Full Duplex Beam Direction Selection via Local Feedback

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Solution Overview

Problem

Current wireless communication systems face challenges in efficiently managing beam direction selection for full duplex operation, leading to suboptimal performance due to unawareness of local conditions and channel conditions, which affects spectral efficiency and increases error rates.

Innovation Solution

A method where wireless communication devices transmit information for selecting transmission or reception directions for specific beams, allowing devices to determine and assign beam directions based on local and channel conditions, improving full duplex operation performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If beam direction selection is performed without considering local conditions and channel conditions, then device complexity is reduced, but spectral efficiency deteriorates and error rates increase

Engineering Contradiction:
Improvebeam direction selection complexityVSAvoidspectral efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent implements feedback mechanisms where wireless communication devices transmit information about local conditions and channel conditions to each other. This feedback enables dynamic beam direction selection that adapts to changing environmental conditions, thereby improving spectral efficiency without requiring complex centralized control. The devices use the exchanged information to independently determine optimal beam directions, maintaining low device complexity while achieving high spectral efficiency through distributed intelligence.

Inventive Principle:
Principle #23Feedback

2Device complexity

If beam direction selection is performed without considering local conditions and channel conditions, then device complexity is reduced, but error rates increase

Engineering Contradiction:
Improvebeam direction selection complexityVSAvoiderror rate
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies preliminary action by having wireless communication devices exchange information about local conditions and channel conditions before performing beam direction selection. This preparatory step ensures that devices have the necessary information to make informed decisions about beam directions, thereby reducing error rates. The information exchange and condition assessment are performed in advance, allowing devices to select optimal beam directions that account for environmental factors, thus improving reliability without adding significant complexity during the actual communication process.

Inventive Principle:
Principle #10Preliminary action

3Use of energy by moving object

If beam directions are not optimized based on real-time conditions, then computing resources are conserved, but spectral efficiency deteriorates

Engineering Contradiction:
Improvecomputing resource consumptionVSAvoidspectral efficiency
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent implements self-service by enabling wireless communication devices to autonomously perform beam direction selection based on locally available information about conditions and channel state. Each device independently processes the exchanged information and determines optimal beam directions without requiring extensive centralized computing resources. This distributed self-service approach maintains low computing resource consumption while achieving high spectral efficiency through local intelligence and real-time adaptation to environmental conditions.

Inventive Principle:
Principle #25Self-service

4Use of energy by stationary object

If beam directions are not optimized based on real-time conditions, then power resources are conserved, but spectral efficiency deteriorates

Engineering Contradiction:
Improvepower consumptionVSAvoidspectral efficiency
Core Design Contradiction:
Use of energy by stationary objectVSProductivity

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting beam directions based on real-time local conditions and channel conditions. Instead of using fixed beam configurations, the system modifies beam parameters (directions, angles, orientations) in response to changing environmental factors. This dynamic parameter adjustment improves spectral efficiency by optimizing beam alignment with receiving devices and environmental conditions, while the changes are computed efficiently to avoid excessive power consumption. The system balances power usage with performance by making targeted parameter adjustments only when conditions warrant changes.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11546032B2Beam direction selection for transmission and reception in full duplex operation
Publication Date: 2023.01.03 QUALCOMM INC
  • US11546032B2 patent drawing
  • US11546032B2 patent drawing
  • US11546032B2 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device (WCD) may transmit, to a second WCD, information for selecting transmission or reception directions for a first beam and a second beam for communications between the first WCD and the second WCD using a full duplex operation. The WCD may receive an indication to use, for the full duplex operation of the first WCD, the first beam to receive communications and the second beam to transmit communications. Numerous other aspects are provided.