TERMINAL, A METHOD FOR HANDOVER THEREOF IN AN ENVIRONMENT WHERE PLURAL FEMTO CELLS ARE OVERLAPPED WITH MACRO CELLS, AND A SUPPORTING METHOD FOR THE HANDOVER OF A BASE STATION

摘要

PURPOSE: A terminal, a method for handover thereof, and a supporting method for the handover of a base station are provided to minimize information broadcasted from a macro base station to a terminal and to reduce a load in searching for cells by the terminal when the terminal is handed over from macro cells to femto cells under an environment in which the plurality of femto cells are overlapped with the macro cells.;CONSTITUTION: A base station(100) manages a macro cell(10). The macro cell includes a plurality of femto cells(21-24) that are managed by a plurality of femto base stations(210-240). A femto base station(200) manages a femto cell and is installed in a shadowing area where a radio wave from other cells is degraded. The base station and the femto cell are not limited to the dictionary definition of femto, but is a term that covers both a micro base station having a name in a larger unit or a smaller unit and a micro cell. The femto cell is divided into private femto cells and public femto cells. The private femto cells may be called a CSG(Closed Subscriber Group) and are femto cells in which objects that are capable of transmitting and receiving data through the corresponding femto cell are previously set. The private femto cells include an accessible private femto cell that can transmit and receive data through a corresponding femto cell and an inaccessible private femto cell. The public femto cells are called a public subscriber group, and are femto cells in which objects that are capable of transmitting and receiving data through the corresponding femto cell are not previously set, and thus the public femto cells are permitted for all the terminals. Meanwhile, the plurality of femto cells may be divided into a plurality of femto groups. A terminal(300) is an end point of a radio channel, and is connected to the femto base station or the macro base station to transmit and receive data.;COPYRIGHT KIPO 2010