Broadcast Beam Weight Subnetting for LTE/5G Coverage and Interference

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Solution Overview

Problem

Existing network optimization methods for 4G LTE/5G NR ultra-dense co-frequency networking are inefficient due to the exponential increase in antenna weight combinations, leading to high computational complexity and time consumption.

Innovation Solution

The method involves dividing cells into subnets based on inter-cell overlapping coverage and inter-cell interference, determining a subnet target broadcast beam weight set for each subnet, and sending these weights to the member cells to optimize broadcast beams.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the number of antenna weight combinations is increased to cover diverse scenarios, then the coverage capability is improved, but the computational complexity and time consumption increase exponentially

Engineering Contradiction:
Improvecoverage capabilityVSAvoidcomputational complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent divides the network into multiple subnets based on cell coverage overlap and interference relationships. Each subnet is independently optimized with its own target broadcast beam weight set, reducing the overall computational complexity from exponential to linear or polynomial scale while maintaining comprehensive coverage across all scenarios.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent determines subnet target broadcast beam weight sets based on local characteristics of each subnet, specifically considering cell coverage and inter-cell interference within each subnet. This localized optimization approach allows each subnet to be tuned independently according to its specific conditions, improving adaptability without requiring global optimization of all antenna weight combinations.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If the number of antenna weight combinations is increased to cover diverse scenarios, then the coverage capability is improved, but the time consumption increases

Engineering Contradiction:
Improvecoverage capabilityVSAvoidtime consumption
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

By segmenting the network into subnets and optimizing each independently, the patent reduces the time required for network planning and optimization from exponential to manageable levels, enabling faster deployment and adaptation to diverse scenarios.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent pre-calculates and determines target broadcast beam weight sets for each subnet based on their specific characteristics. These pre-determined weight sets can be directly applied when deploying new scenarios, eliminating the need for time-consuming real-time optimization and enabling rapid adaptation.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If traditional network planning methods are used, then the network can be deployed, but the optimization efficiency is low and energy-consuming

Engineering Contradiction:
Improvenetwork deploymentVSAvoidoptimization efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent improves optimization efficiency by dividing the network into subnets and optimizing each independently based on local coverage and interference characteristics, reducing both computational resources and energy consumption while maintaining deployment feasibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent enhances optimization efficiency by determining broadcast beam weight sets tailored to each subnet's specific conditions, allowing for more effective and energy-efficient optimization compared to uniform traditional methods.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12356213B2Method and apparatus for sending weight, storage medium and electronic apparatus
Publication Date: 2025.07.08 ZTE CORP
  • US12356213B2 patent drawing
  • US12356213B2 patent drawing
  • US12356213B2 patent drawing

AI summary

Provided are a weight sending method and apparatus, a storage medium and an electronic device. The weight sending method includes: dividing a plurality of cells to obtain one or more subnets; for any first subnet of the one or more subnets, determining a subnet target broadcast beam weight set of the first subnet from preset weights of a member cell according to at least one of: cell coverage of the member cell included in the first subnet or inter-cell interference of the member cell included in the first subnet; and sending the determined subnet target broadcast beam weight set to the first subnet.