CSD (Circuit Switch Data) Is the initial generation of data services to access the WAP via GSM Data Call per session. CSD in theory have a transfer rate of up to 14.4 Kbps. Currently, the CSD technology is rarely used.
HSCSD (High Speed Circuit Switched Data) Is an enhancement to GSM networks are still a class with the CSD. HSCSD theoretically have a better transfer rate compared to the CSD, namely to 43.2 Kbps.
GPRS (General Packet Radio Service) Is a technology that allows sending and receiving data faster than the use of technology Circuit Switch Data, or CSD. GPRS is often called 2.5G technology. Facilities provided by the GPRS: e-mail, MMS (picture messages), browsing the Internet. In theory GPRS provide access speeds between 56kbps to 115kbps.
EDGE (Enhanced Data Rate for GSM Evolution) Is the technology evolution of GSM and IS-136., Averaging a speed of 3 times the speed of GPRS. The purpose of this new technology development is to increase the speed of data transmission, spectral efficiency, and enable the use of new applications and increased capacity. EDGE access speed is theoretically about 236kbps. EDGE provides facilities like GPRS (e-mail, MMS, and browsing).
UMTS (Universal Mobile Telecommunications System) Is one mobile phone technology 3rd generation (3G). Also called WCDMA. In addition to providing Internet access facilities (e-mail, MMS, and browsing), UMTS also provides video streaming, video conferencing, and video calling. In theory UMTS access speeds around 384kbps.
HSDPA (High Speed Downlink Packet Access) It is protocol in mobile phone-based 3G UMTS network that provides data transfer 5 times faster. HSDPA is often referred to as generation 3.5 (3.5G) for HSDPA is still running on the 3G platform. In theory the speed of around 1.8Mbps HSDPA data access up to 3.7 Mbps (downlink).
HSCSD (High Speed Circuit Switched Data) Is an enhancement to GSM networks are still a class with the CSD. HSCSD theoretically have a better transfer rate compared to the CSD, namely to 43.2 Kbps.
GPRS (General Packet Radio Service) Is a technology that allows sending and receiving data faster than the use of technology Circuit Switch Data, or CSD. GPRS is often called 2.5G technology. Facilities provided by the GPRS: e-mail, MMS (picture messages), browsing the Internet. In theory GPRS provide access speeds between 56kbps to 115kbps.
EDGE (Enhanced Data Rate for GSM Evolution) Is the technology evolution of GSM and IS-136., Averaging a speed of 3 times the speed of GPRS. The purpose of this new technology development is to increase the speed of data transmission, spectral efficiency, and enable the use of new applications and increased capacity. EDGE access speed is theoretically about 236kbps. EDGE provides facilities like GPRS (e-mail, MMS, and browsing).
UMTS (Universal Mobile Telecommunications System) Is one mobile phone technology 3rd generation (3G). Also called WCDMA. In addition to providing Internet access facilities (e-mail, MMS, and browsing), UMTS also provides video streaming, video conferencing, and video calling. In theory UMTS access speeds around 384kbps.
HSDPA (High Speed Downlink Packet Access) It is protocol in mobile phone-based 3G UMTS network that provides data transfer 5 times faster. HSDPA is often referred to as generation 3.5 (3.5G) for HSDPA is still running on the 3G platform. In theory the speed of around 1.8Mbps HSDPA data access up to 3.7 Mbps (downlink).
HSUPA (High-Speed Uplink Packet Access) 3G mobile phone is a protocol that is still in the HSPA family. Name HSUPA was created by Nokia. However, 3GPP use other terms concerning it names, namely Enhanced Uplink (Eul). This HSUPA data speeds theoretically about 5.76 Mbps (uplink).
Thanks, Its a great information about GSM phone working. I was unaware about this. You give a great explanation by pictures of this circuit diagram. I always use GPRS technique to get internet.
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