ZTE Co. Ltd. has reached a milestone by successfully completing the implementation of a DL Cat-18 device. Rohde & Schwarz (R&S) was selected to verify the new ZTE 1.2 Gbps Smartphone with a test setup based on a R&S CMW500 mobile communication tester. ZTE 1.2 Gbps Smartphone can support download speed up to 1.2 Gbps by using 3CC downlink carrier aggregation with 4 x 4 MIMO and 256QAM modulation. ZTE exhibited it at the Mobile World Congress 2018 in Barcelona.
ZTE 1.2 Gbps Smartphone supports the combination of up to 3CC downlink carriers on which carriers can be received separately on four transmission layers (4 x 4 MIMO) using a modulation of 256QAM. The R&S CMW500 mobile communication tester from Rohde & Schwarz has been used to verify the proper functionality of the mobile device.
The R&S CMW500 is the ultimate test platform for simulating and verifying 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. This is important for 3GPP features such as License Assisted Access (LAA). The R&S CMW500 in its R&S CMWflexx configuration is the first test platform that offers enhanced carrier aggregation (eCA) capabilities for up to 8CC including 4 x 4 MIMO, for protocol, RF and data performance verifications.
