Sidelink Zone Reference Coordinate Determination
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Solution Overview
Problem
Current wireless communication systems, particularly in the context of 5G New Radio (NR), face challenges in efficiently managing sidelink communications between user equipment (UEs) without a base station, especially in terms of geographic coordination and zone management.
Innovation Solution
A method is introduced where a communications device determines a reference geographic coordinate for multiple sidelink zones, and this coordinate is used to define the boundaries of each sidelink zone via respective sidelink zone identifiers. This information is then transmitted to user equipment (UEs) to facilitate proper sidelink zone operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a standardized reference geographic coordinate system is implemented for sidelink zones, then the accuracy and efficiency of UE positioning and communication is improved, but the complexity of geographic coordination and zone management increases
Solution Approach 1:
The geographic area is divided into multiple sidelink zones, each identified by a unique sidelink zone identifier. This segmentation allows UEs to be positioned and managed in discrete geographic units, improving positioning accuracy while maintaining manageable complexity through structured zone definitions.
Solution Approach 2:
A reference geographic coordinate system serves as an intermediary framework that mediates between the physical geographic environment and the logical sidelink zone identifiers. This intermediary enables accurate UE positioning without requiring direct complex geographic calculations at the UE level.
2Manufacturing precision
If geographic offset information is included in sidelink zone identifiers to define zone boundaries, then the precision of zone boundary definition is improved, but the amount of information that must be transmitted and managed increases
Solution Approach 1:
Geographic offset information is incorporated into sidelink zone identifiers to provide local precision for zone boundary definitions. Each zone identifier contains specific offset data relevant only to that zone's boundaries, enabling precise geographic delimitation without requiring all UEs to process or transmit complete global geographic information.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a communications device (e.g., UE, gNB, LMF, etc.) determines a reference geographic coordinate (e.g., local or global coordinate) for a plurality of sidelink zones, wherein boundaries associated with each sidelink zone are defined via a respective sidelink zone identifier that includes one or more geographic offsets relative to the reference geographic coordinate. A UE receives an indication of the reference geographic coordinate, and performs one or more sidelink zone-related operations based on the reference geographic coordinate.