Patent ID: 7876684
Filing Date: 2011-01-25
Classification: H04L,H04W

Abstract:
1. A data flow amount control device in a mobile communication system, which includes a plurality of mobile stations, a control station relaying packets to each of the plurality of mobile stations, and a base station temporarily storing the packets transmitted from the control station in a buffer and transmitting the packets to each of the plurality of mobile stations, comprising: a radio condition acquisition unit configured to acquire a radio condition of each of the plurality of mobile stations; a packet transmission frequency calculation unit configured to calculate a transmission frequency of the packets transmitted from the base station to each of the plurality of mobile stations; a packet transmission amount control unit configured to control a transmission amount of the packets transmitted from the control station to the base station, according to the radio condition of each of the plurality of mobile stations and the transmission frequency of the packets transmitted from the base station to each of the plurality of mobile stations; and a buffer storing amount calculation unit configured to calculate a buffer storing amount indicating an amount of the packets which are stored in the buffer of the base station and are waiting to be transmitted to each of the plurality of mobile stations, wherein the packet transmission amount control unit is configured to control the transmission amount of the packets transmitted from the control station to the base station, according to the radio condition of each of the plurality of mobile stations, the transmission frequency of the packets transmitted from the base station to each of the plurality of mobile stations, and a buffer storing estimated time indicating an estimated time during which the packets to each of the plurality of mobile stations are stored in the buffer.