Apparatus and method for providing handover information within femtocell network and terminal using the same

摘要

Disclosed herein are an apparatus for providing handover information within a femtocell network, and a terminal using the same. The apparatus includes an expected stay time calculation unit, a handover target selection unit, and a handover information provision unit. The expected stay time calculation unit, for a terminal located within serving coverage range of a serving base station, calculates expected stay time, that is, a time for which the terminal will stay within a femtocell coverage range of each of the femtocell base stations. The handover target selection unit selects a handover target from among the femtocell base stations based on the calculated expected stay time. The handover information provision unit provides the terminal with handover information including the selected handover target.

主权项

1. An apparatus for providing handover information within a femtocell network, comprising:
an expected stay time calculation unit configured to, for a terminal located within a serving coverage range of a serving base station, calculate expected stay time, that is, a time for which the terminal will stay within a femtocell coverage range of each of a plurality of femtocell base stations, based at least partly on the femtocell coverage range of each of the plurality of femtocell base stations, a distance between the terminal and each of the plurality of femtocell base stations, an angle between a direction of movement of the terminal and a segment that connects the terminal with each of the plurality of femtocell base stations, and a speed of movement of the terminal; a handover target selection unit configured to select a handover target from among the femtocell base stations based on the calculated expected stay time; and a handover information provision unit configured to provide the terminal with handover information including the selected handover target; wherein the expected stay time calculation unit comprises a femtocell information calculation unit configured to calculate a location of the femtocell base station based on three or more macro cell base stations near the femtocell base station using a least square method.