DOCOMO and MediaTek Achieve World's First Successful 5G Trial Using Smartphone-Sized NOMA Chipset-Embedded Device to Increase Spectral Efficiency

Nov 03, 2017 11:47 JST

Source: NTT DOCOMO

- New momentum for development of commercial 5G services -

TOKYO, Nov 03, 2017 - (JCN Newswire) - NTT DOCOMO, INC. announced today that in a joint trial conducted with MediaTek Inc. it has successfully developed a chipset to increase the spectral efficiency of mobile devices by up to 2.3 times compared to existing LTE technology. The chipset combines DOCOMO's non-orthogonal multiple access (NOMA) radio access technology and MediaTek's multi-user interference cancellation (MUIC) technology, which is required to achieve NOMA.

NOMA multiplexes signals at a base-station transmitter to leverage the increased signal processing capacity of user devices and cancel interference among multiplexed user signals. MUIC removes interference from other users when a base station transmits a signal to a number of users simultaneously.

During the trial, three smartphone-sized devices embedded with the chipsets, each placed in a different location, received data that was transmitted simultaneously from a base station using the same frequency, while the transmission power of the signal transmitted to each device was adjusted. Using the developed chipset, each device successfully eliminated interfering signals intended for the other devices and received only the intended data, resulting in up to 2.3 times greater spectral efficiency than that of single-user Multi Input Multi Output (MIMO).

DOCOMO is forging ahead with its development of 5G technologies, aiming to increase the signal processing capacities of user devices in populated urban areas and standardize 5G's radio interface and improve spectral efficiency. Going forward, DOCOMO will continue to collaborate with world-leading vendors in its research and development of commercial 5G communications devices and services scheduled to launch in 2020.

Contact:

NTT DOCOMO
International PR
Public Relations Department
Tel: +81-3-5156-1366    
Fax: +81-3-5501-3408
URL: www.nttdocomo.com

Source: NTT DOCOMO
Sectors: Wireless, Apps

Related Press Release

DOCOMO, NTT, NEC and Fujitsu Develop Top-level Sub-terahertz 6G Device Capable of Ultra-high-speed 100 Gbps Transmission

April 11 2024 14:10 JST

DOCOMO to Conduct Open RAN Field Trials with Ooredoo, Smart and StarHub

February 27 2024 18:53 JST

NEC Selected by NTT DOCOMO as a Virtualized Radio Access Network (vRAN) Vendor

February 26 2024 16:54 JST

DOCOMO and NTT Expand 6G Collaborations with SK Telecom and Rohde & Schwarz

February 22 2024 14:33 JST

Successful demonstration of computing and mobile networks convergence to provide diverse services in the 6G era

February 22 2024 12:18 JST

NTT DOCOMO and SK Telecom Release White Paper on Base Station Equipment Utilizing Virtualization Technology

February 20 2024 14:32 JST

Arsaga Partners, Tokyu Land, NTT and DOCOMO to Explore Collaboration for R&D to Create Services with IOWN

February 14 2024 14:40 JST

DOCOMO to Collaborate with AT&T, Verizon and Jio for Open RAN Verifications

February 13 2024 14:38 JST

DOCOMO to Exhibit at MWC Barcelona 2024, World's Largest Mobile Exhibition

January 17 2024 08:12 JST

DOCOMO's New AI Generates Images of Predicted Changes in the Brain

January 16 2024 15:32 JST

More Press release >>

Latest Press Release

Mazda Production and Sales Results for March 2024 and for April 2023 through March 2024
Apr 25, 2024 18:21 JST

MHI Begins Operation of SOEC Test Module the Next-Generation High-Efficiency Hydrogen Production Technology at Takasago Hydrogen Park
Apr 25, 2024 17:45 JST

GAC Honda to Begin Sales of All-new e:NP2, the Second Model of e:N Series
Apr 25, 2024 16:50 JST

Toyota Exhibiting at Beijing Motor Show 2024
Apr 25, 2024 16:25 JST

Honda Reaches Basic Agreement with Asahi Kasei on Collaboration for Production of Battery Separators for Automotive Batteries in Canada
Apr 25, 2024 11:10 JST

UNIQLO Sponsors KAWS + Warhol Exhibition Tour, Starting in Pittsburgh
Apr 25, 2024 09:00 JST

Mitsubishi Power Begins Commercial Operation of Seventh M701JAC Gas Turbine in Thailand GTCC Project; Achieves 75,000 AOH To-Date
Apr 24, 2024 17:19 JST

MC and Denka Sign J/V Agreement in Fullerene Business
Apr 24, 2024 17:02 JST

Mitsubishi Motors Posts Record Sales in the Philippines in FY2023
Apr 24, 2024 13:56 JST

NEC Develops High-speed Generative AI Large Language Models (LLM) with World-class Performance
Apr 24, 2024 13:25 JST

Fujitsu SX Survey reveals key success factors for sustainability
Apr 23, 2024 10:25 JST

Fujitsu and METRON collaborate to drive ESG success: slashing energy costs, boosting productivity with new manufacturing industry solutions
Apr 22, 2024 16:09 JST

NEC Strengthens Commitment to Space Industry with Investment in Seraphim Space Venture Fund II
Apr 22, 2024 15:09 JST

Soft Space Launches the First and Only JCB Payment Gateway in Malaysia
Apr 22, 2024 15:00 JST

TOYOTA GAZOO Racing takes a one-two in Croatian thriller
Apr 22, 2024 10:47 JST

First-ever Mazda CX-80 Crossover SUV Unveiled in Europe
Apr 19, 2024 13:50 JST

Fujitsu develops technology to convert corporate digital identity credentials, enabling participation of non-European companies in European data spaces
Apr 19, 2024 10:17 JST

Mitsubishi Heavy Industries and NGK to Jointly Develop Hydrogen Purification System from Ammonia Cracking Gas
Apr 18, 2024 17:01 JST

Toyota Launches All-New Land Cruiser "250" Series in Japan
Apr 18, 2024 13:39 JST

Fujitsu and Oracle collaborate to deliver sovereign cloud and AI capabilities in Japan
Apr 18, 2024 11:14 JST

More Latest Release >>