Femtocell Registration Management via Macro RF Signal Classification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Service provider networks experience degradation in quality of service due to overload when a large number of wireless communication devices simultaneously attempt to register, leading to inefficient processing of registration requests.
Innovation Solution
Implementing a method at the core network device to classify radio frequency signals from macro base stations and determine whether to accept or drop registration requests from femtocell base stations based on signal coverage, capacity, and activity levels, with thresholds for decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the service provider network processes all registration requests simultaneously, then all devices can be registered with the network, but the network becomes overloaded and quality of service degrades
Solution Approach 1:
The system performs preliminary classification of RF signals and determination of registration request fate (accept/drop) before the core network processes the actual registration requests. This preliminary filtering action prevents overload from occurring in the first place, rather than dealing with it after it happens.
Solution Approach 2:
The femtocell base station acts as an intermediary between wireless devices and the core network. It classifies macro RF signals, determines whether to accept or drop registration requests, and only forwards acceptable requests to the core network, thereby protecting the network from overload.
2Adaptability or versatility
If the service provider network accepts all registration requests, then device connectivity is maximized, but signaling overload occurs and processing efficiency decreases
Solution Approach 1:
The system changes the parameter of registration request handling by introducing classification based on RF signal conditions and femtocell activity levels. Instead of uniformly accepting or dropping all requests, the system dynamically adjusts acceptance decisions based on measured parameters, reducing signaling load while maintaining necessary connectivity.
3Reliability
If the femtocell base station forwards all registration requests to the core network, then all devices can connect, but the core network experiences overload
Solution Approach 1:
The harmful element (excessive registration requests causing overload) is extracted from the system by filtering them out at the femtocell base station. The classification and acceptance/determination logic removes problematic requests before they reach the core network, allowing only necessary requests to pass through.
Data Source
AI summary
Methods and systems for using coverage or capacity classifications regarding a macro RF network to manage registration of femtocells with a service provider network (SPN) so as to avoid signaling overload are described herein. After a wide-scale power outage within an area where multiple femtocells are located, the femtocells can power on and attempt to register with the SPN at about the same time. The femtocells can scan RF signals received from the macro network and classify the received RF signals with respect to capacity or coverage of the macro network at the time of transmitting the RF signals. A device within the SPN can determine whether classification of the received RF signals is associated with dropping or accepting a registration request associated with the classified RF signals. The SPN device can accept the registration request or drop the registration request and request the femtocell to transmit another registration request.