Feb, 14 2018 13:54 JST

Source: NEC Corporation

NEC Develops Low-power Consumption Circuit Technologies for Compact Millimeter-Wave Radio Units

- Enabling greater installation flexibility -

TOKYO, Feb, 14 2018 - (JCN Newswire) - NEC Corporation (TSE: 6701) today announced it has reduced the size of the millimeter-wave radio units for fifth-generation (5G) mobile communications, and has developed low power consumption circuit technologies that improve installation flexibility.

5G is expected to enable large capacity communications that measure up to several tens of gigabits per second (Gbps) by taking advantage of wideband millimeter-wave technology. However, an increase in the power consumption of wireless circuits results in larger equipment due to the expanded size of the heat dissipation mechanisms. This poses a challenge as there is limited space for the installation of radio units.

Newly developed low-power circuit technologies reduce the overall power consumption of the millimeter-wave radio unit, leading to a smaller heat dissipation mechanism in the wireless circuit. This allows the body of the millimeter-wave radio unit to be as small as that of LTE radio units. As a result, it enables the millimeter-wave radio unit to be installed in places that are usually considered difficult, such as streetlights and telegraph poles, in addition to conventional building rooftops.

Major features of the technologies are shown below:

1. Reduces power consumption of millimeter-wave wideband amplifier to one fifth
NEC developed wide-band digital pre-distortion technology where a power amplifier's distortion outside an observation band is estimated and suppressed by using only in-band signals. This enables power amplifiers to operate with both high efficiency and low distortion, which conventional amplifiers cannot achieve. Consequently, this permits signal quality to be secured with low power consumption, while reducing power consumption of the amplifier to approximately one fifth when compared to conventional devices.
2. Reduces power consumption of analog wireless circuits to half
NEC applied a 1-bit digital transmitter(1), which eliminates the need for digital-to-analog converters, to a millimeter-wave wideband communication system, and successfully reduced the overall power consumption of analog wireless circuits to approximately half, compared to that of commercial products with digital-to-analog converters.

"NEC aims to see these technologies deployed with wireless base stations that contribute to the construction of 5G mobile networks throughout the world," said Yuichi Nakamura, General Manager, NEC System Platform Research Laboratories.

NEC will present these technologies at Mobile World Congress (MWC) 2018 in Barcelona, Spain, from Monday, February 26, 2018 to Thursday, March 1, 2018.

(1) 1-bit digital transmitter
http://www.nec.com/en/press/201406/global_20140602_02.html


About NEC Corporation
NEC Corporation is a leader in the integration of IT and network technologies that benefit businesses and people around the world. The NEC Group globally provides "Solutions for Society" that promote the safety, security efficiency and fairness of society. Under the company's corporate message of "Orchestrating a brighter world," NEC aims to help solve a wide range of challenging issues and to create new social value for the changing world of tomorrow. For more information, visit NEC at https://www.nec.com.


Contact:
NEC 
Seiichiro Toda         
[email protected] 
+81-3-3798-6511
Source: NEC Corporation
Sectors: Telecoms, Mobility/Wireless

Copyright ©2018 JCN Newswire. All rights reserved. A division of Japan Corporate News Network.

Related Press Release


NEC and Hortonworks to Co-develop High Performance Analytics Platform for Big Data with SX-Aurora TSUBASA
October 15 2018 11:37 JST
 
NEC C&C Foundation Awards 2018 C&C Prize
October 10 2018 10:33 JST
 
NEC Provides LoRaWAN-Compliant Network Server for Trials of Remote LP Gas Meter Reading
October 10 2018 09:14 JST
 
NEC Hosts C&C User Forum and iEXPO 2018 in Tokyo
October 09 2018 18:08 JST
 
NEC Joins Cyber Threat Alliance (CTA) for Sharing Cyber Threat Information
October 05 2018 11:11 JST
 
NEC Completes World's First Submarine Cable Crossing the South Atlantic
October 01 2018 17:25 JST
 
NEC Outlines "Materiality" for Accelerating Social Value Creation
September 28 2018 18:30 JST
 
NEC Maintains "Gold" CSR Rating by EcoVadis for Advanced Sustainability Performance
September 28 2018 09:19 JST
 
NEC Empowers Smart Digital Transformation in Business and Society at GITEX 2018
September 27 2018 15:31 JST
 
NEC Showcases Aviation Security Solutions at AVSEC World Day and GAPS in Greece
September 26 2018 14:42 JST
 
More Press release >>

Latest Press Release


More Latest Release >>