| 摘要 |
PURPOSE: A terminal transmission device of CDMA telecommunication system and the method thereof are provided to perform a channel gain multiplying and an integer spreading by using simple binary operation. CONSTITUTION: The terminal transmission device of CDMA telecommunication system comprises: orthogonal modulators(212) channel orthogonal-modulating the coded transmission signals by multiplying them by the orthogonal codes of corresponding channels; gain controllers(220) controlling channel gains by multiplying said respective orthogonal modulated signal by a gain control value of corresponding channel; complex spreaders multiplying said channel gain controlled signals by PN sequences of corresponding channel, then band-spreading it; and modulators dividing said gain controlled transmission signal into an I channel and a Q channel, then modulating them. |
