PMR Network User Identification Module Configuration
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Solution Overview
Problem
Current PMR networks face challenges in managing a large number of unique identifiers for users across multiple geographical areas and categories, making it difficult to implement broadband technologies while adhering to international identification standards like ITU-T E.212.
Innovation Solution
A method for configuring user identification modules in PMR networks that allows operators to segment service areas into geographical sub-areas using a shared operator identifier and user identification number, enabling efficient management and reuse of identifiers across different areas and missions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a unique identifier (IMSI) is assigned to each user in every geographical area according to ITU-T E.212 standard, then user identification compliance is maintained, but the number of required identifiers becomes unmanageably large
Solution Approach 1:
The identifier structure is segmented into multiple components: network identifier (PLMN ID), location area identifier (LAC), and mobile station identifier (MSIN). This segmentation allows the system to maintain unique identification capability while reducing the burden on any single identifier component, enabling scalable management across multiple geographical areas
Solution Approach 2:
The patent introduces a hierarchical dimension to identifier management by organizing identifiers across multiple levels: network level (PLMN), location level (LAC), and user level (MSIN). This multi-dimensional structure replaces the traditional flat unique identifier approach, allowing efficient management through hierarchical decomposition
2Measurement precision
If separate operator identifiers are assigned to each geographical sub-area, then local area identification is improved, but the total number of identifiers increases significantly
Solution Approach 1:
The patent merges the geographical area identification function into the existing LAC component of the IMSI structure, rather than creating separate operator identifiers for each area. This merging approach maintains precise geographical identification while avoiding the proliferation of separate identifier sets
Solution Approach 2:
The LAC component serves multiple functions: it identifies geographical location areas, enables roaming management, and facilitates network selection. This multi-functionality eliminates the need for dedicated identifiers solely for geographical identification, reducing the total number of identifiers required
3Stability of the object's composition
If traditional narrowband identifier systems are used, then current PMR network operations are maintained, but broadband technology implementation is hindered
Solution Approach 1:
The patent introduces dynamic identifier allocation and management capabilities that can adapt to different service types and bandwidth requirements. The hierarchical structure allows flexible reconfiguration for broadband services while maintaining the stable core identification framework needed for ongoing narrowband operations
Data Source
Figure 1
AI summary
The present invention is situated in the telecommunications field and more specifically relates to a method of configuring modules for identifying users of a telecommunication network able to cover a service area cut into a plurality of geographical sub areas, each identification module comprising an identification code stored in said module, said identification code comprising: - an operator identifier; - a user identification number; The method according to the invention comprises a step of assigning a part of the user identification number to said operator, said part (1) being used for purposes other than identification of the user. The invention finds a particularly interesting application in the case of PMR (Professional Mobile Radio) professional radiocommunication networks.