Patent ID: 7336637

Claim:
A CDMA communication device for assigning any of a plurality of frequencies as a working frequency of a user, and using the assigned frequency to modulate and transmit the user data of said user, said CDMA communication device comprising: a spreading means for spreading and multiplexing the user data of said user; a plurality of radio transmission means that are each provided correspondingly to each of said plurality of frequencies for modulating with said frequencies said user data that have been supplied as output from said spreading means; and a control means that includes a determination means for determining the working frequency of said user based on a spreading factor of said user data in said spreading means; and a setting means for setting the spreading factor of said user data in said spreading means and performing settings of said spreading means such that said user data are supplied as output to said radio transmission means that is provided correspondingly to the frequency that has been determined by said determination means.