Patent ID: 8325780

Claim:
An apparatus for generating a time domain vector used in CDMA communication, the apparatus comprising: a code outputting section configured to output a PN code selected from among a plurality of PN codes different from each other, the PN code including a predetermined number of PN code elements whose absolute values are equal to each other; a zero value adding section configured to insert a zero value element whose value is 0 into the PN code to generate a frequency domain vector, the frequency domain vector having an unused frequency band and used frequency bands separated by the unused frequency band, the unused frequency band being a frequency band used by another communication, the PN code elements being allocated contiguously in the used frequency bands, and the zero value element being allocated in the unused frequency band; and an inverse Fourier transforming section configured to convert the frequency domain vector into the time domain vector through an inverse Fourier transform.