METHOD OF AND APPARATUS FOR ALLOCATING SUB-CHANNELS IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) SYSTEM

摘要

A method and apparatus for allocating subchannels in an orthogonal frequency division multiple access (OFDMA) system is provided. In the method and apparatus, mixed bands in each of which adjacent subcarriers and distributed subcarriers are mixed are used to form a band of a basic physical resource. Accordingly, diversity subchannels each comprised of distributed subcarriers distributed over the whole band and band subchannels each comprised of adjacent subcarriers adjacent to parts of the band are formed in a single OFDMA symbol, thereby simultaneously and flexibly allocating subchannels to users.