Relay Node Predictive Scheduling for mmWave CV2X
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Solution Overview
Problem
In 5G New Radio (NR) systems, especially in CV2X scenarios, the combination of moving vehicles and beamforming complicates the initiation of communication between devices, as traditional discovery and random access procedures are time-consuming and can interrupt existing communication channels, particularly when vehicles are in motion and positions change rapidly.
Innovation Solution
A relay node coordinates communication resources between vehicles, predicts communication conditions based on position and motion information, and reserves resources to establish communication channels without the need for discovery and random access procedures, allowing direct communication between vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional discovery and random access procedures are used to establish communication channels between vehicles, then communication can be initiated between devices, but communication latency increases and existing communication channels are interrupted
Solution Approach 1:
The relay node performs preliminary actions by predicting future communication conditions based on current position and motion information of vehicles. It proactively reserves communication resources before the actual communication is needed, allowing vehicles to skip the traditional discovery and random access procedures and directly use the pre-reserved resources for communication.
2Reliability
If traditional discovery and random access procedures are used to establish communication channels, then communication can be initiated, but resource usage increases due to signaling overhead
Solution Approach 1:
The relay node performs preliminary actions by predicting future communication conditions based on current position and motion information of vehicles. It proactively reserves communication resources before the actual communication is needed, allowing vehicles to skip the traditional discovery and random access procedures and directly use the pre-reserved resources for communication.
Solution Approach 2:
The invention extracts and removes the traditional discovery and random access procedures from the communication establishment process. By using predictive scheduling based on pre-shared resources, the patent eliminates the need for these time-consuming and resource-intensive procedures, directly transitioning to data transmission.
3Reliability
If beamforming techniques are used in NR systems for CV2X communications, then communication directionality is improved, but device complexity increases
Solution Approach 1:
The relay node serves multiple functions simultaneously: it acts as a communication intermediary, performs predictive scheduling, manages resource allocation, and coordinates beamforming operations. By consolidating these functions in a single node, the system achieves efficient mmWave communication without requiring complex distributed coordination between multiple devices.
Data Source
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AI summary
Methods, apparatuses, and computer-readable mediums for wireless communication are disclosed by the present disclosure. In an example, a relay node may determine a first predicted motion of a first vehicle including a first wireless communication device having a first established communication channel with the relay node. The relay node may determine that the first predicted motion will trigger a communication condition for the first vehicle and a second wireless communication device having a second established communication channel with the relay node. The relay node may reserve radio resources for a third communication channel between the first wireless communication device and the second wireless communication device.