GPRS

 What is the first generation of mobile technology called?

The first generation of mobile technology is called 1G and it is analog with only mobile voice services like AMPS, NMT-450, TACS, etc.

What was the main focus of 2G mobile technology?

The main focus of 2G mobile technology was digital communication and it was mostly for voice services but data delivery was possible too.

What was the main emphasis of 3G mobile technology?

The main emphasis of 3G mobile technology was data services, where voice services were also possible.

What does 4G provide to users compared to previous generations of mobile technology?

4G provides a comprehensive and secure IP based solution where facilities such as voice, data and streamed multimedia are provided to users on an "Anytime, Anywhere" basis and at much higher data rates compared to previous generations.

What are the important technologies for 5G?

The important technologies for 5G are 802.11 Wireless Local Area Networks (WLAN), 802.16 Wireless Metropolitan Area Networks (WMAN), Ad-hoc Wireless Personal Area Network (WPAN), and Wireless networks for digital Communication.

What is General Packet Radio Service (GPRS)?

GPRS is a service in GSM Release '97 that provides packet switched data services to the mobile station (MS) while maintaining the GSM BSS access technologies.

What is the purpose of GPRS?

GPRS was introduced to enhance GSM data services, especially for bursty Internet/intranet traffic, by using a packet-based switching technique.

What are the phases of GPRS standardization by ETSI?

GPRS has two phases of standardization by ETSI: Phase 1 and Phase 2. Phase 1 includes point-to-point services and the complete basic GPRS infrastructure, while Phase 2 adds additional services like enhanced QoS support and point-to-multipoint connections.

What are the key features of GPRS Phase 2?

GPRS Phase 2 includes support for IPv4 and IPv6, BSS coordination of radio resource allocation for class A GPRS services, enhanced QoS support, charging and billing for GPRS, point-to-multipoint services, and access to ISPs and intranets.

What are the main advantages of GPRS for users?

The main advantages of GPRS for users are instant access to data, charging based on the amount of data transferred, and higher transmission speeds.

What are the main advantages of GPRS for operators?

The main advantages of GPRS for operators are fast network roll-out with minimum investment, the use of excess voice capacity for GPRS data, and a smooth path to 3G services.

What is the difference between circuit switching and packet switching?

In circuit switching, a connection is established between two points and resources are reserved for the complete duration of the call. In packet switching, the data to be transferred is divided into packets, which are then sent through the network and re-assembled at the receiving end.

What are the requirements of a GPRS network?

The requirements of a GPRS network are to use as much of the existing GSM infrastructure as possible, support one or more packet switched connections, support different Quality of Service subscriptions, be compatible with future 3rd and 4th generation mobile communication systems, support both point-to-point and point-to-multipoint data connections, and provide secure access to external networks.

What are the elements of a GPRS network architecture?

The elements of a GPRS network architecture are Packet Control Unit (PCU), Serving GPRS Support Node (SGSN), Gateway GPRS Support Node (GGSN), Border Gateway (BG), Charging Gateway (CG), Legal Interception Gateway (LIG), Domain Name System (DNS), and firewalls.