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 operator identifiers due to the segmentation of service areas into geographical subareas and multiple user categories, making it difficult to implement broadband technologies while adhering to standards like ITU-T E.212.
Innovation Solution
A method of configuring modules for identifying users by assigning operator identifiers to geographical subareas, allowing reuse of identifiers across non-contiguous areas, reducing the number of required identifiers through a reuse rate of at least 3, and using distinct MNC codes for user categories within subareas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a unique operator identifier is assigned to each geographical subarea and user category, then user identification precision is improved, but the number of required identifiers increases significantly
Solution Approach 1:
The operator identifier is segmented into two distinct parts: a common operator identifier that remains constant across multiple geographical subareas, and a location-specific identifier that varies by subarea. This segmentation allows the system to maintain precise user identification while reducing the total number of unique identifiers needed, as the common operator identifier can be reused across non-contiguous subareas.
Solution Approach 2:
The patent introduces a hierarchical dimension to the identification system by combining a high-level operator identifier with a low-level location-specific identifier. This dimensional approach allows identifiers to be reused at the operator level while maintaining uniqueness at the specific subarea level, effectively reducing the overall identifier space required.
2Device complexity
If the number of operator identifiers is reduced through reuse, then device complexity is reduced, but user identification reliability may deteriorate
Solution Approach 1:
By segmenting the identifier into common and location-specific components, the system maintains reliability through the location-specific portion that ensures unique identification in each subarea, while the common operator identifier portion enables reuse and reduces complexity. The segmentation allows both goals to coexist.
Solution Approach 2:
The location-specific identifier acts as an intermediary that bridges the common operator identifier and the specific geographical subarea. This intermediary ensures that even when operator identifiers are reused, users can be reliably identified by combining the common identifier with the location-specific portion.
3Adaptability or versatility
If broadband technologies are implemented in PMR networks, then network capability is improved, but the requirement for standardized identification systems increases complexity
Solution Approach 1:
The common operator identifier serves multiple functions: it identifies the operator across different geographical subareas, enables identifier reuse, and maintains compatibility with existing identification standards. This multi-functionality allows broadband technologies to be implemented without proportionally increasing identification system complexity.
Data Source
Figure 1~2
AI summary
The present invention is situated in the telecommunications field and more specifically relates to a method of configuring modules (1) for identifying users of a telecommunication network able to cover a service area (2) cut into a plurality of geographical sub areas (3), each identification module (1) comprising an identification code stored in said identification module (1), said identification code comprising: - an operator identifier; - a user identification number; said method being characterized in that the method comprises a step of assigning at least one operator identifier to each geographical sub area (3), the operator identifiers of two contiguous geographical sub areas (3) being different and at least two non-contiguous geographical sub areas (3) having an identical operator identifier. The invention finds a particularly interesting application in the case of PMR (Professional Mobile Radio) professional radiocommunication networks.