Sidelink Resource Prioritization for QoS-Aware 5G Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The 5G communication system faces challenges in efficiently providing various services with different requirements, such as enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable and low-latency communications (URLLC), due to the dynamic and service-dependent nature of channel and interference properties in new radio (NR) systems, necessitating optimized resource allocation.
Innovation Solution
A method and apparatus for determining sidelink resources and transmitting or receiving sidelink signals, involving user equipment (UE) receiving scheduling information from a base station, selecting resources from a resource pool, and performing slot mapping for sidelink data transmission, including methods for HARQ-ACK feedback and rate matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic resource allocation is implemented to support diverse services (eMBB, mMTC, URLLC), then service adaptability is improved, but system complexity increases
Solution Approach 1:
The resource pool is segmented into multiple sub-pools, each dedicated to specific service types (eMBB, mMTC, URLLC). This segmentation allows each service to have optimized resource allocation parameters while simplifying the overall management by treating each sub-pool independently according to its service requirements.
Solution Approach 2:
The system implements dynamic resource allocation where resource pool configurations can be adjusted based on service requirements and channel conditions. The base station can dynamically allocate resources from different sub-pools to different UEs depending on the service type and current network state, providing adaptability without requiring complete reconfiguration of the entire system.
2Reliability
If resource pool information is frequently updated to optimize transmission, then transmission reliability is improved, but signaling overhead increases
Solution Approach 1:
Resource pool configuration information is extracted and pre-configured in the UE through system information blocks (SIB) or dedicated RRC signaling before actual data transmission. This allows the UE to have local cached information about resource pools, reducing the need for frequent real-time signaling updates while maintaining reliable transmission through periodic refreshes of this configuration data.
Data Source
AI summary
In an embodiment of the disclosure, an operating method performed by a user equipment (UE) in a wireless communication system includes: receiving, from a base station (BS), an uplink resource configuration (configured grant) including a first quality of service (QOS) threshold and a sidelink resource configuration including a second QoS threshold; determining priority between uplink transmission and sidelink transmission, based on the first QoS threshold and the second QoS threshold; and transmitting at least one of uplink data or sidelink data, based on a result of the determining.