CPC H04W 88/085 (2013.01) [H04B 7/04 (2013.01); H04B 10/25753 (2013.01); H04W 24/02 (2013.01); H04W 72/0453 (2013.01); H04W 92/12 (2013.01)] | 19 Claims |
1. A base station system, comprising:
a baseband unit (BBU); and
an intermediate radio unit (IRU) operable to communicate with a first radio head (RH), the first RH being arranged for wireless transmission in radio frequency (RF) of a plurality of antenna carriers to user equipments (UEs), wherein:
the BBU is configured to produce a plurality of digital data flows, each digital data flow being associated with a different one of the plurality of antenna carriers, and
the IRU is further configured to:
receive in a baseband frequency range the plurality of digital data flows;
multiplex the plurality of digital data flows into a frequency multiplexed digital intermediate bandwidth (IBW) signal comprising the plurality of digital data flows;
process the digital IBW signal comprising the plurality of digital data flows to produce a processed digital IBW signal comprising the plurality of digital data flows; and
transmit to the first RH the processed digital IBW signal comprising the plurality of digital data flows.
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