METHOD AND APPARATUS FOR TRANSMITIING ACK/NACK
A technology enabling a terminal to receive acknowledgement (ACK)/negative ACK (NACK) information about data transmitted from the terminal is provided. The method includes receiving cyclic shift information for a reference signal from the base station; transmitting, to the base station, the data and a reference signal which is cyclic-shifted using a cyclic shift value, the cyclic shift value being determined based on a dynamic cyclic shift value mapped one-to-one to the cyclic shift information for the reference signal; and receiving, from the base station, the ACK/NACK information about the transmitted data through a radio resource of a downlink channel, the radio resource of the downlink channel being identified based on a modifier mapped one-to-one to the cyclic shift information for the reference signal.
1 . A method of receiving acknowledgement (ACK)/negative ACK (NACK) information about data transmitted to a base station in a terminal of a wireless communication system, the method comprising:
receiving cyclic shift information for a reference signal from the base station;
transmitting, to the base station, the data and a reference signal which is cyclic-shifted using a cyclic shift value, the cyclic shift value being determined based on a dynamic cyclic shift value mapped one-to-one to the cyclic shift information for the reference signal; and
receiving, from the base station, the ACK/NACK information about the transmitted data through a radio resource of a downlink channel, the radio resource of the downlink channel being identified based on a modifier mapped one-to-one to the cyclic shift information for the reference signal.
2 . The method of claim 1 , wherein the cyclic shift information for the reference signal is mapped one-to-one to the dynamic cyclic shift value according to Table 1.
TABLE 1
Cyclic shift information
Dynamic cyclic
for reference signal
shift value
000
0
001
6
010
3
011
4
100
2
101
8
110
10
111
9