Automatic Neighboring Cell Optimization via Unidentified PCI Detection

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Solution Overview

Problem

Current CDMA systems require manual operation for large-scale neighboring cell optimization, which is inefficient due to large data processing requirements and low tool efficiency, affecting network performance.

Innovation Solution

A method and system for automatic neighboring cell optimization in CDMA networks, where a base station detects unidentified physical identifiers, obtains global cell identities, and sends information to update neighboring cell lists, leveraging overlay networking to reduce manual intervention and enhance efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual operation is used for large-scale neighboring cell optimization, then optimization can be performed with existing tools, but the efficiency is low and time-consuming due to large data processing requirements

Engineering Contradiction:
Improveneighboring cell optimization efficiencyVSAvoidoptimization time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system enables self-service by allowing base stations to automatically detect unidentified PNs, query their identities, and update neighboring cell lists without manual intervention. The base station autonomously processes the optimization workflow, transforming a manual task into an automated self-service process that significantly improves efficiency and reduces time loss.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention implements preliminary action by proactively detecting unidentified PNs and querying their identities before they cause handoff failures. The system performs advance optimization by continuously monitoring and updating neighboring cell lists, preventing problems rather than reacting to them, thereby improving overall optimization efficiency and reducing corrective maintenance time.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If background neighboring cell optimization tool is used, then optimization can be performed, but the tool efficiency is low when processing large-sized data

Engineering Contradiction:
Improveoptimization throughputVSAvoiddata processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention segments the optimization process into distinct functional modules: PN detection by base station, identity querying by network management system, and list updating by base station. This segmentation distributes data processing across multiple components, reducing the burden on any single tool and improving overall throughput while managing complexity through modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention replaces the manual mechanical operation of background optimization tools with an automated electronic system. Base stations automatically detect PNs and trigger optimization workflows, substituting human-operated mechanical processes with electronic automation, thereby increasing throughput and reducing the relative complexity of handling large datasets.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If neighboring cell list is not properly configured, then handoff can occur, but network performance is affected due to un-configured or improperly prioritized neighboring cells

Engineering Contradiction:
Improvehandoff success rateVSAvoidneighboring cell configuration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention implements feedback by continuously monitoring handoff performance and detecting unidentified PNs during actual handoff attempts. This feedback loop provides real-time information about configuration deficiencies, allowing the system to automatically query and update neighboring cell lists, thereby improving handoff success rate while simplifying configuration management through automated correction.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables self-service by allowing base stations to automatically detect configuration problems through PN detection, query the correct neighboring cell information, and update their own neighboring cell lists without manual intervention. This self-service capability improves reliability by ensuring accurate configuration while maintaining ease of operation through automation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9143993B2Method for optimizing neighboring cell, base station and system
Publication Date: 2015.09.22 HUAWEI TECH CO LTD
  • US9143993B2 patent drawing
  • US9143993B2 patent drawing
  • US9143993B2 patent drawing

AI summary

Embodiments of the present invention provide a method for optimizing a neighboring cell, a base station, and a system. The method includes: detecting, by the base station corresponding to the second cell, that a terminal in the second cell reports an unidentified physical identifier PCI; and obtaining a global cell identity GCI corresponding to the unidentified PCI, and determining that a cell corresponding to the GCI is an un-configured neighboring cell of the first cell; and sending, by the base station corresponding to the second cell, information about the un-configured neighboring cell to a base station BSS or an operations support system OSS, which is corresponding to the first cell, so that the BSS or OSS obtains the un-configured neighboring cell of the first cell according to the information of the un-configured neighboring cell, and adds the un-configured neighboring cell to a neighboring cell list of the first cell.