Rohde & Schwarz and Huawei Technologies have successfully demonstrated a 1.6 Gbps LTE-A-Pro downlink connection, using Huawei Balong 765. This is the first LTE modem to support category 19 LTE at 1.6 Gbps technology.
Rohde & Schwarz and Huawei achived download speeds of 1.6 Gbps by using a combination of four downlink FDD carriers. Each carrier was received separately on four transmission layers (4x4 MIMO, or multiple in, multiple out) and 256 QAM data modulation. 3GPP 4x4 MIMO mandates four receive antennas on the device side, so four RF connections are needed. These are provided by the 4x4 MIMO functionality of the R&S CMW500 wideband radio communication tester.
The R&S CMW500 test platform can simulate and verify the combination of signaling and end-to-end data transmission on the involved carriers, regardless of the 3GPP defined band configuration to be tested. For testing LTE in unlicensed spectrum configurations, the downlink carriers could even be set up in the 5 GHz unlicensed spectrum. The R&S CMW500 in its R&S CMWflexx configuration is the first test platform that offers an eCA solution for up to 8CC downlink, for protocol, RF and data performance verifications.
The Balong 765 from Huawei has become the first modem to support LTE Cat. 19 downlink and Cat. 13 uplink connectivity, enabling mobile broadband speeds of up to 1.6 Gbps. With advanced technologies of 8x8 MIMO, 5CC CA, 256QAM, the Balong 765 will help operators boost network capacity and will take consumers to higher-speed and highly immersive experience. Moreover, Balong 765 can help operators to provide reliable connectivity and roll out Internet of Things solutions.
At Mobile World Congress 2018, Rohde & Schwarz showcased a solution with eight aggregated downlink carriers. So the R&S CMW is the first test platform on the market that supports enhanced carrier aggregation (eCA), since it supports more than five aggregated downlink channels.
