Femto cell signaling gating

摘要

Signaling in a femto cell access point is managed. A pilot signal power profile, or pilot signal gating, determines transmitted a time-dependent pilot signal power. The power profile displays a duty cycle well below 100% and a power depth, which is the amplitude between maximum and minimum pilot signal power, determined partially upon radio link conditions. The time-dependent power profile can be established through a schedule based at least in part on attachment data or subscriber input; machine-learning method facilitate inferring the schedule. Pilot signal gating profile can be reused in a femto cell deployment to broaden femto cell identification and thus facilitate macro-to-femto handover. Activating/deactivating pilot signal in a femto cell in the scheduled and synchronized manner provided herein leads to macro-femto interference mitigation and mobility improvement(s), and improved battery life of wireless devices that operate in a wireless environment that includes femto cells.

主权项

1. A femtocell device, comprising:
a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
determining a duty cycle schedule for a pilot signal of the femtocell device based on a history of attachment events between a macro cell device and the femtocell device;determining a threshold slope of a change in power over time for the pilot signal, wherein a first rate of change associated with the threshold slope satisfies a defined slope function that mitigates an induced interference condition in a wireless environment in which the femtocell device operates; andchanging a power of the pilot signal over time at a second rate of change that is not greater than the first rate of change, wherein the changing the power is in accordance with the duty cycle schedule.