V2X Response Resource Allocation for Reliable Feedback
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Solution Overview
Problem
Conventional V2X communication systems lack efficient mechanisms for feedback response information transmission, particularly in autonomous mode, where the receive-end terminal device does not reliably notify the transmit-end terminal device about data reception status.
Innovation Solution
A method where a network device configures and indicates separate resources for data transmission and response information transmission between communications devices, allowing the receive-end device to send acknowledgement or negative acknowledgement information on a designated resource, improving communication reliability and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate resources are allocated for data transmission and response information transmission, then reliability of data transmission is improved, but device complexity increases
Solution Approach 1:
The patent segments the communication resource into two distinct parts: data transmission resources and response information transmission resources. This segmentation allows each resource to be optimized independently, with data resources focused on efficient data transfer and response resources dedicated to reliable feedback transmission, thereby improving overall transmission reliability without requiring complex integrated resource management
Solution Approach 2:
The patent introduces a resource indication mechanism that acts as an intermediary between the network device and terminal devices. The network device configures and indicates specific resources for response information transmission, serving as a mediator that coordinates resource allocation between multiple terminal devices without requiring them to directly negotiate or manage each other's resources, thus improving reliability while controlling complexity
2Reliability
If separate resources are configured for response information transmission, then communication reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent creates response information transmission resources that serve multiple terminal device pairs simultaneously. A single configured resource can be used by multiple terminal devices for their respective feedback transmissions, making the resource universal and multi-functional. This approach maintains communication reliability through dedicated response resources while improving resource utilization efficiency by avoiding one-to-one resource allocation
Solution Approach 2:
The patent merges the response information transmission resources across different terminal device communications. Instead of allocating separate dedicated resources for each terminal pair's feedback, the system combines and shares response resources among multiple terminal devices, thereby maintaining reliable feedback transmission while reducing overall resource consumption and improving utilization efficiency
Data Source
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AI summary
This application provides a response information sending and receiving method, a terminal device, a network device, and a system. The sending method includes: receiving, by a first communications device, first indication information from a network device, where the first indication information is used to indicate a first resource for transmitting first data; sending, by the first communications device on the first resource, the first data to a second communications device; receiving, by the first communications device, second indication information from the network device, where the second indication information is used to indicate a second resource for transmitting response information of the first data, and the second source and the first resource do not include a same resource; and receiving, by the first communications device on the second resource, the response information of the first data from the second communications device. According to embodiments of this application, the first communications device and the second communications device may transmit the response information on the second resource configured in a network, and transmission of the response information is implemented in V2X communication.