h**********9
发帖数: 3252 | 3 有没有大牛能鉴别一下这 White Space Phone 靠不靠谱？
http://www.dailywireless.org/2011/04/01/nokia-microsoft-white-s
http://www.microsoft.com/presspass/emea/presscentre/pressreleas
When Nokia announced that it will drop Symbian for Microsoft’s Windows
Mobile, many in the industry were taken by surprise. Now, according to
industry insiders, the strategy is becoming clear: Nokia will use Microsoft
’s patented “white spaces” radio, enabling wireless devices to use
television frequencies.
The two firms have apparently been working on a software defined radio
platform for several years. Now the companies are preparing a world-wide
rollout of a system that may short circuit the world’s largest carriers.
Microsoft and Nokia are expected to utilize small, WiFi-like access points,
expected to cost $250-$500 dollars, rather than cell towers that can cost $
250,000. Local access points, using unused television frequencies, penetrate
indoors better and can have a range similar to PCS cellular radios –
approximately 1-3 miles.
Multiple 6 MHz wide channels will be automatically ganged together in this
new system, delivering an effective 2-12 Mbps for end users. Using TD-based
LTE or WiMAX radios, with a software defined front end, the Nokia/Microsoft
access points connect to the internet directly — like WiFi access points.
The phones use VoIP software, similar to Skype, jointly developed by Nokia
and Microsoft.
According to some industry observers, the impact of white space phones on
today’s two trillion dollar telecommunications industry may be significant.
White space phones will not need today’s infrastructure and licensed
spectrum. They will not be dependent on phone companies.
The initial thrust for the whitespace phone system is expected to be in the
developing world, with cable operators and retail stores like Best Buy the
main focus in the United States. The joint venture is expected to announce
several test markets, including the Seattle area this summer and will test a
Visa-enabled SIM card, enabling contactless payments.
Handsets are expected to be available by the 2012 Olympics in London, where
a strong marketing push is planned. The two firms say their strategic
alliance utilizes standards developed by the Wireless Innovation Forum. A
Microsoft employee familiar with the project who declined to be identified,
says the goal of the joint venture is to bring the cost of broadband
telephony to near zero. Revenues would be generated from advertising, micro
payments, and applications such as 3D games. |
