Patent ID: 8385467
Filing Date: 2013-02-26
Classification: H04B,H04J,H04L

Abstract:
1. An information transmission method performed by a transmitter in a radio communication system, the information transmission method comprising: generating first and second symbols; generating first and second transmit vectors on the basis of an Alamouti code from the first and second symbols; and transmitting the first transmit vector through a first antenna and transmitting the second transmit vector through a second antenna, wherein the first transmit vector consists of a first transmit symbol and a second transmit symbol, the first transmit symbol is transmitted based on a first resource index, and the second transmit symbol is transmitted based on a second resource index, wherein the second transmit vector consists of a third transmit symbol and a fourth transmit symbol, the third transmit symbol is transmitted based on the first resource index, and the fourth transmit symbol is transmitted based on the second resource index, and wherein the first transmit symbol is generated based on the first symbol, the second transmit symbol is generated based on the second symbol, the third transmit symbol is obtained by appending a negative sign to a complex conjugate of the second transmit symbol, and the fourth transmit symbol is a complex conjugate of the first transmit symbol.