SOFTWARE PROGRAMMABLE CELLULAR RADIO ARCHITECTURE FOR WIDE BANDWIDTH RADIO SYSTEMS INCLUDING TELEMATICS AND INFOTAINMENT SYSTEMS

• Main Authors: MACDONALD ANDREW J, AHMED MOHIUDDIN, BARINGER CYNTHIA D, LI JAMES CHINGWEI, PETRE PETER, SOVERO EMILIO A, TALTY TIMOTHY J, COSAND ALBERT E, XU ZHIWEI A, PAN HSUANYU, KUAN YENNG
• Format: Patent
• Language: English
• Published: 20.10.2016
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

A cellular radio architecture that includes a programmable bandpass sampling radio frequency front-end and an optimized digital baseband. The architecture includes a multiplexer having signal paths that include a bandpass filter that passes a different frequency band than the other bandpass filters and a circulator that provides signal isolation between the transmit signals and the receive signals. The architecture also includes a receiver module having a separate signal channel for each of the signal paths in the multiplexer, where each signal channel in the receiver module includes 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, where the transmitter module includes a power amplifier and a switch for directing the transmit signals to one of the signal paths in the multiplexer.