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A field trial was conducted to show that automatic neighbor relation (ANR) works successfully in a real-life environment. ANR is utilized to automatically generate information in neighbor relation tables for handovers. Solutions for problematic handover scenarios and self-optimization of relevant handover parameters are also discussed.

A study was conducted to address femtocell issues through the use of a dynamic idle mode procedure that allows femtocell transmissions and most processing to be completely switched off when not supporting an active call. Some of these concerns include the additional energy consumption caused by femtocells and the continuous pilot transmissions.

Self-optimization methods for residential femtocell coverage that reduce mobility events on the core network signalling load are investigated. The performance of mu lti-element antenna solutions and those of single antenna solutions are compared.

This article discusses a user-deployed femtocell solution based on the base station router flat Internet Protocol cellular architecture for designing femtocell networks. This allows operators to introduce high-speed services, explore new markets and pricing strategies to capture wireline voice minutes thereby increasing their revenue.

Use of an entropy-based?complexity metric for investigating and manipulating the self-organizing behavior of fourth-generation (4G) wireless networks is described and discussed.