Patent ID: 7808953

Claim:
A communication control method in a wireless communication system, in which a mobile station and a base station setup uplink and downlink channels between the mobile station and the base station, wherein the mobile station transmits a data flow setup in one of a plurality of transmission modes, the communication control method, comprising: determining, by the base station or a base station control unit to which the base station is connected, a transmission mode, among the plurality of the transmission modes, of the data flow and notifying the determined transmission mode to the mobile station by the base station or the base station control unit; interrupting transmission by the base station via the downlink channel with the mobile station for a predetermined transmission interruption time; determining in the mobile station, in a first transmission time interval, whether to transmit a packet by the mobile station based on the transmission mode of the data flow, wherein the mobile station determines whether packet transmission time by the mobile station in the first transmission time interval is at a time earlier by a predetermined time than the predetermined transmission interruption time, wherein the first transmission time interval is a packet transmission time interval, and an expected transmission time of an arrival confirmation signal transmitted from the base station, in response to any packet transmitted in the packet transmission time interval based on the transmission mode, partly or fully overlaps the predetermined transmission interruption time; transmitting the packet by the mobile station in response to the determining; transmitting by the base station the arrival confirmation signal corresponding to the packet; and determining whether to perform a re-transmission by the mobile station in response to the arrival confirmation signal based on the transmission mode of the data flow, wherein the mobile station determines the transmission mode for a data flow in transmission according to a ratio of the predetermined transmission interruption time to a predetermined time interval in the mobile station, wherein the transmission mode is determined to be the interrupt mode if the ratio of the predetermined transmission interruption time to the predetermined time interval is greater than a predetermined value.