TRANSMITTING SPREAD SIGNAL IN COMMUNICATION SYSTEM
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Abstract
The present invention provides for transmitting a spread signal in a mobile communication system. The present invention includes spreading a signal using a plurality of spreading codes, wherein the plurality of spreading codes have a spreading factor, multiplexing the spread signal by code division multiplexing, transmitting the multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a first antenna set, and transmitting the same multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a second antenna set.
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Citations
48 Claims
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1-20. -20. (canceled)
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21. A method for transmitting Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system, the method comprising:
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spreading the ACK/NACK information using an orthogonal sequence with a spreading factor of 4; and transmitting first spread ACK/NACK information on four available neighboring subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol via multiple antennas, wherein the first spread ACK/NACK information exists on the four available neighboring subcarriers of the multiple antennas in a form as shown in Table 1 or 2; - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method for receiving Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system, the method comprising:
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receiving first spread ACK/NACK information on four available neighboring subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol, the first spread ACK/NACK information being transmitted from a transmitting end via multiple antennas, wherein the first spread ACK/NACK information originates from spread of the ACK/NACK information using an orthogonal sequence with a spreading factor of 4, wherein the first spread ACK/NACK information exists on the four available neighboring subcarriers of the multiple antennas in a form as shown in Table 1 or 2; - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An apparatus configured to transmit Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system, the apparatus comprising:
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a radio frequency unit; and a processor, wherein the processor is configured to spread the ACK/NACK information using an orthogonal sequence with a spreading factor of 4, and to transmit first spread ACK/NACK information on four available neighboring subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol via multiple antennas, wherein the first spread ACK/NACK information exists on the four available neighboring subcarriers of the multiple antennas in a form as shown in Table 1 or 2; - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. An apparatus configured to receive Acknowledgement/Negative acknowledgement (ACK/NACK) information in a mobile communication system, the apparatus comprising:
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a radio frequency unit; and a processor, wherein the processor is configured to receive first spread ACK/NACK information on four available neighboring subcarriers in an orthogonal frequency division multiplexing (OFDM) symbol, the first spread ACK/NACK information being transmitted from a transmitting end via multiple antennas, wherein the first spread ACK/NACK information originates from spread of the ACK/NACK information using an orthogonal sequence with a spreading factor of 4, wherein the first spread ACK/NACK information exists on the four available neighboring subcarriers of the multiple antennas in a form as shown in Table 1 or 2; - View Dependent Claims (43, 44, 45, 46, 47, 48)
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Specification