Processing Window Configuration for Gap-Free UE Positioning

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Solution Overview

Problem

In 5G New Radio mobile communication networks, the use of measurement gaps (MGs) for reference signal (RS) measurements by target UEs limits the accuracy of positioning, as they restrict the number of signals that can be measured.

Innovation Solution

Implementing a processing window (PW) configuration that allows UEs to measure RS resources without MGs, enabling RS processing within active downlink bandwidth parts, and coordinating RS processing times to enhance measurement capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If measurement gaps (MGs) are used for reference signal measurements, then the UE can perform RS measurements, but the number of measurable signals is limited which reduces positioning accuracy

Engineering Contradiction:

Improvepositioning accuracyVSAvoidnumber of measurable signals

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent extracts the RS measurement function from the constrained MG framework and establishes an independent PW configuration. This allows the UE to measure RS resources during active downlink bandwidth parts without being restricted by MG limitations, thereby increasing the number of measurable signals and improving positioning accuracy

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces dynamic PW configuration that can be adapted to different RS resource timings and UE capabilities. The PW configuration includes flexible parameters such as processing time and RS reception times, allowing the system to dynamically adjust measurement opportunities based on network conditions and UE capabilities, thus enabling more RS resources to be measured

Inventive Principle:

Principle #15Dynamics

2Measurement precision

If the UE measures multiple RS resources within active downlink bandwidth parts, then positioning accuracy improves, but coordination of processing times becomes more complex

Engineering Contradiction:

Improvepositioning accuracyVSAvoidprocessing window coordination

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a serving base station as an intermediary that coordinates PW configurations between the network and the UE. The base station receives requests for PW configuration, determines appropriate PW parameters based on RS configuration and UE capabilities, and provides the configured PW to the UE. This intermediary coordination simplifies the complexity by centralizing the decision-making process

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameter structure from MG-based constraints to PW-based flexibility. The PW configuration includes parameters such as processing time, RS reception times, and associations with specific bandwidth parts. By changing these parameters dynamically based on network conditions and UE capabilities, the system can coordinate multiple RS measurements without excessive complexity

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12445880B2Processing window design for positioning

Publication Date: 2025.10.14 QUALCOMM INC

AI summary

Techniques are provided in which a target UE can be provided with a processing window (PW) configuration that defines a PW during which the target UE may measure one or more RS resources. The PW optionally may allow the target UE to transmit an uplink (UL) RS. The PW configuration may be provided to the target UE by a serving base station of the target UE in response to a request for the PW configuration by the target UE or a location server. The request may include information regarding an RS configuration provided to the target UE.