A distributed radio system is disclosed. Transmit and receive packets of
data are transported over a relatively high-speed multiplexed network,
which in one embodiment may be an Ethernet network. The distributed radio
system comprises in one embodiment a centrally-located network-level
processing unit connected via network connections to one or more
intermediate-level processing units. The intermediate-level processing
units may be distributed throughout the coverage area. The processing
units perform digital signal processing, as well as higher level
processing such as signal routing, speech transcoding and proper
interfacing to external environments, such as a macrocellular
environment. Radio elements are provided that are accurately timed or
synchronized, such that the radio elements have their own time base to
ensure proper transmission, even when unpredictable network delays occur.