UE Sidelink Relay Timer Control for Selective Activation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing relay functionality in user equipment (UE) to optimize communication capacity and reliability, particularly in scenarios like vehicle-to-everything (V2X) communication, where multiple UEs need to dynamically enable relay capabilities based on specific conditions.
Innovation Solution
A method and apparatus for UE to enable relay functionality upon receiving a request, involving configuring a timer and enabling relay functionality based on timer expiration, with the ability to release the timer upon receiving a broadcast message, and considering factors like UE power, distance, and load to prevent unnecessary relay operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If relay functionality is enabled in UE to enhance communication capacity and reliability, then communication reliability is improved, but unnecessary relay activation occurs leading to resource wastage
Solution Approach 1:
The patent changes the parameter of relay activation timing by introducing a timer mechanism. Instead of immediate activation upon receiving a relay request, the UE waits for a predetermined time period before enabling relay functionality. This parameter change allows the system to filter out transient or unnecessary relay requests, reducing resource wastage while maintaining communication reliability for legitimate requests.
Solution Approach 2:
The patent applies preliminary action by configuring a timer before actually enabling relay functionality. This preliminary waiting period allows the system to assess whether the relay request is genuine and necessary before committing resources to relay operations, thereby preventing unnecessary activation while ensuring reliable communication when needed.
2Speed
If relay functionality is enabled immediately upon receiving request, then response time is improved, but communication efficiency deteriorates due to unnecessary relay operations
Solution Approach 1:
The patent optimizes the balance between response time and communication efficiency by adjusting the timer duration parameter. The predetermined time is set to be sufficient to filter unnecessary requests but short enough to maintain acceptable response time for legitimate relay needs, thus improving overall communication efficiency without sacrificing essential response speed.
3Quantity of substance
If multiple UEs enable relay functionality simultaneously, then communication capacity is improved, but network load increases causing resource wastage
Solution Approach 1:
The patent controls the quantity of active relay UEs by introducing a time parameter. The predetermined timer duration naturally limits the number of UEs that can simultaneously enable relay functionality, as only UEs whose requests survive the timer period will activate. This parameter-based control increases communication capacity through multiple relays when needed while preventing excessive network load from simultaneous activations.
Data Source
AI summary
An embodiment relates to an operating method of a UE related to a sidelink relay in a wireless communication system, the operating method comprising: receiving, by the UE, a relay functionality enable-related request message; setting, by the UE, a timer; and enabling, by the UE, relay functionality on the basis of expiration of the timer, wherein the timer is released on the basis of receiving a broadcast message notifying relay functionality enable.