Sidelink Paging With Configured Sensing And Selection Windows
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Solution Overview
Problem
In sidelink communication systems, collisions occur when paging messages and wake-up signals are transmitted in preconfigured resources without considering the current occupancy state, leading to deteriorated energy efficiency and reception performance.
Innovation Solution
A method for transmitting a paging message involves independently configuring resource sensing and selection windows, allowing for the detection and selection of candidate resources within these windows, with the option to early terminate or reconfigure these windows based on conditions such as transmission data size, latency, and priority, thereby preventing collisions and improving resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If paging messages are transmitted in preconfigured sidelink resources without considering current resource occupancy state, then transmission simplicity is maintained, but transmission collisions occur and reception performance deteriorates
Solution Approach 1:
The patent applies preliminary action by having the terminal perform resource sensing in advance before transmitting the paging message. The terminal senses available resources within a sensing window and selects an appropriate transmission resource based on current occupancy state, thereby avoiding collisions while maintaining procedural simplicity.
Solution Approach 2:
The patent implements dynamics by enabling the terminal to adaptively select transmission resources based on real-time resource occupancy state. The resource selection process dynamically adjusts according to current channel conditions, transitioning from static preconfigured resources to dynamic resource allocation that avoids collisions.
2Reliability
If resource sensing and selection windows are independently configured and resource selection is performed dynamically, then transmission collision prevention is achieved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the resource management process into distinct windows: a sensing window for detecting available resources and a selection window for choosing the optimal transmission resource. This segmentation organizes the complex task into manageable phases, reducing processing burden while maintaining collision avoidance.
Solution Approach 2:
The patent uses preliminary action by completing resource sensing before the actual transmission decision. The sensing window operates in advance to gather information about resource occupancy, allowing the selection window to make informed decisions without requiring complex real-time analysis during transmission moments.
3Measurement precision
If resource sensing operation is performed within a configured sensing window, then accurate resource detection is achieved, but time consumption increases
Solution Approach 1:
The patent applies partial action by configuring the sensing window to cover only the necessary time period for accurate resource detection, rather than performing exhaustive sensing. The window duration is optimized to balance detection accuracy with time consumption, sensing just enough to make reliable transmission decisions.
Solution Approach 2:
The patent implements preliminary action by concentrating the resource sensing operation within a defined sensing window that precedes the transmission decision. This time-bound preliminary sensing ensures accurate resource detection while limiting the time consumption to only the necessary sensing period, not the entire transmission cycle.
Data Source
AI summary
A method for paging in sidelink communication includes the steps of: receiving configuration information of a resource sensing/selection window from a base station; determining P candidate resources by performing a resource sensing operation in a P resource sensing window indicated by the configuration information; selecting a P transmission resource from among the P candidate resources in a P resource selection window indicated by the configuration information; and transmitting a paging message to a receiving terminal by using the P transmission resource.