BRS-RP Reporting Mechanism for 5G Beam Management

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Solution Overview

Problem

In 5th generation wireless systems, existing technologies face challenges in efficiently reporting beam reference signal receiving power (BRS-RP) across multiple transmission beams, leading to increased overhead and suboptimal channel control configurations.

Innovation Solution

A method and system for reporting BRS-RP that includes generating and transmitting reports from user equipment (UE) to evolved Node B (eNB), which comprise receiving power, BRS identifiers, transmission beam identifiers, and antenna panel identifiers, allowing eNB to select optimal transmission beam candidates and configure channel control information such as CSI-RS and EPDCCH.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If detailed BRS-RP reporting is performed for all transmission beams, then measurement precision is improved, but overhead increases

Engineering Contradiction:
ImproveBRS-RP measurement precisionVSAvoidreporting overhead
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent extracts and reports only the most relevant BRS-RP information - specifically the highest BRS-RP value and its associated beam/antenna panel identifiers - rather than reporting all BRS-RP measurements. This selective extraction reduces reporting overhead while maintaining the precision needed for channel control optimization.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by reporting only a subset of BRS-RP measurements - specifically focusing on the maximum BRS-RP value and corresponding configuration information - rather than performing excessive reporting of all beam measurements. This partial reporting achieves the necessary measurement precision for channel control while reducing overall overhead.

Inventive Principle:
Principle #16Partial or excessive action

2Adaptability or versatility

If comprehensive beam and antenna panel identification is included in reports, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvechannel control adaptabilityVSAvoidreporting apparatus complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the BRS-RP report into distinct components: the highest BRS-RP value, transmission beam identifier, and antenna panel identifier. This segmentation allows the system to maintain comprehensive adaptability for channel control while reducing overall reporting complexity by organizing information into manageable, structured elements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary identification and selection of the highest BRS-RP value and its associated beam/antenna panel configurations before generating the report. This preliminary action ensures that the report contains only the most relevant information for channel control adaptability, reducing the complexity of the reporting apparatus by pre-filtering the data.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If optimal beam selection is performed, then productivity is improved, but measurement precision requirements increase

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoidBRS-RP measurement precision
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent implements feedback by reporting the highest BRS-RP value along with its associated transmission beam and antenna panel identifiers to the base station. This feedback mechanism enables the base station to perform optimal beam selection for improved resource allocation productivity, while the precision requirements are managed by focusing measurements on the maximum value rather than requiring ultra-precise measurements across all beams.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10581503B2Method, apparatus and system for reporting beam reference signal receiving power
Publication Date: 2020.03.03 APPLE INC
  • US10581503B2 patent drawing
  • US10581503B2 patent drawing
  • US10581503B2 patent drawing

AI summary

Machine-readable media, methods, apparatus and system for beam acquisition in a wireless system are disclosed. In some embodiments, a base station may comprise a transceiver to transmit, to a user equipment (UE), a plurality of beam reference signals (BRSs) via a plurality of transmission beams; and to receive, from the UE, a report to report receiving information associated with at least one of the BRSs on at least one of the transmission beams, wherein the report comprises an antenna identifier to identify a directional antenna panel or an antenna port associated with the directional antenna panel of the UE which receives the at least one of the BRSs on the at least one of the transmission beam.