Location Reference Offset Compression for Wireless Bandwidth Reduction

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Solution Overview

Problem

Traditional methods for determining user equipment (UE) location in wireless networks face significant bandwidth consumption and inefficiencies due to the need to transmit large amounts of location information, especially in scenarios with a high volume of location requests from a large number of devices, such as non-GPS enabled UEs in TFL/NELOS-enabled systems.

Innovation Solution

The use of reference and offset values to communicate location information, where reference values are transmitted infrequently and offset values are used to update location information, reducing the overall bandwidth required by using a Location Reference and Offset Compression (LROC) component that facilitates the determination and communication of location information using 12-byte offset records and corresponding location reference records.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional location information transmission methods are used, then location accuracy is maintained, but bandwidth consumption increases significantly

Engineering Contradiction:

Improvelocation accuracyVSAvoidbandwidth consumption

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The location information is segmented into two components: reference location information (transmitted infrequently) and offset values (transmitted frequently). This segmentation allows the system to maintain full location accuracy while reducing bandwidth consumption, as the offset values are typically much smaller in size than complete location records.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Reference location information is transmitted in advance and stored in the network. When location updates are needed, only the offset values relative to these pre-transmitted references are sent, eliminating the need to retransmit complete location information and significantly reducing bandwidth usage.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If complete location information is transmitted frequently, then location updates are current, but network resources are depleted

Engineering Contradiction:

Improvelocation update currencyVSAvoidnetwork resource consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system implements periodic transmission of reference location information combined with intermittent transmission of offset values. This periodic action pattern ensures location information remains current while optimizing network resource usage by transmitting data only when necessary rather than continuously.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

Reference location information is prepared and transmitted in advance, allowing the network to maintain current location data with minimal subsequent transmissions. This preliminary action reduces the need for frequent full location information transmissions, conserving network resources while maintaining reliability.

Inventive Principle:

Principle #10Preliminary action

3Quantity of substance

If reference and offset values are used, then bandwidth consumption is reduced, but system complexity increases

Engineering Contradiction:

Improvebandwidth consumptionVSAvoidsystem complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The reference location information acts as an intermediary between the complete location data and the offset values. This intermediary structure simplifies the system by providing a stable reference point that both the network and user equipment can use to interpret offset values, reducing the complexity of processing and transmitting location information.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If location information is transmitted for all UEs, then location services are available, but bandwidth consumption increases

Engineering Contradiction:

Improvelocation service availabilityVSAvoidbandwidth consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

Location information is segmented into reference data and offsets, enabling efficient transmission for multiple UEs. This segmentation allows the network to serve many user equipment with location services while consuming significantly less bandwidth, as offset values can be transmitted compactly to multiple devices rather than transmitting complete location information to each.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS9473897B2Reference based location information for a wireless network

Publication Date: 2016.10.18 AT&T MOBILITY II LLC

AI summary

Determining referenced based location information for a wireless radio network is described. Referenced based location information can include determining location reference information and corresponding location offset information based on location information. In an aspect, location information can be timed fingerprint location information. Location offset information can be communicated in a wireless network at a lower operational cost than the associated location information. As such, use of referenced based location information for a wireless network can reduce bandwidth consumption as compared to location information communicated at similar intervals. This is particularly true in large wireless networks. Moreover, the use of referenced based location information for determining timed fingerprint location information can be highly attractive in light of timed fingerprint location information facilitating location information for many non-GPS enabled devices and being associated with significant increases in the frequency and density of location event requests.