Nokia Siemens Networks Flexi Multiradio BTS is a GSM/EDGE, WCDMA/(I-)HSPA, and LTE base station. It is used in mobile telecommunication antenna networks. A network that you use daily on your cellphone. Teardown of a NXP BLD6G22L-150 integrated Doherty amplifier from a Nokia Siemens Networks Flexi WCDMA base station.
The previous teardowns that are also highly related to this Part 1: System station, Part 2: Power Amplifier and Part 3: Antenna
All high resolution pictures of the PCB, ICs and Doherty amplifier for this video can be found in part 4: another Power amplifier