Method and arrangement for transmitting and receiving RF...

Telecommunications – Transmitter and receiver at same station – With frequency stabilization

Reexamination Certificate

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C455S234100, C455S307000

Reexamination Certificate

active

07415247

ABSTRACT:
A method and an arrangement for transmitting and receiving RF signals, associated with different radio interfaces of communication systems, employ a direct conversion based transceiver which substantially comprises one receive signal branch and one transmit signal branch. Mixing frequencies of the different systems are generated by a single common synthesizer by use of an output frequency divider in combination with the synthesizer, and by use of filtering corresponding to a system channel bandwidth by means of a controllable low-pass filter operating at baseband frequency.

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* Corresponds to Finnish Patent Application No. FI 100286.

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