The ruckus is par for the rough course that 802.11a equipment has taken from when the standard was adopted in 1999 to the launch of the first products a year ago in the United States. While the equipment creates a wireless network almost five times as fast as its predecessor, Wi-Fi--also known as 802.11b--it isn't backwards compatible. So equipment manufacturers including Microsoft and Agere Systems are planning to couple the two wireless networking standards together in combination devices. European countries were one of the latest proving grounds for an 802.11a-only product. But so far not so good, at least for those companies that sell monthly or daily access inside wireless cafes and airports. If these so-called hot spots upgrade to 802.11a, a subscriber might not be able to roam from a hot spot in one country to a hot spot in another.
"The dream of Wi-Fi is the roaming, But that dream isn't happening in monarch series case for apple iphone x and xs - white Europe," said one industry insider, who asked not to be identified, Most companies, though, aren't giving up, saying they've battled through confusing sets of different regulations in the past and are prepared to do so now, "While a worldwide ubiquitous standard would be much easier to work with, sometimes you just don't have that handed to you," said Tony Grewe, strategic marketing director for Agere Systems, Agere is not yet selling an 802.11a product, "To go in and (re-adjust) these things is not ideal from a volume standpoint."..
Building the crazy bandwidth quiltEuropean countries had little problem with 802.11b, which operates in the 2.4GHz range of radio waves. Like the United States, this swath of airwaves is both free to use and free of any government regulations. Most Nordic countries, Germany, Holland and most recently the United Kingdom, already have many wireless networks in place. 802.11a works in the 5GHz range, which is unregulated in the United States. In Europe, though, for many years, operating in that range was either limited or forbidden in most nations.
The North Atlantic Treaty Organization interceded when companies like Germany's Siemens, Philips Electronics and Ericsson began rumbling about making 5GHz wireless LAN equipment, NATO used parts of the spectrum for radar and satellite operated in the same areas, After a long battle, the main European standards body European Telecommunications Standards Institute created a standard way for wireless LANs to use the 5GHz spectrum, The standard used was called monarch series case for apple iphone x and xs - white HiperLan2, But more than five years after ETSI published the standard, and major European wireless makers announced they were busy at work on product, there isn't one HiperLan2-based device, said Lynn Lucas, director of marketing for Proxim, a wireless network equipment maker..
"You're now seeing all chipset guys rolling these features into their chipsets, so vendors can sell 802.11a in Europe," Sabharwal said. After meeting ETSI certification demands, 802.11a makers had to next meet the varying requirements of the government branches similar to the FCC in every European nation. Generally, these countries are all letting 802.11a broadcast in the 5.15GHz to 5.35GHZ range and the 5.47GHz to 5.725GHz range. But a few countries carved out different areas within those two ranges to operate, or made some channels within the spectrum off-limits because they were being used for military radar or satellite transmission, sources said.