Multibeam multiplexing expertise allows high-speed, high-capacity communications over 10Gbps and reduces energy consumption by 30%

Fujitsu Limited

Tokyo, August 28

Fujitsu Limited introduced the event of a brand new millimeter-wave chip for 5G that helps multibeam multiplexing (excluding polarization multiplexing ⁽¹⁾), enabling as much as 4 beams to be multiplexed by a single millimeter-wave chip for the radio models (RU) of 5G base stations. The growth was undertaken as a part of the “Research and Development Project of the Enhanced Infrastructures for Post-5G ⁽²⁾ Information and Communication Systems” ⁽³⁾ commissioned by Japan’s New Energy and Industrial Technology Development Organization (NEDO).

With standard applied sciences, a single millimeter-wave chip is used to generate a single beam, leading to bigger RUs and elevated energy consumption. When the newly developed expertise is utilized to precise base stations, Fujitsu demonstrated that it’s potential to realize excessive pace and excessive capability communications of 10Gbps or extra with a half the scale of a standard RU. This permits for techniques with fewer millimeter-wave chips, which finally results in reductions in energy consumption per RU by 30%.

Figure 1: Comparison picture of RU utilizing a standard millimeter-wave chip and RU making use of this expertise

Project Background

5G community applied sciences are anticipated to realize increased speeds and capability by successfully using wi-fi sources within the millimeter-wave band. While this method gives the potential to considerably enhance communications pace and capability, millimeter and different high-frequency radio waves are usually blocked by obstacles, making it troublesome to speak between nice distances. One potential method to resolving this problem contains masking one space with a bigger variety of radio base stations, which might assist tackle points reminiscent of the necessity to miniaturize RUs, power financial savings, and value reductions. To tackle these challenges, from June 2020 to June 2023, Fujitsu Limited labored to develop applied sciences that improve the efficiency of RU underneath a undertaking initiated by NEDO, which can be utilized in info and communications techniques that help 5G. Fujitsu’s analysis resulted within the growth of a expertise that allows a number of beam multiplexing on a single chip by millimeter-wave beamforming ⁽⁴⁾, making it potential to ship 4 occasions the pace and bigger capability than a standard RU of the identical measurement to ship important power and value reductions.

Future Plans

Kicking off growth of base station {hardware} geared up with this expertise from August 2023, Fujitsu goals to start industrial deployment of RUs utilizing the expertise globally in fiscal 2024, and contribute to the unfold of millimeter-wave within the international market and decarbonization of the telecommunications business. Subsequently, the beam multiplexing expertise can be utilized to base station (CU/DU) merchandise, and can be provided globally in fiscal 2025. In addition to contributing to the discount of the carbon footprint of telecommunications carriers and different industrial customers, Fujitsu will proceed to develop applied sciences to advance the community business and contribute to the fast deployment of next-generation communications infrastructure.

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Date: 28 August, 2023

City: Tokyo, Japan

Company: Fujitsu Limited