Dynamic Broadcast Beam Weight Determination for Multi-Antenna Systems

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Solution Overview

Problem

Current communication systems using multi-antenna technology for beam forming struggle to achieve optimal signal quality and capacity due to static beam weight settings, leading to interference issues and suboptimal performance.

Innovation Solution

A dynamic broadcast beam weight determination method and apparatus that adjusts beam weights based on real-time user information, using a network element to determine optimal beam weight combinations and apply them across cells, ensuring dynamic matching with user distribution and reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If static beam weight settings are used in multi-antenna beam forming, then device complexity is reduced and ease of operation is improved, but signal quality and communication capacity deteriorate due to interference issues and suboptimal performance

Engineering Contradiction:

Improveease of operationVSAvoidsignal quality

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent implements dynamic beam weight adjustment by determining broadcast beam weights based on real-time user distribution information. The system continuously updates beam weights according to changing user locations and densities, transforming the static beam forming approach into a dynamic one that adapts to environmental conditions, thereby improving signal quality while maintaining operational simplicity through automated adjustment.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs feedback mechanisms by collecting user distribution information from the network and using it to adjust beam weights. The determined beam weights are applied and their effectiveness is monitored through continued user distribution measurements, creating a closed-loop system that automatically optimizes performance without requiring manual intervention.

Inventive Principle:

Principle #23Feedback

2Device complexity

If static beam weight settings are used in multi-antenna beam forming, then device complexity is reduced, but communication capacity deteriorates due to suboptimal performance

Engineering Contradiction:

Improvedevice complexityVSAvoidcommunication capacity

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The system implements self-service by automatically determining and adjusting beam weights based on user distribution information without requiring external manual configuration. The network element autonomously collects user data, calculates optimal beam weights, applies them, and continues monitoring, enabling the system to self-optimize communication capacity while keeping device complexity manageable through algorithmic automation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent changes the beam weight parameters dynamically based on user distribution conditions. By adjusting these critical parameters in response to real-time network conditions, the system optimizes communication capacity and signal quality without requiring complex hardware modifications, achieving performance improvement through software-based parameter optimization.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If static beam weights are applied across cells, then ease of operation is improved, but interference increases and signal quality deteriorates

Engineering Contradiction:

Improveease of operationVSAvoidinterference

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by determining beam weights specific to each cell's user distribution characteristics rather than using uniform weights across all cells. Each cell's beam weights are optimized according to its local user density and spatial distribution, allowing the system to reduce inter-cell interference while maintaining operational simplicity through automated localized optimization.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11804915B2Broadcast beam weight determination method and device, network element, and storage medium

Publication Date: 2023.10.31 ZTE CORP

AI summary

Provided are a broadcast beam weight determination method and apparatus, a broadcast beam weight determination network element, a storage medium and a communications system. The broadcast beam weight determination method includes: determining a predicted performance indicator corresponding to a candidate broadcast beam weight combination according to user information of a region; determining a first broadcast beam weight combination corresponding to an optimal predicted performance indicator; and applying the first broadcast beam weight combination.