Femtocell Automatic Provisioning for Seamless Handoff
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Solution Overview
Problem
Femtocells require manual setup and configuration, which is inefficient and often requires technical expertise, making it difficult to establish seamless handoffs between macro and femto base stations, leading to potential interference and suboptimal service.
Innovation Solution
An automated provisioning method for femtocells that includes transmitting location, capability, and measurement information to a service provider to receive operational parameters such as handoff thresholds and power settings, allowing for efficient handoffs and reduced interference between macro and femto base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual setup and configuration is used for femtocells, then technical expertise is required and setup is complex, but automation extent is low
Solution Approach 1:
The femtocell base station automatically performs provisioning by transmitting its own identification information, capability information, and measured signal strength parameters to the service provider, which then automatically configures handoff parameters and operational settings without requiring manual technician intervention
Solution Approach 2:
The system performs preliminary measurements of macro base station signal strength and transmits this information to the service provider before actual operation begins, allowing the service provider to pre-calculate and provision appropriate handoff parameters in advance
2Productivity
If manual configuration is used for handoff parameters, then setup time is long and requires expertise, but handoff efficiency is improved
Solution Approach 1:
The femtocell base station measures the actual signal strength of neighboring macro base stations and transmits this measured information to the service provider, which uses this feedback to automatically determine and provision optimal handoff parameters that are tailored to the specific deployment environment
Solution Approach 2:
The service provider automatically adjusts handoff parameters such as drop thresholds and hysteresis values based on the transmitted measurement information and location data, dynamically optimizing these parameters for each specific femtocell deployment without manual intervention
3Extent of automation
If automated provisioning is implemented, then setup time is reduced and automation is improved, but measurement precision requirements increase
Solution Approach 1:
The femtocell base station performs signal strength measurements of macro base stations during the initialization phase before service activation, transmitting these preliminary measurement results to the service provider so that handoff parameters can be pre-calculated based on actual measured conditions rather than theoretical values
Data Source
AI summary
Automatic provisioning of an access point base station or femtocell. The method may include the femtocell transmitting first information (e.g., location information, signal measurement information, capability information, etc.) to a service provider (e.g., over an IP network). The femtocell may receive second information from the service provider, where the second information includes one or more operational parameters. The operational parameters may include hand-off parameters, admission policy parameters, PN or scrambling codes, power parameters, and/or other parameters. The femtocell may operate according to the received parameters to provide access for a plurality of access terminals in a local area.