Patent ID: 9565614
Date: 2017-02-07
CPC Classifications: H04W

Claim:
1. A method for controlling handoff of a mobile terminal, the method comprising the steps of: generating a handoff map including information on a neighboring base station located around a base station from identifiers of and position information on attached terminals located at a cell area of the base station, which are received from the attached terminals, and information on the neighboring base station, which is received by the attached terminals from the neighboring base station; if the base station receives a handoff request message from an attached mobile terminal moving to the neighboring base station among the attached terminals, determining a handoff neighboring base station to which the attached mobile terminal is handed off based on the generated handoff map and information on the movement of the attached mobile terminal in response to the handoff request message; allowing the base station to generate a handoff response message including the determined handoff neighboring base station, and to transmit the generated handoff response message to the attached mobile terminal; and if the base station receives a handoff indication message from the attached mobile terminal after the attached mobile terminal has been handed off to the neighboring base station based on the handoff response message, blocking a communication with the attached mobile terminal in response to the received handoff indication message, wherein the information on the neighboring base station is at least one from among position information on the neighboring base station, an identifier of the neighboring base station, and information on an available channel used by the neighboring base station, wherein the base station and the neighboring base station, and the attached terminals of the base station and the neighboring base station include a GPS module, respectively, and the position information on the neighboring base station is acquired by the GPS module, wherein the determining the handoff neighboring base station comprises: wherein if a plurality of neighboring base stations are located in the moving direction of the attached mobile terminal, the plurality of neighboring base stations are determined to be the handoff neighboring base stations, and wherein if the plurality of neighboring base stations are determined to be the handoff neighboring base stations, the attached mobile terminal is handed off to a handoff neighboring base station which transmits a beacon message having the highest signal strength among the signal strengths of beacon messages transmitted thereto from the plurality of neighboring base station determined to be the handoff neighboring base station.