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Abstract

A communication resource allocation method and apparatus services, in even the code division multiple access method (CDMA) considered to be suitable for radio transmission using mobile stations such as a cellular phone, a strict orthogonal relationship, so that received signals can be separated from each other completely. This reduces the problem whereby other mobile stations are interfering sources. It also reduces the problem whereby if an application band width for use is defined, the other band widths cannot be applied. The multi-carrier modulation section places a plurality of carriers continuously within a preliminary allocated band and modulates the individual carriers separately. An adder synthesizes a plurality of the carriers modulated by the multi-carrier modulation section. An antenna transmits a synthesized output from the adder.

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