Sidelink Resource Management via Geographic Zone Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Managing data transmission resources in wireless communication networks, particularly sidelink data transmissions, is challenging due to the complexity of coordinating resources among numerous user equipment (UEs) in close proximity, which is essential for applications like connected car services and autonomous vehicles, where interruptions in communication need to be minimized.
Innovation Solution
A method where UEs autonomously select and reserve data transmission resources by performing control transmissions, dividing geographic areas into zones with specific resource pools, allowing consistent resource usage across zones, and prioritizing resources based on priority levels and usage patterns, thereby reducing communication interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs autonomously select resources for sidelink data transmissions, then resource management complexity is reduced and communication efficiency is improved, but resource coordination among numerous UEs in the same communication region becomes challenging and may lead to interference
Solution Approach 1:
The communication region is divided into multiple resource pools, each associated with specific geographic zones. UEs autonomously select resources from appropriate pools based on their location and transmission requirements, enabling decentralized resource management while reducing interference through spatial segmentation.
Solution Approach 2:
Different resource pools are configured with different properties and characteristics suited for specific geographic zones. UEs in different locations access different resource pools, allowing local optimization of resource allocation and reducing coordination complexity by limiting the scope of resource selection to local zones.
2Adaptability or versatility
If UEs frequently switch resources when moving between geographic zones, then resource allocation adapts to current location, but communication interruptions increase and transmission reliability decreases
Solution Approach 1:
Multiple resource pools are pre-configured and associated with different geographic zones before UEs begin transmission. When UEs move between zones, they can switch to pre-configured resources in the new zone's resource pool, reducing interruption time and maintaining communication reliability through advance preparation.
Solution Approach 2:
The system dynamically allows UEs to switch between different resource pools based on their current geographic zone and transmission requirements. This dynamic resource selection enables UEs to adapt to location changes while maintaining continuous communication by selecting from available resources in the current zone.
3Productivity
If the same data transmission resource is used across multiple geographic zones, then resource utilization efficiency is improved and resource switching is reduced, but interference may occur when different UEs in different zones use the same resource simultaneously
Solution Approach 1:
The system segments resources into multiple pools, each associated with specific geographic zones. While the same resource identifier may exist across multiple pools, actual transmissions are separated by geographic zone, allowing resource reuse across zones without causing interference between different UEs in different locations.
Solution Approach 2:
Geographic zone information acts as an intermediary parameter that distinguishes between transmissions using the same resource identifier in different zones. This allows the system to reuse resources across zones while preventing interference by ensuring that transmissions in different zones do not occur simultaneously on the same physical channel.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An apparatus receives an indication of a set of geographic zones and a set of control transmission wireless resource units. For each one of the geographic zones, corresponding control transmission wireless resource unit are specified for use while in that the geographic zone. While in a first zone of the geographic zones, a control transmission is transmitted, reserving a first data transmission wireless resource unit for use by the apparatus for sidelink (SL) data communication. The control transmission is performed using control transmission wireless resource units corresponding to the first zone. The data transmission wireless resource unit is selected from a pool of data transmission wireless resource units and each member of the pool of data transmission wireless resource units is available for use across a set of geographic zones. Different members of the pool of data transmission wireless resource units are concurrently.