Proximity Service Routing in Non-Terrestrial Wireless Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face challenges in non-terrestrial networks due to higher latency and round-trip time, which affect the accuracy and usability of proximity services, especially when communications are routed through a core network or application server, and vary in capabilities among different network nodes.
Innovation Solution
A method where a source UE transmits a communication associated with a proximity service, including an indication that enables network nodes to perform local routing, excluding the core network or application server, thereby reducing latency and improving service accuracy by using specific indications such as packet types or resource allocations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communications are routed through core network or application server, then network control and management are improved, but latency and round-trip time increase
Solution Approach 1:
The patent segments the communication routing into two paths: proximal communications are routed locally through the RAN node, while non-proximal communications continue to use core network routing. This segmentation allows latency-sensitive proximity services to bypass the core network path, reducing round-trip time while maintaining core network control for other services.
Solution Approach 2:
The RAN node acts as an intermediary that receives indication information about proximity services and uses this to make intelligent routing decisions. The intermediary function allows the system to balance between core network control and low-latency local routing by mediating the communication path based on service type.
2Loss of time
If local routing is implemented for proximity services, then latency is reduced and service accuracy is improved, but network complexity increases
Solution Approach 1:
The system performs preliminary action by configuring indication information in advance that identifies which communications are proximity services. This pre-configuration allows RAN nodes to automatically recognize and route proximity communications locally without complex real-time analysis, reducing routing complexity while maintaining low latency.
Solution Approach 2:
The patent changes the routing parameter based on the indication information. When the indication signifies a proximity service, the routing parameter switches to local RAN path; otherwise, it uses the standard core network path. This parameter-based approach simplifies the routing logic compared to complex decision algorithms.
3Measurement precision
If indication information is transmitted for each communication, then local routing accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by transmitting indication information selectively - only for communications that are proximity services. Non-proximity communications continue to use standard routing without additional indication overhead. This partial application of indication signaling reduces overall signaling overhead while maintaining routing accuracy for proximity services.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, a communication associated with an indication that the communication is associated with a proximity service. The UE may communicate based at least in part on the proximity service. Numerous other aspects are described.