Se muestran los artículos pertenecientes al tema 5.4.2 WiFi ou WiMAX.
«(...) WiMax is even better than WiFi -- that very local wireless way computers and phones can connect to the Internet.
Jerry Del Colliano, Watch WiMax Inside Music Media, 17/04/08
«From NewsFactor.com: “The trademark ‘SprintSpeed’ could take on a whole new meaning in 2008, as the telecommunications firm moves ahead with plans to deploy its long-awaited WiMAX service, known commercially as Xohm. “[Recently,] the company announced at the Consumer Electronics Show (CES) in Las Vegas that a soft launch of the service to Xohm employees in Chicago, Baltimore and Washington, D.C., is now under way.
“The show in Las Vegas was a busy time for Sprint. In addition to the soft launch, the company has announced a number of new Xohm agreements** for portal services and WiMAX devices…
“The promise of WiMAX technology is remarkable: data transmission speeds as fast as 70 Mbps over distances as great as 50 kilometers. Transmission speeds do drop over distance, however, and it is a shared-bandwidth technology, so actual mileage may vary. A more common metric for the service is 10 Mbps over 10 kilometers. Nonetheless, WiMAX offers the potential for significantly faster and far-reaching wireless Internet than cellular data transmissions or the more well-known WiFi» fonte:
«The WiMax Forum said its lead certification lab is open for formal Mobile WiMax certification testing and evaluation of Mobile WiMax products.
The organization called this a step to bringing service providers closer to offering mobile broadband Internet to consumers.
That means vendors can begin submitting 2.3 GHz and 2.5 GHz Mobile WiMax equipment for testing.
The lab is at AT4 Wireless in Spain; four other labs are planned in the United States, Taiwan, China and Korea.
“With today’s announcement, certified Mobile WiMax products are projected to reach the commercial market in early 2008. The WiMax Forum expects hundreds of products to be submitted for testing,” it stated, calling the announcement an important milestone, particularly “relative to alternative mobile broadband technologies such as LTE which are several years behind WiMax technology.”
The Forum says 300 operators in 65 countries have deployed Mobile WiMax pilots and trials».
«(...)CBS Mobile Zone’ will provide free WiFi service through more than 20 city blocks extending from Times Square north to Central Park South and from Sixth Avenue west to Eighth Avenue. “Certain locations already are up, and the whole area is expected to be outfitted by month’s end, CBS said…“Users who access wireless in the CBS zone will first get to an advertising-supported homepage hosted by the network. The page will feature local and national news, wallpapers, ringtones, maps featuring local restaurants and entertainment options and social networking and search options» (fonte: «CBS to provide free WiFi in midtown Manhattan» RAIN 29/11/07
«Sprint Nextel and Clearwire called off a plan to join forces to build a nationwide high-speed wireless network using WiMax technology. The companies said they could not come to agreement on terms of the deal, announced in July.
fonte: «Sprint, Clearwire End WiMax Collaboration», Radioworld, 16/11/07
de um artigo de Skip Pizzi no Radio World:
«There is also a natural reluctance to jump into new services when they first launch — particularly if there is a cost involved (for hardware and/or service). The typical predilection — even among relatively open-minded early adopters — is to “give it some time” to stabilize, mature, work out the kinks, etc., by which time many such new offerings have already given up the ghost.
fonte: «Will Radio’s Inertia Be Its Savior?», Radio World, by Skip Pizzi, 11.07.2007
«Last week in Chicago, Sprint hosted a river boat tour for a group of technology journalists and industry insiders designed to show off its newest project: WiMax wireless technology. The product, dubbed "Xohm: WiMax from Sprint", showcased the potential of the new wireless technology, which uses high-power antennas to transmit wireless signals over much larger distances than a traditional Wi-Fi system. Guests were encouraged to use the variety of devices on board, from laptops to cell phones, over the wireless network set up by Sprint around Chicago's downtown area. (...) According to Ars Technica, the Xohm network is slated for a full launch in Chicago, Baltimore and Washington D.C. by March or April 2008. Sprint plans to follow the launch with a nationwide rollout, and should reach all major markets in the U.S. by the end of 2008»
«U.S. auto buyers, however, won't have to wait until next year to get wireless Internet access on-the-go. The Ford Sync system, developed in tandem with Microsoft, is landing in an increasing number of 2008 models, and as this video shows off, delivers a simple Internet radio solution to consumers via the Sync system.
