Another concern is that the five system-level equipment vendorsHuaweiThe three-stage test results of ZTE, ZTE, Ericsson, Nokia and China Xinke Group were also announced. In addition, Samsung also joined the third-stage NSA test as the sixth system equipment manufacturer.
China's 5G technology research and development test was launched in January 2016. It is divided into three stages: key technology verification, technical solution verification and system networking verification. The main 5G technology research and development test will be carried out from 2016 to 2018, and 5G products will be carried out from 2019 to 2020. R&D test. In terms of image, the first-stage key technology verification is equivalent to completing the single-point test. The second-stage technical solution requires that the points be connected into a line, and the three-stage system networking verification is connected to the line, step by step close to the mature solution.
From a standard perspective, there are currently two important time nodes. In December 2017, 3GPP completed the NSA (non-independent networking) 5G standard, mainly supporting eMBB scenarios, and also referenced the 5G system architecture; in June 2018, SA (independent networking) standards were released, supporting eMBB scenarios and mMTC scenarios. The network interface protocol is also completed simultaneously; in addition, the late drop version will be released in December this year, which is a supplement to the R15 version. In December 2019, the complete 5G standard will be handed over to the ITU.
Xu Fei, 5G experimental group of IMT-2020 (5G) promotion group, said that the three-stage test has very clear objectives. First, develop norm guidance 5G pre-CommercialAnd the development of commercial products; second, to carry out single system, single terminal, system networking and interoperability testing; third, to carry out 5G typical application fusion experiments.
As shown in the above figure, Huawei, ZTE, and China Xinke Group completed the test content of the non-independent networking 3.5/4.9GHz frequency band. Ericsson mainly tested the 3.5GHz frequency band, and Nokia Bell also completed most of the test content. In the previous phase of testing, there have been five system-level equipment vendors involved, and Samsung’s appearance is somewhat surprising.
From 2G to 5G, the number of system-level equipment vendors has been decreasing. Samsung has participated in domestic system testing before, and Samsung is also the mainstream system equipment supplier worldwide. Research firm Dell’Oro pointed out that in the second quarter of this year, Samsung has surpassed ZTE to become the world's fourth largest communications equipment supplier.
The independent network test is still in progress. At present, Huawei, China Xinke Group, Ericsson and ZTE have completed the SA core network test. Huawei has also completed the SA base station function test. China Xinke Group, Ericsson and ZTE have basically completed the SA base station function test. .
Xu Fei concluded that the 5G R&D test was promoted in three stages, the domestic adoption of 3GPP international standards, the formulation of all test specifications, the harmonization of the main physical layer parameters, the guidance of 5G pre/commercial product development, and the construction of a 5G indoor and outdoor integrated test network environment. R & D and build 5G RF and performance test system to meet the test requirements in time; comprehensively organize collaborative research and development and test verification of 5G systems, chips and instruments, complete non-independent networking (NSA) system testing, and test the independent network (SA) system test process Effectively promote the maturity of 5G technology and equipment; the next step will continue to accelerate the promotion of system equipment, chips, terminals, metersDevelopmentAnd optimization, comprehensive interoperability testing of system and chip terminals.