Dynamic Single Frequency Network Controller for Wireless Resource Optimization

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Solution Overview

Problem

Current Single Frequency Networks are controlled statically, making it difficult for operators to optimize wireless network resources based on user service requirements, leading to inefficient resource allocation and coverage issues.

Innovation Solution

A method and controller for dynamically controlling Single Frequency Networks by obtaining service requests from User Equipment and modifying the network accordingly, allowing for the addition or removal of base stations and networks to optimize resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a static control mode is used for Single Frequency Network, then the network configuration is simple and stable, but it is difficult to optimize wireless network resources based on user service requirements

Engineering Contradiction:
Improveadaptability to user service requirementsVSAvoidnetwork control complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent transforms the static SFN control mode into a dynamic one by introducing real-time monitoring of service requirements and user equipment status. The network controller dynamically adjusts the SFN configuration based on current network conditions, service types, and user demands, making the system adaptable while maintaining manageable complexity through automated decision-making algorithms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where the network controller continuously monitors service requirements, user equipment status, and network performance metrics. Based on this feedback information, the controller dynamically adjusts SFN parameters such as base station participation, frequency allocation, and power distribution to optimize resource utilization while adapting to changing user needs.

Inventive Principle:
Principle #23Feedback

2Productivity

If base stations are added or removed dynamically in Single Frequency Network, then resource utilization improves, but network control and management becomes more complex

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidnetwork operation ease
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent enables the SFN system to self-adjust by implementing automated algorithms that monitor network conditions and autonomously make decisions about base station activation, deactivation, and reconfiguration. This self-service capability allows dynamic resource optimization without requiring manual intervention, thereby improving resource utilization while maintaining operational simplicity through automation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent pre-configures multiple SFN patterns and base station groups that can be rapidly activated or deactivated based on service requirements. By preparing these configurations in advance, the system can quickly adapt to changing conditions without complex real-time decision-making, thus improving resource utilization efficiency while keeping control operations straightforward.

Inventive Principle:
Principle #10Preliminary action

3Quantity of substance

If single frequency coverage is used for broadcast service, then frequency resources are saved and spectrum utilization is improved, but coverage blind areas exist in cities with high buildings

Engineering Contradiction:
Improvefrequency resource consumptionVSAvoidcoverage reliability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent segments the broadcast coverage area into multiple zones, each served by different base stations transmitting on the same frequency. By dividing the coverage area and assigning different base stations to different zones, the system maintains frequency resource efficiency while ensuring that blind areas are covered by alternative base stations, thus improving coverage reliability without sacrificing spectral efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different base stations to transmit on the same frequency in different geographical locations. This enables the system to maintain single-frequency efficiency in areas where it works well while providing alternative frequency assignments or power adjustments in specific blind areas, thus achieving both resource efficiency and coverage reliability through location-specific optimization.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2209278B1A control method of a single-frequency network and a control entity of a single-frequency network
Publication Date: 2019.10.02 CHINA MOBILE COMM GRP CO LTD
  • EP2209278B1 patent drawingFigure 1
  • EP2209278B1 patent drawingFigure 2~3
  • EP2209278B1 patent drawingFigure 4~5

AI summary

This invention discloses a control method of a single-frequency network and a control entity of a single-frequency network. The control method of the single-frequency network provided by this invention comprises: obtaining the service request information sent by a user terminal; changing the single-frequency network according to the service request information. The control entity of the single-frequency network provided by this invention comprises: an obtaining unit, used for obtaining the service request information sent by a user terminal; a controlling unit, used for changing the single-frequency network according to the service request information. This invention realizes the dynamic control of a single-frequency network by changing the single-frequency network according to the service request information sent by a user terminal. Consequently, the service provider can dynamically change a single-frequency network according to the requirement of users and implement the optimization configuration of wireless network resources.