Electronic Device Dialing via Historical SIM Selection

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Solution Overview

Problem

Existing dialing methods through third-party devices often fail when using default or most recently used SIM cards, especially if they are invalid or IoT cards, leading to high probability of dialing failure.

Innovation Solution

An electronic device determines and uses a first subscriber identity module card based on its historically successful call card selection status to receive and process dialing requests from a target device, improving the probability of successful calls.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the electronic device uses the default SIM card or most recently used SIM card for dialing, then the dialing operation is simple and fast, but the dialing reliability deteriorates when the selected card is invalid or an IoT card

Engineering Contradiction:
Improvedialing reliabilityVSAvoidcard selection complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The electronic device automatically determines which SIM card to use for dialing based on pre-stored successful call records, without requiring user intervention. The system self-selects the appropriate card by querying historical call data and identifying cards with successful call records, thereby resolving the contradiction between reliability and complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-stores and queries historical call records before the actual dialing operation. By preliminarily determining which SIM cards have successful call records and storing this information, the system ensures reliable card selection without adding complexity to the user's interaction during the dialing process.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the electronic device queries historical call records to determine the card with successful calls, then the dialing reliability is improved, but the time consumption increases

Engineering Contradiction:
Improvedialing reliabilityVSAvoidtime consumption
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs the query for historical call records in advance, before the user initiates a dialing operation. By pre-determining which SIM cards have successful call records and storing this information, the system minimizes time consumption during actual dialing while maintaining high reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from historical call records to determine the appropriate SIM card for current dialing operations. By analyzing past successful calls and using this feedback information, the system achieves reliable card selection without requiring real-time complex queries during the dialing process.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20240397304A1Dialing method and apparatus, and electronic device
Publication Date: 2024.11.28 VIVO MOBILE COMM CO LTD
  • US20240397304A1 patent drawing
  • US20240397304A1 patent drawing

AI summary

This application discloses a dialing method and apparatus, and an electronic device. The dialing method includes: receiving, when a target device is connected to an electronic device, dialing request information sent by the target device, where the dialing request information is used for requesting the electronic device to dial; determining a first subscriber identity module card in the electronic device based on a historically successful call card selection status of the electronic device; and using the first subscriber identity module card to dial.