Wireless Device CGI Reporting via Unified Measurement Objects

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Solution Overview

Problem

Current wireless communication systems face inefficiencies in configuring wireless devices to report cell global identifiers (CGI), particularly due to PCI conflicts and closed subscriber groups, which require extensive signaling and lead to unnecessary measurement reports.

Innovation Solution

Configuring wireless devices to report CGIs for multiple cells within a single information element, using measurement objects or reporting configuration elements that include lists of cells for which to report or not report CGIs, reducing control signaling and addressing PCI confusion or CSG issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the network node configures the wireless device to report CGI for multiple cells by updating multiple measurement objects, then the CGI reporting coverage is improved, but the control signaling overhead increases

Engineering Contradiction:
ImproveCGI reporting coverageVSAvoidcontrol signaling overhead
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent combines multiple measurement objects into a single measurement object that contains a list of multiple cells. This single measurement object configures the wireless device to report CGI for all listed cells simultaneously, thereby reducing the number of separate configuration messages and lowering control signaling overhead while maintaining comprehensive CGI reporting coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single measurement object is designed to serve multiple functions by including a list of multiple cells. It simultaneously configures CGI reporting for all cells in the list, making the measurement object universal and multi-functional rather than dedicated to a single cell, thus reducing signaling overhead.

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

2Measurement precision

If the network node sends frequent measurement reports to resolve PCI conflicts, then the cell identification accuracy is improved, but the radio resource consumption increases

Engineering Contradiction:
Improvecell identification accuracyVSAvoidradio resource consumption
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The patent configures the wireless device in advance with a single measurement object that includes a list of multiple cells for which CGI should be reported. This preliminary configuration allows the device to proactively collect and report CGI information for all relevant cells in one go, improving cell identification accuracy without requiring frequent subsequent reports, thereby reducing radio resource consumption.

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the wireless device performs measurements on multiple cells separately, then the measurement accuracy is improved, but the handover speed decreases

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidhandover speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent merges multiple separate measurement configurations into a single measurement object that encompasses a list of multiple cells. This allows the wireless device to perform measurements on all listed cells simultaneously through one unified configuration, maintaining measurement accuracy while enabling faster handover decisions by having all necessary measurement data readily available.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11343727B2Cell global identifier reporting in a wireless communication system
Publication Date: 2022.05.24 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US11343727B2 patent drawing
  • US11343727B2 patent drawing
  • US11343727B2 patent drawing

AI summary

According to an aspect, a wireless device (111) receives, from a network node (101), a measurement object (125) that includes a list (127) of one or more cells for which to report a cell global identifier, CGI, or a list (129) of one or more cells for which not to report the CGI. Alternatively, the wireless device (111) may receive, from a network node (101), a measurement reporting configuration information element or a measurement identity information element of a measurement configuration that includes a list (127) of one or more cells for which to report a CGI or a list (129) of one or more cells for which not to report a CGI.