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iBoaterer[_2_]

In article ,
says...

On Sunday, September 23, 2012 10:35:38 AM UTC-4, iBoaterer wrote:
In article ,

says...

On Sunday, September 23, 2012 7:51:44 AM UTC-4, iBoaterer wrote:

SHOW ME then asshat. SHOW ME a technical article that states that 4G

uses different antenna than 3G. Antenna are different lengths because of

the wave length of radio signals. In this case, that means nothing.

In this case, that means everything, idiot.

From http://en.wikipedia.org/wiki/Cellular_frequencies

Look halfway down the page at the tacle titled :Carrier Frequency Use" and you'll see the data below.

USA Carrier 3G 4G

AT&T 850 / 1,900 Band 17 (700MHz)/AWS (1,700/2,100 MHz)

Verizon 850 / 1,900 700 / AWS(Planned)

3G and 4G do indeed use different frequencies. And that, as you stated, requires different antennas.

Nope. Same antenna. Prove me wrong.

From your own link:

"Advanced antenna systems

Main articles: MIMO and MU-MIMO

The performance of radio communications depends on an antenna system, termed smart or intelligent antenna. Recently, multiple antenna technologies are emerging to achieve the goal of 4G systems such as high rate, high reliability, and long range communications. In the early 1990s, to cater for the growing data rate needs of data communication, many transmission schemes were proposed. One technology, spatial multiplexing, gained importance for its bandwidth conservation
and power efficiency. Spatial multiplexing involves deploying multiple antennas at the transmitter and at the receiver. Independent streams can then be transmitted simultaneously from all the antennas. This technology, called MIMO (as a branch of intelligent antenna), multiplies the base data rate by (the smaller of) the number of transmit antennas or the number of receive antennas. Apart from this, the reliability in transmitting high speed data in the fading channel can
be improved by using more antennas at the transmitter or at the receiver. This is called transmit or receive diversity. Both transmit/receive diversity and transmit spatial multiplexing are categorized into the space-time coding techniques, which does not necessarily require the channel knowledge at the transmitter. The other category is closed-loop multiple antenna technologies, which require channel knowledge at the transmitter."

I know this stuff is over your head, but they basically designed new, advanced antenna technology to enable the transmission of 4G signals.

"Recently, multiple antenna technologies are emerging to achieve the goal of 4G systems such as high rate, high reliability, and long range communications."

Yeah, they use the same antennas that have been in place for years. ~snerk~

If you need a different antenna for any given frequency, you'd have to
change antenna every time you changed the radio station in your car.

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