Uplink Positioning Beam Selection for Lower-Power Multi-Beam Terminals

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Solution Overview

Problem

There is currently no specific regulation on how to determine the beams for transmitting uplink reference signals by a terminal device in a multi-beam system, leading to inefficiencies in resource utilization and increased power consumption during cell reselection.

Innovation Solution

The method involves determining the first beam for transmitting uplink reference signals based on signal measurement results of downlink or uplink signals, allowing the terminal device to optimize beam selection and reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the terminal device transmits uplink reference signals using beams in a multi-beam system, then positioning accuracy is improved, but there is no specific regulation on beam determination leading to increased power consumption and reduced resource utilization efficiency

Engineering Contradiction:

Improvepositioning accuracyVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The terminal device determines the first beam for transmitting uplink reference signals in advance based on signal measurement results of downlink or uplink signals. This preliminary beam determination avoids the need for exhaustive beam searching during positioning, thereby reducing power consumption while maintaining positioning accuracy

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The terminal device autonomously determines its transmission beam by measuring signal characteristics and selecting the optimal beam based on measurement results. This self-service approach eliminates the need for network-side beam indication, reducing signaling overhead and improving resource utilization efficiency

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If the terminal device determines beams autonomously without specific regulations, then adaptability is improved, but resource utilization efficiency deteriorates due to lack of optimization

Engineering Contradiction:

Improvebeam selection adaptabilityVSAvoidresource utilization efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The terminal device uses signal measurement results as feedback to determine the optimal beam for transmitting uplink reference signals. By continuously measuring signal quality and adjusting beam selection based on these measurements, the device achieves both adaptability to different channel conditions and optimized resource utilization

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250351114A1Method for positioning, terminal device, and network device

Publication Date: 2025.11.13 QUECTEL WIRELESS SOLUTIONS CO LTD

AI summary

The present disclosure provides a method for positioning, a terminal device, and a network device. One example method includes: determining a first beam for transmitting uplink reference signals based on a signal measurement result of a first signal, wherein the first signal comprises at least one of a downlink signal or an uplink signal, and the uplink reference signals are configured to position a terminal device.