公开(公告)号：US09660690B2

公开(公告)日：2017-05-23

申请号：US15103309

申请日：2015-11-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Cynthia D. Baringer ,  Mohiuddin Ahmed ,  Albert E. Cosand ,  James Chingwei Li ,  Peter Petre ,  Zhiwei A. Xu ,  Yen-Cheng Kuan

IPC: H04B1/00 ,  H04B1/52 ,  H04B1/48 ,  H04L25/02 ,  H04B1/04 ,  H04B1/18 ,  H04B1/401

CPC classification number: H04B1/52 ,  H04B1/00 ,  H04B1/0007 ,  H04B1/0057 ,  H04B1/0483 ,  H04B1/18 ,  H04B1/401 ,  H04B1/48 ,  H04L25/02

Abstract: A cellular radio architecture that includes a receiver module having a receiver delta-sigma modulator that converts analog receive signals to a representative digital signal. The architecture further includes a transmitter module having a transmitter delta-sigma modulator for converting digital data bits to analog transmit signals. Portions of the receiver and transmitter modules are fabricated with silicon germanium (SiGe) technologies and portions of the receiver and transmitter modules are fabricated with CMOS technologies.

公开(公告)号：US09648562B2

公开(公告)日：2017-05-09

申请号：US15218581

申请日：2016-07-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Timothy J. Talty ,  Cynthia D. Baringer ,  Mohiuddin Ahmed ,  Albert E. Cosand ,  James Chingwei Li ,  Peter Petre ,  Zhiwei A. Xu ,  Yen-Cheng Kuan

IPC: H04W52/02 ,  H04B1/04 ,  H04B1/00 ,  H04B1/10

CPC classification number: H04W52/0209 ,  H04B1/006 ,  H04B1/0475 ,  H04B1/1018 ,  Y02D70/1224 ,  Y02D70/142 ,  Y02D70/40

Abstract: A transceiver front-end circuit for a cellular radio architecture for a vehicle, where the transceiver circuit employs components for reducing power consumption. The transceiver circuit includes a receiver module having a delta-sigma modulator that converts analog receive signals to a representative digital signal in an interleaving process, where the delta-sigma modulator includes a combiner, a low noise amplifier (LNA), an LC filter and a quantizer circuit. The LC filter is a multi-order filter and the quantizer circuit is an interleaving quantizer circuit that interleaves multiple groups of bits from the filter. The order of the LC filter is selectively reduced in situations where a full dynamic range of the cellular radio is not required and a bit resolution of the quantizer circuit is reduced so as to reduce the power requirements of the cellular radio.