Patent ID: 8861325

Claim:
A method for configuring subchannels for an uplink data transmission at a base station in a wireless communication system, the method comprising; dividing an uplink transmission resource to PUSC (Partial Usage of SubChannel) tiles of 4 subcarriers×3 symbols; configuring sub channels to 6 PUSC tiles based on a predetermined rule; allocating a predetermined number of contiguous subchannels among the configured subchannels as subchannels for a legacy system, and allocating the remaining subchannels as subchannels for the wireless communication system, wherein subchannel rotation per slot consisting of 3 symbols is applied to the subchannels for the legacy system, wherein a subchannel rotation per subframe consisting of 6 symbols or 9 symbols is applied to the subchannels for the wireless communication system, wherein the subchannel rotation per slot is performed in accordance with Equation 1, temp2_subchannel_number=(temp1_subchannel_number+13 *S idx )mod N subchannel for 16e MS , <Equation 1> wherein, temp 2 _subchannel represents a subchannel index after the subchannel rotation is applied, temp 1 _subchannel represents a subchannel index before the subchannel rotation is applied, S idx represents a slot index, and N subchannel for 16e MS represents a number of subchannels for the legacy system, wherein the subchannel rotation per subframe is performed in accordance with Equation 2, temp2_subchannel_number=(temp1_subchannel_number+13 *S k )mod N subchannel for 16m AMS , and <Equation 2> wherein, temp 2 _subchannel represents a subchannel index after the subchannel rotation is applied, temp 1 _subchannel represents a subchannel index before the subchannel rotation is applied, S k represents a subframe index, and N subchannel for 16m AMS represents a number of subchannels for the wireless communication system.