fonte: «WiMax, new autotech reflect growing options for broadcasters». RAIN, 01/10/07
«Radio is dead, right? Not according to a little company called Phoenix. These guys brought their A game to the Digital Life convention today, showcasing a line of Wi-Fi radios and wireless speakers that look and sound good enough to compete with the big boys….almost. The Com one Wi-Fi radio sports an integrated W-LAN chip that automatically detects and connects to existing wireless access points. Once connected, it allows you to search for and listen to any number of currently available Internet radio stations. The on board LCD displays relevant track information, and there are 8 programmable favorites buttons that allow you to key in your 8 favorite stations. Very convenient. It’s a solidly built unit, and the built-in speakers sounded okay, but we wish they had either scrapped them entirely, or settled on a more sophisticated pair. Oh well. That said, there is a line out jack allowing you to connect and interface with external speakers of your choice. At the end of the day, this is a cool little unit, but Phoenix has a bit of work to do before they can step to the likes of Tivoli and others. Another shot after the break!»?
fonte: «Phoenix Com one Wi-Fi radio
«USA Today reports that several cities are shutting down their plans for municipal free or cheap city-wide Wi-Fi. The reasons are cost and complexity. In the long run, of course, there's no doubt that the Internet will be everywhere we need it - which is everywhere. Nor is there any doubt that it will reach into our cars sooner rather than later. Still, the threat posed by these municipal programs to the radio industry - namely: A world where folks can stream any online station anywhere in town instead of and in addition to your station - that threat has receded somewhat into the future, it seems. Will other solutions rush in to fill the gap? Eventually. Consumers will demand it.» fonte: RAMSEY, Mark, «Municipal Wi-Fi? Not just yet», Hear2.0, 20/09/07
«The rollout of platform-neutral wide area broadband wireless networks, such as Sprint Nextel's Wimax-based Xohm, will provide both challenges and opportunities for terrestrial radio, says a recent report from radio audio research firm Bridge Ratings. In a Sept. 12 report entitled The Impact of Wireless Internet, Bridge projects robust growth in wide-area wireless broadband connectivity, with nearly 100 million subscribers by the end of 2010. Coinciding with that gain is a projected Internet radio listener base of about 77 million. Based on the projection above, Bridge analysts predict both terrestrial and satellite radio Time Spent Listening (TSL) will slide as the decade draws to a close. For terrestrial broadcasters this represents a move from just less than 20 hours to 14.5 hours weekly. But satellite TSL is set to take a slightly more pronounced dip from its current level of about 21 hours weekly to a level equivalent that of terrestrial broadcasts. The good news in the report concerns terrestrial radio revenue. With internet-generated revenues already offsetting traditional spot dollar losses to support the current plateau for radio at about billion annually industry-wide, Bridge says that growth in online ad sales could actually serve to boost that figure to over billion in three years. Read the entire report at:www.bridgeratings.com» (fonte: «Bridge Ratings: Wireless broadband will be Two-Edged Sword for Radio», Digital radio Update,m 19/09/07
«From SiliconValley.com: "Notebook computers should begin reaching stores with the next generation of wireless technology — the long-range technology WiMax — by late 2008, Intel confirmed Friday. "The Santa Clara chip maker this week began shipping a chipset — or package of chips — that includes WiMax to computer makers for testing, said Sriram Viswanathan, a general manager. It anticipates the product, called Echo Peak, will be available commercially in late 2008... "It will be built into portable computers and mobile Internet devices, making access to WiMax networks easier. Intel has delayed the release of the product several times."»
fonte: «high-power wireless net to be built-in in laptops, mobiles in '08», RAIN, 06/08/07
Tudo por causa da explosão, que se adivinha, das redes 4G dos telemóveis, a tecnologia wi-Max: «Analysts are bullish on the prospects for Wi-Max. Boston-based Yankee Group is forecasting 28 million subscribers by 2011, while research firm In-Stat says Wi-Max infrastructure equipment and devices will become a billion market within four years, up from 7 million today. Wi-Max "will enable all sorts of new devices we've never even thought of," says Fred Wright, senior VP for networks and enterprise at Motorola. "Any applications that are cumbersome today because the cell phone can't provide a fast enough data rate, those will be the sweet spots Wi-Max will be able to address."
«A coalition of large technology companies wants to bring high-speed internet access to consumers in a new way: over television airwaves. The six that make up the coalition - Microsoft, Google, Dell, Hewlett-Packard, Intel and Philips - want the Federal Communications Commission to allow idle TV channels, known as white space, to be used to beam the internet into homes and offices, writes the Washington Post. But the FCC must first be convinced that such traffic would not leak outside designated channels and interfere with existing broadcasts. If a device submitted to government labs passes muster, versions could hit stores by early 2009. The new device would create competition among phone and cable companies that deliver high-speed Internet potentially driving prices down and would make it possible to deliver broadband to rural areas. Google joined the coalition because the effort could create opportunities to transmit information over new platforms. It also might strengthen Google's hand should the traditional internet pipelines - big phone and cable companies - start charging internet companies higher prices to move content more swiftly to consumers. »
fonte: «Tech Giants Pushing Use of Airwaves for Internet», MarketingVox, 14/03/07
«Mayor Antonio Villaraigosa outlined plans Tuesday to blanket Los Angeles with wireless Internet access in 2009, in what would be one of the nation's largest urban Wi-Fi networks.
