Heterogeneous Self-Organizing Network for Access and Backhaul Optimization

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Solution Overview

Problem

Current wireless communication networks face high operational costs due to the complexity and skill requirements for establishing, managing, and maintaining them, with existing self-organizing network (SON) techniques primarily focused on the access portion of eNodeBs, limiting their ability to optimize network performance across the entire network and not effectively utilizing frequency bands with restrictions.

Innovation Solution

Implementing self-organizing network modules in heterogeneous mesh networks that can dynamically switch roles, operate on white-space frequencies, and integrate disparate technologies, allowing for real-time optimization of operational parameters such as power, frequency allocation, and network configuration across both access and backhaul sides, leveraging a computing cloud and software-defined networking for centralized decision-making.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If SON techniques are implemented only at the eNodeB level, then individual eNodeB optimization is achieved, but the network-wide view and coordination capability is lost

Engineering Contradiction:
ImproveeNodeB autonomous optimizationVSAvoidnetwork operational parameters visibility
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The SON functionality is segmented into two distinct components: a distributed SON module at each eNodeB for local autonomous optimization, and a centralized SON module at the network management level for global coordination. This segmentation allows each component to perform its specialized function while maintaining overall system intelligence.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The distributed SON modules are nested within the broader centralized SON framework. Each eNodeB contains its own SON capabilities, which are themselves nested within the overall network-wide SON management system, creating a hierarchical structure where local and global optimization work together.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of manufacture

If network resources are configured with static roles (access or backhaul), then configuration simplicity is maintained, but network flexibility and dynamic adaptation capability is reduced

Engineering Contradiction:
Improveconfiguration simplicityVSAvoidnetwork role dynamic switching
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The network resource configuration transitions from static role assignment to dynamic role switching. The SON module continuously monitors network conditions and automatically reconfigures resource roles (access or backhaul) based on real-time environmental factors, traffic patterns, and network performance requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operational parameters of network resources dynamically. Instead of fixed role assignments, the SON module adjusts configuration parameters such as frequency allocation, power levels, and functional roles based on measured environmental conditions and network state.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If frequency bands with restrictions are avoided, then interference mitigation is achieved, but spectrum utilization efficiency is reduced

Engineering Contradiction:
Improveinterference avoidanceVSAvoidspectrum capacity utilization
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The SON module transforms restricted frequency bands from harmful sources of potential interference into beneficial additional spectrum resources. By implementing dynamic power control and coordination, the system converts previously unusable restricted bands into productive capacity, turning a limitation into an opportunity for increased spectrum utilization.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The system changes power parameters dynamically for restricted frequency bands. Instead of avoiding these bands entirely, the SON module adjusts transmit power levels and operational parameters to comply with restrictions while still utilizing the spectrum effectively, thereby increasing overall capacity without causing harmful interference.

Inventive Principle:
Principle #35Parameter changes

4Manufacturing precision

If manual network provisioning and maintenance is performed, then precise control over network parameters is achieved, but operational costs and time consumption increase

Engineering Contradiction:
Improvenetwork parameter control precisionVSAvoidprovisioning and maintenance time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The SON module implements self-service capabilities that allow the network to automatically provision, configure, optimize, and heal itself without human intervention. The system autonomously monitors its own state, detects issues, and performs corrective actions, eliminating the need for manual operations while maintaining precise parameter control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The SON module incorporates continuous feedback mechanisms that monitor network performance and environmental conditions. This feedback loop enables the system to automatically adjust parameters and respond to changing conditions in real-time, replacing manual control with intelligent automated decision-making that maintains precision while reducing time and cost.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9113352B2Heterogeneous self-organizing network for access and backhaul
Publication Date: 2015.08.18 PARALLEL WIRELESS INC
  • US9113352B2 patent drawing
  • US9113352B2 patent drawing
  • US9113352B2 patent drawing

AI summary

This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and computer-readable mediums disclosed herein, a processor receives an environmental condition for a mesh network. The processor may have measured the environmental condition, or it could have received it from elsewhere, e.g., internally stored information, a neighboring node, a server located in a computing cloud, a network element, user equipment (“UE”), and the like. After receiving the environmental condition, the processor evaluates it and determines whether an operational parameter within the mesh network should change to better optimize network performance.