Analog baseband interface for communication systems

摘要

A communication system interface between a baseband unit and a radio frequency (RF) unit is configured to advantageously use a common set of lines to carry both transmit and receive baseband analog signals between the baseband and RF unit, thereby enabling a relatively lower signal count and permitting loopback testing of elements within the baseband and the RF units.

主权项

1. A wireless communication system comprising:
a baseband unit including a plurality of baseband sub-units, each baseband sub-unit including a digital to analog converter (DAC) and an analog to digital converter (ADC); an RF unit including a plurality of RF sub-units, each RF sub-unit including a transmitter and a receiver; and a plurality of sets of inter-unit lines, each set of inter-unit lines connecting a baseband sub-unit and a corresponding RF sub-unit, wherein each baseband sub-unit and its corresponding RF sub-unit form a processing section, and wherein each set of inter-unit lines allows a DAC and a transmitter of one processing section to communicate, and allows a receiver and an ADC of another processing section to communicate.