Methods for multiplexing scheduling request information and HARQ ACK/NACK information while transmitting and receiving PUCCH and apparatuses thereof
Disclosed is a method of multiplexing and transmitting/receiving scheduling request (SR) information and HARQ ACK/NACK information through short PUCCH (sPUCCH) consisting two or three symbols when an uplink control channel is transmitted. A method of a terminal transmitting the uplink control channel includes configuring i) first uplink control channel resources for indicating only the HARQ ACK/NACK information and ii) second uplink control channel resources for indicating both of SR information and the HARQ ACK/NACK information, setting the uplink control channel to include the SR information and the HARQ ACK/NACK information, and transmitting the uplink control channel, which consists of two or three symbols in one short transmission time interval (sTTI), to a base station.
1. A method of a terminal for transmitting a short uplink control channel, the method comprising:
configuring i) first uplink control channel resources for indicating only HARQ ACK/NACK information and ii) second uplink control channel resources for simultaneously indicating both of scheduling request (SR) information and the HARQ ACK/NACK information;
setting the short uplink control channel with two or three symbols in one short transmission time interval (sTTI) to include the SR information and the HARQ ACK/NACK information by using the second uplink control channel resources for indicating both of the SR information and the HARQ ACK/NACK information; and
transmitting the short uplink control channel to a base station.
2. The method of claim 1 , wherein the first and second uplink control channel resources are determined using a plurality of cyclic shift indices.
3. The method of claim 1 , wherein the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is the same as the number of first uplink control channel resources allocated for indicating only the HARQ ACK/NACK information.
4. The method of claim 3 , wherein when the HARQ ACK/NACK information consists of 1 bit, the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is two.
5. A method of a base station for receiving short uplink control channel, the method comprising:
transmitting, to a terminal, information for configuring i) first uplink control channel resources for indicating only HARQ ACK/NACK information and ii) second uplink control channel resources for indicating both of scheduling request (SR) information and the HARQ ACK/NACK information;
receiving the short uplink control channel made up of two or three symbols in one short transmission time interval (sTTI) and configured using the second uplink control channel resources, from the terminal; and
detecting the SR information and the HARQ ACK/NACK information from the short uplink control channel.
6. The method of claim 5 , wherein the first and second uplink control channel resources are determined using a plurality of cyclic shift indices.
7. The method of claim 5 , wherein the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is the same as the number of first uplink control channel resources allocated for indicating only the HARQ ACK/NACK information.
8. The method of claim 7 , wherein when the HARQ ACK/NACK information consists of 1 bit, the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is two.
9. A terminal for transmitting a short uplink control channel, the terminal comprising:
a control unit configured to configure i) first uplink control channel resources for indicating only HARQ ACK/NACK information and ii) second uplink control channel resources for indicating both of scheduling request (SR) information and the HARQ ACK/NACK information and set the short uplink control channel with two or three symbols in one short transmission time interval (sTTI) to include the SR information and the HARQ ACK/NACK information using the second uplink control channel resources for indicating both of the SR information and the HARQ ACK/NACK information; and
a transmission unit configured to transmit the short uplink control channel to a base station.
10. The terminal of claim 9 , wherein the first and second uplink control channel resources are determined using a plurality of cyclic shift indices.
11. The terminal of claim 9 , wherein the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is the same as the number of first uplink control channel resources allocated for indicating only the HARQ ACK/NACK information.
12. The terminal of claim 11 , wherein when the HARQ ACK/NACK information consists of 1 bit, the number of second uplink control channel resources allocated for indicating both of the SR information and the HARQ ACK/NACK information is two.