Method of transmitting control signals in wireless communication system

摘要

A method of transmitting control signals in a wireless communication system includes multiplexing a first control signal with a second control signal in a slot, the slot comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols in time domain, the plurality of OFDM symbols being divided into a plurality of data OFDM symbols and a plurality of reference signal (RS) OFDM symbols, wherein the first control signal is mapped to the plurality of data OFDM symbols after the first control signal is spread by a base sequence in the frequency domain, the RS is mapped to the plurality of RS OFDM symbols, the second control signal is mapped to at least one of the plurality of RS OFDM symbols, and transmitting the first control signal and the second control signal in the slot.

主权项

1. A method of receiving, by a base station (BS), control signals in a wireless communication system, the method comprising:
receiving channel quality indicator (CQI) bits which are quadrature phase shift keying (QPSK) modulated and mapped to a plurality of data symbols in a slot; and receiving a control signal which is multiplexed with 1 and mapped to a second reference signal (RS) sequence if the control signal has a first value; or receiving a control signal which is multiplexed with −1 and mapped to a second RS sequence if the control signal has a second value; wherein a first RS sequence is mapped to a first RS symbol in the slot and the second RS sequence is mapped to a second RS symbol in the slot.