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domingo, 3 de julho de 2011
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OnLive CEO reveals 'entirely new approach' to wireless, credits Rearden for toppling Shannon's Law -- Engadget
quarta-feira, 29 de junho de 2011
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IEEE approves next generation WiMAX standard, invites you to meet 802.16m
sexta-feira, 1 de abril de 2011
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It's a term (and a technology) that has been bandied about for around four years now, but after waiting far too long for the next next best thing, the Institute of Electrical and Electronics Engineers has just given its oh-so-coveted stamp of approval to 802.16m. For those unfamiliar with such a term, that's the standard for next generation WiMAX, which may end up being capable of handling downstream rates of over 300Mbps. 'Course, those that were around during CEATEC last year know that Samsung already hit that in testing, but we're starting to feel as if that 1Gbps theoretical maximum that we were teased with in 2007 (and again last year) won't ever breach reality. It's tough to say what this approval means on the consumer front -- over the past four years, a tremendous amount of carriers have switched their allegiance to LTE, and even if WiMAX 2.0 finds itself ready for public consumption in the near future, it'll take a serious operator commitment before you'll ever enjoy the spoils. So Sprint, you feeling froggy?
Fonte:http://www.engadget.com/ By Darren Murph
posted Apr 1st 2011 11:46AM
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Fonte:http://www.engadget.com/ By Darren Murph
posted Apr 1st 2011 11:46AMHuawei Completes a Circuit Switched Fallback Voice Call for LTE Networks
quinta-feira, 13 de janeiro de 2011
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China tenta exportar tecnologia 4G para África e América Latina
segunda-feira, 3 de janeiro de 2011
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China acredita que sua tecnologia de quarta geração (4G) se transformará em sucesso no mundo todo, especialmente em mercados em desenvolvimento como África e América Latina, segundo especialistas do setor citados no domingo (2) pelo jornal oficial "China Daily".
Esse tipo de tecnologia está sendo desenvolvido na China pela companhia estatal China Mobile, a maior do mundo em número de usuários, e pode conseguir uma velocidade de transmissão de dados de até 150 Mbytes por segundo.
De acordo com um engenheiro responsável da Academia Chinesa de Pesquisa em Telecomunicações, Chen Jinqiao, muitas operadoras de outros países entraram em contato com a China Mobile para manifestar seu desejo de adotar esta tecnologia.
Em sua maioria são operadoras africanas e latino-americanas, de países "que têm uma boa relação econômica e política com a China" e mercados que querem saltar diretamente da segunda para a quarta geração, destacou o especialista.
Um dos primeiros países que contará com a tecnologia será a Polônia, que anunciou o início da construção desta infraestrutura para o início deste ano.
Segundo Chen, em países desenvolvidos, no entanto, a implantação deste padrão de telecomunicações é mais difícil, "devido à dura concorrência de outras tecnologias 4G".
A China Mobile desenvolveu tecnologias 3G, mas estas não foram exportadas, já que outros sistemas, como o japonês WCDMA, mostraram qualidade superior.
Operadoras de telefonia chinesas (como a Huawei e a ZTE) e estrangeiras (como a Alcatel e a Ericsson) participam de testes da 4G chinesa, que por enquanto começou a ser utilizada de forma experimental em seis cidades da China.
FONTE: folha.com
NSN to break with Huawei in TD-LTE
segunda-feira, 26 de julho de 2010
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As Huawei's challenge to its western rivals mounts, the Chinese firm is finding itself increasingly in the firing line. Not only is it facing significant hurdles to major contracts from US and Indian authorities, but last week Motorola filed a lawsuit accusing it of stealing confidential information. And now, reports have surfaced that Nokia Siemens plans to break a joint development deal with Huawei for TD-LTE and go it alone.
Huawei has denied any involvement in a plan that lies at the heart of the legal challenge, which alleges that the Chinese vendor helped a group of former Motorola staff to steal information, and use it to set up their own company in competition with MOT. Last week, a modified lawsuit claimed that former employee Shao Wei Pan secretly reported to Ren Zhengfei, Huawei's founder and chairman, while he was working at the US firm.
According to the lawsuit, the former employees were working on a micro base station project and passed technical details to Huawei, then setting up their own company, Lemoko. "The complaint is groundless and utterly without merit. Huawei has no relationship with Lemoko, other than a reseller agreement," a spokesman told official news agency, China. "Huawei will vigorously defend itself against baseless allegations."
Huawei went on, with a veiled threat of countersuit. "As an active and significant player in global standards setting bodies, Huawei has great respect for the right of intellectual property holders, and will with equal vigor protect its own hard earned intellectual property rights," the company said. Some analysts speculated that the timing of the lawsuit was a tactic to try to put customers off switching allegiance to Huawei, especially in the US, amid the uncertainty of the sale of Motorola's wireless equipment business to Nokia Siemens.
NSN is also distancing itself from Huawei, according to its Greater China Region president, Zhang Zhiqiang. He said in a recent interview that the company would develop its own TD-LTE technology in future, which would end a long established joint venture with Huwaei, TD Tech, set up in 2005. TD-LTE is the standard largely created for China Mobile but also gaining acceptance for TDD spectrum elsewhere. Unlike NSN, Motorola has a headstart in this technology, thanks to its experience in another TDD standard, WiMAX, and runs China Mobile's showcase network at Shanghai Expo, along with Alcatel-Lucent. It is unclear what will happen to another alliance, that between Huawei and Motorola for W-CDMA, created when the US firm existed the W-CDMA business in its own right.
Telecom Managed Services Are Transforming Carrier Business Models
quarta-feira, 12 de maio de 2010
comentários: 2
Network operators are turning to managed services and outsourcing not only to reduce their operating costs but also to transform business models to compete more effectively, a trend that will continue growing, according to a new report from Pyramid Research.
The telecom managed services sector is entering its third phase of development, characterized by a greater focus by operators on how to adapt to the changing dynamics of the industry and position themselves better for future opportunities, notes Elizabeth Bramson-Boudreau, Analyst at Large and author of the report. "Drivers of third-phase outsourcing include network sharing and the emergence of over-the-top (OTT) applications, such as social networking, that can, if allowed, bypass operators almost entirely," says Bramson-Boudreau.
Widespread adoption of telecom managed services will change the telecom landscape significantly in the coming decade, Bramson-Boudreau notes. As more carriers offload bigger portions of their network operations to trusted partners, telco business models will shift away from simple service provisioning, she explains. "The operator of the past - with full control over all network functions, monopolist-style attitudes toward customer service, and slow delivery of new services - is unlikely to exist in the future," she adds.
