Patent ID: 7474898
Filing Date: 2009-01-06
Classification: H01Q,H04W

Abstract:
1. A mobile station that travels to a traveling direction at a traveling speed and communicates from an own position through an antenna with a plurality of base stations forming a communications network, comprising: own position detecting means for detecting an own position based on Global Positioning System signals obtained via a receiver; map data storing means for storing map data; approaching position predicting means for predicting an approaching position based on information including the detected own position and the stored map data; transmitting means for transmitting, to any one of the base stations, a state parameter that includes at least position-specifying information that specifies the own position detected by the own position determining means; receiving means for receiving, from any one of the base stations, an antenna control parameter for controlling antenna directionality of the antenna, wherein the antenna control parameter is computed, based on the state parameter, in the communications network; antenna controlling means for controlling, based on the received antenna control parameter, the antenna directionality for aiming at a given base station of the base stations so as to increase signal strength of a reception signal from the given base station; and amending means for amending the antenna control parameter based on the approaching position predicted by the approaching position predicting means.