Patent ID: 8018984

Claim:
An apparatus configured to transmit a spread signal in a mobile communication system, the apparatus comprising: a plurality of antennas; a radio frequency unit; and a processor, wherein the processor is configured to: spread a first signal using a plurality of spreading codes, having a spreading factor, multiplex the first spread signal, transmit the first multiplexed signal via a plurality of neighboring frequency resources of an orthogonal frequency division multiplexing (OFDM) symbol of a first antenna set, spread a second signal using a plurality of spreading codes, having a spreading factor, multiplex the second spread signal, transmit the second multiplexed signal via a plurality of neighboring frequency resources of the OFDM symbol of the first antenna set, transmit a third multiplexed signal via a plurality of neighboring frequency resources of an OFDM symbol of a second antenna set, wherein the third multiplexed signal carries the same information as the first multiplexed signal, and transmit a fourth multiplexed signal via a plurality of neighboring frequency resources of the OFDM symbol of the second antenna set, wherein the fourth multiplexed signal carries the same information as the second multiplexed signal, wherein the first multiplexed signal is transmitted on frequency resources that neighbor frequency resources on which the second multiplexed signal is transmitted, and wherein the third multiplexed signal is transmitted on frequency resources that neighbor frequency resources on which the fourth multiplexed signal is transmitted.