fonte: LA Times.com, «L.A. mayor wants citywide wireless access», By James S. Granelli and Tony Barboza, Times Staff Writers
«Earthlink will be the company building out the network at a cost of as much as million. The Atlanta-based company will foot the bill, not the city. For its part, the city will provide right-of-way access for Earthlink's network infrastructure. • Earthlink will allow access to the network to other Internet service providers at a wholesale cost of a month. Those ISPs will then charge their own rates to users, using markups or other means to make money. How this happens is key to the plan's success -- more on that in a moment. • The network will cover the city's 600 square miles. In theory, you'll be able to connect anywhere within the Houston city limits. • Discount rates will be set for low-income residents, possibly as low as a month. The city is investigating how to best get them the often-costly hardware necessary for accessing the wireless network. • There will be free zones, in places such as parks and libraries. When the project is completed in about two years, Houston will have the largest citywide Wi-Fi network in the country. That is, unless until Los Angeles beats us to it.» fonte: «City Wi-Fi coming, but will it be worth what you'll pay?» Houston Chronicle, 15/02/07
«[São Francisco] vai distribuir gratuitamente acesso sem fios à internet em todo o seu território. Mais de 777 mil habitantes terão um acesso continuidado e gratuito, onde quer que estejam na cidade, em casa ou na rua. A iniciativa -inédita não só nos EUA mas em todo o mundo - é da câmara municipal, que estás prestes a fechar as negociações com a Earth Link, a empresa que fará a distribuição do acesso (...)» (MIguel Martins, EXpresso/Única, 13/01/07 pag 92)
«Ofcom, the UK's the broadcast regulator, has tagged WiMAX mobile wireless as a likely source of revenue for the public purse. It has announced "the UK's largest single release of radio spectrum, which could be used for a range of new services such as mobile broadband and advanced wireless services". (...) But it's no secret that WiMAX operators are expected to pounce. "Ofcom's research into the bands has identified a number of potential uses of the spectrum," the regulator announced. They include:
« Intel Corp. moved one step closer to developing its own mobile WiMAX solution on Wednesday when the company announced it had completed the design of its first WiMAX baseband chipset for use in laptops and other mobile devices. According to Intel's executive vice president and chief sales and marketing officers Sean Maloney, the new WiMAX Connection 2300 is a combination of the company's new chipset design and the previously announced single-chip, multi-band WiMAX/Wi-Fi radio. The chipset design was demoed on Wednesday during Maloney's keynote at the 3G World Congress and Mobility Marketplace in Hong Kong, where he showed a Centrino Duo mobile laptop with mobile WiMAX (IEEE 802.16e-2005), Wi-Fi (IEEE 802.11n), and high-speed downlink packet access (HSDPA) 3G capabilities successfully accessing the Internet at broadband speeds over a mobile WiMAX network. According to Dave Hofer, director of wireless marketing for the mobile platforms group at Intel, the announcement of Intel's WiMAX Connection 2300 will help further speed the deployment of mobile WiMAX, which is already moving along at a steady pace he said. "Our aim with WiMAX is to provide personal anytime/anywhere broadband connectivity," said Hofer. "This is a step along the way. We're at a point where, in 2007 and 2008, you're going to start seeing product samples."»
fonte: «Intel Develops Mobile WiMAX Chipset», PC Mag, 12/7/06
«Sprint Nextel will build the first nationwide mobile WiMax network, giving 100 million Americans wireless Internet access four times faster than current high-speed networks by the end of 2008, Sprint CEO Gary Forsee said at a press conference today. The "4G" (fourth-generation) network will launch by the end of 2007, Forsee said. Prices will be considerably less than current data charges, said Sprint CTO Barry West. (...) "Sprint is actively engaged with [consumer electronics] product leaders," according to Forsee. Motorola, Samsung and Intel will all help build Sprint's WiMax infrasutructure. Consumers should expect to see a whole range of different kinds of devices on the network, including "new, small types of PCs," said Intel executive vice president Sean Maloney, also present at the press conference. (...) Mobile WiMax, otherwise known as 802.11e, will boost real-world download speeds to 2-4 megabits/second, Forsee said. "Much of this 4G usage will be user-generated content," Forsee said. "Imagine accessing and building MySpace and YouTube literally on the fly." (... But the advantage of Mobile WiMax isn't just that individual download speeds will rise. It's that Sprint's virtual "pipes" will be able to support more simultaneous users at less cost, West said, and that WiMax chips cost "around 1/10" the price of those of competing technologies.»
