Single Cellular Radio Supporting Multiple Phone Lines

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Solution Overview

Problem

Current systems require multiple cellular radios and SIM cards to support multiple phone lines, leading to complexity, radio interference, and high costs due to hardware requirements and installation challenges, especially with remote antenna setups.

Innovation Solution

A system comprising a telephone adapter and a wireless hotspot that enables a single cellular radio to support multiple phone lines by routing voice and data traffic through dedicated bearers with guaranteed and non-guaranteed bitrates, using a processor and memory to manage communications and convert protocols, allowing for remote or co-located configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple cellular radios are installed to support multiple phone lines, then the number of supported phone lines increases, but hardware cost and device complexity increase

Engineering Contradiction:
Improvenumber of supported phone linesVSAvoidhardware configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a single cellular radio that can simultaneously support multiple phone lines through software-based virtualization. The system creates multiple virtual SIM cards and logical channels within one physical radio, allowing it to perform multiple functions (supporting multiple phone lines) without requiring additional hardware radios. This resolves the contradiction by making one device universal enough to replace multiple specialized devices.

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

Solution Approach 2:

The patent combines multiple separate cellular radio functions into a single integrated system. Instead of having separate physical radios for each phone line, the system merges them into one radio with multiple virtual interfaces. The base station communicates with a single radio that internally manages multiple logical connections, thereby reducing hardware complexity while maintaining the capability to support multiple phone lines.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple cellular radios are installed to support multiple phone lines, then the number of supported phone lines increases, but installation difficulty increases

Engineering Contradiction:
Improvenumber of supported phone linesVSAvoidinstallation process
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple radio installations into a single installation. The system requires only one cellular radio to be physically installed and configured, rather than multiple separate installations. The single radio is then logically divided into multiple virtual channels through software configuration, dramatically simplifying the installation process while still supporting multiple phone lines.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If multiple cellular radios are installed to support multiple phone lines, then the number of supported phone lines increases, but cost increases

Engineering Contradiction:
Improvenumber of supported phone linesVSAvoidhardware resources
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent makes a single cellular radio universal by enabling it to handle multiple phone lines through virtualization. The system creates virtual SIM cards and logical channels that allow one physical radio to replace what would traditionally require multiple radios. This reduces the quantity of hardware resources needed while maintaining the same level of service capability.

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

Solution Approach 2:

The patent creates virtual copies of SIM card functionality within a single radio. Instead of requiring physical SIM cards for each phone line, the system generates virtual SIM representations that can be managed software-based. This copying approach allows multiple logical phone lines to exist within one physical device, reducing hardware requirements while maintaining full functionality.

Inventive Principle:
Principle #26Copying

4Quantity of substance

If a single cellular radio supports multiple phone lines, then hardware cost decreases, but radio interference increases

Engineering Contradiction:
Improvehardware resourcesVSAvoidradio interference
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent segments the single radio's resources into multiple isolated virtual channels. Each phone line operates on its own logical channel with dedicated resource allocation, preventing interference between lines. The system divides the radio's processing capabilities, frequency resources, and time slots into separate segments for each virtual SIM, ensuring that traffic from one phone line does not interfere with another.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a virtualization layer as an intermediary between the physical radio and multiple phone lines. This intermediary manages resource allocation, channel assignment, and interference isolation. The virtual SIM card system acts as a mediator that translates multiple logical communication requests into coordinated physical radio transmissions, preventing harmful interference while maintaining support for multiple lines.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10069738B2One cellular radio to support multiple phone lines and data at a location
Publication Date: 2018.09.04 AT&T MOBILITY II LLC
  • US10069738B2 patent drawing
  • US10069738B2 patent drawing
  • US10069738B2 patent drawing

AI summary

A single cellular radio is enabled to support multiple phone lines and data service. The system can be split into two parts: a telephone adapter that receives input from one or more phone lines, and a wireless hot spot communicably coupled to one or more telephone adapters that transmits communications associated with the phone lines and data service to the mobile network. The telephone adapter can include phone jacks, WiFi, and LAN connections and also some traffic management functionality that routes voice traffic to higher class of services than non-voice data. The wireless hotspot can then map communications with higher classes of service to dedicated bearers with guaranteed bitrates, and the lower classes of service to dedicated bearers with non-guaranteed bitrates or even default bearers.