SUPL Location Platform Periodic Position Reporting

Solution Overview

Problem

Current location services in wireless networks face inefficiencies due to excessive message traffic and extended response times when providing periodic position estimates to client entities, which can be exacerbated by the need for frequent location updates.

Innovation Solution

The implementation of Secure User Plane Location (SUPL) techniques that enable periodic and triggered location services by establishing a Home SUPL Location Platform (H-SLP) to manage SUPL sessions with SUPL-enabled terminals, allowing for efficient position estimate derivation and transmission, either by the terminal or the H-SLP, based on various positioning methods and triggers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traditional location services are used to provide periodic position estimates to client entities, then location information can be obtained, but message traffic increases and response times extend

Engineering Contradiction:

Improvelocation information deliveryVSAvoidmessage traffic

Core Design Contradiction:

Loss of informationVSQuantity of substance

Solution Approach 1:

The patent extracts the location determination function from the traditional network-controlled process and places it in the user equipment (UE) itself. The UE autonomously determines its position and sends only the position result to the network, rather than exchanging multiple positioning messages. This extraction of the core positioning function to the endpoint eliminates the need for continuous positioning message exchanges between network entities.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements preliminary action by having the UE continuously determine its position in advance and store position results locally. When a client entity requests location information, the network can quickly retrieve and deliver the pre-computed position data without initiating a new positioning procedure. This preliminary determination of position eliminates the need for real-time positioning message exchanges.

Inventive Principle:

Principle #10Preliminary action

2Loss of information

If traditional location services are used to provide periodic position estimates to client entities, then location information can be obtained, but response time increases

Engineering Contradiction:

Improvelocation information deliveryVSAvoidresponse time

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The patent implements preliminary action by having the UE continuously determine its position in advance and store position results locally. When a client entity requests location information, the network can quickly retrieve and deliver the pre-computed position data without initiating a new positioning procedure. This preliminary determination of position eliminates the need for real-time positioning message exchanges.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent enables the UE to self-determine its position autonomously without requiring network coordination for each positioning event. The UE independently performs positioning calculations using available signals and methods, then reports results only when requested or according to predetermined criteria. This self-service approach eliminates the time-consuming network-mediated positioning message flows.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If frequent location updates are performed to maintain accurate position information, then location accuracy is improved, but message traffic and processing overhead increase

Engineering Contradiction:

Improveposition accuracyVSAvoidnetwork efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent extracts the location determination function from the traditional network-controlled process and places it in the user equipment (UE) itself. The UE autonomously determines its position and sends only the position result to the network, rather than exchanging multiple positioning messages. This extraction of the core positioning function to the endpoint eliminates the need for continuous positioning message exchanges between network entities.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by having the UE report position information selectively rather than continuously. The UE can be configured to report position only when certain criteria are met (e.g., position changes exceed a threshold, specific trigger events occur, or predetermined reporting intervals elapse). This partial reporting approach maintains position accuracy when needed while avoiding unnecessary message traffic during stable position conditions.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9860695B2Location reporting with secure user plane location (SUPL)

Publication Date: 2018.01.02 QUALCOMM INC

AI summary

Techniques for supporting periodic and other location services with Secure User Plane Location (SUPL) and other location architectures are described. The techniques can provide position estimates for a SUPL enabled terminal (SET) to a SUPL agent periodically and/or based on trigger events. A Home SUPL Location Platform (H-SLP) receives from the SUPL agent a request for position estimates for the SET. The H-SLP starts a SUPL location session with the SET. For each of at least one reporting event during the location session, the H-SLP obtains a position estimate for the SET and sends the position estimate to the SUPL agent. The position estimate may be derived by the SET and sent to the H-SLP. Alternatively, the position estimate may be derived by the H-SLP based on measurements from the SET.