Proxy Mapping Table for Wireless Registration Management
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Solution Overview
Problem
There is a need for maintaining a proxy mapping table (PMT) in wireless communication systems to manage the registration status of mobile radios and mobile subscriber units (MSUs) within a radio access network (RAN), ensuring accurate communication and service delivery across different network entities.
Innovation Solution
The RAN device maintains a PMT by receiving registration requests from mobile radios and MSUs, determining their registration status, and updating the table accordingly, including adding or removing entries based on service requests and deregistration requests, while ensuring an available air-interface link for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the RAN device maintains a PMT to track registration status of mobile radios and MSUs, then the accuracy of communication routing is improved, but the device complexity and processing overhead increase
Solution Approach 1:
The patent segments the registration management by creating a proxy mapping table that separates MSU registration status tracking from mobile radio registration tracking. The PMT is divided into distinct entries for MSUs and their associated mobile radios, allowing independent management and updating of registration states without affecting the entire system.
Solution Approach 2:
The patent introduces the PMT as an intermediary data structure between the RAN device and the registration management process. This intermediary table acts as a mediator that automatically updates registration status based on received messages, reducing the complexity of direct tracking and providing a centralized mechanism for managing registration information.
2Reliability
If the RAN device updates the PMT for every registration and deregistration event, then the registration status accuracy is maintained, but the processing time and operational overhead increase
Solution Approach 1:
The PMT is designed to automatically update itself based on registration and deregistration messages received from the RAN. When the RAN device receives a registration message, it automatically adds the MSU and associated mobile radio to the PMT with appropriate status flags. Similarly, deregistration messages automatically trigger removal or status updates, eliminating the need for manual intervention or complex update logic.
Solution Approach 2:
The patent establishes preliminary structures in the PMT for MSUs and mobile radios before actual registration occurs. The table is pre-configured with necessary fields and relationships, so that when registration events occur, the updates can be performed directly without requiring complex setup or validation logic at the time of registration.
3Reliability
If the RAN device checks air-interface link availability before communicating service requests, then the communication reliability is improved, but the service delivery time increases
Solution Approach 1:
The patent performs air-interface link availability checks as a preliminary action before the RAN device communicates service requests to MSUs. The system proactively verifies that the air interface is available and the MSU is properly registered before attempting service delivery, preventing failed communication attempts and reducing the need for retry logic that would increase overall delivery time.
Data Source
AI summary
In at least one embodiment, a radio access network (RAN) device maintains a proxy mapping table (PMT) of any mobile radios that are currently registered with the RAN via a mobile subscriber unit (MSU). The PMT indicates, for each mobile radio listed in the PMT, the particular MSU via which that particular mobile radio is registered with the RAN. The RAN device receives a first service request for a first mobile radio that is listed in the PMT as being registered with the RAN via a first MSU and, in response to receiving the first service request, makes a determination that an air-interface link is available for communication between the RAN and the first MSU. In response to making the determination, the RAN device communicates the first service request via the available air-interface link to the first MSU for delivery to the first mobile radio.