Compared with ground communication tower, airborne mobile communication tower has many advantages. They can be moved to larger areas where they need to be. However, although the concept has been around for many years, the technology is still developing. But today, Google’s parent company, alphabet, and Softbank, a Japanese technology giant, announced a small milestone in their efforts to fly a mobile phone tower, running a stable LTE connection from a solar powered UAV 62000 feet high in the stratosphere. This is a good enough connection to support an international video call with participants from Japan and the United States, including Vincent Cerf, one of the fathers of the Internet. < / P > < p > the test is part of a partnership between alphabet’s Loon and Softbank’s haps mobile, which was first announced in April 2019. Loon is known for its balloon based mobile phone tower, which provides communication payloads, while haps mobile makes airplanes. The result is sunglider, a giant autonomous solar powered UAV designed to stay in the air for months. This giant aircraft looks like a giant wing, about 78 meters (255 feet) wide. It is powered by 10 propellers and has a top speed of 110 km / h (68 mph). Although this is quite slow for aircraft, sunglider (formerly hawk30) is designed for endurance rather than speed. It will hover in the upper stratosphere above commercial flights, charge its batteries with solar energy and adjust itself to wind direction. According to hapsmabile, the success of LTE test is the first in the world for a fixed wing autonomous aircraft. With stratospheric wind speeds of more than 58 knots (about 30 meters per second) and temperatures as low as – 73 degrees Celsius, the payload was carried out as planned. Once an LTE connection is established, it is used to support video conferencing. Participants used ordinary smartphones to make calls, including the external director of Loon CEO Alastair Westgarth; hapsmobile; father of the Japanese Internet & quot; Jun Murai; and Cerf, Google’s vice president and chief Internet Evangelist. Haps mobile claimed that the call was & quot; high definition & quot; and & quot; low latency & quot; but it did not provide details of the connection speed. In a press statement, Junichiro Miyagawa, chief executive and President of HAPS mobile, said the test flight was a step closer to achieving its goal of building a green aircraft and providing high-speed Internet anywhere in the world. Global Tech

By ibmwl