Access and Mobility Management Node Relay Path Activation
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Solution Overview
Problem
Current wireless communication technologies face challenges in establishing and managing simultaneous direct and indirect communication paths for user equipment (UE) in ProSe scenarios, which affects communication reliability.
Innovation Solution
The method involves a wireless communication method where an access and mobility management node receives relay information from a radio access node and transmits it to a session management node to activate Protocol Data Unit (PDU) sessions over a relay path, allowing for the establishment of multi-access PDU sessions using both direct and indirect communication paths without releasing existing configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If simultaneous direct and indirect communication paths are established for UE in ProSe scenarios, then communication reliability is improved, but connection establishment and management complexity increases
Solution Approach 1:
The patent segments the connection management process into distinct phases: direct path establishment, indirect path establishment via relay node, and coordinated management of both paths. The access and mobility management node separately handles direct and indirect path configurations, allowing independent optimization of each path while maintaining overall system reliability.
Solution Approach 2:
The access and mobility management node acts as an intermediary that coordinates between the direct communication path and the indirect relay path. It receives relay information from the radio access node and manages the activation of PDU sessions over the relay path, thereby simplifying the overall management complexity by centralizing control functions.
2Adaptability or versatility
If relay path is added for indirect communication, then network connectivity is improved, but signaling overhead and management procedures increase
Solution Approach 1:
The access and mobility management node is designed with multi-functionality to handle both direct and indirect communication paths through a unified interface. It can process relay information and activate PDU sessions over relay paths using the same signaling mechanisms already established for direct paths, thereby reducing the need for separate specialized procedures.
Solution Approach 2:
The system performs preliminary actions by pre-establishing the relay information exchange mechanisms and PDU session activation procedures before actual relay communication is needed. The access and mobility management node is pre-configured to receive relay information from radio access nodes and activate PDU sessions over relay paths, reducing the complexity of real-time relay path management.
3Stability of the object's composition
If existing configurations are maintained while activating relay path sessions, then service continuity is improved, but resource management complexity increases
Solution Approach 1:
The patent implements dynamic resource management where the access and mobility management node can flexibly activate PDU sessions over relay paths while maintaining existing direct path configurations. The system dynamically allocates resources to both direct and indirect paths based on current communication needs, allowing seamless switching and coordination between paths without requiring complete reconfiguration.
Data Source
AI summary
Method, device and computer program product for wireless communication are provided. A method includes: receiving, by an access and mobility management node from a radio access node, a first request message with relay information; and transmitting, by the access and mobility management node to a session management node, a second request message with the relay information to allow the session management node to activate one or more Protocol Data Unit, PDU, sessions over a relay path.