José Ribamar Smolka Ramos
Março 2010 Índice Geral
José Smolka indica dois artigos: "Sprint and
Verizon head-to-head in '4G' " e "Clearwire's Mexican alliance in doubt after
Olá, ComUnidade WirelessBRASIL!
Agradeço ao nosso José Smolka o pronto atendimento à Chamada Geral para o evento virtual comunitário "Março com 4G".
Esta é exatamente uma das idéias: indicação de textos, com um pequeno (mas pode ser grande!) comentário para motivar a leitura. :-)
Um abraço cordial
de J. R. Smolka <email@example.com>
para wirelessbr <firstname.lastname@example.org>, Celld-group <Celldemail@example.com>
data 1 de março de 2010 10:57
assunto [Celld-group] Colaborando com o "março com 4G"
Atendendo ao "chamamento" do Hélio, vou repercutir para vcs dois artigos que saíram hoje no site Rethink Wireless.
O primeiro evidencia a disputa de mercado entre os dois "campeões" das tecnologias 4G (WiMAX e LTE) na disputa pelo mercado e mindshare dos EUA.
O segundo trata de como algumas "jogadas" podem estar sendo feitas em outros mercados para dificultar a vida do WiMAX, que tem uma clara vantagem, em termos de time to market, em relação ao LTE.
J. R. Smolka
Fonte: Rethink Wireless
[01/03/10] Sprint and Verizon head-to-head in '4G' - by Caroline Gabriel
The '4G' race is well and truly underway in the US, with Sprint and Verizon Wireless both talking up their expansion plans for 2010 and beyond - the former riding on the WiMAX network of its Clearwire joint venture, the latter kicking off its LTE roll-out.
Sprint sees its Sprint 4G WiMAX/CDMA service as increasingly strategic for growth in margins and high value customer acquisition, at a time when both metrics are faltering in its 3G business. This year, it will add services in the cities of Boston, Denver, Kansas City, Houston, Minneapolis, New York, San Francisco and Washington DC, plus some smaller markets. This will add to the 27 cities where the offering is already available. It is not only targeting consumers, but the growing machine-to-machine segment. Matt Carter, president of 4G at Sprint, said that, in particular, transportation, healthcare and public safety would be strong markets for WiMAX embedded services.
Meanwhile, Verizon Wireless will double the number of its LTE markets to between 50 and 60, by the end of 2011. This was the latest update from CTO Tony Melone, who said Verizon would achieve this figure 15 months after initial commercial launch, which is now expected in the second half of 2010. The carrier plans to cover 25 to 30 markets before the end of this year and then add LTE to its whole 3G footprint - about 94% of its sites - by the end of 2013.
In an interview with Network World, Melone said Verizon would also bring LTE into play to fill gaps in the 3G coverage, especially in rural areas, using the propagation qualities of its 700MHz spectrum.
The operator expects to offer average data rates of 5-12Mbps download and 2-5Mbps upload. It is currently evaluating devices, including about eight dongles. Melone said int he interview: "We continue to conduct validation testing in conjunction with initial commercial deployments. We expect that technology testing and assessments will continue as the LTE technology and standards are advanced."
Verizon and AT&T continue to slug it out in the advertising campaigns for their 3G services, but Sprint hopes to steal a march on both with its new slogan, 'What can you do with 4G?'. This revolves around promises that the WiMAX system can deliver 10 times better speeds than 3G, and will run over television, print and web ads. It features Sprint's Overdrive 3G/WiMAX personal hotspot, which allows a mobile broadband connection, and subscription, to be shared among several Wi-Fi devices.
Fonte: Rethink Wireless
[01/03/10] Clearwire's Mexican alliance in doubt after regulator decision - by Caroline Gabriel
Clearwire is busily cultivating strategic relationships round the world, to improve its scale, roaming and device knowhow. Deals in China and India are mooted, and it has spectrum and/or partnerships in various markets in Europe and the Americas. However, the regulator may have ruined an apparently promising alliance in Mexico.
The country's regulator, Cofetel, has decided not to renew the 2.5GHz spectrum license held by MVS Comunicaciones. This was initially awarded for MMDS broadcasting services but MVS has been using its band for broadband wireless too, and planned a major WiMAX roll-out in partnership with Clearwire. This would also create a roaming bloc in 2.5GHz that would extend across the US, Canada (via the Inukshuk partnership) and Mexico.
But Cofetel claims that MVS has failed to use its spectrum allocation sufficiently to justify keeping its license - poor timing, as this was one challenge Clearwire's support was designed to address. After various preliminary rulings and appeals, this appears to be a final judgement. Cofetel also departed from the stance of technology neutrality that is becoming more common among regulators worldwide, and suggested the 2.5GHz band might be better used for LTE.
MVS had previously argued that the state's indecision over whether to renew its licenses had held up investments in deploying new services. Three months ago it announced a $700m deal with Clearwire, which has been quietly cultivating relationships around Latin America over the years, often cooperating with smaller 2.5GHz players such as WebSky. The funding was to support an ambitious plan to launch WiMAX services in 23 cities, a program also backed by Intel. The hope was to kickstart WiMAX growth in Mexico, where there is pent-up demand for mobile broadband because of repeated delays in 3G auctions, now set for later this year.
The regulator plans to run new 2.5GHz auctions in tandem with those in 1.9GHz and 1.7GHz-2.1GHz for 3G. This is an increasingly common tactic in emerging nations where 3G does not yet exist, offering the potential for operators to create flexible 3G/4G roll-out plans that could provide better return on investment, and better targeted capacity, than a single-technology plan. Although 2.5GHz (MMDS) and 2.3GHz frequencies have been in use in Mexico for years, many licenses were originally allocated for broadcasters, and need to be reviewed as part of the new spectrum auction process. Mexico also allocated 3.5GHz broadband wireless licenses in 2003.
MVS is a provider of television, radio, publishing and broadband services and is the majority partner in Dish Mexico, a satellite TV joint venture with US-based EchoStar. Its existing 2.5GHz networks in Mexico City, Guadalajara, Monterrey, Toluca and Mexicali offer business, consumer and VoIP services, some direct but many via MVNOs and leasing partners such as AT&T venture Alestra and ISP Ego. It also has roaming agreements with other WiMAX /NextNet users like Clearwire and Canada's Inukshuk.
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