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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    Inmarsat unveiled plans for ORCHESTRA, what it calls the communications network of the future. In a large transformation of its current services, Inmarsat ORCHESTRA will bring together existing geosynchronous (GEO) satellites with low earth orbit satellites (LEO) and terrestrial 5G into an integrated, high-performance solution.

    Inmarsat says, whether for a ship in a crowded port, an aircraft preparing to land at LAX, or a defence force deployed in a remote location, ORCHESTRA is designed to meet evolving connectivity needs in the mobility market with a service unmatched by any competitor offering, planned or in existence.

    Inmarsat CEO Rajeev Suri said, “An orchestra brings different instruments together, each supporting the other and playing its role in the masterpiece. We’re building ORCHESTRA on the same concept.

    {loadposition chris08}

    “By combining the distinct qualities of GEO, LEO and 5G into a single network, we will deliver a service that is far greater than the sum of its parts. Our customers will benefit from dramatically expanded high throughput services around the world.

    "This is the future of connectivity and Inmarsat is perfectly positioned to bring it to the world with its proven technology expertise, right base of customers and partners, and financial strength.”

    Inmarsat continued, ORCHESTRA will open up a host of new and previously unattainable possibilities for industries across the world. New services include close-shore navigation for autonomous vessels, next-generation emergency safety services for maritime crews, secure and tactical private networks for governments and direct-to-cloud connections for airlines. New segments set to benefit from ORCHESTRA include energy rigs and drilling platforms, mid-market business aircraft, coastal vessels, smart passenger ships and urban air mobility.

    Inmarsat says, ORCHESTRA is unique because it draws together the benefits of multiple technologies to create one cohesive solution. LEO, GEO and terrestrial networks have never been combined at scale before to create a unified connectivity service for mobility customers. The result is a ‘dynamic mesh network’ that will deliver high-performance connectivity everywhere. Bringing together the lowest average latency and fastest average speeds with unique resilience, ORCHESTRA will eliminate the industry-wide challenge of congested network ‘hot spots’.

    Inmarsat’s existing GEO satellites – both GX and L-band - will continue to provide global coverage, high performance, security and resilience. Terrestrial 5G adds ultra-high capacity in busy ‘hot spots’, such as ports, airports, and sea canals. A small constellation of LEO satellites will layer additional high capacity over further high-demand areas such as oceanic flight corridors. As a result, the network will offer high capacity for mobility users worldwide, and at ‘hot spots’.

    Inmarsat said, "The network will benefit from ‘dynamic mesh’ technology, which allows individual customer terminals to direct traffic to and from other customer terminals. This means that a ship within reach of a 5G ground station can receive ample capacity for its own needs as well as route capacity onwards to other vessels beyond terrestrial reach. This effectively creates a mobile web of terminals that extend the network’s reach and improve its performance and resilience.

    “ORCHESTRA ensures Inmarsat is well positioned to deliver long-term, profitable growth by delivering new services to existing customers, targeting near-adjacent market segments, and maintaining a strong competitive position.

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    Inmarsat concluded, the new approach means that Inmarsat can easily boost capacity in high-density areas such as ports and airports, ensuring customer needs continue to be met well into the future with capacity scaled directly to match their requirements. The initial five-year (2021-2026) total investment for ORCHESTRA is expected to be in the order of $100m.

  • Small Cell Forum releases key test setups for 5G RAN Split 6 products
    in 5G

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    {loadposition chris08}

    SCF228 S-RU and S-DU Test Support:

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    “The test methodology recommended in this paper enables vendors to perform conformance testing without requiring any specialised test mode on their S-RU, thus removing a major pain point in the development and deployment process.” added Keysight Technologies chief architect Balaji Raghothaman.

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    {loadposition alex08}

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    The pilot program, in collaboration with Uber, will deliver the phones to existing customers near Optus stores in Sydney, Melbourne, and Brisbane via Uber Direct.

    Optus managing director of marketing and revenue Matt Williams notes that the company continues to push innovative options to create strong digital experiences for customers.

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    “Being able to order a new phone and have it in about an hour will set a new standard for convenience,” he says.

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  • Review: OPPO A74 offers 5G at a price which will not break the bank

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    The A74 supports both standalone and non-standalone 5G networks. Like the A54, it has a 5000mAh battery and both 60Hz and 90Hz refresh rates. The phone takes a couple of hours to fully charge when down to zero.

    {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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    flower not in good light

    By contrast, this picture, taken indoors on a gloomy day, does not look that good.

    Telstra is much higher, charging $65 per month for its basic plan. Neither telco has yet chosen to offer coverage in Doncaster, the suburb in which I live, and so the speed measurement was done in the adjoining suburb.

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    sky good detail

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    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


    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)


    System Memory (RAM) 6GB

    Internal Storage (ROM) 128GB

    External Memory up to 256GB microSD

    Flash Chipset Type UFS2.2


    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

    The speed on a 5G network beats the NBN by a huge margin.

    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



    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


    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


    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


    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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