fonte: PC Mag, «Sprint Nextel Goes To The WiMax», 8/8/06
«PORTLAND, Ore., Nov. 15 (AP) — Microsoft and MetroFi say they will work together to build a free wireless Internet service for Portland, Oregon’s largest city. MetroFi announced late Tuesday that it would introduce the Wi-Fi service in Pioneer Courthouse Square, a popular gathering place in downtown Portland, by the end of the year and expand it to the rest of the city within two years. Microsoft will provide locally focused content and advertising through its new search advertising system, adCenter. The system, intended to compete with Google, allows advertisers to single out users based on browsing habits and factors like their sex, age and location. MetroFi operates Wi-Fi networks in several Silicon Valley cities and has agreements with 13 cities across the United States to develop municipal networks. MetroFi, based in Mountain View, Calif., will pay to create and maintain the system. The company said the service would be maintained through advertising revenue. Users can receive advertising-free service for a month»
fonte: «Microsoft Will Join in Free Wi-Fi Effort», via NYT, By THE ASSOCIATED PRESS, Published: November 16, 2006
«Samsung Electronics Co. on Tuesday showed off a three-way gadget that's a phone, personal computer and music player tailored for an emerging wireless broadband technology. The Mobile Intelligent Terminal was unveiled at a Samsung-sponsored industry conference on Mobile WiMax, which is just coming into use and promises fast broadband connections over long distances. The device weighs about a pound and contains a fold-out keyboard, 5-inch screen and 30 gigabyte hard drive. It runs the full version of Microsoft Corp.'s Windows XP operating system and also supports the CDMA mobile phone communications standard, which is used in South Korea and other countries including the United States. Kim Hun-bae, Samsung vice president for mobile research and development, told reporters that the gadget is the world's first WiMax device that also works as a mobile phone. It also can access the Internet, make video phone calls and display television as well as other video. The Suwon, South Korea-based company said it plans to launch the device in South Korea during the first half of 2007. Samsung didn't mention any plans for marketing the device in the U.S. and other markets. It also didn't provide a price. WiMax has been strongly backed by Samsung, which is cooperating with U.S. companies Intel Corp., Sprint Nextel Corp. and Motorola Inc. to commercialize it in the United States. South Korea is the first country to commercialize WiMax, which promises fast wireless broadband connections and mobile roaming. Limited trials of Mobile WiMax are under way in South Korea, with plans to cover the capital, Seoul, by early next year. Sprint Nextel has said it aims to launch WiMax networks in some U.S. markets by late 2007, working with Samsung, Motorola and Intel. Samsung is confident WiMax technology will soon become a global standard, a top executive said Tuesday. "We have established a standard in (South) Korea, but it won't take long to spread throughout the world," Lee Ki-tae, president of Samsung's telecommunication network business, told reporters.»
fonte: Washington Post, «Samsung Unveils 3-Way WiMax Gadget», By KELLY OLSEN, The Associated Press
«WiFi, which is about as close to a wireless form of wired network as you can get. In its various flavors, WiFi is truly just a last-millimeter extension of an Ethernet network, allowing the same functionality as its wired brethren, but without the wire, over a short distance.
The most likely form of mobile broadband wireless Internet connectivity to follow the WiFi model is called WiMAX, while the wireless telco offerings are lumped under the generic heading of “3G.” But even WiMAX may take multiple forms, in that it may be offered in both licensed and unlicensed forms. In the licensed case, who will be the licensees? (Probably telcos.)
fonte: «What a Wireless World It Will Be», Rwoline, by Skip Pizzi, 10.25.2006
«Alcatel lançou solução para aceder aos serviços de IPTV [televisão por Internet] num PC portátil no automóvel a 100 km/hora através do WImax, tecnologia emergente de banda larga sem fios» (notícia do Expresso/Economia,14/10/06, a propósito das novidades no World Broadband Fórum que decorreu em Paris)
« Nokia expects to start selling cell phones using the new WiMAX Internet technology in 2008, the world's top handset maker said on Wednesday while unveiling network technology for WiMAX. For now, a computer can connect to a WiMAX fast wireless Internet connection only when it is stationary, but a new mobile version of WiMAX will be available this year, which is expected to be a breakthrough for the technology. Intel, Nokia, Samsung and Motorola all support the open-standard WiMAX as an alternative wireless broadband Internet connection alongside third generation mobile telephony networks, on which Internet access can get squeezed if networks fill up with voice callers. "WiMAX-capable Nokia mobile devices are expected to be available in 2008," Nokia said in a statement. Nokia said its WiMAX base stations will be commercially available for broadband operators in the 2.5 gigahertz band at the end of 2007 and for 3.5 gigahertz in the first quarter of 2008.» Fonte: Reuters, «Nokia expects to sell WiMAX cell phones in 2008» Wed Oct 11, 2006 10:17am ET
«A Canadian radio station has added a Web site aimed at cellphone and PDA users, timed to take advantage of a Wi-Fi rollout happening in its market. “Recognizing that a handheld world calls for a handheld point of view, the Edge reconfigured its consumer Web site to fit the dimensions of a handheld screen, optimizing users' view and capabilities,” CFNY(FM) station said in its announcement, adding that Toronto is “on its way to becoming the largest wireless hotspot in North America.” The station is owned by Corus Entertainment. The site is www.edge.ca/wifi. The site offers club and concert listings and text. It’s available through wireless hotspots on any handheld device that supports a Wi-Fi connection. A new Wi-Fi network in downtown Toronto is being implemented in five stages with completion by year’s end. For six months people with wireless-capable devices will have free access to the Web inside within that area. PD Alan Cross said radio “is the original wireless technology,” and that there is a “natural fit between what we do and the new technical realities the Internet presents.”»
