In a compressed mode, a spread spectrum communication device interleaves bit
units
across multiple frames using an interleaver, reduces the spreading factor using
a framing/spreading unit, outputs the compressed mode frames at a predetermined
compressed mode frame timing, and increases the average transmission power in the
compressed mode at a radio frequency transmitter. Furthermore, a handover between
different frequencies is carried out by establishing synchronization to another
frequency carrier, based on a first search code and a second search code which
have been detected, and moreover, a handover between different communication systems
is carried out by establishing synchronization to a GSM, based on an FCCH and a
SCH which have been detected.
