Home Gateway IMS Registration Simplification
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Solution Overview
Problem
Current multimedia devices in local networks are often not IMS-enabled or MMTel compliant, making it difficult to provide multimedia services and requiring complex and costly Home IMS Gateways (HIGA) to handle authentication and protocol translation, which can be cumbersome for users and expensive to implement.
Innovation Solution
A method and arrangement in a home gateway that registers local devices with an external multimedia services network using preconfigured public identities, allowing incoming calls and sessions to be directed to specific devices without the need for dedicated IMS identities, simplifying the gateway's functionality and reducing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a Home IMS Gateway (HIGA) is implemented to enable non-IMS devices to access IMS networks, then multimedia service access is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the IMS identity management functionality from the HIGA and relocates it to the terminal device itself through the ISIM application. This allows non-IMS devices to gain IMS capabilities without requiring a complex HIGA, as each device independently handles its own authentication and service access.
Solution Approach 2:
The terminal device is empowered to self-register with the IMS network using the ISIM application stored on the device. The device autonomously performs authentication, service profile retrieval, and registration procedures without requiring manual configuration or complex gateway mediation, thereby simplifying the overall system architecture.
2Ease of operation
If dedicated IMS identities are assigned to each local device, then service directionality is improved, but device complexity and cost increase
Solution Approach 1:
The ISIM application serves multiple functions within a single component: it stores the IMS private identity for authentication, contains the service profile with public identities for service access, and enables both authentication and service registration capabilities. This multi-functional approach eliminates the need for separate identity management systems for each device.
Solution Approach 2:
The ISIM application is pre-configured with the IMS private identity and service profile before the device connects to the IMS network. This preliminary configuration includes all necessary authentication credentials and service access information, allowing the device to immediately self-register without requiring complex runtime identity management or gateway intervention.
Data Source
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Figure 3~4a
Figure 4b~4c
AI summary
Method and arrangement in a home gateway (202) of a local network (200) for providing registration inan external multimedia services network (IMS) for one or more local devices present in the local network.When a local registration request is received (2:2) from a first local device (A), a mapping or association of a corresponding identification of the first local device to a first public identity which is valid in the multimedia services network, is stored (2:3)in the home gateway. The first public identity is then registered (2:4) together with the identification of the first local device in the multimedia services network for the first local device. Any incoming call or session request referring to the first public identity will be directed by the multimedia services network to the first local device.Thereby, the home gateway can be made less complex.