Remote radio head
Radio Frequency Systems has demonstrated a remote radio head unit that is claimed to show the fastest bit-rate of any 'fibre-to-the-tower-top' solution.
Compatible with the open base station architecture initiative (OBSAI) RP3-01 interface definition, the head uses the bandwidth and flexibility of fibre optics and permits the base transmitter station to antenna separation distances of up to 15 km.
This allows the base station to be in more easily acquired sites, remote from the mast and radio head/antenna assembly. In addition, the fibre-optic link offers ongoing opex savings, via the almost loss-free 'BTS-to-tower-top' fibre link.
The unit's '3-Gbps plus' total throughput capacity ensures that the head can support networking.
The unit is compatible with the OBSAI RP3-01 interface definition.
The weatherproof head provides a digital interface to the BTS, plus modulation/demodulation and amplification of both transmit and receive RF signals. In addition, all antenna interface standards group (AISG)-compliant antenna control and monitoring functionality is supported via the RFS RRH and the fibre link. All essential data channel serialisaton and de-serialisation, data buffering, redundancy coding and clock synchronisation can be handled onboard the unit.
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