5G Propulsion Group: Ericsson is the first to complete millimeter wave OTA performance testing

IT Home January 13 news, according to the 5G promotion group released, recently, under the guidance of the China Academy of Information and Communications Technology, Ericsson for the first time completed the IMT-2020 mmWave OTA performance test.

In this test, Ericsson used commercial millimeter wave base station products in the 26GHz band and the carrier bandwidth formulated by the IMT-2020 (5G) propulsion group to test the performance and mobility of multiple channel models in LOS and NLOS scenarios.

Since the test of key millimeter wave technologies, Ericsson has conducted tests using commercial equipment and relevant configurations under commercial conditions. From functionality to performance, from labs to outfields, from LOS to NLOS scenarios, from fixed-point to mobility, from beam management to beam switching, from MTP to commercially available types of terminals, from real-world testing to OTA darkrooms based on channel simulators, Ericsson mmWave devices deliver superior performance and stability.

IT House learned that millimeter wave has natural advantages such as large bandwidth and low latency, but there are also challenges such as complex testing, difficulty and high cost. In particular, how to simulate real-world scenarios, testing key performance such as throughput and mobility under practical application configurations is of greater reference significance for millimeter wave commercial use. The OTA performance test used multi-probe, up-downconversion equipment and channel simulators to test the performance and beam management under various channel conditions such as LOS, NLOS, 3km/h, 30km/h, 60km/h, etc., and further tested millimeter wave equipment in simulated practical application environments on the basis of laboratory and field tests. Through the test, not only the millimeter wave equipment is verified, but the end-to-end test environment such as test equipment, channel parameters, test methods, and terminal chips are verified accordingly, which is another positive step for the large-scale commercial use of millimeter wave in China.

At present, the global commercial use of millimeter waves has been gradually launched, and countries have successively allocated spectrum and launched commercial deployment. In China, with the gradual unification and clarification of key indicators such as carrier bandwidth, frame structure, and power limits, and the orderly advancement of spectrum planning, the industrial chain is becoming more and more mature and perfect from equipment, terminals to testing.