Base Station Sidelink Resource Allocation for NR V2X
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current resource allocation methods for New Radio (NR) Vehicle-to-Everything (V2X) communication, such as centralized scheduling from a base station and autonomous selection from user equipment, face challenges in achieving high transmission reliability and low communication delay while optimizing spectrum resource utilization.
Innovation Solution
The proposed method involves a base station receiving a buffer status report (BSR) from a first user equipment (UE), sending scheduling information to a corresponding second UE based on the BSR, and allocating sidelink (SL) resources to the first UE based on SL resource perception information reported by the second UE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized scheduling from base station is used, then transmission reliability is improved, but communication delay increases
Solution Approach 1:
The base station performs preliminary actions by sending scheduling information to the second UE before the actual resource allocation is needed. This allows the second UE to report resource perception information in advance, enabling the base station to make informed resource allocation decisions that balance reliability and delay requirements.
Solution Approach 2:
The patent implements a feedback mechanism where the second UE reports SL resource perception information back to the base station. This feedback loop allows the base station to adjust resource allocations dynamically, improving transmission reliability while minimizing communication delay by making data-driven decisions.
2Loss of time
If autonomous selection from user equipment is used, then communication delay is reduced, but transmission reliability deteriorates
Solution Approach 1:
The base station acts as an intermediary that coordinates resource allocations between multiple UEs. By receiving perception information from the second UE and using it to allocate resources to the first UE, the base station mediates the autonomous selection process, maintaining low delay while improving reliability through centralized coordination.
3Productivity
If resource pool sharing between centralized scheduling and autonomous selection is implemented, then spectrum resource utilization is improved, but resource allocation complexity increases
Solution Approach 1:
The patent changes key parameters including the introduction of BSR (buffer status report) and SL resource perception information as new state variables. These parameter changes enable dynamic resource allocation that improves spectrum utilization while the structured approach to handling these parameters manages the complexity through systematic information collection and processing.
Data Source
AI summary
An information processing method, and the method includes: receiving, by a base station, a buffer status report BSR sent by a first user equipment UE; sending, by the base station, scheduling information to a corresponding second UE based on at least one of a number of the first UEs and the BSR; and allocating SL resource to the first UE according to received sidelink SL resource perception information reported by the second UE based on the scheduling information.