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1. (WO2017180337) MIMO TRANSCEIVER WITH SINGLE MASTER CLOCK AND PLURALITY OF FREQUENCY DIVIDERS

Pub. No.:    WO/2017/180337    International Application No.:    PCT/US2017/025670
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Tue Apr 04 01:59:59 CEST 2017
IPC: H04B 1/405
H04B 7/0413
H04B 1/00
Applicants: ALCATEL-LUCENT USA INC.
Inventors: KURCHUK, Boris
Title: MIMO TRANSCEIVER WITH SINGLE MASTER CLOCK AND PLURALITY OF FREQUENCY DIVIDERS
Abstract:
An embodiment of the disclosed MIMO transceiver uses a single master clock to generate (i) the sampling-clock signals for the analog-to-digital and digital-to-analog converters and (ii) the multiple electrical local-oscillator signals that are used in various channels of the transceiver's analog down- and up-converters to translate signals between the corresponding intermediate- frequency and RF bands. The MIMO transceiver may employ a plurality of interconnected frequency dividers configured to variously divide the master- clock frequency to generate the sampling-clock signals and the multiple local -oscillator signals in a manner that causes these signals to have different respective frequencies. In embodiments designed for operating in the mm W band, the MIMO transceiver may also employ a frequency multiplier configured to multiply the master-clock frequency to generate an additional local-oscillator signal for translating signals between the mm W and RF bands.