V2X Signal Transmission ACK/NACK Resource Management
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting Vehicle-to-Everything (V2X) signals, particularly in managing ACK/NACK signals for multiple receiving user equipment, which affects reliability and resource utilization in broadcast/multicast scenarios.
Innovation Solution
A method for transmitting V2X signals in a wireless communication system that involves checking ACK/NACK signals in a specific resource region, using beamforming precoding, and configuring user equipment to transmit reference signals with the same sequence, allowing for efficient resource allocation and error detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If broadcast/multicast is used to transmit V2X signals to multiple receiving user equipments, then the coverage and service capability are improved, but the complexity of managing ACK/NACK signals from multiple users increases
Solution Approach 1:
The patent combines ACK/NACK signals from multiple receiving user equipments into a single resource region for transmission to the transmitting user equipment. This merging approach reduces the complexity of managing individual ACK/NACK signals from each user while maintaining the ability to detect acknowledgment status across multiple receivers in the broadcast/multicast V2X scenario.
2Reliability
If individual ACK/NACK resources are allocated to each receiving user equipment, then the reliability of individual signal acknowledgment is improved, but the resource utilization efficiency deteriorates
Solution Approach 1:
The patent merges multiple ACK/NACK resources into a shared resource region that serves multiple receiving user equipments simultaneously. This approach improves resource utilization efficiency by eliminating redundant resource allocations while maintaining reliable acknowledgment detection through the combined signal structure that preserves individual user information within the aggregated resource.
3Productivity
If a specific ACK/NACK resource region is allocated for V2X broadcast/multicast, then the resource allocation efficiency is improved, but the difficulty of detecting and managing signals from multiple users increases
Solution Approach 1:
The patent segments the combined ACK/NACK signal from multiple users into distinguishable components through structured resource allocation and signal design. By organizing the aggregated signals in a specific resource region with defined structures, the transmitting user equipment can efficiently detect and differentiate individual acknowledgments within the combined signal, reducing the difficulty of signal detection despite the multi-user scenario.
Data Source
AI summary
The present invention relates to a method and device for transmitting a vehicle-to-everything (V2X) signal by a V2X transmission terminal in a wireless communication system. More particularly, the present invention comprises the steps of: broadcasting/multicasting a V2X signal to a plurality of reception terminals; and checking acknowledgement/negative-acknowledgement (ACK/NACK) for the plurality of reception terminals in an ACK/NACK resource region specifically associated with the V2X signal.