ProSe Relay Selection Policy for Congestion Management
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing ProSe relay selection, particularly in congested areas, where conventional systems cannot guarantee that the selected ProSe relay is outside the congested area, leading to potential performance issues.
Innovation Solution
The proposed solution involves extending the User Data Route Selection Policy (URSP) with a ProSe Relay offload indication, allowing the network to restrict ProSe indirect communication through relay nodes in congested areas and enable it through nodes in non-congested areas, thereby prioritizing relay selection based on network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If ProSe indirect communication is allowed through any relay node, then communication coverage is extended, but network congestion in certain areas worsens
Solution Approach 1:
The patent applies local quality by differentiating relay selection policies based on geographic location. The network provides location-specific route selection policies that restrict ProSe indirect communication in congested areas while allowing it in non-congested areas. This enables the system to maintain extended coverage overall while locally managing congestion through differentiated relay selection criteria.
2Reliability
If relay selection is restricted to non-congested areas, then network performance is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling User Equipment to autonomously select appropriate relay nodes based on location-specific route selection policies provided by the network. The UE independently evaluates potential relay nodes against the policies, which encode congestion status and selection criteria, thereby achieving reliable congestion-aware relay selection without requiring complex centralized control or additional network infrastructure.
Data Source
AI summary
A method, system and apparatus are disclosed. A core network node configured to communicate with a first wireless device (WD) is described. The first WD is configurable to indirectly communicate with one or both of the core network node and a network node at least via at least one other WD. The at least one other WD is configured to perform relay communication. The core network node includes processing circuitry configured to determine that a first coverage area meets a predefined criterion and cause transmission to the first WD of a first indication. The first indication is based on the first coverage area meeting the predefined criterion for restricting any other WD associated with the first coverage area from being used by the first WD to indirectly communicate with one or both of the core network node and the network node.