Method for transmitting control signal using efficient multiplexing
First Claim
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1. A method for transmitting, by a base station, acknowledgement/non-acknowledgment (ACK/NACK) information, the method comprising:
- receiving, by the base station, multiple uplink transmissions; and
transmitting, by the base station, an ACK/NACK group through each of a fixed number of multiple resource sets in a subframe,wherein the ACK/NACK group contains multiple ACK/NACKs associated with the uplink multiple transmissions, using orthogonal codes which distinguish the multiple ACK/NACKs from each other,wherein each of the fixed number of multiple resource sets occupies a predetermined number of subcarriers and one orthogonal frequency division multiplexing (OFDM) symbol,which the fixed number of multiple resource sets are separate from each other along a frequency axis in the subframe,wherein the fixed number of multiple resource sets are distributed within one or multiple OFDM symbols in the subframe,wherein the fixed number is larger than two, andwherein, when two OFDM symbols are used for the ACK/NACK group in the subframe, the fixed number of multiple resource sets are distributed across the two OFDM symbols alternately along the frequency axis in the subframe.
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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-hit 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.
110 Citations
20 Claims
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1. A method for transmitting, by a base station, acknowledgement/non-acknowledgment (ACK/NACK) information, the method comprising:
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receiving, by the base station, multiple uplink transmissions; and transmitting, by the base station, an ACK/NACK group through each of a fixed number of multiple resource sets in a subframe, wherein the ACK/NACK group contains multiple ACK/NACKs associated with the uplink multiple transmissions, using orthogonal codes which distinguish the multiple ACK/NACKs from each other, wherein each of the fixed number of multiple resource sets occupies a predetermined number of subcarriers and one orthogonal frequency division multiplexing (OFDM) symbol, which the fixed number of multiple resource sets are separate from each other along a frequency axis in the subframe, wherein the fixed number of multiple resource sets are distributed within one or multiple OFDM symbols in the subframe, wherein the fixed number is larger than two, and wherein, when two OFDM symbols are used for the ACK/NACK group in the subframe, the fixed number of multiple resource sets are distributed across the two OFDM symbols alternately along the frequency axis in the subframe. - View Dependent Claims (2, 3, 4, 5)
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6. A method for receiving, by a user equipment, acknowledgement/non-acknowledgment (ACK/NACK) information, the method comprising:
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transmitting, by the user equipment, an uplink transmission; and receiving, by the user equipment, an ACK/NACK group through each of a fixed number of multiple resource sets in a subframe, wherein the ACK/NACK group contains multiple ACK/NACKs associated with multiple uplink transmissions including the uplink transmission of the user equipment, using orthogonal codes which distinguish the multiple ACK/NACKs from each other, wherein each of the fixed number of multiple resource sets occupies a predetermined number of subcarriers and one orthogonal frequency division multiplexing (OFDM) symbol, which the fixed number of multiple resource sets are separate from each other along a frequency axis in the subframe, wherein the fixed number of multiple resource sets are distributed within one or multiple OFDM symbols in the subframe, wherein the fixed number is larger than two, and wherein, when two OFDM symbols are used for the ACK/NACK group in the subframe, the fixed number of multiple resource sets are distributed across the two OFDM symbols alternately along the frequency axis in the subframe. - View Dependent Claims (7, 8, 9, 10)
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11. A base station for transmitting acknowledgement/non-acknowledgment (ACK/NACK) information, the base station comprising:
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a receiver configured to receive multiple uplink transmissions; and a transmitter configured to transmit an ACK/NACK group through each of a fixed number of multiple resource sets in a subframe, wherein the ACK/NACK group contains multiple ACK/NACKs associated with the multiple transmissions, using orthogonal codes which distinguish the multiple ACK/NACKs from each other, wherein each of the fixed number of multiple resource sets occupies a predetermined number of subcarriers and one orthogonal frequency division multiplexing (OFDM) symbol, which the fixed number of multiple resource sets are separate from each other along a frequency axis in the subframe, wherein the fixed number of multiple resource sets are distributed within one or multiple OFDM symbols in the subframe, wherein the fixed number is larger than two, and wherein, when two OFDM symbols are used for the ACK/NACK group in the subframe, the fixed number of multiple resource sets are distributed across the two OFDM symbols alternately along the frequency axis in the subframe. - View Dependent Claims (12, 13, 14, 15)
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16. A user equipment for receiving acknowledgement/non-acknowledgment (ACK/NACK) information, the user equipment comprising:
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a transmitter configured to transmit an uplink transmission; and a receiver configured to receive an ACK/NACK group through each of a fixed number of multiple resource sets in a subframe, wherein the ACK/NACK group contains multiple ACK/NACKs associated with multiple uplink transmissions including the uplink transmission of the user equipment, using orthogonal codes which distinguish the multiple ACK/NACKs from each other, wherein each of the fixed number of multiple resource sets occupies a predetermined number of subcarriers and one orthogonal frequency division multiplexing (OFDM) symbol, which the fixed number of multiple resource sets are separate from each other along a frequency axis in the subframe, wherein the fixed number of multiple resource sets are distributed within one or multiple OFDM symbols in the subframe, wherein the fixed number is larger than two, and wherein, when two OFDM symbols are used for the ACK/NACK group in the subframe, the fixed number of multiple resource sets are distributed across the two OFDM symbols alternately along the frequency axis in the subframe. - View Dependent Claims (17, 18, 19, 20)
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Specification