fonte: «Station Jumps on Wi-Fi With Targeted Web Offering», RwOnline, 18/9/06
e é a primeira empresa de telemóveis a anunciar uma coisa destas...
«Sprint Nextel Corp. announced that it plans to develop and deploy its fourth generation nationwide broadband mobile network using WiMax. Backed by Intel, Sprint plans to launch its 4G network in test markets in late 2007, and then expand to the top 100 U.S. Markets in 2008. "None of us today can envision our lives without wireless connectivity or the Internet," said Gary Forsee, president and CEO of Sprint Nextel, in a statement. “...We will have a unique broadband capability for meeting the growing access and mobile Internet needs of businesses, governments and consumers when and where they want.” Sprint will pour billion in 2007 and between .5 billion and billion in 2008 into the new mobile broadband network. The company will be working together with Intel, Motorola, and Samsung to implement the 4G network. There has been no word on how much this will cost the consumer, but a WiMax infrastructure will be considerably less expensive to build than traditional networks.»fonte: «Sprint Plans to Roll Out WiMax Network», VOIPNews», Marin Perez on August 9th, 2006
«Internet radio will greatly benefit from pervasive Wi-Max or wide-area wireless access, which will bring Internet radio to portable devices, including car radios, by 2008»
fonte: «Bridge: HD Radio Will Impact Satellite Growth; Wi-Max in Cars by '08», RWonline, 24/8/06
É a opinião (excertos) de Corey Deitz (a merecer boa atenção):
«One of the scenarios I see coming together is the devaluation of AM and FM radio stations as technologies like WiMax take hold (...) WiMax will help to migrate Internet Radio from desktops to autos and other portable devices. WiMax radio signals (carrying broadband content at 70 megabits per second) should initially have a range of 30 miles. So, theoretically, an Internet radio station made available through a WiMax transmitting station centered in the middle of any American city will have the power to easily cover a 60-mile circumference, easily providing enough reach to rival most AM and FM stations being measured by Arbitron. (...) So, when the time comes when any enterprising programmer can create an Internet radio station which has the reach potential of terrestrial AM and FM properties, what does that do to their value? Well, I’m no financial genius but it seems to me it lowers their value – substantially. Before Internet radio, satellite, cell phones, and podcasts, AM and FM stations were considered non-renewable resources. In other words: the radio spectrum could hold only so many and no more could be created. (...) But, Internet radio stations can operate on low overhead which means they can also take more chances in specialized programming. They do not need as big an audience as a terrestrial station to be successful. An Internet radio station also doesn’t need 12 minutes of commercials each hour to be profitable, like many AM and FM operations. (...)And, although much weight has been put on HD Radio as part of the future saving grace of AM and FM, at least one question arises: will HD Radio infrastructure outpace WiMax infrastructure – and even if it does, will it matter?»fonte: http://radio.about.com/od/opinionpieces/a/aa082206a.htm (3 paginas)
«CHICAGO -- News Corp.'s zealous embrace of interactivity soon will reach way beyond the runaway success of the social networking Web site MySpace when its majority-owned DirecTV decides on a path and partners for creating a national WiMax network.
fonte: «News Corp., DirecTV take broadband to the Max», Hollywood ReporterJuly 18, 2006
News Corp., DirecTV take broadband to the Max
«America's smallest state is seeking to become its first to offer a wireless broadband network from border to border. Backers of Rhode Island's million project say it would improve services and make the state a testing ground for new business technologies. It also comes at a time when Rhode Island's capital of Providence is stepping up efforts to lure business from Boston, about a 50-minute drive away, in neighboring Massachusetts, where office rents are among the nation's most expensive. The Rhode Island Wireless Innovation Networks (RI-WINs) should be fully in place by 2007, providing wireless connectivity throughout the state, whose land mass of about 1,045 square miles is only slightly more than double the size of metropolitan Los Angeles. (...) The Rhode Island network is a hybrid of WiMax and Wi-Fi technologies that would deliver real-time connections at a minimum speed of 1 megabit per second (Mbps), allowing users to download a typical Hollywood-length film in about 100 minutes. The system will be supported by 120 base antennas placed throughout the state. © 2006 Reuters Limited. All rights reserved.»
fonte: «Rhode Island embarks on statewide wireless network» ZDNet News, April 28, 2006
Mark Ramsey questiona: «And that will precipitate the arrival of the Internet in cars, which is already on the drawing board in Detroit. And that will create a broad range of new opportunities for radio, all of them online. And it will create a serious new threat to radio, entirely online. Are you ready? Or are you still pitching HD?»
