Patent ID: 7480341
Filing Date: 2009-01-20
Classification: H04B,H04L

Abstract:
1. A transmitter of a multiple input and multiple output antenna (MIMO) system using an adaptive modulation and coding (AMC) scheme, the transmitter comprising: an AMC determiner in which a total transmission power and a maximum modulation order are preset, for receiving MIMO equivalent channel information fed back from a receiver, determining an AMC level to be used in a transmit (Tx) antenna using the total transmission power, the modulation order, and the MIMO equivalent channel information, and generating AMC level information; an ordering selector in which the total transmission power and the maximum modulation order are preset, for receiving the MIMO equivalent channel information fed back from the receiver, and generating ordering policy information to be used in the receiver using the total transmission power, the modulation order, and the MIMO equivalent channel information; a signal selector for receiving the AMC level information from the AMC determiner and the ordering policy information from the ordering selector, transmitting data signals at a data signal transmission interval, and transmitting the ordering policy information and the AMC level information at a control information transmission interval; and an adaptive modulator for modulating the ordering policy information and the AMC level information into predefined specific AMC level, and adaptively modulating the data signals according to the AMC level information.