Femto Node User Zone List for Wireless Search Optimization

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Solution Overview

Problem

The existing wireless communication systems face inefficiencies in searching for and reading system information from multiple femto nodes, leading to resource unavailability and prolonged search times for mobile units.

Innovation Solution

A method and apparatus for determining and storing communication interface types for access nodes in a user zone list, allowing for efficient identification and selection of preferred femto nodes by filtering out non-relevant nodes, thereby reducing search time and resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mobile units search for and read system information of multiple femto nodes, then comprehensive node information is obtained, but search time and resource consumption increase significantly

Engineering Contradiction:
Improvecomprehensive node informationVSAvoidsearch time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system pre-generates and stores a user zone list containing femto node information at a macro node before the mobile unit arrives. This preliminary preparation allows the mobile unit to quickly retrieve pre-filtered node information without performing exhaustive searches, thus reducing search time while maintaining comprehensive information availability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A macro node acts as an intermediary between the network and mobile units, consolidating and pre-processing femto node information. The macro node retrieves system information from multiple femto nodes, filters relevant data, and presents it to mobile units through a user zone list, eliminating the need for mobile units to directly search all femto nodes.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If mobile units search for and read system information of multiple femto nodes, then complete system information is acquired, but resource availability decreases

Engineering Contradiction:
Improvesystem information completenessVSAvoidresource availability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The macro node pre-retrieves and consolidates system information from multiple femto nodes before mobile units need it. This preliminary action ensures complete information is available when needed, while mobile unit resources remain available for other tasks during the information gathering process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The macro node serves as an intermediary that performs the resource-intensive information gathering and filtering tasks on behalf of mobile units. This transfers the resource burden from mobile units to the macro node, maintaining information completeness while preserving mobile unit resource availability for communication tasks.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If all femto nodes are included in the search, then no relevant nodes are missed, but identification efficiency decreases

Engineering Contradiction:
Improvenode identification completenessVSAvoididentification efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system extracts only the relevant femto node information from the complete set of available nodes and includes it in the user zone list. By taking out and presenting only the subset of nodes that are actually relevant to the user's location and service requirements, the system maintains identification completeness for relevant nodes while dramatically improving identification efficiency.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The user zone list provides locally optimized information tailored to the specific user's context and location. Rather than presenting all femto nodes uniformly, the system adapts the information set to local requirements, including only nodes that are relevant to that particular user zone, thus improving identification efficiency without sacrificing completeness of relevant information.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8983451B2Wireless communication systems with femto nodes
Publication Date: 2015.03.17 QUALCOMM INC
  • US8983451B2 patent drawing
  • US8983451B2 patent drawing
  • US8983451B2 patent drawing

AI summary

Systems and methods for storing information in a user zone list are described herein. According to the systems and methods herein, the user zone list includes multiple user zone files and the user zone files include information regarding a communication interface type.