Patent ID: 8018987

Claim:
A method for receiving a spread signal in a mobile communication system, the method comprising: receiving a first multiplexed signal via a plurality of neighboring frequency resources of an orthogonal frequency division multiplexing (OFDM) symbol, the first multiplexed signal being transmitted from a first antenna set of a transmitting end, wherein the first multiplexed signal is multiplexed from first spread signals by using code division multiplexing at the transmitting end, wherein the first spread signals are spread by using a plurality of spreading codes at the transmitting end, the plurality of spreading codes having a spreading factor, receiving a second multiplexed signal via a plurality of neighboring frequency resources of the OFDM symbol, the second multiplexed signal being transmitted from the first antenna set of the transmitting end, wherein the second multiplexed signal is multiplexed from second spread signals by using code division multiplexing at the transmitting end, wherein the second spread signals are spread by using a plurality of spreading codes at the transmitting end, the plurality of spreading codes having a spreading factor; receiving a third multiplexed signal via a plurality of neighboring frequency resources of an OFDM symbol, the third multiplexed signal being transmitted from a second antenna set of a transmitting end, wherein the third multiplexed signal carries same information as the first multiplexed signal; and receiving a fourth multiplexed signal via a plurality of neighboring frequency resources of the OFDM symbol, the fourth multiplexed signal being transmitted from the second antenna set of the transmitting end, wherein the fourth multiplexed signal carries same information as the second multiplexed signal, wherein the first multiplexed signal is transmitted on frequency resources that neighbor frequency resources that the second multiplexed signal is transmitted on, and wherein the third multiplexed signal is transmitted on frequency resources that neighbor frequency resources that the fourth multiplexed signal is transmitted on.