Cell-phone Network Technologies: 3G
3G technology is the latest in mobile
communications. 3G stands for "third generation"
-- this makes analog cellular technology
generation one and digital/PCS generation two.
3G technology is intended for the true
multimedia cell phone -- typically called
smartphones
-- and features increased bandwidth and transfer
rates to accommodate Web-based applications and
phone-based audio and video files.

Sony Ericsson V800 3G phone |
3G comprises several cellular access
technologies. The three most common ones as of
2005 are:
·
CDMA2000
- based on 2G Code Division Multiple Access (see
Cellular Access
Technologies)
·
WCDMA (UMTS)
- Wideband Code Division Multiple Access
·
TD-SCDMA
- Time-division Synchronous Code-division
Multiple Access
3G networks have potential transfer speeds of up
to 3 Mbps (about 15 seconds to download a
3-minute
MP3
song). For comparison, the fastest 2G phones can
achieve up to 144Kbps (about 8 minutes to
download a 3-minute song). 3G's high data rates
are ideal for downloading information from the
Internet and sending and receiving large,
multimedia files. 3G phones are like
mini-laptops and can accommodate broadband
applications like video conferencing, receiving
streaming video from the Web, sending and
receiving faxes and instantly downloading e-mail
messages with attachments.
Of course, none of this would be possible
without those soaring towers that carry
cell-phone signals from phone to phone.
3G is a cell phone network protocol.
Click here
to learn about
network protocols
for Smartphones
Learn how to protect yourself from harmful radiation
emitted by your cell phone.
Click on the picture below.
| Try any
Q-Link
or
cell chip
for 3 months, absolutely RISK-FREE If you do not feel Q-Link
improves your focus, energy, or well-being, simply return it for a full
refund.
Airtube
headsets have 30 day refund. | |