Spread spectrum communication method and spread spectrum communication apparatus

A spread spectrum communication method individually performing direct sequence-spread spectrum (DS-SS) modulations of a plurality of information data series by using the same pseudo-random code series, and performing radio communication of a plurality of signals obtained by performing the DS-SS modulations using carrier frequencies separated from each other in units of an integer multiple of the frequency amount R defined by the information baud rate, comprising steps of:

• among all of spread spectrum signal waves having the carrier frequencies separated from each other in units of an integer multiple of the frequency amount R in a specified communication-band width, converting all the spread spectrum signal waves having the carrier frequencies separated from each other in units of an even-number multiple of the frequency amount R into a first group;
• converting all the spread spectrum signal waves that are adjacent to the spread spectrum signal waves and that have the carrier frequencies separated in units of an even-number multiple of the frequency amount R into a second group and;
• simultaneously transmitting the first group of spread spectrum signal waves and the second group of spread spectrum signal waves according to orthogonal polarized waves to perform information transmission.