System and method for single to two-band personal communication

Details System and method for single to two-band personal communication System and method for single to two-band personal communication

1997-10-22

2000-05-16

Jung, Min

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370481, H04B 7216

Patent

active

060646659

ABSTRACT:
CDMA (Code Division Multiple Access) communications systems and methods for performing a single to multiple frequency band conversion for mobile communications. The systems and methods include mixing a portion of a first CDMA signal in a first frequency band with a reference signal to convert a portion of the first CDMA signal to a second frequency band. The converted portion and the other portion of the first frequency band can then be transmitted. The systems and methods further include filtering a portion of a second CDMA signal having frequency components in multiple frequency bands to provide a filtered CDMA signal in the first frequency band. The filtered CDMA signal is then mixed to convert it to the second frequency band for receiver processing.

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