Patent ID: 8391234
Filing Date: 2013-03-05
Classification: H04J,H04L,H04W

Abstract:
1. A wireless communication system comprising a base station, a mobile station connected to the base station via a network, and a correspondent station connected to the base station and the mobile station via the network, in which a certain range of frequency band is used for transmission and reception and a data communication frequency band to be used for data communication is set in the frequency band, wherein the base station comprises a sounding-reference-signal arrangement control unit that causes a sounding reference signal, which is used for observing a propagation path state in the frequency band and is transmitted from the mobile station to the base station, to be transmitted for each of frequency bandwidths obtained by dividing the frequency band into a plurality of frequency bands in a minimum control time of the data transmission and in a time width shorter than the minimum control time, determines an arrangement of the sounding reference signal in the minimum control time so that at least a part of transmission in the frequency bandwidth and transmission in another frequency bandwidth are executed at different times, and holds the arrangement as arrangement information, and the mobile station comprises a sounding-reference-signal transmission control unit that controls transmission of the sounding reference signal based on the arrangement information held in the sounding-reference-signal arrangement control unit.