LCIB Controller Interference Management

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Solution Overview

Problem

Densely-deployed Low-Cost Internet Base Stations (LCIBs) interfere with each other, leading to poor service and service interruptions due to pilot beacon collisions and interference, making it difficult for mobile stations to determine which LCIB to communicate with and causing potential overload or underutilization.

Innovation Solution

An LCIB controller determines densely-deployed operational parameters for each LCIB, including transmission power levels and channel settings, to prevent interference by configuring them to operate according to specific densely-deployed operational parameters, ensuring they do not overlap and can function without interfering with one another.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If LCIBs are densely deployed to improve coverage, then network coverage is improved, but interference between LCIBs increases causing service interruptions

Engineering Contradiction:

Improvecoverage areaVSAvoidinterference

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by configuring different operational parameters for different LCIBs based on their specific deployment locations and surrounding environment. Each LCIB receives customized parameters including transmission power levels, channel assignments, and pilot beacon configurations that are optimized for its local context, thereby maintaining coverage while minimizing interference with neighboring LCIBs

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements parameter changes by dynamically adjusting operational parameters such as transmission power, channel frequency, and pilot beacon timing for each LCIB. The system modifies these parameters based on detected interference levels, neighboring LCIB configurations, and traffic conditions, allowing densely deployed LCIBs to coexist without mutual interference

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If LCIBs operate with standard parameters, then ease of operation is improved, but pilot beacon collisions occur causing mobile stations to无法 determine which LCIB to communicate with

Engineering Contradiction:

Improveoperation simplicityVSAvoidservice stability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-configuring unique operational parameters for each LCIB before deployment and operation. The system performs preliminary parameter assignment including unique pilot beacon sequences, channel assignments, and power levels that prevent collisions from occurring in the first place, eliminating the need for complex real-time collision resolution mechanisms

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary configuration system that mediates between standard operation simplicity and collision-free reliability. This intermediary layer automatically assigns and manages operational parameters, shielding users from complexity while ensuring collision-free operation through centralized parameter coordination and conflict resolution

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If LCIBs are configured without densely-deployed parameters, then device complexity is reduced, but interference prevention capability is insufficient

Engineering Contradiction:

Improveconfiguration complexityVSAvoidinterference

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent implements self-service by enabling LCIBs to automatically detect and adapt to their deployment environment. Each LCIB autonomously measures interference levels, identifies neighboring LCIBs, and adjusts its operational parameters without requiring manual configuration or complex centralized control, thereby maintaining low device complexity while achieving effective interference prevention

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent applies feedback mechanisms where LCIBs continuously monitor their operational environment including interference levels, signal quality, and neighboring LCIB performance. This feedback information is used to dynamically adjust operational parameters, creating a self-optimizing system that maintains low complexity through automated closed-loop control rather than complex preconfiguration

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9179324B1Method and system for operating densely-deployed low-cost internet base stations (LCIBs)

Publication Date: 2015.11.03 SPRINT SPECTRUM LLC

AI summary

Methods and systems are provided for operation of densely-deployed low-cost Internet base stations (LCIBs). In an embodiment, an LCIB controller determines that a plurality of LCIBs are densely deployed. The LCIB controller then selects respective densely-deployed operational parameters for each respective LCIB in the plurality. After selecting the respective parameters, the LCIB controller configures each respective LCIB in the plurality to operate according to the respective densely-deployed operational parameters.