« "Intel Corp. is investing 0 million in Clearwire Corp., a company led by cellular pioneer Craig McCaw, as part of a 0 million investment that could help spur adoption of a wireless technology called WiMAX...
fonte: Wall street Journal, http://online.wsj.com/article/SB115214498454699023-email.html, via RAIN
«(...) News surfaced last week detailing a possible Sprint 4G WiMax network, and wireless ISP Clearwire recently received a 0 million cash infusion from Intel and Motorola to build out its own WiMax infrastructure. Clearwire is the second largest owner of WiMax-capable spectrum, behind only Sprint.
The latest developments come amid a flurry of activity from content providers and device manufacturers. Intel is already developing chipsets that will allow users to hook seamlessly into both WiFi and WiMax, and that will allow content applications to benefit from a new crop of "always connected" users. Already, some early-movers are emerging. Manhattan-based MusicGremlin has unveiled a WiFi-enabled MP3 player, and Microsoft is rumored to be developing a similar media player coupled with an iTunes-like service. What's more, the build-out of new wireless internet "pipes" may support Professor Christopher Yoo's "network diversity" theory, which holds that potential entrants in the ISP field are encouraged to invest in new broadband infrastructure so long as they can "differentiate" their services through content partnerships and services that appeal to consumers. Already, wireless carriers such as Sprint and Verizon have invested in networks to deploy their own mobile players and music stores—creating distinguishable and unique service offerings.»
fonte: Digital music News, «Big Players Continue to Push WiMax Infrastructure», 7/7/06
«"Under the agreement, Sacramento residents would pay monthly subscription fees of about to use MobilePro's wireless service, local businesses would pay to 0, and Sacramento's city agencies would be able to use the service free... "But earlier this month, the deal fell apart. The reason: Sacramento city officials had noticed new municipal wireless deals inked in San Francisco and Portland, Ore. The Portland rollout, sponsored by Silicon Valley startup MetroFi Inc., and the San Francisco deployment from Google Inc. and Earthlink Inc., both offered wireless service to those cities with expanded free access for some businesses and residents. Instead of relying on user subscription fees, MetroFi, Google and Earthlink planned to make money off local advertising that would be embedded in their wireless service.
"Sacramento... wanted to pursue an even more aggressive model: a completely free wireless service supported solely by Internet advertising... Sacramento city officials say they make no apologies in asking for a free wireless network supported only by advertising...»
fonte: Wall Street Journal on line (com subscrição), via RAIN
«A Anacom autorizou a PT a prolongar os testes técnicos que tem vindo a realizar à tecnologia WiMAX até ao proximo mês de Outubro. Não obstante, a PT não é a única a testar esta tecnologia, uma vez que desde 2003 que a Intel e a Alcatel, em parceria, também o têm vindo a fazer, com o objectivo de acelerar a chegada desta tecnologia ao mercado nacional, tendo a Bradnet, também este ano, entrado na corrida para a realização de testes.
Num comunicado, a Anacom referiu que a realização destes testes não implica qualquer compromisso, obrigação ou condicionante à utilização futura de sistemas do tipo WiMAX em Portugal, nem implica qualquer vínculo do regulador à atribuição de direitos de utilização num eventual processo futuro de autorização desta tecnologia. Por outras palavras, os testes que têm vindo a ser realizados não influenciam qualquer decisão da Anacom relativamente à futura atribuição de licenças para operar a tecnologia. (...) Em relação a esta tecnologia, de referir que é um upgrade do Wi-Fi, que tem uma maior largura vde banda e cobertura, podendo oferecer até 124 Mbps e cobrir um raio de 50 a 70 KM - mais que os 54 Mbps num raio máximo de 120 metros oferecidos pelo Wi-Fi. Por outro lado, esta está a ser desenvolvida como alternativa ao DSL na última milha de ligação da infra-estrutura de comunicações, e numa componente móvel como alternativa para fornecer serviços de Internet em zonas onde as infra-estruturas físicas não estão disponíveis»
fonte: Connect, 05/2006 («PT irá fazer ensaios técnicos ao WIMAX até Outubro»)
«A Câmara Municipal de Lisboa (CML) acaba de abrir um concurso que visa disponibilizar o acesso à Internet sem fios a todos os habitantes desta cidade que pode assim tornar-se na primeira capital da Europa a disponibilizar esse serviço, revela a edição de hoje do jornal Diário Económico. Uma das empresas que já apresentou uma proposta ao município foi a ARTelecom, de João Pereira Coutinho. No entanto, a Câmara está ainda a analisar todas as propostas que entretanto chegarem pelo que ainda não existem prazos definidos para a instalação ou operacionalidade do serviço. Apesar do projecto ‘wireless’ de Carmona Rodrigues pretender ligar toda a cidade podem surgir algumas dificuldades técnicas relacionadas com as zonas mais elevadas das colinas pelo que a prioridade será cobrir primeiro as zonas históricas e outras que necessitem de reabilitação e de atrair novos habitantes, revelou fonte oficial da CML.
