Huawei, in partnership with NTT DOCOMO, conducted 5G large-scale field trial in the 4.5 GHz band using new numerology and frame structure complying with 3GPP 5G New Radio (NR) current agreements.
During the trial, the participants achieved 11.29 Gbps total user throughput and less than 0.5 millisecond one way user plane latency in the macro cell coverage of a real urban application scenario in Yokohama, Japan.
The test was performed in Yokohama Minato Mirai 21 District, which is one of the largest commercial areas in Japan. The macro cell was made up with one base station that works in the 4.5 GHz band with 200 MHz bandwidth, 64 TRXs and 23 UEs of both static and mobile types.
According to the test, 11.29 Gbps total user throughput was achieved with 24 layers with each UE receiving 2 layers. The peak spectrum efficiency reached was 79.82 bps/Hz/cell. With new frame structure and numerology, less than 0.5ms one way user plane delay was achieved. This user plane latency is about one tenth of LTE.
After signing MoU on partnership in 5G joint field trials in December 2014, Huawei and DOCOMO succeeded in the world’s first large-scale outdoor field trial of Massive MIMO in Chengdu, China in October 2015.
Takehiro Nakamura, vice president and managing director of NTT DOCOMO’s 5G Laboratory, said, “Our success in 5G large-scale field trial in the 4.5 GHz band brought the whole industry one step closer to 5G commercialization by 2020.”
Wen Tong, Huawei fellow and CTO of Huawei Wireless Networks, said “Huawei is now putting a lot of resource and energy to 5G NR foundational technology development, market development and product solution development.”
“With the expert team we put together, the collaboration between Huawei and DOCOMO is now on the fast track and the progress is very encouraging, this achievement is extremely important to form the foundation of future 5G,” Tong said.
3GPP standardization in terms of 5G NR has recently made significant progress because of strong momentum towards the global standard from the entire ecosystem. Huawei and DOCOMO will continue to further expand their joint 5G NR test scope, including mobility and large coverage, which are the most important aspects to launch the 5G network.