LTE Device Network Switching Based on Caller ID

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Solution Overview

Problem

Electronic devices supporting multi-mode LTE services in a single radio environment experience data service delays or interruptions due to declined data transfer rates when handing over LTE services to 3G networks for voice services.

Innovation Solution

The electronic device employs a method to determine whether to connect calls based on caller identification information, using a reception control list to decide between maintaining LTE network connections or switching to CS service networks, thereby optimizing data service continuity and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the electronic device hands over LTE service to 3G network for voice service, then voice service is provided, but data service delay or interruption occurs due to declined data transfer rate

Engineering Contradiction:
Improvevoice service capabilityVSAvoiddata transfer rate
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The electronic device dynamically switches between LTE and 3G networks based on service type requirements. The radio resource management system actively selects the appropriate network (LTE for data, 3G for voice) rather than using a static configuration, allowing the system to adapt its network connection dynamically to maintain optimal performance for the current service being provided.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the network selection process by service type, separating data service handling from voice service handling. The system divides network usage into distinct pathways: LTE network for data services and 3G network for voice services, allowing each service type to operate on the most suitable network infrastructure independently.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the electronic device accesses CS service network for call, then voice service is provided, but LTE data service is interrupted

Engineering Contradiction:
Improvecall service capabilityVSAvoiddata service continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The radio resource management system acts as an intermediary that coordinates between voice call requirements and data service continuity. It manages the network switching process to minimize disruption to data services, potentially maintaining LTE data connections while establishing 3G voice connections through coordinated resource allocation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If the electronic device uses single radio environment for multi-mode, then device complexity is reduced, but network switching causes service delay

Engineering Contradiction:
Improveradio environment configurationVSAvoidnetwork switching time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The system performs preliminary network assessments and prepares switching parameters in advance before actual network switching is required. By pre-configuring network selection criteria and maintaining readiness states for both LTE and 3G networks, the device minimizes the actual switching time when service transitions are needed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3035752B1Method for providing communication service and electronic device thereof
Publication Date: 2021.06.23 SAMSUNG ELECTRONICS CO LTD
  • EP3035752B1 patent drawingFigure 1
  • EP3035752B1 patent drawingFigure 2
  • EP3035752B1 patent drawingFigure 3

AI summary

An apparatus and a method for providing a Long Term Evolution (LTE) service in an electronic device are provided. A method for operating an electronic device includes connecting to a first network, when being connected to the first network, receiving incoming call information of a second network, obtaining caller identification information of the incoming call information of the second network, and determining whether to connect a call based on the caller identification information.