Home Near Field Communication Server D2D Authorization via PLMN List Intersection
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Solution Overview
Problem
The existing D2D service authorization process is challenging due to the difficulty in operating the home near field communication server with a local PLMN list and the inability of terminals to communicate with local or visited near field communication servers, leading to incomplete service authorization.
Innovation Solution
A method where the home near field communication server determines and sends an authorized PLMN list to the user equipment, obtained by overlapping local and conditional authorization PLMN lists, without requiring direct communication with local or visited near field communication servers, using static configuration or requests to visited near field communication servers for local PLMN lists.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the home near field communication server uses local PLMN list configuration for D2D service authorization, then the authorization accuracy is improved, but the operational complexity increases significantly
Solution Approach 1:
The patent introduces a visited near field communication server as an intermediary between the home near field communication server and the local network. The visited server obtains the local PLMN list and forwards it to the home server, eliminating the need for direct configuration at the home server while maintaining authorization accuracy. This mediator approach resolves the contradiction by decoupling the authorization logic from the configuration burden.
2Speed
If terminals directly communicate with local or visited near field communication servers, then the communication efficiency is improved, but the communication reliability deteriorates due to connectivity issues
Solution Approach 1:
The home near field communication server acts as a centralized intermediary that all terminals communicate with. It obtains the local PLMN list from the visited server and performs authorization centrally. This eliminates direct terminal-to-local-server communication, ensuring reliable connectivity through the home server while maintaining efficient authorization through the centralized architecture.
3Adaptability or versatility
If the home near field communication server obtains local PLMN list through visited near field communication server, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the local PLMN list configuration from the home near field communication server and places it in the visited near field communication server. The home server only needs to request and process the list, while the visited server handles the actual configuration and management. This extraction reduces the complexity burden on the home server while maintaining network adaptability through the visited server's local knowledge.
Data Source
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AI summary
The present invention provides a Device to Device (D2D) service authorization method and apparatus and a home near field communication server. The above method includes: a home near field communication server obtaining a local PLMN list of a location in which a user equipment is currently located and a first PLMN list that a permission of authorization to the user equipment is a condition authorization; performing intersection processing on the local PLMN list and the first PLMN list to obtain a second PLMN list; generating an authorized PLMN list according to PLMNs permitting a D2D authorization to the user equipment in the second PLMN list; and the home near field communication server sending the authorized PLMN list to the user equipment. The above technical solution provided by the present invention can obtain the local PLMN network list without configuring the home near field communication server, and can obtain the authorized PLMN list without communication between the UE and the local or visited near field communication server.