USI Invocation Using Dual User IDs for Offline Service Initiation
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Solution Overview
Problem
Existing WiMAX network protocols face limitations in allowing applications to actively initiate Universal Service Interface (USI) services, as the conventional USI identity is temporary and changes over time, and is not applicable when the user is offline.
Innovation Solution
A method and device that utilize a combination of long-lived and short-lived user IDs, where the application initiates a service request using a long-lived ID if no short-lived ID exists, and receives a short-lived ID from the USI system, allowing for secure and offline USI service initiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conventional temporary USI identity ID is used, then the user identity can be updated when the user accesses/exits the network, but the application cannot actively initiate a USI service request
Solution Approach 1:
The identity system is segmented into two distinct types: long-lived user ID for stable identification and short-lived user ID for temporary session management. This segmentation allows the application to use the long-lived ID for active service initiation while the short-lived ID handles dynamic session requirements, resolving the contradiction between service initiation capability and identity stability.
Solution Approach 2:
The long-lived user ID is pre-configured and stored in the application before any USI service is needed. This preliminary setup enables the application to actively initiate service requests at any time without waiting for the user to be online, as the stable identification is already in place.
2Ease of operation
If the USI identity ID is assigned only when the user is online, then the identity is always valid for current sessions, but the application cannot initiate USI service when the user is offline
Solution Approach 1:
The long-lived user ID is obtained and stored in advance, before the user needs to be online. This preliminary acquisition of identification allows the application to initiate USI service requests even when the user is offline, eliminating the time loss associated with waiting for user availability.
Solution Approach 2:
The long-lived user ID acts as an intermediary that bridges the gap between offline application service initiation and online user identity verification. It enables the application to send service requests without requiring the user to be currently online, while still allowing the USI system to eventually match the request with the appropriate user identity.
3Adaptability or versatility
If the long-lived user ID is used for active service initiation, then the application can initiate services at any time, but an additional identity management mechanism is required
Solution Approach 1:
The identity management system is segmented into long-lived ID for service initiation and short-lived ID for session execution. This clear division of responsibilities simplifies the overall complexity by giving each ID type a specific function, making the dual-identity system more manageable than a single complex identity system would be.
Data Source
AI summary
In the field of communication technology, a method for invoking a Universal Service Interface (USI) and a USI system are provided. The schemes provide a user with a short-lived user ID for the application to interact with the USI system. The short-lived ID has a corresponding relation with the long-lived user ID and can be found according to the long-lived user ID regardless of whether the user is online or offline. The method and device can effectively ensure the security of USI invocation, and ensure that the application can initiate the USI service request even when the user is in an offline state.