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| 149 | Loon, HAPSMobile deliver LTE from fixed-wing aircraft in stratosphere (簡訳:ルーン、HAPSMobileは成層圏の固定翼航空機からLTEを提供します) | --- | |
| FierceWireless: Wireless | 2020-10-10 02:00 | ????0? | |
| Loon started as a project within Google and graduated to become part of Alphabet. Loon, along with HAPSMobile, on Wednesday announced they successfully tested a jointly developed communications payload in the stratosphere on HAPSMobile’s “Sunglider.” The Sunglider is a solar-powered unmanned aircraft system (UAS).“Using the stratosphere for the mobile internet is going to be the next most innovative challenge, and it will add to the existing and achieved innovations of the internet,” Murai said in a statement, noting that the connection resulted in a high-resolution call, with smooth video and “practically no latency,” which will be ideal for internet service and disaster recovery in the future.The test flight used MIMO technology, and the payload enabled LTE connectivity to be delivered continuously for about 15 hours during Sunglider’s flight. Engineers report that it worked as planned, which is saying something – wind speeds at times were greater than 66 mph and temperatures were as low as -73 degrees Celsius (-99 Farenheit).FCC records show Loon obtained permission earlier this year to evaluate the performance of 700 MHz spectrum from Spaceport America. Loon at that time told the FCC that its experiments involving 700 MHz spectrum complemented ongoing tests already approved by the FCC involving E-band spectrum to interconnect between Loon HAPS balloons and ground terminals. -- ???????? | |||
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