ProSe Message Routing via Server Authorization
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Solution Overview
Problem
Current wireless communication systems lack a defined method for systematic message routing in Device-to-Device (D2D) communication services, hindering the provision of various D2D communication services.
Innovation Solution
A method and apparatus for routing Proximity-based Service (ProSe) messages in a wireless communication system, involving a UE sending an authorization request message to a server with an application ID and UE ID, and receiving a validity time response, enabling direct data exchange between UEs without infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If D2D communication is implemented without network infrastructure, then service availability is improved, but system complexity increases due to lack of centralized routing management
Solution Approach 1:
The patent introduces a server as an intermediary entity that receives authorization requests from UEs, processes routing information, and returns authorization responses with validity times. This mediator approach allows D2D communication to occur without direct network infrastructure while maintaining centralized routing management, thus resolving the contradiction between service availability and routing management complexity.
Solution Approach 2:
The system performs preliminary authorization and routing setup before actual D2D data exchange. The server receives authorization requests in advance, validates them, and provides routing information with validity times. This preliminary action simplifies the actual communication process by pre-resolving routing complexity, allowing UEs to exchange data directly without real-time routing decisions.
2Speed
If direct D2D communication links are established, then real-time information sharing is improved, but security control deteriorates without centralized authorization
Solution Approach 1:
The system performs security authorization in advance before enabling direct D2D communication. The server receives authorization requests containing application IDs and UE IDs, processes security validation, and returns authorization responses with validity times. This preliminary security control ensures that only authorized UEs can establish direct communication links, maintaining security while enabling fast real-time information sharing.
Solution Approach 2:
The server provides feedback in the form of authorization responses that include validity times and routing information. This feedback mechanism allows the system to maintain security control by continuously validating whether ongoing D2D communications are still within their authorized time windows, thus balancing security requirements with real-time communication needs.
3Productivity
If systematic message routing for D2D services is defined, then service provision is improved, but device complexity increases due to additional authorization procedures
Solution Approach 1:
The server performs multiple functions within a single authorization procedure: it validates UE identities, checks application permissions, determines routing information, and establishes validity times. This multi-functional approach consolidates what would otherwise be separate complex procedures into a single unified authorization process, improving service provision efficiency while minimizing the increase in device complexity.
Solution Approach 2:
The server acts as an intermediary that handles all complex authorization and routing logic, shielding UEs from complexity. UEs simply send authorization requests with their IDs and receive comprehensive responses with routing information and validity times. This intermediary approach enables systematic message routing for D2D services while keeping the UE-side implementation relatively simple.
Data Source
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AI summary
A method and apparatus for routing a message for a Proximity-based Service (ProSe) by a User Equipment (UE) in a wireless communication system is provided. The method includes sending, to a server, an authorization request message requesting authorization for ProSe usage by an application installed in the UE, the authorization request message including an application ID (ID) for identifying the application and a UE ID for identifying the UE; and receiving an authorization response message including a validity time for a ProSe of the application from the server in response to the authorization request message.