Multi-USIM Paging Registration Update for Lower Signaling Overhead
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions for paging multiple USIM cards in a multi-card terminal face issues such as delayed paging, high system cost, privacy concerns, and excessive signaling overheads, particularly when one USIM card is active and another needs to be paged.
Innovation Solution
A method and apparatus that enhance the paging process by allowing a first USIM card to report a registration request message indicating the terminal's capability to support multiple USIM cards, triggering a second already registered card to update its registration, and enabling the network device to adjust paging modes accordingly, reducing the number of registration processes and improving message reception success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional paging methods are used for multiple USIM cards, then each card requires separate registration processes, but this leads to excessive signaling overheads and delayed paging
Solution Approach 1:
The patent merges the registration processes of multiple USIM cards into a single unified registration procedure. The terminal device performs one registration process that covers all USIM cards, and the network device establishes a unified paging connection accordingly. This eliminates the need for separate registration processes for each card, reducing signaling overhead and avoiding paging delays while ensuring reliable message reception for all cards.
2Adaptability or versatility
If separate registration processes are performed for each USIM card, then each card can be independently managed, but this increases system cost and signaling overheads
Solution Approach 1:
The patent implements a universal registration mechanism where a single registration process serves multiple USIM cards simultaneously. The terminal device indicates its multi-USIM capability to the network device, which then establishes a unified paging connection that can handle paging messages for all cards. This multi-functional approach maintains the ability to manage each card independently while eliminating redundant signaling overheads and reducing system resource consumption.
3Adaptability or versatility
If multiple USIM cards are supported in the same terminal, then service diversity is improved, but privacy concerns arise when one card is active and another needs to be paged
Solution Approach 1:
The patent introduces a unified paging connection as an intermediary mechanism between the network and multiple USIM cards. Instead of establishing direct separate connections for each card (which could expose privacy), the network device uses a single paging connection that indirectly manages all cards. The terminal device acts as an intermediary that receives paging messages through this unified connection and routes them to the appropriate cards, thereby protecting user privacy while maintaining service diversity.
Data Source
AI summary
A paging method, comprising: determining that a paging enhancement condition is met by a first universal subscriber identity (USIM) card, said first USIM card reporting a first registration request message carrying first status information to a first network device: said first status information is used for indicating that the status corresponding to a target terminal capability of a multi-card terminal is a first status, said target terminal capability being used for indicating the capability of said multi-card terminal to support a plurality of USIM cards, said first status being used for indicating the existence of a plurality of USIM cards in a successfully registered status; and determining that the status corresponding to said target terminal capability is said first status, triggering a second USIM card, which is already in said successful registration status, to perform a registration update process.