Preconfigured Sidelink Resources for Power Reduction
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Solution Overview
Problem
Wireless communication networks face challenges in reducing power consumption and interference in sidelink communications, particularly for devices like bicycles or mobile phones that are sensitive to power usage, as existing protocols are often suited for vehicles and may lead to increased power consumption and interference in V2V or V2X communications.
Innovation Solution
Configuring user equipment (UE) with preconfigured sidelink resources (PSR) to enable efficient sidelink communications by avoiding certain operations like sensing and grant requests, allowing for direct transmission of data between UEs without the need for continuous base station involvement, thereby reducing power consumption and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If existing vehicle-suited protocols are used for sidelink communications, then communication reliability is maintained, but power consumption increases for mobile devices
Solution Approach 1:
The patent changes the operational parameters of sidelink communication by introducing preconfigured resources with specific time windows and conditions. Instead of continuous monitoring and dynamic scheduling, the system uses predetermined resource allocations that activate only when conditions are met, reducing power consumption while maintaining communication reliability through the configured resource framework.
Solution Approach 2:
The base station performs preliminary configuration of sidelink resources before actual communication occurs. The UE is pre-configured with resource windows, timing information, and activation conditions, allowing the device to remain in low-power state while having communication capabilities ready. This preliminary setup eliminates the need for continuous high-power monitoring and dynamic resource acquisition.
2Object-generated harmful factors
If continuous base station involvement is required for sidelink transmission, then resource allocation is optimized, but interference and network congestion increase
Solution Approach 1:
The patent extracts the resource allocation function from continuous base station control and transfers it to preconfigured UE-side resources. The base station performs initial resource configuration and then steps back, allowing UEs to autonomously utilize preallocated resources without continuous network involvement. This extraction reduces interference from continuous scheduling signals and network congestion from constant resource management overhead.
Solution Approach 2:
The UE performs self-service by autonomously determining when to use preconfigured sidelink resources based on local conditions and priorities. The device independently manages its transmission timing and resource selection within the configured framework, eliminating the need for continuous base station coordination and reducing overall network interference while maintaining efficient resource utilization.
3Productivity
If sensing operations and grant requests are performed continuously, then transmission opportunities are maximized, but power consumption increases
Solution Approach 1:
The patent implements periodic action by configuring UE to monitor and activate sidelink resources only at predetermined time windows rather than continuously. The device performs sensing and grant operations periodically at configured intervals rather than continuously, significantly reducing power consumption while still providing adequate transmission opportunities within the resource windows.
Solution Approach 2:
The base station performs preliminary allocation of transmission opportunities through preconfigured resource windows, eliminating the need for UE to continuously perform sensing and grant requests. The transmission opportunities are predetermined and activated only when conditions are satisfied, reducing the frequency of power-intensive sensing operations while maintaining sufficient transmission chances within the configured framework.
Data Source
AI summary
A user equipment (UE) includes a receiver configured to receive, during operation based on a first mode, a configuration message from a base station. The configuration message indicates sidelink resources associated with a sidelink data channel. The UE further includes a transmitter configured to transmit, based on detecting that one or more conditions associated with the configuration message are satisfied, and during operation based on a second mode, a sidelink message to a second UE via the sidelink data channel during an occasion associated with the sidelink resources.