requirements become critical, it shifts resources to communication. This parameter-based dynamic adjustment resolves the contradiction between sensing reliability and communication latency.
3Reliability
If separate resource allocation is used for sensing and communication, then operation reliability improves, but resource utilization efficiency decreases
Solution Approach 1:
The patent creates a universal resource allocation framework where a single set of resources can serve both sensing and communication functions through the radio bearer mechanism. The same physical resources are allocated dynamically to different logical channels (SSRB/DRB) based on real-time QoS needs, achieving both high reliability through separate logical treatment and high efficiency through shared physical resources.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A base station may identify a first radio bearer to be used for sensing operations and a second radio bearer to be used for data communications. The base station may transmit, to a user equipment (UE), a control message indicating the first radio bearer and the second radio bearer, where the first radio bearer and the second radio bearer may be indicative of a resource allocation for the sensing operations and the data communications. The UE may perform the sensing operations in accordance with a resource allocation, and perform the data communications in accordance with the resource allocation, where the resource allocation may be based on the first radio bearer and the second radio bearer. The UE may perform the sensing operations and the data communications in accordance with a joint communication and radar (JCR) system.