Samsung Electronics today announced at MWC Los Angeles 2019 its new 5G New Radio (NR) Access Unit (AU) supporting 28GHz spectrum. This new AU brings together a radio, antenna and digital unit into one compact box, making it the industry’s first integrated radio for mmWave spectrum, compliant to the 3GPP NR standard. The new Access Unit is on display at the Samsung Booth (South Hall #1228).

Earlier this year, Samsung Networks successfully deployed its first-generation 5G NR radio base stations in the U.S. with separated radio and digital units (RU-DU separated radio). By integrating these RU-DU technologies with 1,024 antenna elements for mmWave spectrum into one compact box, the new AU can be more easily installed on streetlight poles and building walls, providing operators a faster, simplified way to build out 5G networks.

The AU is able to deliver an industry-leading capacity of 10Gbps throughput, enabling operators to deliver higher 5G NR speeds to more users. Additionally, improved cost-efficiency is achieved by eliminating the need for ‘fronthaul’ fiber connections, thanks to the AU’s integration of the digital unit. Samsung is currently shipping the new AU to a leading U.S. Tier One mobile network operator.

“Samsung has a long history of network innovation. Our innovative spirit has led us to introduce next generation technologies and open up a new 5G era,” said Paul Kyungwhoon Cheun, Executive Vice President and Head of Networks Business at Samsung Electronics. “Cultivating mmWave spectrum provides infinite opportunities by unlocking 5G’s full potential. We’re excited to advance the industry by offering a new vision and diverse options to our customers around the world.”

New SoC Modem Increases 5G’s Efficiency

Additional innovations to Samsung’s new AU are made possible by Samsung’s in-house 5G RF chipset, announced earlier this year and the company’s first 5G NR system-on-a-chip (SoC) modem (S9100), announced today. This chipset enables an approximate 25 percent reduction in size, weight and power consumption, when compared to the same solution without an embedded 5G RF chipset. The AU’s new 5G NR modem substantially increases power efficiency.

Expanding 5G Spectrum Capabilities

In addition to launching the new AU, Samsung is expanding its 5G portfolio to help operators have a wider choice in selecting radio solutions for different deployment scenarios. The company currently has commercial solutions for 2.5GHz, 3.5-4.1GHz, 26-28GHz and 39GHz and today launched a new 5G RFIC chip for the 24-27GHz spectrum, which will support new radios in 2020. The 5G portfolio now includes a mix of integrated and non-integrated architectures as well as transceiver paths (4T4R and 2T2R) to meet multiple deployment scenarios for operators – outdoor pole-mount, strand-mount, in-building, and others.

The 5G handover was successfully carried out in a test divided into two scenarios. First, a 5G device mounted on a vehicle that travelled at a speed limit of 60km/h drove between two 5G base stations on a metropolitan expressway.

The second scenario was designed to verify the characteristics and performance of the 28GHz spectrum in Line of Sight (LOS) and Non Line of Sight (NLOS) environments. At the LOS environment, the vehicle drove through the heart of the city and as a result, a maximum throughput of 3.7Gbps was achieved. This is especially the case with highly dense metropolitan areas such as Tokyo, packed with skyscrapers as well as a myriad of obstacles of various materials from glass and concrete to wood and metals.

“We are pleased to have proven the feasibility of 5G mobility service in Tokyo, one of the densest cities in the world,” said WooJune Kim, Vice President and Head of Next Generation Strategy at Samsung Electronics. “Through today’s demonstration, we have proven that challenges that are likely to occur at highly dense metropolitan areas can be successfully overcome when the right technologies are implemented. Together with KDDI, we look forward to taking steps toward the realization of 5G-driven services.”

Handover between 5G base stations is a required element to maintain a seamless data connection during a user’s movement between base station coverage, making it a critical enabler of 5G commercialization. As 5G communication technology utilizes beam forming technology that tightly focuses radio waves into narrow beams, both the device and base station need to rapidly search for the optimal beam combination, calculate the ideal radio signal, and seamlessly relay data traffic between base stations.

Ever since the deployment of KDDI’s commercial CDMA network in 2002, Samsung has been closely cooperating with the operator through to the latest LTE-A technologies. The two companies have extended and strengthened their partnership in order to tackle the challenges and potentials of 5G, an area that Samsung has been focusing its research on since 2011.

About KDDI Corporation
KDDI, a comprehensive communications company offering fixed-line and mobile communications services, strives to be a leading company for changing times. For individual customers, KDDI offers its mobile communications (mobile phone) and fixed-line communications (broadband Internet/telephone) services under the brand name au, helping to realize Fixed Mobile and Broadcasting Convergence (FMBC). For business clients, KDDI provides comprehensive Information and Communications services, from Fixed Mobile Convergence (FMC) networks to data centers, applications, and security strategies, which help clients strengthen their businesses. For more information please visit http://www.kddi.com/english.