Repeater Chain Location Determination via Base Station Identifier

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Solution Overview

Problem

Current methods for determining accurate mobile device positions using GPS assistance data fail when the device is attached to a repeater chain, as the time delays reported by the mobile device are impacted by the repeater chain, leading to inaccurate initial position estimations and inability to locate satellites within a set time period.

Innovation Solution

A wireless communication network system that includes a donor base station and a repeater chain, where the location controller stores the repeater chain base station ID associated with the repeater chain location, allowing the translation and transfer of this ID to determine the repeater chain location, enabling accurate position estimation of mobile devices attached to repeaters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If GPS assistance data is generated based on donor base station location and time delays, then location estimation can be provided, but the initial position estimation becomes inaccurate when the mobile device is attached to a repeater chain

Engineering Contradiction:

Improveinitial position estimation accuracyVSAvoidlocation determination reliability

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent introduces a repeater chain identifier as an intermediary element between the donor base station and the mobile device. This identifier acts as a mediator that carries location information about the repeater chain, enabling the location controller to determine the mobile device's position accurately even when connected through repeaters. The repeater chain identifier serves as the intermediary that bridges the gap caused by signal routing through multiple repeaters.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If time delays are used for position calculation, then location data can be obtained, but the time delays become impacted and inaccurate when routed through a repeater chain

Engineering Contradiction:

Improvetime delay information accuracyVSAvoidtime required for position estimation

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-establishing and storing location information for repeater chains in the location controller before the mobile device needs positioning. The repeater chain identifier is associated with pre-stored location data, allowing the location controller to immediately retrieve accurate location information without needing to calculate time delays through the repeater chain. This preliminary preparation eliminates the need for real-time time delay measurement and calculation.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If GPS assistance data is transferred to the mobile device, then satellite location can be initiated, but the mobile device cannot locate satellites within a set time period when attached to repeaters

Engineering Contradiction:

Improvesatellite location speedVSAvoidtime to locate satellites

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent uses preliminary action by pre-calculating and storing accurate location information for repeater chains before the mobile device needs positioning. When the mobile device attaches to a repeater chain, the location controller already has the repeater chain identifier associated with pre-stored location data, allowing immediate transfer of accurate GPS assistance data without waiting for time delay measurements or satellite acquisition attempts.

Inventive Principle:

Principle #10Preliminary action

4Device complexity

If current location determination methods are used for repeater chains, then the system remains simple, but accurate location information cannot be determined efficiently

Engineering Contradiction:

Improvelocation determination system complexityVSAvoidmobile device location accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent introduces a repeater chain identifier as a simple intermediary mechanism that adds minimal complexity to the existing system. This identifier is broadcast by repeaters and stored in the location controller, creating a straightforward association between repeater chains and their location information. The intermediary approach maintains system simplicity while enabling accurate location determination.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies preliminary action by pre-storing location information for repeater chains in the location controller before mobile devices need positioning. This pre-preparation eliminates the need for complex real-time calculations when determining mobile device locations through repeaters, maintaining system simplicity while improving location accuracy efficiency.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS9628955B1Repeater chain location determination based on a repeater chain identifier in a wireless communication network

Publication Date: 2017.04.18 T MOBILE INNOVATIONS LLC

AI summary

A wireless communication network comprising a donor base station (BS) and a repeater chain wherein a location controller stores a repeater chain BS identifier (ID) associated with a repeater chain location. The donor BS broadcasts a BS ID and serves a repeater chain. The repeater chain broadcasts the donor BS ID and the repeater chain BS ID. The communication server system receives a location request for a User Equipment (UE) and establishes data connectivity between the UE and the location controller over the donor BS and the repeater chain. The UE transfers the repeater chain BS ID to the location controller, and the PDE translates the repeater chain BS ID to the repeater chain location and transfers the repeater chain location.