Dynamic Beamforming Weight Adjustment for Packet Drop Reduction

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Solution Overview

Problem

Historical beamforming methods in telecommunications networks cannot dynamically adjust phase, power, and amplitude values based on varying RF or network connection conditions, leading to suboptimal performance as networks expand and packet drops occur, affecting user equipment experience.

Innovation Solution

Dynamic beamforming is achieved by modifying beamforming weights, specifically phase and amplitude weights, in response to packet drops at a Cell Site Router, altering the coverage footprint of telecommunications antennas to optimize user experience and reduce service interruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If beamforming weights are statically configured based on initial coverage analysis, then the system is simple to implement, but it cannot adapt to varying RF conditions and network changes, leading to packet drops and suboptimal performance

Engineering Contradiction:
Improveadaptability to RF conditionsVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic beamforming by continuously monitoring packet drop conditions and adjusting beamforming weights in real-time based on current RF conditions and network state, transforming the static weight configuration into a dynamic adaptation mechanism that responds to changing environmental factors

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system establishes a feedback loop where packet drop measurements at the CSR are continuously monitored and used to trigger beamforming weight adjustments, creating a closed-loop control system that adapts to network conditions based on actual performance metrics

Inventive Principle:
Principle #23Feedback

2Reliability

If beamforming weights are dynamically adjusted based on packet drops, then network performance and user experience are optimized, but the system complexity increases due to continuous monitoring and adjustment mechanisms

Engineering Contradiction:
Improvenetwork performanceVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses packet drop measurements as a feedback signal to trigger beamforming weight adjustments, creating a performance-based adaptation mechanism that optimizes network reliability while activating complex processing only when performance degradation is detected

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent dynamically changes beamforming weight parameters (phase and amplitude) based on monitored packet drop conditions, allowing the system to optimize network performance by adjusting critical transmission parameters in response to actual network state

Inventive Principle:
Principle #35Parameter changes

3Quantity of substance

If the coverage footprint is expanded to serve more user devices, then network capacity increases, but packet drops increase due to degraded signal quality at coverage edges

Engineering Contradiction:
Improvenumber of served UEsVSAvoidpacket drop rate
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent applies different beamforming weights to different spatial regions, creating localized optimization where users experiencing packet drops receive enhanced signal quality through targeted weight adjustments, while other regions maintain their original coverage characteristics

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically changes phase and amplitude parameters of beamforming weights in response to packet drop conditions, adjusting the electromagnetic field distribution to improve signal quality in problematic areas without fundamentally changing the overall coverage footprint

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11303336B1Dynamic modification of beamforming weights
Publication Date: 2022.04.12 T MOBILE INNOVATIONS LLC
  • US11303336B1 patent drawing
  • US11303336B1 patent drawing
  • US11303336B1 patent drawing

AI summary

Dynamic beamforming in a telecommunications network in response to packet drops at a cell site router (CSR) is described. A measure of packet drops at a cell site router is determined. The measure of packet drops is compared to a threshold measure of acceptable packet drops and it is determined if the measure exceeds the threshold measure. Upon determining that the threshold measure is exceeded, one or more of a phase weight measure or an amplitude weight measure for a beam associated with an antenna or antenna array are modified such that there is a decrease in the number of user equipment (UEs) that are serviced by the associated antenna/antenna array.