The eMIMOx8 module and firmware for advanced Software Define Radio (SDR) applications provides a production-ready 8T8R 5G NR MIMO RF Module to support high-performance, ultra-wide bandwidth enhanced-MIMO in a highly integrated form factor with standards-compliant interface.
64Tx/64Rx Massive MIMO Remote Radio Unit (RRU): The AVALO-RU64A is a high-performance Remote Radio Unit (RRU or RU) for a Massive MIMO BTS system. Multiple RRUs can be linked back to a Cloud-RAN (C-RAN) central processing node for distributed massive MIMO.
8×8 MIMO Software Defined Radio Module for Remote Radio Unit: The RMB-101A (download datasheet) is a high-performance Software Define Radio (SDR) 8Tx/8Rx Multi-Channel Transceiver Module for a Remote Radio Unit for a Base Band Unit (BBU) located from a few meters to over 10 km away from the radio in a C-RAN type network or for distributed massive MIMO.
8×8 MIMO RF Frontend TDD Band 41: The RDB-B41TA is a high-performance multi-channel MIMO RF Frontend (FE) Module. It includes 8 independent TX Power Amplifier (PA) channels, and 8 independent RX Low Noise Amplifier (LNA) channels. The working band is TDD band 41 (2496 – 2690 MHz). In the TX chain, the gain is ~30 dB, and the output power for CW is +29 dBm, for LTE is about ~+18 dBm with ACLR > 47 dB. Both input and output return loss are ~12 dB. In the RX chain, the gain is ~24 dB, max CW input level lower than -3 dBm, for LTE input signal, the max input level is lower than -15 dBm. The RX Noise Figure (NF) is about 4 dB and the both input and output return loss about 15 dB.
8×8 MIMO SDR with Built-in Reciprocal Calibration: Massive MIMO takes advantage of the reciprocity of the over-the-air (OTA) channel in TDD to reduce the overhead in channel estimation. It estimates the downlink channel based on the uplink channel obtained from SRS in uplink. For this to work, the Tx and Rx chains in the base station RU must be calibrated so that they are reciprocal. This module is similar in function to our 8×8 MIMO SDR except this module has built-in circuit to perform the reciprocal calibration of the 8Tx and 8Rx chains. More importantly, the built-in calibration circuits can be chained for reciprocal calibration of a larger RU, e.g., a RU with 64Tx and 64Rx chains.
64×8 and 64×16 Massive MIMO RF Channel Emulators: Optimizing, testing and comparing performance of massive MIMO base station algorithms and RF hardware settings require a RF channel emulator that is capable of emulating in real-time the massive MxK RF channels, where M≥64 is the number of RF paths in the base station and K≥8 is the number of spatially multiplexed UE data streams in the same resource block.