V2X Transceiver Reliability via Dynamic Resource Pool Duplication
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Solution Overview
Problem
Current wireless communication networks face challenges in ensuring reliable data transmission for ultra-reliable low latency communications (URLLC) and Vehicle-to-Everything (V2X) applications, particularly in resource pool sharing modes 3 and 4, where resource collisions and lack of centralized scheduling can lead to inefficiencies and reduced reliability.
Innovation Solution
A transceiver configuration that re-transmits data packets on different sidelink resource pools or component carriers based on a Per-Packet Priority Reliability (PPPR) value, ensuring high reliability data handling by duplicating packets on shared or exceptional resource pools, and using PPPR information for network slicing and resource reservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are re-transmitted on different sidelink resource pools based on PPPR values, then data transmission reliability is improved, but resource pool complexity and device complexity increase
Solution Approach 1:
The patent implements dynamic resource pool selection where the transceiver adapts its transmission strategy based on real-time PPPR values. The system dynamically determines whether to re-transmit packets on alternative resource pools based on the reliability requirements indicated by PPPR, making the resource allocation flexible and adaptive rather than static
Solution Approach 2:
The patent changes the transmission parameters (resource pool selection, re-transmission behavior) based on the PPPR parameter. By monitoring PPPR values and adjusting resource allocation decisions accordingly, the system optimizes reliability for high-PPPR packets while managing resource usage efficiently
2Reliability
If packet duplication is performed on shared or exceptional resource pools, then reliability for URLLC and V2X services is improved, but resource allocation complexity increases
Solution Approach 1:
The patent segments the resource pool management by creating distinct handling procedures for different resource pool types (shared vs. exceptional). The system divides packet handling into different paths based on the resource pool category, with specific duplication strategies applied to each type, thereby organizing complexity into manageable segments
Solution Approach 2:
The patent implements packet duplication by creating copies of data packets and transmitting them on alternative resource pools. This copying mechanism ensures that critical packets are sent multiple times through different channels, improving the probability of successful delivery while maintaining organized resource usage
3Reliability
If centralized scheduling is implemented for resource pool management, then resource collision is reduced, but scheduling overhead and latency increase
Solution Approach 1:
The patent introduces the PPPR value as an intermediary parameter that carries reliability requirement information from the application layer to the physical layer. This intermediary enables the system to make autonomous scheduling decisions at the transceiver level without requiring constant centralized intervention, thus reducing scheduling latency while maintaining collision avoidance through PPPR-guided resource selection
Data Source
AI summary
Embodiments provide a transceiver for a wireless communication system, wherein the transceiver is configured to communicate with at least one other transceiver of the wireless communication system using sidelink resource pools [e.g., mode 3 resource pool, mode 4 resource pool, shared resource pool, unshared resource pool or exceptional resource pool] of the wireless communication system, wherein the transceiver is configured to transmit a data packet on one of the sidelink resource pools of the wireless communication system to the other transceiver of the wireless communication system, wherein the transceiver is configured to, if a PPPR value associated with the data packet or with data contained in the data packet indicates a high reliability [of the data packet], to re-transmit the data packet at least on once on another sidelink resource pool of the sidelink resource pools of the wireless communication system.