Mobile Endpoint Device Spatial Orientation Reporting for Beamformed Networks

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Solution Overview

Problem

Traditional cellular network drive tests are costly and labor-intensive, and existing Minimization of Drive Tests (MDT) features are not optimized for beamformed cellular wireless communications systems, which limits the ability to adjust network aspects based on precise location and orientation data from mobile endpoint devices.

Innovation Solution

A method and system that enable mobile endpoint devices to measure and report performance indicators, such as signal strength, along with spatial orientation information and locations, to the cellular network, allowing for adjustments to network configurations, including beam management and antenna deployments, to optimize coverage and reduce the need for extensive drive testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional drive tests are used to optimize cellular network coverage, then measurement accuracy and network optimization quality are improved, but operational costs and labor requirements increase

Engineering Contradiction:
Improvecoverage measurement accuracyVSAvoidoperational efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system enables user equipment to automatically perform measurements and report performance indicators to the network without requiring technician intervention. The UE self-configures measurement parameters, collects data during normal operation, and autonomously reports findings, transforming the network optimization process from a manual service into a self-executing function.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical drive test system (technicians driving vehicles with measurement equipment) with an electronic/software-based solution where UEs perform measurements using their existing capabilities. The physical measurement campaign is substituted with automated electronic data collection and processing through the network interface.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If MDT features are implemented in traditional cellular systems, then drive test requirements are reduced, but the system lacks optimization for beamformed communications and spatial orientation data

Engineering Contradiction:
Improvedrive test minimizationVSAvoidbeamformed system compatibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adapts measurement configurations based on the detected beamforming scenario. When beamformed communications are detected, the system activates spatial orientation measurement capabilities and adjusts reporting parameters accordingly, allowing the measurement system to flexibly respond to different network configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent extends the MDT functionality to work with both traditional omnidirectional communications and modern beamformed systems. By incorporating spatial orientation information and beam-specific measurements, the system becomes universally applicable across different network architectures and communication modes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If spatial orientation information is collected from mobile endpoint devices, then network adjustment precision is improved, but measurement and reporting complexity increases

Engineering Contradiction:
Improvenetwork adjustment precisionVSAvoidmeasurement system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The network pre-configures measurement parameters and spatial orientation collection requirements before the UE begins measurements. By establishing the measurement framework in advance, the system avoids complex real-time decision-making at the UE, reducing measurement system complexity while maintaining precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediate processing layer that standardizes spatial orientation data from various UE sources and formats it for network consumption. This intermediary processing simplifies the interface between the complex UE measurement capabilities and the network adjustment functions, managing complexity through abstraction.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11032721B2Minimization of drive tests in beamformed wireless communication systems
Publication Date: 2021.06.08 AT&T INTELLECTUAL PROPERTY I L P
  • US11032721B2 patent drawing
  • US11032721B2 patent drawing
  • US11032721B2 patent drawing

AI summary

An example method may include a processing system of a cellular network having a processor receiving, from a mobile endpoint device, a measurement of a performance indicator, a location, and spatial orientation information, the measurement of the performance indicator based upon at least one wireless signal from a base station of the cellular network, and adjusting at least one aspect of the cellular network in response to the measurement of the performance indicator, the location, and the spatial orientation information. Another example method may include a processing system of a mobile endpoint device having a processor receiving a wireless signal from a base station of a cellular network, capturing a measurement of a performance indicator based upon the wireless signal, recording a location and spatial orientation information, and transmitting to the cellular network the measurement of the performance indicator, the location, and the spatial orientation information.