Patent ID: 8725136

Claim:
A baseband unit, comprising: a first Radio Frequency (RF) coverage unit configured to communicate with first RF devices according to a first communication protocol, the first RF coverage unit operating at a different frequency from the first RF devices; and a second RF coverage unit configured to communicate with second RF devices according to a second communication protocol different than the first communication protocol, the first RF devices and the second RF devices configured to communicate with mobile user devices via RF protocols; and an interface unit configured to selectively interface one of the first and second coverage units with the first RF devices and the second RF devices, the interface unit including a serializer/deserializer (SERDES) unit configured to communicate with the first RF devices at a first data rate set according to the first communication protocol, and communicate with the second RF devices at a second data rate set according to the second communication protocol, wherein data transferred from the first RF coverage unit to the first RF devices operating at different frequencies includes a time stamp for the first RF devices to recover system timing information of the first RF coverage unit.