Dynamic Base Station Neighbor List Creation
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Solution Overview
Problem
Emergency response organizations face communication disruptions due to damaged infrastructure and increased traffic loads during emergencies, and existing methods for creating base station neighbor lists are labor-intensive and quickly become outdated in mobile wireless networks.
Innovation Solution
A method for dynamically creating and updating base station neighbor lists using geographic locations, network status information, and pilot signal strength measurement feedback, which are prioritized and distributed to user devices for handoff decisions, enabling efficient resource allocation and network adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If base station neighbor lists are created manually, then the neighbor list can be created with initial accuracy, but the process is labor-intensive and the lists quickly become outdated in mobile wireless networks
Solution Approach 1:
The patent implements dynamic neighbor list creation where base stations automatically update their neighbor lists based on real-time measurements of pilot signal strengths from mobile devices. This transforms the static manual update process into a dynamic self-updating system that adapts to network changes, resolving the contradiction between initial accuracy and update timeliness.
Solution Approach 2:
The system uses feedback from mobile devices that measure and report pilot signal strengths from neighboring base stations. This feedback mechanism enables automatic detection of network changes and triggers neighbor list updates only when necessary, maintaining accuracy while minimizing unnecessary updates and resource consumption.
2Reliability
If mobile devices search for all possible base stations during handoff, then complete coverage is ensured, but resource consumption increases enormously
Solution Approach 1:
The patent segments the complete set of possible base stations into a focused neighbor list containing only relevant candidates. Mobile devices receive pre-filtered neighbor lists from base stations, reducing the search space from all possible base stations to only those likely to be suitable for handoff, thereby reducing resource consumption while maintaining reliability.
Solution Approach 2:
Base stations perform preliminary analysis and pre-calculate neighbor lists before mobile devices need them for handoff. By preparing the neighbor list in advance based on network conditions and geographic information, the system eliminates the need for mobile devices to perform exhaustive searches, reducing their resource consumption while ensuring complete coverage.
3Adaptability or versatility
If base stations are mobile, then network flexibility and deployability improve, but neighbor lists change more often requiring frequent updates
Solution Approach 1:
The patent implements a self-service mechanism where base stations automatically monitor network conditions, detect changes in their neighbor relationships, and update their own neighbor lists without external intervention. This self-updating capability simplifies management complexity while supporting mobile base stations that frequently change positions.
Solution Approach 2:
The system uses continuous feedback from pilot signal strength measurements to detect when neighbor relationships change. When changes are detected, the system automatically triggers updates to neighbor lists, enabling the network to adapt to mobile base stations while keeping management complexity low through automated detection and response.
Data Source
AI summary
The invention includes a method and apparatus for creating a base station neighbor list at a target base station in a wireless network including a plurality of base stations. A method includes obtaining information for creating the base station neighbor list, creating the base station neighbor list using the obtained information, and storing the base station neighbor list. The obtained information includes at least one of geographic locations of ones of the base stations, network status information associated with the wireless network, and pilot signal strength measurement feedback information. The base station neighbor list includes a subset of the base stations of the network. The base stations of the base station neighbor list may be prioritized using at least a portion of the obtained information. The base station neighbor list may be updated periodically, or in response to changes to the obtained information. The base station neighbor list is distributed from the base station to wireless user devices served by the base station for use by the wireless user devices in making handoff decisions.