José Ribamar Smolka Ramos
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Março 2009 Índice Geral
10/03/09
• Mensagem de José Smolka: Vídeo sobre 4G
----- Original Message -----
From: José de Ribamar Smolka Ramos
To: wirelessbr@yahoogrupos.com.br
Sent: Tuesday, March 10, 2009 11:41 AM
Subject: [wireless.br] Re: Vídeo sobre 4G
--- Em wirelessbr@yahoogrupos.com.br, "Roberto Santis" <roberto@...> escreveu
> http://olhardigital.uol.com.br/central_de_videos/video_wide.php?id_conteudo=7584
> Tendenciosa a posição tomada pela ericsson....
Roberto,
A posição contrária da Ericsson em relação ao WiMAX é antiga. Veja, por exemplo,
este artigo do Light Reading, de março de 2007 (2 anos atrás!) e que diz que ela
já teria parado de investir no desenvolvimento de uma linha própria de produtos
WiMAX desde o final de 2006. A leitura do artigo
Ericsson Pulls
WiMax Plug (ver abaixo) é interessante por mais que este motivo. Dá para
entender porque, assim meio que de repente, o 3GPP saiu do seu passo letárgico
habitual e começou a trabalhar a jato na formalização das especificações do LTE.
Agora... Neste vídeo em particular, a conclusão que vc chegou foi por
inferência. O locutor diz que as primeiras redes LTE estão sendo instaladas na
Europa este ano (ainda em trial, embora isto não seja mencionado). Fala também
que a Ericsson é uma das principais fornecedoras. Conclusão: a Ericsson está
fornecendo redes LTE.
O locutor diz também que existe uma "guerra" (mais uma...) entre as tecnologias
LTE (3GPP) e WiMAX móvel (IEEE) pelo mercado de comunicações de voz e dados
móveis em banda larga - a assim chamada 4G. Aqui entra a inferência: se a
Ericsson está fornecendo LTE, então é porque ela já tem um commitment com este
lado da disputa, e é necessariamente contrária ao WiMAX. Casualmente é verdade,
mas o raciocínio foi um pouco "puxado".
[ ]'s
J. R. Smolka
-------------------------------------
Fonte: Light Reading
[22/03/07]
Ericsson Pulls WiMax Plug
Michelle Donegan, European Editor, Light Reading, and Dan Jones, Site Editor,
Unstrung
Networking giant Ericsson AB (Nasdaq: ERIC) is pulling the plug on its
development of WiMax to concentrate on upgrading the 3G cellular technology it
favors for broadband speeds.
The company confirmed on Thursday afternoon that it stopped internal WiMax
development efforts at the end of last year and is instead relying on a reseller
strategy for the technology. "Right now, we don't work on a WiMax system," says
Mikael Persson, manager of strategy and business development for WCDMA at
Ericsson. "We've invested in the basic research, but we don't see the point in
taking that final investment to prepare factories... because we don't see the
volumes in the market."
He says Ericsson will continue to resell Airspan WiMax equipment.
"We want to focus our resources where we'll get the most bang for our buck. And
right now, there's no bang at all putting it into WiMax," says Persson.
"HSPA is where the market is happening right now. I'm really puzzled by this. I
don't understand how this market [WiMax] will survive."
Ericsson's worst nightmare is that big operators will decide to go for mobile
WiMax instead of waiting for long-term evolution (LTE) to develop, which is the
next technology upgrade. In fact, Vodafone Group plc (NYSE: VOD) CEO Arun Sarin
issued a barely disguised threat to this effect at the 3GSM conference in
Barcelona in February. Sarin expressed frustration at the slow pace of mobile
technology development, saying that if LTE progressed more quickly, there would
be no need to deploy WiMax. (See 3GSM: Mobile's Fear Factor.)
"We have to speed up LTE development," admits the Ericsson man.
By relieving itself of any WiMax research and development, Ericsson will now
focus on LTE for 4G. The vendor claimed to have the world's first LTE
demonstration at the 3GSM show. (See Ericsson Demos at 3GSM.)
Ericsson was skeptical of WiMax from the start and concerned that it might
cannibalize its core WCDMA business. It was the last major vendor to join the
WiMAX Forum , in December 2004. It is still listed as a principal member on the
Forum's Website.
At that time, Ericsson positioned WiMax as a complement to DSL for wireline
operators and was determined to keep the new wireless technology at arm's length
from its core WCDMA mobile business. The vendor told Unstrung then that it did
not see WiMax as a mobility solution. (See Ericsson Cool on WiMax, Ericsson
Hovers on WiMax, and Ericsson Joins WiMax Forum.)
As of June last year, Ericsson was still not committing to mobile WiMax, unlike
many of its peers, including Nokia Corp. (NYSE: NOK), Nortel Networks Ltd. (NYSE/Toronto:
NT), Motorola Inc. (NYSE: MOT), and Samsung Corp. . The vendor said its WiMax
development would focus on "fixed-nomadic-portable" applications based on OFDMA
in the 3.5GHz frequency band.
— Michelle Donegan, European Editor, Light Reading, and Dan Jones, Site Editor,
Unstrung