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Key Technologies
Third Generation Mobile Telephony
3G.
3G is an ITU(International Telecommunication Union) specification for the third generation (analog cellular was the first generation, digital PCS the second) of mobile communications technology.3G promises increased bandwidth up to 384 Kbps when a device is stationary or moving at pedestrian speed, 128 Kbps in a car, and 2 Mbps in fixed applications. Implemented in Europe as UMTS and CDMA2000 in North America, its goals are high-quality multimedia and advanced global roaming
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Internet Protocol
IP.
IP specifies the format of packets, also called datagrams, and the addressing scheme. Most networks combine IP with a higher-level protocol called Transmission Control Protocol (TCP), which establishes a virtual connection between a destination and a source.
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IPTV
IPTV.
IPTV uses a two-way digital broadcast signal that is sent through a switched telephone or cable network by way of a broadband connection, along with a set top box programmed with software that can handle viewer requests to access media sources. A television is connected to the set top box that handles the task of decoding the IP video and converts it into standard television signals. The Switched Video Service (SVS) system allows viewers to access broadcast network channels, subscription services, and movies on demand.
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Fixed-Mobile Convergence
FMC.
FMC is the way to connect the mobile phone to the fixed line infrastructure. With the convergence between the mobile and fixed line networks, telecommunications operators can provide services to users irrespective of their location, access technology, and terminal.
With FMC, wire line service providers may no longer be tethered to landline networks, while wireless network operators will be able to use the most robust network resources available to meet growing demand from mobile subscribers.
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High-Speed DownlinkPacket Access
HSDPA.
HSDPA is a packet-based data service in WCDMA downlink with data transmission up to 8-10 Mbps (and 20 Mbps for MIMO systems) over a 5MHz bandwidth in WCDMA downlink. The high speeds of HSDPA are achieved through techniques including: 16 Quadrature Amplitude Modulation, variable error coding, and incremental redundancy.
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IP Multimedia Subsystem
IMS.
Defined by 3GPP and 3GPP2 standards and organizations based on IETF Internet protocols, IMS is a unified IP-based architecture that supports a wide range of services enabled by the flexibility of Session Initiation Protocol (SIP). The IMS architecture can support multiple application servers providing traditional telephony services and non-telephony services such as instant messaging, push-to-talk, video streaming, multimedia messaging, etc.
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Information Communications Technology
ICT.
Information Communications Technology (ICT) is an umbrella term that includes all technologies for the communication of information.
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