Dynamic Full-Power Broadcast Beamforming Optimization

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Solution Overview

Problem

Wireless communication networks face challenges in balancing the increased coverage of full-power broadcast beamforming with the interference and decreased throughput it causes, leading to the underutilization of its benefits compared to tapered beamforming.

Innovation Solution

A method and system that dynamically optimize full-power broadcast beamforming by adjusting beamforming weights based on location data from user devices within the network cell, enabling full-power broadcast when benefits outweigh disadvantages, such as a higher number of devices at the cell edge, and disabling it when interference and throughput issues arise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If full-power broadcast beamforming is used, then network coverage is improved, but interference with neighboring cells increases and throughput decreases

Engineering Contradiction:
Improvecoverage areaVSAvoidinterference
Core Design Contradiction:
Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent applies dynamics by making the beamforming power level adjustable and switchable between full-power and tapered modes based on real-time network conditions. The base station dynamically selects the appropriate beamforming mode according to user device locations, cell load, and interference conditions, transforming the static beamforming configuration into a dynamic adaptive system that optimizes coverage and minimizes interference.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the power parameter of beamforming signals by switching between full-power mode (maximum signal strength for extended coverage) and tapered mode (reduced power to minimize interference). This parameter change allows the system to adapt to different operational scenarios, using full-power when coverage is prioritized and tapered mode when interference control is more important.

Inventive Principle:
Principle #35Parameter changes

2Area of stationary object

If full-power broadcast beamforming is used, then coverage area is extended, but throughput decreases due to interference

Engineering Contradiction:
Improvecoverage areaVSAvoidthroughput
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The system dynamically adjusts beamforming operation mode based on real-time monitoring of user device locations and network conditions. When devices are located at cell edges where coverage extension is beneficial, full-power mode is activated. When devices are in central regions or interference conditions deteriorate throughput, the system switches to tapered mode, thereby dynamically optimizing the trade-off between coverage area and throughput.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent modifies the power parameter of beamforming transmissions by switching between full-power and tapered configurations. This parameter change enables the system to extend coverage when needed while maintaining throughput performance by reducing power when interference becomes problematic, thus adapting the power level to optimize the coverage-throughput trade-off.

Inventive Principle:
Principle #35Parameter changes

3Object-generated harmful factors

If tapered beamforming is used, then interference is reduced and throughput is maintained, but coverage area is limited

Engineering Contradiction:
Improveinterference levelVSAvoidcoverage area
Core Design Contradiction:
Object-generated harmful factorsVSArea of stationary object

Solution Approach 1:

The patent implements a dynamic beamforming system that switches between tapered and full-power modes based on user device locations and network conditions. When user devices are located in cell edge regions where coverage extension is most beneficial, the system dynamically transitions from tapered to full-power mode, thereby overcoming the coverage limitation of tapered beamforming while maintaining interference control when appropriate.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the power parameter of beamforming signals by switching between tapered configuration (lower power, less interference) and full-power configuration (maximum power, extended coverage). This parameter change allows the system to overcome the coverage limitation of tapered beamforming by activating full-power mode when coverage extension is prioritized, while still utilizing tapered mode when interference control is more important.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10135509B1Optimization of full-power broadcast beamforming
Publication Date: 2018.11.20 T MOBILE INNOVATIONS LLC
  • US10135509B1 patent drawing
  • US10135509B1 patent drawing
  • US10135509B1 patent drawing

AI summary

Systems, methods, and computer-readable media for dynamically optimizing the use of full-power broadcast beamforming within a wireless communication network are provided herein. Though full-power broadcast beamforming may result in increased interference and decrease throughput, the increased coverage area provided by full-power broadcast beamforming is favored under certain conditions, including the locations of user devices within a network cell. Accordingly, location data may be received from user devices within a network cell utilizing a plurality of beams, and the locations of each of the user devices may be used to determine whether to enable full-power broadcast beamforming where each beam within plurality of beams is at a maximum signal strength. Upon determining to enable full-power broadcast beamforming, a signal weight for one or more of the beams may be adjusted to full power.