UE Positioning Timing Error Grouping for Accurate Location Fixes

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Solution Overview

Problem

Existing positioning technologies, such as RTT-based and TDOA-based methods, are affected by Transmission Reference Point (TRP) and receiving/transmitting timing errors, which degrade the accuracy of User Equipment (UE) location calculations.

Innovation Solution

A method and apparatus that utilize Timing Error Groups (TEGs) to associate reference signals and positioning measurement results, allowing for the elimination of Rx/Tx timing errors by correlating these groups, thereby improving positioning accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If time-based positioning methods (RTT, TDOA) are used, then positioning functionality is achieved, but positioning accuracy deteriorates due to Rx/Tx timing errors

Engineering Contradiction:

Improvepositioning accuracyVSAvoidRx/Tx timing error impact

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces Timing Error Groups (TEGs) as an intermediary mechanism to manage and compensate for Rx/Tx timing errors. The network device sends indication information containing TEG associations that enable the terminal to identify and correct timing errors in positioning measurements, thereby eliminating the harmful effect of timing errors on positioning accuracy

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameter representation by introducing TEG identifiers and association relationships. Instead of directly measuring absolute timing values that are affected by errors, the system uses TEG-based parameter transformations to represent timing relationships, allowing error compensation through parameter adjustment rather than direct measurement

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If timing error compensation mechanisms are implemented, then positioning accuracy improves, but device complexity increases

Engineering Contradiction:

Improvepositioning accuracyVSAvoidpositioning processing complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-configuring Timing Error Groups and their associations before positioning measurements are performed. The network device sends indication information in advance that contains TEG association relationships, enabling the terminal to perform error compensation during positioning without complex real-time calculations, thus improving accuracy while limiting complexity increase

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the timing error compensation process into distinct TEG components. Instead of handling all timing errors as a single complex problem, the system divides errors into separate TEGs with specific associations, allowing systematic and modular error compensation that reduces overall processing complexity

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12618935B2Positioning processing method, terminal and network side device

Publication Date: 2026.05.05 VIVO MOBILE COMM CO LTD

AI summary

The application discloses a positioning processing method, a terminal and a network side device. The positioning processing method includes: sending, by a terminal, first indication information, where the first indication information is used to indicate at least one of the following: an association between a reference signal for uplink positioning and a timing error group (TEG); or an association between a positioning measurement result and the TEG.