This video is part 1 of series on Open RAN. Traditionally the RAN has been a single product consisting of Base Band Unit (BBU) and Radio Unit (RU) in a single box connected to Antenna using wave guide cable (RF Cab;e). During late 3G deployment , Radio Unit was taken out and placed near to Antenna to avoid cable loss. The implementation was proprietary implemented by OEMs. Later OEMs introduced virtualised BBU function deployed on any COTS server but it was still proprietary implementation. Then Came the concept of Open RAN wherein RU was implemented on GPP COTS Server and Interface between BBU and RU became Open Interface.
In this video images used are from NI, 3g4G, and parrallel Wieless web sites.