Uses both channels of USRP® B210, X300 or X310 to transmit an LTE downlink signal that requires two antennas. The signal is generated by the LTE System Toolbox™ and random bits are inserted into the SIB1 field, the first of the System Information Blocks. The accompanying example sdruLTE2x2SIB1Rx.m receives this signal with two antennas, recovers the SIB1 data, and checks the CRC.

Uses both channels of USRP® B210, X300 or X310 to receive an LTE downlink signal. The LTE System Toolbox™ is used to synchronize, demodulate and decode the signal sent by the accompanying example sdruLTE2x2SIB1Tx.m. Since the transmitted signal uses a transmit diversity scheme, orthogonal space frequency block code (OSFBC) decoding is performed by the function lteTransmitDiversityDecode. In the end, the SIB1 field, the first of the System Information Blocks, is recovered and the CRC is checked.

Uses beamforming techniques to send two different payloads to two receivers simultaneously in the same frequency band. Channel estimates from the receivers are used continuously to update the transmitted beams.