Method for transmitting control signal using efficient multiplexing
First Claim
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1. A method of transmitting ACK/NACK signals, the method comprising:
- repeating each of the ACK/NACK signals by N times, wherein N is a predetermined natural number greater than 1;
multiplexing i-th bits, each of the i-th bits being from the repeated ACK/NACK signals respectively, within an i-th time-frequency domain by a Code Division Multiple Access (CDMA) scheme, wherein i=1, 2, . . . , N, and the i-th time-frequency domains, each of which is for i=1, 2, . . . , N, respectively, are different from each other; and
transmitting the multiplexed ACK/NACK signals,wherein the ACK/NACK signals are discriminated by orthogonal or pseudo-orthogonal codes used for multiplexing of each of the ACK/NACK signals.
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Abstract
A method of transmitting a control signal using efficient multiplexing is disclosed. The present invention includes the steps of multiplexing a plurality of 1-bit control signals within a prescribed time-frequency domain by code division multiple access (CDMA) and transmitting the multiplexed control signals, wherein a plurality of the 1-bit control signals include a plurality of the 1-bit control signals for a specific transmitting side. Accordingly, reliability on 1-bit control signal transmission can be enhanced.
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Citations
5 Claims
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1. A method of transmitting ACK/NACK signals, the method comprising:
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repeating each of the ACK/NACK signals by N times, wherein N is a predetermined natural number greater than 1; multiplexing i-th bits, each of the i-th bits being from the repeated ACK/NACK signals respectively, within an i-th time-frequency domain by a Code Division Multiple Access (CDMA) scheme, wherein i=1, 2, . . . , N, and the i-th time-frequency domains, each of which is for i=1, 2, . . . , N, respectively, are different from each other; and transmitting the multiplexed ACK/NACK signals, wherein the ACK/NACK signals are discriminated by orthogonal or pseudo-orthogonal codes used for multiplexing of each of the ACK/NACK signals. - View Dependent Claims (2, 3, 4)
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5. A method of transmitting signals, the method comprising:
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generating N bit control signals by repeating each of ACK/NACK signals; multiplexing i-th bits, each of the i-th bits being from the N bit control signals respectively, within an i-th time-frequency domain by a Code Division Multiple Access (CDMA) scheme, wherein i=1, 2, . . . , N, and the i-th time-frequency domains, each of which is for i=1, 2, . . . , N, respectively, are different from each other; and transmitting the multiplexed N bit control signals, wherein the ACK/NACK signals are discriminated by orthogonal or pseudo-orthogonal codes used for multiplexing each bits from the N bit control signals, and wherein a number of ACK/NACK signals is twice as many as a size of the orthogonal or pseudo-orthogonal codes.
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Specification