Cellular radio communication system cellular radio...

Details Cellular radio communication system cellular radio... Cellular radio communication system cellular radio...

2007-01-16

2007-01-16

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Transceivers

C375S222000, C455S073000, C455S083000

Reexamination Certificate

active

11008212

ABSTRACT:
A cellular radio communication system, a cellular radio communication method and a rake reception method for raising the efficiency of a baseband, and increasing the freedom of the structure of the radio base station. A cellular radio communication system comprises a baseband and first to Nth transmitter-receicvers connected by a transmission line. The baseband is provided with a modulator for producing, by a digital process, modulation signals to be sent from the first to Nth transmitter-receivers, and a demodulator for demodulating digital modulation signals received and analog-to-digital converted by the first to Nth transmitter-receivers. The transmitter-receiver is provided with a digital-to-analog converter for converting a digital modulation signal to a modulation signal to be sent, and an analog-to-digital converter for converting a received modulation signal to a digital modulation signal.

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