Thursday, 24 June 2021 17:38

NEC new 5G massive MIMO radio units for O-RAN

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NEC announced the launch of new radio units (RU) for 5G base stations that are geared for global markets and are scheduled to be available in 2022.

In terms of functionality, the new RUs will be compatible with the n77, n78 and C-Band 3.7GHz frequency band (3.3-4.2GHz), which is globally used as a 5G frequency. In addition, ultra-multi-element antennas utilising Massive Multiple Input Multiple Output (MIMO) and digital beam-forming for high-precision beams will help to provide high-speed, high-capacity communications between a wider range of terminals.

Also, the new RUs will feature higher output and wider bandwidth when compared to conventional products, thereby expanding the communications area and providing high-speed transmission. NEC's proprietary high-density mounting technology, power saving technology, and fanless design will also enable a compact format that is lightweight and power efficient.

The RUs will conform to O-RAN fronthaul interface specifications defined by the O-RAN Alliance and will be compatible with base station equipment from different vendors, making it possible to realise open, flexible and optimised networks according to a wide range of use cases.

NEC VP of product management 5G products Patrick Lopez said: "NEC has long been developing 5G base station equipment for global markets. As illustrated by the announcement from Vodafone earlier this month, NEC is investing to maintain a market-leading position in the Open RAN ecosystem."

When MIMO technology is implemented as beam-forming, it enables multi radio beams and stabilises radio propagation paths using a massive number of transceivers. This has the benefits of improving the radio signal at the user, by focusing the transmitted power onto the users, rather than evenly distributing the transmitted power across a sector. This in turn, enables higher coding schemes to be maintained to users, increasing the capacity of the cell and improving the speed from a user's perspective. Beam-forming MIMO is one of the developments that NBN Co could deploy to improve their capacity constrained fixed wireless network.

For more information on the NEC solution, visit the NEC Mobile World Congress 2021 Virtual Stand

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    {loadposition chris08}

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    in 5G

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    {loadposition chris08}

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    {loadposition sam08}The device has 6.5-inch 1080 x 2400 LCD screen. The refresh rate automatically drops it down to 60Hz in the case of apps that are not compatible with the higher refresh rate.

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    SPECS

    Device A74 5G

    Model Code CPH2197

    Colour Fluid Black / Space Silver

    Chipset (make/ model) Qualcomm SDM480

    Baseband Chipset Qualcomm SM4350

    RF Platform Vendor and Model Snapdragon X51 5G Modem-RF System

    GPU Adreno 619

    Dimensions 162.9x74.7x8.4mm

    Weight 190g

    a74 long fluid blackOperating System/ ColorOS Android 11 / ColorOS 11

    Display

    Screen Size (inches)/ Pixels 6.5" 2400*1080, FHD+, LTPS-LCD

    Screen Refresh Rate 60Hz/90Hz

    PPI 405

    Aspect Ratio 20:9

    Max Brightness Normal: 480cd/m2 HBM: 550cd/m2

    Screen Contrast 1500:1

    Touch Panel Type in cell

    Touch Points 10

    Gesture Control Yes

    Display Durability Panda Glass MN228 (TBC)

    Memory

    System Memory (RAM) 6GB

    Internal Storage (ROM) 128GB

    External Memory up to 256GB microSD

    Flash Chipset Type UFS2.2

    Camera

    Rear Camera Setup 48MP + 8MP + 2MP + 2MP

    Rear Camera Sensor 48MP CMOS/ OV48B2Q + 8MP CMOS/Hi-846 + 2MP CMOS/GC02M1B + 2MP CMOS/OV02B10"

    Rear Camera Sensor Size 48MP(1/2") + 8MP(1/4") + 2MP(1/5'') + 2MP(1/5")

    Rear Camera Field of View 48MP(79.8°)+8MP(119.9°)+2MP(88.8°)+2MP(88.8°)

    Rear Camera Video Mode 1080p @ 30fps

    5g wifi fast

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    Front Camera Setup 16MP(f/2.0)

    Front Camera Type Punchole

    Front Camera Sensor CMOS/IMX471

    Front Camera Field of View 16MP(79.3°)

    Front Primary Camera Video Mode 1080P/720P@30FPS>

    Flash LED

    GPS

    GPS / GLONASS / BDS

    E-compass Yes

    Gyrometer Yes

    Barometer Sensor No

    Light and Proximity Sensor Yes

    Side Key Yes

    Vibration Yes

    Audio Jack Yes (NAHJ)

    USB Type/ Version Type-C / USB 2.0

    Fingerprint Sensor Side-mounted

    Fingerprint Sensor Type Capacitive

    OTG Yes

    Noise cancelling microphone YES

    Speaker Quantity (mono/ stereo) 1,mono

    Audio Recorder Yes

    a74 silver horizontal

    The silver OPPO A74 model. Supplied

    Audio Format (PLAYBACK) 3GP/MP4/M4A/AAC/TS/FLAC/GSM/MID/XMF/MXMF/RTTTL/RTX/OTA/IMY/MP3/MKV/WAV/OGG/

    Video Format (PLAYBACK) 3GP/MP4/WEBM

    Audio Codec AAC LC/HE-AACv1 (AAC+)/HE-AACv2 (enhanced AAC+)/AAC ELD (enhanced low delay AAC)/AMR-NB/AMR-WB/FLAC/GSM/MIDI/MP3/Opus/PCM/WAVE/Vorbis

    Video Codec H.263/H.264 AVC
    Baseline Profile (BP)
    Main Profile (MP)/H.265 HEVC/MPEG-4 SP/VP8/VP9

    Network

    GPRS Class12, Speed up to 85.6Kbps

    EDGE Class12, Speed up to 236.8Kbps

    HSDPA Category CAT24

    HSUPA Category CAT6

    2G Bands/ Frequencies 850/900/1800/1900

    3G Bands/ Frequencies 1/2/4/5/6/8/19

    4G Bands/ Frequencies 1/2/3/4/5/7/8/12/17/18/19/20/26/28/66 38/39/40/41

    5G Bands/ Frequencies n1/3/5/7/8/20/28 n38/40/41 n1/3/7/28

    n41 No

    Maximum CA support 4CA/DL & 2CA/UL

    VoLTE/ ViLTE/ VoWiFi Yes Yes Yes

    Power Class PC3 PC3

    Simultaneous PDP Yes

    Multiple RAB Support Yes

    GSM Release Rel99

    WCDMA Release Rel9

    RCS Yes (Android Message)

    EVS Yes

    WB-AMR Yes Yes

    Connectivity

    NFC Yes

    IrDa (infrared) No

    Bluetooth BT5.1

    BT Hotspot Yes

    Wi-Fi (bands, *a/b/g/n/ac/ax) 802.11a/b/g/n/ac

    Wi-Fi Hotspot Yes

    VPN Yes

    Wi-Fi Direct Yes

    Wi-Fi Display Yes

    DLNA Yes

    WPS Yes

    SIM Lock Yes

    Dual SIM No

    SIM Card Type Nano-SIM

    Power Management

    Battery Size/ Type 5000mAh

    Charger details 9V/2A @18W

    VOOC No

    Super VOOC No

    Wireless Charging No

    Inside the box

    Wall Charger Yes

    Data Cable Yes

    Headphones Yes

    Case Yes

    Screen Protector Yes

    User Manual Yes

    Warranty Card Yes

    Mobile Muster Card Yes

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