Multi-SIM Communication Resource Sharing Through Unified Network Interaction

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Solution Overview

Problem

Dual-card or multi-card terminal devices waste resources as each SIM card interacts with the network side independently, leading to inefficiencies and increased power consumption.

Innovation Solution

A communications method where a first network device generates information indicating that a second user can perform target communication behaviors using the configuration or resources of a first user, allowing the second user to share these resources, thereby reducing unnecessary calculations and measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If each SIM card interacts with the network side independently, then each SIM card can maintain its own communication functions, but communication resources are wasted and power consumption increases

Engineering Contradiction:
Improvecommunication function independenceVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent merges the interaction processes of multiple SIM cards by introducing a unified interaction interface that handles communications for all SIM cards through a single protocol stack, eliminating redundant independent interactions with the network side

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The interaction interface is designed with universal functionality to serve multiple SIM cards simultaneously, allowing a single interface to perform the roles that previously required separate dedicated interfaces for each SIM card

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If each SIM card interacts with the network side independently, then each SIM card can maintain its own communication functions, but communication resources are wasted

Engineering Contradiction:
Improvecommunication function independenceVSAvoidresource utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent combines multiple independent interaction processes into a single unified interface, merging redundant resource allocations and improving overall resource utilization efficiency

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The unified interaction interface provides universal service to multiple SIM cards, enabling one interface to perform multiple functions that previously required separate dedicated interfaces, thereby improving resource utilization

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple SIM cards are supported in one terminal device, then the terminal device gains versatility, but the device complexity increases

Engineering Contradiction:
Improvemulti-SIM support capabilityVSAvoidprotocol stack complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The interaction interface is designed with universal functionality to handle communications for multiple SIM cards through a single unified protocol stack, avoiding the need for separate protocol stacks for each SIM card and thereby reducing device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4007440B1Communication methods and devices
Publication Date: 2025.08.06 HUAWEI TECH CO LTD
  • EP4007440B1 patent drawingFigure 1
  • EP4007440B1 patent drawingFigure 2
  • EP4007440B1 patent drawingFigure 3

AI summary

Embodiments of this application provide a communications method and apparatus. The method includes: A first network device generates first information that is used to indicate that a second user performs target communication behavior by using a configuration or resource of a first user, and then sends the first information to a terminal device. The terminal device receives the first information from the first network device through the first user and/or the second user, and determines, based on the first information, that the second user performs the target communication behavior by using the configuration or resource of the first user. Because the second user can perform the target communication behavior by using the configuration or resource of the first user, communication resources can be saved.