Multi-SIM Paging Response Using Paging Cause Information

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Solution Overview

Problem

There is no unified standard for processing methods in multi-card terminals, leading to inefficiencies in managing and communicating SIM card information between terminals and network-side devices, particularly in dual-card or multi-card scenarios.

Innovation Solution

A method and apparatus for reporting SIM card information to network-side devices, including determining whether to perform a paging response based on paging cause information, and adding paging cause information to paging messages, to optimize SIM card management in multi-card terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If multi-card terminals use manufacturer-specific implementations without unified standards, then device complexity is reduced for individual manufacturers, but interoperability and network resource efficiency deteriorate

Engineering Contradiction:
Improveimplementation flexibilityVSAvoidnetwork resource efficiency
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces standardized parameters including SIM card information (operator ID, SIM card number), paging cause information (mobile station initiated, mobile switched network initiated, network initiated), and availability information (first availability, second availability). These standardized parameters enable consistent information exchange across different manufacturers while maintaining network resource efficiency through unified handling procedures.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent segments the paging response decision process into distinct components: receiving SIM card information, determining paging cause, checking availability information, and making targeted paging responses. This segmentation allows the system to handle multi-card scenarios systematically while maintaining efficiency through standardized decision-making steps.

Inventive Principle:
Principle #1Segmentation

2Loss of energy

If paging messages are sent without paging cause information, then signaling resource usage is reduced, but service management precision deteriorates

Engineering Contradiction:
Improvesignaling resource usageVSAvoidservice management precision
Core Design Contradiction:
Loss of energyVSLoss of information

Solution Approach 1:

The patent applies partial action by selectively including paging cause information only when necessary for proper service management. The system determines whether to include paging cause information based on the specific scenario, avoiding unnecessary signaling overhead while ensuring precision is maintained when needed. This is evident in the conditional inclusion of paging cause information in paging messages.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If multi-card terminals always respond to all paging messages, then service availability is improved, but signaling resource waste increases

Engineering Contradiction:
Improveservice availabilityVSAvoidsignaling resource waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements feedback mechanisms where the terminal checks availability information (first availability and second availability) before responding to paging messages. This feedback loop allows the terminal to make informed decisions about whether to respond, ensuring service availability is maintained only when appropriate while avoiding unnecessary signaling resource consumption. The network also receives feedback about terminal responses to optimize future paging strategies.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12526769B2Reporting SIM card information in a network
Publication Date: 2026.01.13 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12526769B2 patent drawing
  • US12526769B2 patent drawing
  • US12526769B2 patent drawing

AI summary

An information reporting method, comprises: reporting SIM card information corresponding to a plurality of SIM cards to a network side device; receiving a first paging message sent by the network side device, where the first paging message is a paging message for paging a first SIM card in an idle state from among the plurality of SIM cards; and in response to determining that the first paging message carries paging reason information, determining, according to the paging reason information, whether to perform paging response.