Tests and Measures: Softbank Autonomous Blimp Tests



Softbank, which has continued its interest in high-altitude communications, said it has Successfully tested a tetherd autonomous aerostat During the field trial in Japan.

Working with US-based Altaeros Energies (of which Softbank is an investor), the two companies say they “achieved stable and wide-area network coverage” with Tedard Blimp during testing at the Hokkaido Spaceport in Taiki Town, Hokkaido, Japan in May.

Softbank’s telecom payload was carried by Altaeros Energies tethered aerostat. Photo: Softbank

The experiment relied on an autonomous tethered aerostat from Altaeros, equipped with a softbank base station and proprietary cylindrical, multi-component phased array antennas. The technology has been developed by both Softbank and its affiliate HAPSMobile, Softbank noted.

Compared to an older iteration of the aerostat-based system, Softbank said the new system “operated at higher altitudes and carried a heavier communication payload, and it achieved wider area network coverage with greater communication stability during testing.”

The aerostat was connected at an altitude of 249 meters, and Softbank reported that in good line-of-site conditions within “a few tens of kilometers”, it verified that the test achieved “stable connection” so that no mobile device was transferred and the height of the blimp due to wind Or change in orientation but the level of signal reception was constant.

Other test news:

-China third party test room World Standardization Certification and Testing Group (WSCT) Will be used KeySite Technologies‘5G testing solutions to certify 5G mobile devices, as well as comply with EU regulations for testing EU E112 caller location capabilities.

Kissite too Announcement This week the Italian certification services company Azcom Technology is using its KeySite Open Radio Architect (KORA) solutions to test open radio access network radio and distribution units and to ensure specification conformity and interoperability.

In addition, the company reports that its Pathwave RFPro solution, has been merged with Synopsis’ Offer custom compiler design, Supports chipmaker Of TSMC New N6RF reference design. Keysight says it and Synopsys Keysight PathWave RFPro have created custom designs with integrated electromagnetic (EM) analysis and the ability to model custom radio frequency (RF) devices. Keysite also contributed to the detailed application notes for implementation.

“Integrated EM simulation is needed to verify and optimize the parasitic effects found in today’s multi-technology RF designs. Repeatable EM-circuit co-simulation helps designers ensure first-pass success, and this interoperability is a testament to the collaboration between TSMC, Synopsys and Keysight, “said Nils Fache, VP and GM at Keysight’s PathWave Software Solutions.

-Japanese operator NTT Docomo Will be used Vivi SolutionTest suite for end-to-end testing 5G Open RAN Ecosystem (OREC), A project launched in 2021 consisting of 13 vendor partners. According to Viavi, its test suite will ensure that the NTT DoCoMo 5G can support the requirements of multiple international operators to participate in open RAN testing. The full story is here.

– Product engineering and manufacturing companies VVDN (Voice, Video, Data, Network) Dr. this week Is planning to expand its activities in Europe, With the goal of bringing in $ 500 million in new revenue from the region. Nitin Jain, VP of business development for the company’s 5G and data centers in Europe, said, “We see the Europe 5G market as a huge growth prospect. With VVDN’s firm foothold in 5G design, it examines service offers on oRAN. [radio units] And [distributed units] With our Fronthall, L1 Low PhY and High PHY IP, we can help guide OEM, telco, testing and measurement companies through the complexities of designing, developing and producing 5G products. “

The company has also opened New 5G test lab in India Open RAN earlier this year focused on the radio unit.

Inside Recently said that it has Patented a new measurement technique It states that it provides the best-in-class error vector magnitude (EVM) performance for Wi-Fi signals, improving both accuracy and measurement speeds to enable device manufacturers to guarantee Wi-Fi 7 (802.11be) specification and get products Fast market.

“One of the most challenging RF performance measurements in the new WiFi7 design is the EVM measurement over wide RF bandwidth,” NI said. Its patented measurement technique relies on the use of two NI vector signal transceivers and “uses cross-relationship signal processing to improve measurement accuracy and achieve Wi-Fi 7 performance specifications” while minimizing the time it takes to perform extremely high dynamic range. Wide bandwidth measurement.

US Cellular And Erickson Carriers have begun testing the performance of 5G networks at altitude using drone technology. The trials involved flying a drone with a 5G smartphone and RF measuring equipment between two commercial 5G towers of U.S. Cellular in Bellevue, Wisconsin. Read more on this story.


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