Mas ao contrário do que acontece com a cobertura wi-fi de outras cidades cuja autarquia suporta os custos do serviço, o acesso wi-fi promovido pela Câmara Municipal de Lisboa não deverá ser gratuito embora ainda não haja preço definido.»
fonte: «CML vai criar rede wireless para Lisboa» Exame Informática, 16/3/06, in http://exameinformatica.clix.pt/noticias/internet/213009.html
«Canadian WiMAX network launched (fonte:ARS Technica, 4/2/2006 4:23:04 PM, by Eric Bangeman)
Broadband choice has become more of a reality for some Canadians, as Inukshuk Wireless, a joint venture between Bell Canada and Rogers Communications has opened for business. According to Bell Canada, the first phase of the network covers over 5 million households and is available in selected areas from coast to coast.
Inukshuk is using pre-final-certification WiMAX technology to operate the network, making it the first large-scale WiMAX deployment in North America. Bell and Rogers used their preexisting infrastructure such as cellular towers to install the network, which operates in spectrum licensed to the companies already. Those spectrum licensing requirements stipulate that the service be made available in at least 25 unserved rural markets in the next year and 50 by March 2008. (...) WiMAX has been touted for many years now as both an alternative to cable and DSL, and as a solution to extend the reach of broadband to areas where it is not currently available. Earlier this year, the WiMAX Forum certified the first official WiMAX hardware, which operates in the 3.5GHz range. Unfortunately for US residents looking for options when it comes to broadband, that spectrum is already in use. That means for the time being, any WiMAX implementations in the US will either have to use proprietary hardware and run the risk of not being to interoperate with other networks, or wait until gear that operates in open spectrum (e.g., 5.8GHz) is certified (hopefully within the next twelve months). Until that time, we'll have to be content with seeing how our neighbors to the north do with their first WiMAX deployments»
«The City of London is set to have a Wi-Fi network in place covering the entire city. It should be in place within the next few months. A private company called The Cloud will install the hardware and equipment, and will make use of street furniture like the lamp posts and street signs for the purpose.
People within range of the city-wide coverage will be able to surf the ‘net wirelessly and do things like listen to live streaming radio on wireless devices like wireless Palm PCs or WiFi radios like this one.» (fonte http://todmaffin.com/blogs/radio/?p=998)
«The report points out that a typical base-station, can handle an area between 3-to-10 kilometers in a non-line of sight environment. Or about 40 Mbit/s per channel, which basically boils down to this: one cell could theoretically allow hundreds of business connections at 1.5 Mbit/s and thousands of residential connections at 256 kbit/s. It is easier to see why I have always believed that this is a long haul technology, which can then work in tandem with WiFi meshes, for local connectivity»
«A set of emerging wireless technologies is posed to greatly increase the range of high-speed wireless broadband. The technologies behind WiMAX should allow for wireless data speeds of up to 40 Mbit/s over a distance of 10 kilometres using relatively inexpensive equipment. These same technologies could also offer faster data transfers to mobile devices than is possible over current third-generation mobile networks under certain conditions. WiMAX-certified equipment should become available in late 2005 and should significantly increase the speed and reach of wireless data networks.»
...o rádio do carro será um computador, as estações présintonizadas os favoritos e deixa de haver limites hertzianos à escuta: posso ouvir a Rádio Macau em Vila do Conde!
Vem isto a propósito da decisão da cidade de São Francisco de se tornar cem por cento wi-fi!
Tenho para mim que a Internet poderá ter para a rádio do século XXI o mesmo efeito que teve o transístor para a do século passado (ou ainda maior, mas nesta altura isso é ficção).
A Internet vai alterar a diversos níveis a rádio como a conhecemos, mas há, nesta altura, alguns constrangimentos técnicos que impedem um desenvolvimento maior: o principal é que a Internet ainda não é portátil. As redes de wi-fi mostram por um lado a necessidade de introduzir mobilidade à Internet, libertando-a dos fios e, por outro, como é dramática qualquer tentativa de fazer deslocar um computador ligado mais do que 20 ou 30 metros (os hotspots de wi-fi funcionam relativamente em edifícios, mas na rua…).
Ora a rádio é mobilidade, é portabilidade, é o carro. Quando a rádio on line for uma alternativa válida de escuta, em grandes ou pequenas viagens, a rádio viverá momentos de grande felicidade.
