Patent ID: 8031585
Filing Date: 2011-10-04
Classification: H04B,H04L

Abstract:
1. A communication apparatus comprising: a transmitter having a plurality of transmitting units configured to perform data transmission, each transmitting unit including a synchronization unit configured to synchronize the transmitting units, an Space-Time Block Code (STBC) test unit configured to divide an input signal to produce a plurality of STBC signals in order to perform an STBC test, and a controlling unit configured to perform a setting to a test mode, wherein in the test mode, the transmitting units are combined to transmit an STBC signal; and a receiver configured to receive the STBC signal, wherein, in the test mode, the STBC test unit divides an input signal into a predetermined number of signals, and produces the predetermined number of STBC signals having added thereto complex conjugate data needed when a receiver side recombines the STBC signals being the result of the division, and the predetermined number of STBC signals are simultaneously transmitted in a manner synchronized with each other from the plurality of the transmitting units via respective STBC test units of the transmitting units.