Navini Offers WiMax Instant Service Provider Footprint.By Tony Cripps Renegade wireless broadband High-speed wireless transmission of data. What is "high" speed is always a changing number. Wireless systems are typically slower than land-based, wireline networks. In the past, wireless broadband started at 250 Kbps, whereas land-based broadband was generally considered to start at T1 networking vendor Navini Networks Inc has come in from the cold by joining the WiMax Forum. The decision should provide a ready-made service provider footprint for the mobile variant of the IEEE's 802.16 metropolitan area networking standard once it comes on stream. Navini, one of a band of so-called "4G" technology providers, plans to introduce products conforming to 802.16e specification to its existing Mbps non-line of sight wireless broadband offering, Ripwave. These will benefit from the use of Navini's low-cost smart antennas, based on adaptive phased array technology. The company will also offer a migration path from its own system to 802.16e, providing its service provider customers with a clear route to adopt the technology at a future point. Richardson, Texas-based Navini currently boasts upwards of 25 service provider converts to Ripwave around the world. Most recently, in March 2004, Irish Broadband This article or section needs sources or references that appear in reliable, third-party publications. Alone, primary sources and sources affiliated with the subject of this article are not sufficient for an accurate encyclopedia article. announced it intention to roll out Ripwave commercially across the whole of Dublin. February saw Mexican wireless cable television provider Ultravision and southern US telecoms provider and ISP (1) See in-system programmable. (2) (Internet Service Provider) An organization that provides access to the Internet. Connection to the user is provided via dial-up, ISDN, cable, DSL and T1/T3 lines. NTELO. Navini's endorsement of WiMax is significant at a time when the technology is too new for mass deployment. Equipment adhering to the much anticipated 802.16d version of the standard is not currently expected to reach the market in volume until next year. 802.16 has the backing of industry luminaries such as Intel and Nokia while some service providers, including AT&T, have also joined the WiMax Forum. Navini's decision to support WiMax makes sense. Its Ripwave system, while based on proprietary time division duplexing Time division duplex Time division duplex (TDD) is the application of time-division multiplexing to separate outward and return signals. It emulates full duplex communication over a half duplex communication link. technology known as multi-carrier synchronous CDMA (Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800 MHz band and 1.9 GHz PCS band. , is designed with similar applications in mind to 802.16. It is interesting, though, that Navini has never played heavily on the mobility aspect of wireless broadband technology. However, the ability to roam freely between cells and to maintain online access while in motion is an important feature of 802.16e. Previously, Navini has been a key player, along with "4G" rivals Flarion and ArrayComm, in the creation of an alternative wireless broadband standard, known as 802.20 or Mobile Broadband Description Mobile Broadband is a type of wireless internet access that differs from Wi-Fi. Mobile Broadband is the name used to describe the 3G services which are made possible by HSDPA and HSUPA, the latest technologies on the W-CDMA evolutionary path. Wireless Access. However, the future of the 802.20 project is currently unclear after the representatives of Navini, ArrayComm and Flarion were voted out of office in June 2003 to be replaced by representatives of Lucent, NTT DoCoMo (NTT Mobile Communications Network, Inc., Japan) Founded in 1991, NTT DoCoMo is a spinoff of Japan's NTT (Nippon Telegraph and Telephone Corporation) which provides wireless services, including cellular, paging, satellite and maritime and in-flight telephone services. , and a former senior Motorola executive. This outcome was viewed by 802.20 supporters as a "political coup" to suppress development of the technology by 3G and 802.16e equipment vendors that had managed to gain voting rights Voting rights The right to vote on matters that are put to a vote of security holders. For example the right to vote for directors. voting rights The type of voting and the amount of control held by the owners of a class of stock. . |
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