User Equipment Interference Sensing for V2V Resource Reservation
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Solution Overview
Problem
Existing V2V communication technologies in wireless networks face challenges in providing guaranteed communication without network assistance, particularly in direct communication modes like PC5 Mode 4, which lacks guarantees and introduces excessive delays due to reliance on local resource reservation and interference management.
Innovation Solution
A user equipment (UE) is configured to establish communication sessions with other UEs by jointly identifying and reserving communication resources based on interference sensing measurements, allowing for guaranteed data exchange without network intervention, using PC5 Mode 4, and facilitating power control to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If PC5 Mode 4 direct communication is used without network assistance, then communication autonomy and speed are improved, but communication reliability and interference management deteriorate
Solution Approach 1:
The patent applies preliminary action by performing interference sensing measurements before resource selection. Each UE measures interference levels on candidate resources in advance, then uses these measurements to select optimal resources for communication, ensuring reliable transmission without network assistance
Solution Approach 2:
The patent implements feedback mechanisms where UEs exchange interference measurement information and communication status. This feedback loop allows UEs to adapt their resource selection and transmission parameters dynamically, maintaining reliability while operating autonomously in PC5 Mode 4
2Adaptability or versatility
If distributed algorithms with sensing are used for resource selection, then network independence is improved, but interference management capability deteriorates
Solution Approach 1:
The patent performs interference sensing measurements as a preliminary action before resource selection. By measuring interference levels on candidate resources in advance, UEs can select resources that minimize interference, enabling network-independent operation while effectively managing interference through distributed sensing
Solution Approach 2:
The patent implements self-service by having each UE autonomously perform interference measurements and resource selection based on local conditions. Each UE serves itself by using its own sensing capabilities to identify optimal resources, eliminating the need for network coordination while maintaining interference awareness
3Ease of operation
If local resource reservation is used for direct communication, then communication autonomy is improved, but communication guarantees deteriorate
Solution Approach 1:
The patent uses feedback mechanisms where UEs exchange interference measurement information and communication status. This feedback loop enables autonomous UEs to make informed resource selection decisions that guarantee communication quality, as each UE knows the actual interference levels and can select resources accordingly
Solution Approach 2:
The patent performs interference sensing as a preliminary action before resource selection. By measuring interference levels in advance on candidate resources, UEs can select resources that guarantee acceptable communication quality, combining autonomy with reliability through informed preliminary measurements
Data Source
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AI summary
The invention relates to a user equipment (101a) for communicating with a further user equipment (101b) of a plurality of user equipments (101a-c) in a wireless communication network (100), wherein the user equipment (101a) is configured to establish together with the further user equipment (101b) a communication session for exchanging data between the user equipment (101a) and the further user equipment (101b) by reserving one or more communication resources for exchanging data between the user equipment (101a) and the further user equipment (101b) during the communication session on the basis of information about one or more interference sensing measurements obtained by the user equipment (101a) and information about one or more further interference sensing measurements obtained by the further user equipment (101b).; Moreover, the invention additionally relates to the power control for the communication between the user equipment (101a) and other user equipment(s) (101b).