Method and apparatus for allocating a plurality of data symbols in a wireless communication system

A receiving end for receiving uplink data, the receiving end comprising:

• a receiver receiving, from a transmitting end, the uplink data transmitted in a plurality of subcarrier groups;
• and
• a subcarrier-to-symbol mapper de-mapping the uplink data from the plurality of subcarrier groups;
• and
• a demodulator demodulating the de-mapped uplink data,
• wherein the plurality of subcarrier groups are not contiguous with each other in a frequency domain,
• wherein each of the plurality of subcarrier groups includes subcarriers that are contiguous in the frequency domain,
• wherein the uplink data includes uplink data symbols, and
• wherein the uplink data symbols have been mapped in sequence to the plurality of subcarrier groups in increasing order of a subcarrier index.