Fraunhofer Heinrich-Hertz-lnstitut SDR RADIO FRONT-END MIMO - 8 TRXAT A GLANCE ■ Flexible Software Defined Radio platform consisting of stacked digitale interface card and radio frequency front-end 4 x 10Gbps Optical baseband interface. QSFP Connector Applications 2x2, 4x4 or 8x8 MIMO duplex operation Wide carrier frequency range from 70 MHz up to 6 GHz Supporting all LTE bands Different reference clock sources FDD and TDD operation Variable bandpass RF filter Supporting CPRI 4.1, OBSAI, 10GbE SDR platform supporting different communications standards with variable signal bandwidths, carrier frequencies and transmit power Multiband, MIMO and beamforming operation using several radio units connected and synchronizd via optical fiber 5G prototyping - arbitrary waveforms & Multi-MIMO

Fraunhofer Heinrich-Hertz-lnstitut Specifications ■ 2,4 or 8- antenna duplex operation with variable RF signal bandwidth ■ Xilinx Zynq-7000 FPGA, Linux OS ■ RX & TX LOs referenced on recovered optical interface CLK or external CLK reference. Fully syncronized RF- and BB oscillators ■ Baseband optical data rate up to 4x 10 Gbit/s ■ Analog design with AD9361 RF Transceivers - Integrated ADCs / DACs ■ Maximal output power (RMS, CW) of 0 dBm at 2.6 GHz ■ External power amlifiers depending on carrier frequency ■ External duplex components like SAW filters, diplexers and/or TDD switches available....