Time Division Multiple Access FDD Wireless Unit and Time Division Multiple Access FDD / TDD Dual Mode Wireless Unit for Mobile Communication

摘要

The FDD wireless unit includes a first local oscillator (8) for oscillating a first frequency, a second local oscillator (12) for oscillating a second frequency, and an n-fold A multiplier (18) for multiplying a second frequency by m times, a converter (6) for transmitting a different frequency between the reception signal and the output of the first local oscillator (8), and a multiplier A converter 11 for transmitting the sum or difference frequency between the output of the converter 6 and the output of the n-times multiplier 14, a modulator 19 for modulating the output of the m-times multiplier 18, And a converter (22) for transmitting the sum frequency of the output of the modulator (19) and the output of the m-times multiplier (18).