Patent ID: 8401099
Filing Date: 2013-03-19
Classification: H04J,H04L,H04W

Abstract:
1. A method of transmitting a control signal in a wireless communication system, performed by a user equipment, the method comprising: determining a first cyclic shift value for a first control signal in a multiplexed resource block; determining a second cyclic shift value for a second control signal in the multiplexed resource block; generating a first spread control signal by spreading the first control signal with a first cyclic shifted sequence which is obtained by cyclically shifting a base sequence with the first cyclic shift value; generating a second spread control signal by spreading the second control signal with a second cyclic shifted sequence which is obtained by cyclically shifting the base sequence with the second cyclic shift value; and transmitting the first spread control signal and the second spread control signal in the multiplexed resource block, wherein the multiplexed resource block is defined by a plurality of subcarriers in frequency domain and a slot in time domain, the slot comprising plurality of orthogonal frequency division multiplexing (OFDM) symbols, and wherein a number of OFDM symbols used for a reference signal of the first control signal in the multiplexed resource block is greater than a number of OFDM symbols used for a reference signal of the second control signal in the multiplexed resource block.