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| 1 | JMA Wireless challenges non-U.S. telecom vendors with its vRAN (簡訳:JMA Wirelessは、そのvRANで米国外の通信ベンダーに挑戦しています) | ----------- | |
| FierceWireless: Wireless | 2019-04-24 23:30 | ????0? | |
| Todd Landry, corporate vice president for product and market strategy at JMA Wireless, said the company started looking at the evolution of the RAN about four years ago, and came to the conclusion that it made the most sense to do everything in software. “We pretty much transformed our company into a virtual RAN platform company,” said Landry. “We now have all the pieces in networks today to cover 600MHz to mmWave spectrum. We’re the only American company doing that.”Landry said there are three different approaches to building the RAN today. First is the traditional approach taken by companies that provide proprietary hardware integrated with software. For example, Ericsson delivers such integrated systems. The company recently boasted that it made bets on hardware while the NR Release 15 standards were being worked out. And now Ericsson’s Radio System products delivered since 2015 are able to support 5G NR capability through a remote software installation.The second approach to the RAN is a hybrid with some parts virtualized and other parts based on proprietary hardware. An example of this approach would be Mavenir. The company wants to disrupt the mobile industry with baseband units that are comprised of common-off-the-shelf servers with open software running on top. Mavenir’s focus is on providing software for the computational parts of the RAN. For the radios, Mavenir works with an ecosystem of third-party vendors.In terms of the lower layers of the baseband, Landry said, “You have to figure out how to modulate which bits into which areas of phase and time of the spectrum which connects to the mobile phones out there. It’s a very dynamic situation. Sometimes it’s easier to do in hardware. We took the act of engineering all the layers in software. We don’t need to use an FPGA. It just runs in software.” He said JMA virtualizes Layers 1, 2, and 3 of the baseband unit.About a year ago JMA worked with Telecom Italia in Bologna, Italy to install its virtualized RAN software on a two-rack unit in Telecom Italia’s headend. “We turned up cellular service in the entire downtown area where hundreds of thousands of connected users come through that area every day,” said Landry. “It’s actually commercialized, and it’s live today.” -- ???????? | |||
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