The University of Arizona

Houman Rastegarfar

Ivan B Djordjevic

Daniel Kilper

Weiyang Mo

Mingwei Yang

Mariya A Bhopalwala

A controller to communications between a baseband unit (BBU) and a remote radio head (RRH) in a mobile fronthaul (MFH) network. The controller to initialize a pseudorandom seeding in the BBU and RRH and to cause the BBU and RRH to generate a pair of matching pseudorandom bit sequences (PRBS) to enable the BBU and RRH to synchronize communications therebetween; to select a wavelength and to select a route, through the MFH network, to enable the BBU and RRH to communicate using the selected wavelength and route; to select an error correction code and a modulation format for communications between the BBU and RRH; to encode one or more parameters of a physical layer in the MFH network into the PRBS; and to monitor a data stream between the BBU and RRH to determine if a bit error rate has changed for each frame of the data stream.

Probabilistically coded modulation for fronthaul networks

A proactive and non-obtrusive channel probing scheme is provided to accurately predict channel power, gain, and optical signal to noise ratio (OSNR) without disrupting the existing connections. In one example, using a probe signal with 5 &#x3bc;s pulse duration in a single-hop network, rapid wavelength switching is achieved with power excursions less than or equal to 0.2 dB for different loading configurations.

Growing community of inventors

Tucson, AZ, United States of America

Houman Rastegarfar