Multi-Card Terminal Notifications for Network Switching

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Solution Overview

Problem

Existing multi-card terminals waste network resources when switching between different networks due to inefficient handling of network connections and paging.

Innovation Solution

Implementing a message notification method in multi-card terminals to send leaving or return messages to networks, indicating temporary suspension or resumption of connections, using timers to control notification frequency and reduce signaling overload.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If multi-card terminal performs switching between different networks directly without notification, then switching speed is improved, but network resource waste increases due to continued scheduling and paging

Engineering Contradiction:

Improvenetwork switching speedVSAvoidnetwork resource waste

Core Design Contradiction:

SpeedVSLoss of energy

Solution Approach 1:

The terminal sends a leaving message to the first network before actually leaving it, and sends a return message before returning. This preliminary notification allows the network to stop scheduling and paging in advance, avoiding resource waste while maintaining fast switching performance.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The network receives feedback messages (leaving message and return message) from the terminal that indicate the terminal's network status. Based on this feedback, the network adjusts its scheduling and paging behavior accordingly, stopping resources allocation when the terminal leaves and resuming when it returns, thereby eliminating resource waste.

Inventive Principle:

Principle #23Feedback

2Loss of energy

If multi-card terminal sends notification messages frequently during network switching, then network resource optimization is improved, but signaling overload occurs

Engineering Contradiction:

Improvenetwork resource optimizationVSAvoidsignaling load

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent extracts only the essential notification events (leaving the network and returning to the network) from the continuous network switching process. By sending messages only at these critical transition points rather than continuously, the solution optimizes network resources without generating excessive signaling overhead.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The notification messages are sent periodically at specific events (when leaving and when returning to the network) rather than continuously. This event-driven periodic action ensures network resource optimization is achieved at key moments without creating constant signaling traffic that would lead to overload.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentEP4096296B1Message notification method, terminal, and network device

Publication Date: 2025.11.05 VIVO MOBILE COMM CO LTD

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AI summary

Embodiments of the present invention provide a message notification method, a terminal, and a network device. The message notification method includes: determining whether a first condition is met; and sending a notification message to a first network when the first condition is met, or skipping sending a notification message to a first network when the first condition is not met. The first condition includes any one of the following: a notification message reporting condition; and a first timer expires or is not running, where the first timer is used to prohibit a terminal from sending the notification message.