Multiplex communications – Wide area network – Packet switching
Patent
1995-01-20
1996-09-24
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
375205, 455 69, H04B 7216
Patent
active
055597904
ABSTRACT:
In a spread spectrum communication system, one (W.sub.n) of a series of orthogonal codes for spectrum spreading is assigned to signal-to-noise ratio measurement in a terminal. On the basis of a noise signal detected by de-spreading a signal received from an antenna with the above described orthogonal code W.sub.n and a pilot signal, each terminal derives a signal-to-noise ratio. Each terminal transmits the signal-to-noise ratio to the base station as a power control signal. On the basis of signal-to-noise information received from each terminal as the power control signal, the base station controls signal transmission power for each terminal.
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"Hybrid CDMA System using microcells and Macrocells" by Nobukazu Doi et al, PIMRC '93 pp. 518-521.
Doi Nobukazu
Yano Takashi
Hitachi , Ltd.
Safourek Benedict V.
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