NTT DOCOMO plans to conduct interoperability testing and over-the-air field trials in Japan based on the 5G New Radio (NR) specifications being developed by 3GPP. The trials will operate in mid-band spectrum at 4.5 GHz, as well as millimeter wave (mmWave) spectrum at 28 GHz, showcasing the unified 5G NR design across diverse spectrum bands. The trials intend to drive the mobile ecosystem toward rapid validation and commercialization of 5G NR technologies at scale, enabling timely commercial network launches based on 3GPP Rel-15 standard compliant 5G NR infrastructure and devices.
The trials will utilize device prototype and base station solutions from Qualcomm Technologies and Ericsson respectively, along with trial environments from NTT DOCOMO, to simulate real-world scenarios across a broad set of use cases and deployment scenarios. The trial will include 5G NR operation at 4.5 GHz, which allows a large bandwidth resulting in high data rates and good capacity with reasonable coverage to address the large number of envisioned 5G use cases.
The trial will showcase advanced 3GPP 5G NR technologies including Massive Multiple-Input Multiple-Output (MIMO) antenna technology, beamforming techniques, adaptive self-contained TDD, scalable OFDM-based waveforms to support wider bandwidths, advanced coding and modulation schemes, and a new flexible, low-latency slot structure based design. In addition, the trial will include 5G NR operation in mmWave spectrum at 28 GHz, employing advanced 5G NR antenna technology to deliver robust and sustained mobile broadband communications, including non-line-of-sight (NLOS) environments and device mobility.
“We are excited to conduct early 5G NR trials based on the 3GPP specification with Qualcomm Technologies and Ericsson,” said Seizo Onoe, EVP and Chief Technology Officer, NTT DOCOMO. “NTT DOCOMO plans to deploy a 5G NR commercial system by 2020 and it is essential that the industry cooperate closely to create a 5G ecosystem in a timely manner. Through acceleration of the standardization and standard-compliant 5G NR trial activities, we will ensure the highly-stable 5G services.”
https://www.nttdocomo.co.jp/english/info/media_center/pr/2017/0227_02.html
