3G - Third Generation Protocol
3G or Third Generation Protocols - Wireless Data Transfer Standards for transferring much higher data rates than first or second generation devices. 3G Protocols are intended for data applications and expand upon the technologies needed for purely voice transmission.
3G technology used in the UK is called UMTS and operates at 2100 MHz. (2.1GHz).
In a nutshell - 3G will support multimedia full motion video , music and other bandwidth-hungry applications
Apple iPhone iPod
Nokia 6300
Sony Ericsson W880i
A2DP - Advanced Audio Distribution Profile
AADP or A2DP Advanced Audio Distribution Profile is a one-way wireless Bluetooth "profile" for streaming audio from a bluetooth enabled device such as a mobile music phone to wireless headphones.
AAC, AAC+ and eAAC+ Advanced Audio Coding
AAC Advanced Audio Coding is part of the MPEG-2 and MPEG-4 standards used for audio compression.
AAC or more accurately MPEG-4 AAC gives greater compression and better sound quality than MP3.
Coding Technologies produced an advanced algorithm the creates compressed audio files with near CD-quality in sound packets as small as 32 Kbps.
AAC+ uses Spectral Band Replication (SBR) and Parametric Stereo (PS) to encode different sound registers at different rates and also to record a mono signal with a data stream carrying interpreted stereo differences.
A-GPS - Assisted Global Positioning System
GPS is a satellite based positioning system but may not provide a reliable location when there is a poor quality signal.
A classic example is in major cities when surrounded by tall buildings the satellite signal bounces off nearby buildings creating a multipath signal i.e there are several possible location options and a signal time delay caused by the increased signal path gives an incorrect distance for accurate triangulation.
Assisted GPS, or A-GPS uses an assistance server.
The Assistance Server finds the approximate location of the sat-nav phone by identifying which cell site the mobile phone is using to connect to the network.
The Assistance Server help interpret the disrupted or fragmentary signals transmitted by mobile phones with its reference satellite signal to relay a mobile phone - satnav position faster than Standard GPS.
It is also able to provide satellite orbital data to the handset to assit it in finding and locking onto a suitable GPS satellite for position verification.
Blue Tooth
Bluetooth is an industrial specification agreed to help devices from a variety of portable electronics manufacturers to communicate and interact successfully over wireless personal area networks (PANs). Bluetooth allows connection and information exchange using a short range radio transmitter/receiver between devices such as:
- mobile phones
- PCs
- laptops
- printers
- digital cameras
- video game consoles
DVD
DVD Short for Digital Versatile Disc (sometimes considered Digital Video Disc), a high storage capacity flat disc taking the same form as a CD-ROM and holding 4.7GB (gigabytes) or more of Information. This allows a full-length film to be stored on one disc.
eAAC+
see above
Edge
Edge
FM
FM
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GPRS
GPS
GPS
Hot-Swap
Hot-Swap
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HSDPA
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HTML
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IM
IMAP4
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Infra Red
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Memory Stick Micro
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MP
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Smartphone
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SMS
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Symbian
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