Patent ID: 8817727
Filing Date: 2014-08-26
Classification: H04W

Abstract:
1. An on-board wireless communication apparatus for performing wireless communication using an orthogonal frequency division multiple access (OFDMA) scheme, comprising: a position information acquisition unit which estimates a position after a predetermined time period based on base station position information indicating a position of a base station, mobile station position information indicating a present position of the mobile station, and speed information indicating a moving speed of the mobile station, and outputs the resultant as estimated mobile station position information; a transmission path information storage unit which determines a transmission rate to be applied based on the estimated mobile station position information from the position information acquisition unit and a distribution of the transmission rate determined by a distance from the base station; a reception buffer unit which stores received data; a reception buffer amount adjustment unit which determines a data amount which needs to be received on the basis of a data storage amount sent from the reception buffer unit and a type of the data stored in the reception buffer unit; and a band allocation unit which determines a band to be requested to the base station based on the transmission rate sent from the transmission path information storage unit and the data amount sent from the reception buffer amount adjustment unit.