Mobile Device Location Engine Using Base Transceiver Station Signal Amplitude

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Solution Overview

Problem

Existing methods for determining a mobile device's location are inefficient, requiring significant time and resources, and may not function indoors or when the GPS sensor is not active, making it difficult for content providers to deliver location-based customized content in a timely manner.

Innovation Solution

A mobile device with a location engine that determines its location by identifying nearby base transceiver stations (BTSs) based on signal amplitude and provides this location in communication headers, allowing content providers to quickly deliver location-based content without draining battery life or consuming network resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If GPS sensor is used for location determination, then location accuracy is improved, but energy consumption increases and device must be outdoors

Engineering Contradiction:
Improvelocation accuracyVSAvoidbattery life
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent uses Base Transceiver Stations (BTS) as intermediary infrastructure to enable location determination. Instead of relying directly on GPS satellites, the system uses cellular network BTSs as mediators that provide location information through signal amplitude measurements, allowing indoor location determination without requiring GPS visibility or high energy consumption

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical/optical GPS satellite-based system with a wireless communication-based system using BTS signal amplitude measurements. This substitution enables location determination through radio signal analysis rather than requiring line-of-sight to satellites, thereby working indoors and consuming less battery power

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If existing location determination methods are used, then location data can be obtained, but time consumption is high and network resources are excessive

Engineering Contradiction:
Improvelocation data availabilityVSAvoidtime for location determination
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The mobile device performs location determination autonomously using its own onboard BTS signal amplitude measurement capabilities and stored BTS location data. The device independently calculates its position based on signal strengths from multiple nearby BTSs without requiring server-based processing or extensive network resource allocation, thereby reducing time consumption

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-stores BTS location data in the mobile device before location determination is needed. By having the BTS location information already cached in the device's memory, the system eliminates the need for real-time network queries and can immediately perform location calculations when required, significantly reducing response time

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If location determination is performed frequently, then content customization is improved, but device resources and network bandwidth are consumed

Engineering Contradiction:
Improvecontent customization capabilityVSAvoiddevice resource consumption
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements location determination only when necessary (partial action) rather than continuously, by triggering location calculations based on event detection such as application launches, GPS status changes, or user actions. This selective approach provides sufficient content customization capability while avoiding unnecessary resource consumption and device complexity

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS8369871B1System and method for mobile device self-location
Publication Date: 2013.02.05 T MOBILE INNOVATIONS LLC
  • US8369871B1 patent drawing
  • US8369871B1 patent drawing
  • US8369871B1 patent drawing

AI summary

A system is provided for mobile client-side location determination. The system includes a mobile device, which includes base transceiver station location data, a memory, a processor, and a location engine stored in the memory. When executed by the processor, the location engine receives information that identifies multiple base transceiver stations in response to the mobile device registering with a communication network. The location engine also reads a location for each of the base transceiver stations from the base transceiver station location data and calculates a location of the mobile device based on the location of each of the base transceiver stations. Additionally, the location engine provides the location of the mobile device in a defined portion of a communication transmitted by the mobile device.