V2X Indication Signaling for Assisted Resource Selection
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Solution Overview
Problem
In vehicle-to-everything (V2X) communication, resource selection reliability is reduced when a terminal apparatus cannot provide assistance to another terminal apparatus, especially in resource scheduling mode-2, leading to inefficiencies in resource allocation.
Innovation Solution
A method where a second terminal apparatus determines its capability to provide auxiliary resource information to a first terminal apparatus based on range or direction indication information, sending appropriate indication information to improve resource selection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal apparatus requests auxiliary resource information from multiple receiving terminal apparatuses in resource scheduling mode-2, then the resource selection reliability may be improved through assistance, but when a large quantity of receiving terminal apparatuses exist or none can provide assistance, the system overhead increases and resource selection reliability decreases
Solution Approach 1:
The patent applies local quality by introducing geographical location-based differentiation in the resource assistance mechanism. Receiving terminal apparatuses within a specific geographical range relative to the sending terminal are selected to provide auxiliary resource information, while those outside the range do not participate. This localized approach ensures that only relevant terminals (those in proximity where resource conditions are similar) provide assistance, reducing unnecessary system overhead while maintaining resource selection reliability for the sending terminal.
2Reliability
If geographical location information is used to determine which terminal apparatuses provide resource assistance, then resource selection reliability is improved by properly identifying capable terminals, but the device complexity increases due to location processing requirements
Solution Approach 1:
The patent applies segmentation by dividing the set of receiving terminal apparatuses into distinct groups based on their geographical locations: those within the effective range that can provide resource assistance and those outside the range that cannot. This segmentation is achieved through location information processing, which partitions terminals into capability groups, allowing the sending terminal to efficiently identify and receive assistance only from appropriate terminals, thereby improving resource selection reliability without requiring complex processing at each terminal.
Data Source
AI summary
An indication information sending method includes receiving, by a second terminal apparatus, first information, and determining, based on the first information, whether the second terminal apparatus is capable of providing auxiliary resource information for a first terminal apparatus. The auxiliary resource information is for determining a sending resource of the first terminal apparatus. The method further includes, in response to the second terminal apparatus being capable of providing the auxiliary resource information for the first terminal apparatus, sending first indication information to the first terminal apparatus, where the first indication information includes the auxiliary resource information, or, in response to the second terminal apparatus being incapable of providing the auxiliary resource information for the first terminal apparatus, sending second indication information to the first terminal apparatus, where the second indication information indicates that the second terminal apparatus is incapable of providing the auxiliary resource information for the first terminal apparatus.