Output power control and envelope shaping for a pulsed transmitt

Details Output power control and envelope shaping for a pulsed transmitt Output power control and envelope shaping for a pulsed transmitt

1995-06-07

1997-10-07

Chin, Wellington

Pulse or digital communications

Transmitters

Antinoise or distortion

375312, 330 2, 330 51, 330135, 332159, 455 93, 455108, 455126, 455127, H03C 162

Patent

active

056756119

ABSTRACT:
Some mobile station cellular networks use either amplitude modulation or constant envelope modulation depending on the situation. The pulsed transmitter of the mobile station is switched on and off by a first control signal (TXP) and the output power envelope shaping of the pulse to be transmitted is controlled in the feedback loop by a second control signal (TXC). According to the invention the output power is controlled by a third control signal (TXCE) which in the amplitude modulation case switches off the feedback loop for the period of the information transfer and which at other times closes the feedback loop.

REFERENCES:
patent: 5038112 (1991-08-01), O'Neill
patent: 5049832 (1991-09-01), Cavers
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patent: 5123031 (1992-06-01), Kuisma
patent: 5291147 (1994-03-01), Muurinen
patent: 5291150 (1994-03-01), Saarnimo et al.
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patent: 5450620 (1995-09-01), Vaisanen
patent: 5491832 (1996-02-01), Malkamaki et al.
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patent: 5530923 (1996-06-01), Heinonen et al.
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Finnish Office Action and English translation thereof dated 24 Mar. 1995 for Finnish Priority Document NO. 942839.

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