Por isso é que há quem saúde a tecnologia WiMAX como sendo o princípio do futuro: as suas estações emissoras suportarão 50 quilómetros e isso já é um princípio para se criarem redes ao nível de cidades. Essa realidade está distante? Provavelmente. Mas, também aqui, o futuro já começou!
Outros textos deste blogue sobre o WiMAX:
- "introduz um novo desafio para a rádio, que passa pela produção de conteúdos cada vez mais dirigidos e apelativos para a sua audiência, dada a variedade de opções e a facilidade de saltar entre conteúdos"
Lembram-se do WiMax?
Acabei de ler no Future of Radio que "Nokia and Inatel Collaborate on WiMAX Broadband Wireless Technology".
"Nokia and Intel Corporation today announced a cooperation to accelerate the development, adoption and deployment of WiMAX technology, helping to bring new capabilities and data services to mobile users over high-speed broadband networks.
The companies will collaborate on several areas in support of mobile WiMAX technology (IEEE 802.16e) including mobile clients, network infrastructure, industry-enabling efforts and market development. For mobile devices and notebook platforms, Intel and Nokia will work closely to identify and deliver the unique power and performance requirements of the technology, and will work on base station strategies to help deploy a WiMAX network infrastructure that will provide adequate and reliable coverage."
A propósito deste texto, e atendendo à importância que parece - a esta distância - ter, deixo ficar estas reflexões:
Um dos grandes objectivos da Internet, mal se consolidou como fenómeno, foi libertar-se do fio telefónico que a mantinha agarrada à rede – porque isso representaria a independência total e a chegada da Internet, verdadeiramente, a todo o lado.
A criação de locais de acesso sem fios (“wireless hotspots”) foi um avanço, sobretudo em universidades e empresas de troca intensiva de informação. Mas esta tecnologia não descolou – essencialmente porque, apesar da “independência” conseguida, a tecnologia em questão não permite a interligação entre dois locais “wireless” (ou seja, apesar de não precisar de cabo, a mobilidade não é grande e implica – basicamente – alguma estabilidade).
Tirar a Internet de casa, da mesa, dos edifícios continua a ser um objectivo – há anos que se sabe estarem os fabricantes de auto-rádios a preparar modelos multimédia, à espera que a tecnologia os suporte.
Seria o UMTS a solução? Há desde logo um problema de custos. Depois, o tráfego não é – ainda? – suficientemente rápido e ágil. O que, por junto, faz com que os construtores automóveis continuem à espera da democratização de uma qualquer tecnologia que permita ouvir, em movimento, conteúdos “on line” (por exemplo, rádio).
Eis, contudo, uma tecnologia que parece poder resolver os problemas suscitados – “Wimax”.
De acordo com o (pouco) que se sabe, pode transmitir áudio e vídeo (“uma pequena parte do que está para vir”, lê-se) e terá testes a sério no próximo ano.
"Com o aparecimento de novas tecnologias sem fios e outras que certamente se seguirão, a indústria da rádio, apesar de aparentar maturidade, pode estar na verdade na sua infância. De uma forma ou de outra, tudo indica que a rádio pode estar a entrar no início de uma nova era”.
By Rick Dearborn (Radio Ink, 5/9/05)
The arrival of a new technology could have a broad impact on the radio industry. There is every indication that it will influence the way radio delivers programming and the way it tracks audiences. Surprisingly, there has been little if any discussion about it within the industry, as it is a broadcast technology that broadcasters did not develop.
(via NetFM. Paula Cordeiro escreveu isto: "Um artigo escrito no RadioInk, por Rick Dearborn (consultor para os media e professor) apresenta um novo sistema de comunicação sem fios e um novo desafio para a rádio. fala-nos do Wimax, um novo sistema de ligação em rede sem fios. Um desenvolvimento do sistema wi fi que já conhecemos, bastante mais poderoso e fiável. Acrescenta que, com ele, surge também um novo sistema de difusão, produzido fora da indústria de radiodifusão. O sistema de produção de conteúdos para a rádio vai manter-se e aumentar criando uma nova era para a rádio. A facilidade de conexão dos ouvintes e a forma como essa conectividade vai alterar o esquema tradicional de recepção da comunicação radiofónica trará grandes alterações, especialmente porque independentemente do receptor que estejam a usar (PDA, Telefone, ou qualquer outra invenção) vão poder ouvir rádio (ou mesmo outros media). Este aspecto introduz um novo desafio para a rádio, que passa pela produção de conteúdos cada vez mais dirigidos e apelativos para a sua audiência, dada a variedade de opções e a facilidade de saltar entre conteúdos"
Transistor kills the radio star?
Um blogue de suporte a uma investigação sobre a rádio do futuro - ou o que quer que ela se venha a chamar...
Textos de referência