Dynamic Beam Width and Power Control Protocol

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Solution Overview

Problem

Current cellular communication networks face challenges with reduced robustness due to uncertainties such as blockage, mobility, and channel fluctuation, especially in high-frequency bands like THz, where narrow beams are used, leading to issues like beam misalignment and link failure.

Innovation Solution

Implementing dynamic control of beam width and power based on transmission/reception demands, including device status, environment status, and application parameters, using bidirectional control signaling and joint beam width and power control protocols to optimize beam width and power for enhanced coverage and robustness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If narrow beams are used in high-frequency bands, then transmission power efficiency is improved, but robustness against blockage and mobility is reduced

Engineering Contradiction:
Improvetransmission power efficiencyVSAvoidrobustness against blockage and mobility
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent implements dynamic beam width adjustment where the beam width is not fixed but adaptively changed based on transmission conditions. The transmitting node receives requests from the receiving node to adjust beam width dynamically, allowing the system to switch between narrow beams (for power efficiency) and wide beams (for robustness) according to real-time requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the beam width parameter dynamically based on transmission demands, device status, and environment status. By adjusting this key parameter, the system can optimize between power efficiency and robustness, switching from narrow to wide beams when robustness is needed and vice versa.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If beam width is increased to improve coverage, then robustness is enhanced, but transmission power efficiency decreases

Engineering Contradiction:
Improvecoverage probabilityVSAvoidtransmission power efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system dynamically adjusts beam width based on received requests and transmission conditions. When the receiving node experiences blockage or needs wider coverage, it requests beam width adjustment, and the transmitting node responds by widening the beam temporarily, then returns to narrow beam operation when conditions improve, thus balancing coverage and power efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements periodic beam width adjustment through a protocol where nodes exchange requests and responses at regular intervals or when conditions change. This periodic control allows the system to maintain optimal beam width settings while minimizing continuous power consumption associated with wide beam transmission.

Inventive Principle:
Principle #19Periodic action

3Loss of energy

If narrow beams are used for high-frequency transmission, then power efficiency is improved, but beam misalignment probability increases

Engineering Contradiction:
Improvepower efficiencyVSAvoidbeam alignment accuracy
Core Design Contradiction:
Loss of energyVSMeasurement precision

Solution Approach 1:

The receiving node monitors transmission conditions and proactively sends beam width adjustment requests before complete misalignment occurs. This preliminary action allows the beam width to be increased in advance when misalignment risk is detected, preventing link failure while maintaining narrow beam operation during stable conditions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the receiving node monitors beam quality and transmission conditions, then sends requests back to the transmitting node to adjust beam width. This closed-loop feedback system continuously optimizes beam alignment by adjusting width based on real-time performance metrics.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20240040401A1Protocol for beam width and power control
Publication Date: 2024.02.01 APPLE INC
  • US20240040401A1 patent drawing
  • US20240040401A1 patent drawing
  • US20240040401A1 patent drawing

AI summary

Techniques for beam width and power control, and devices and components including apparatus, systems, and methods for beam width and power control are described herein.