- At the 2019 edition of the Mobile World Congress 2019, which will be held in Barcelona from February 25 to 28, Rohde & Schwarz will present a test solution for WLAN 2×2 MIMO stations that complies with the IEEE 802.11ax standard.
MIMO (Multiple Input Multiple Output) technology is a method of transmitting multiantenna signals using multipath propagation to increase data rates in wireless telecommunications.
The transmitting and receiving antennas must be spatially separated from each other. The compactness of mobile devices such as smartphones makes this operation difficult. Due to their extreme compactness, these phones can only carry two transmitting and two receiving antennas. Transmission in MIMO mode can therefore only be carried out in 2×2 mode.
Rohde & Schwarz announces that its R&S CMW270 wireless communication tester now makes it possible to test the RF characteristics of WLAN 2×2 MIMO stations in accordance with the IEEE 802.11ax standard.
This tester is used to determine the RF characteristics of transmitters and receivers as well as the transmission and reception data rate.
In signaling mode, the R&S CMW270 tester emulates an 11ax WLAN access point (AP) to which the equipment under test, a WLAN station, is connected in normal mode. Unlike the commonly used non-signalling mode, it is possible to perform tests and measurements in signalling mode under realistic conditions without using a wired remote control solution using instrument-specific control software.
The CMW270 tester is suitable for signalling tests in accordance with IEEE 802.11a/b/g/g/g/n/ac/ax WLAN standards as well as for testing Bluetooth devices, for example, and for RF testing of components communicating under ZigBee and Thread in accordance with IEEE 802.15.4 standard.
The WLAN 2×2 MIMO 11ax signaling solution will be available from Rohde & Schwarz in April 2019 for CMW270, CMW290 and CMW500 series testers.