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Questions and Answers
What is the modulation technique used in GPRS for data transfer?
What type of technology is used for the duration of connection in GPRS?
What is the peak data rate supported by GPRS?
Which technology does GPRS use for sharing network and air interface resources?
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What is the physical data channel called in GPRS?
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Which logical data channel is responsible for conveying signaling information in GPRS?
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In GPRS, which channel is used for uplink transfer initiation from mobile station to base station?
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What is the purpose of the Packet Broadcast Control Channel (PBCCH) in GPRS?
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Which technology was the first to introduce packet technology and support higher data rates in mobile communication?
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What was the data rate for GSM prior to the introduction of GPRS?
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What modulation technique was introduced in EDGE to increase data rates?
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What was the primary purpose of GSM Evolution for Data Access?
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What is the data rate per time slot achieved after corrections in GPRS?
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Which GPRS network element is responsible for converting GPRS packets from SGSN to the PDP format and performing authentication?
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What is the width of the radio channel on which GPRS operates?
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What is the maximum data rate achieved when GPRS combines up to 8 time slots?
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Which protocol is used to tunnel user data packets and related signaling information between GSNs in GPRS?
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What is the primary function of SGSN in GPRS network architecture?
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Which network element interfaces the GPRS backbone network and external packet data networks in GPRS?
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What type of networks are GSNs connected through in GPRS?
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What does GPRS Register integrate with in maintaining GPRS subscriber data and routing information?
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What type of packet data networks can GPRS interconnect with?
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What does GGSN resemble in the context of GPRS network architecture?
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What are the three states for the mobile station in GPRS mobile state and location management?
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Study Notes
GPRS Network Architecture and Operation
- GPRS operates on a 200 kHz wide radio channel and carries a digital data stream of 271 kbps, divided into 8 time slots each carrying 34 kbps per slot.
- The data rate achieved after corrections is 14 kbps per time slot, and GPRS can combine up to 8 time slots for a data rate of 114 kbps.
- GPRS network architecture includes GSNs, with SGSN (Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node) being key elements.
- SGSN is responsible for delivering data packets to mobile stations, packet routing, transfer, mobility management, and authentication.
- GGSN interfaces the GPRS backbone network and external packet data networks, converting GPRS packets from SGSN to the PDP format and performing authentication.
- GPRS Register is integrated with GSM-HLR, maintaining GPRS subscriber data and routing information, and storing the current SGSN address.
- GSNs are connected through IP-based backbone networks, including intra-PLMN and inter-PLMN networks, requiring roaming agreements.
- GPRS Tunneling Protocol (GTP) is used to tunnel user data packets and related signaling information between GSNs.
- GPRS can interconnect with IP-based packet data networks, supporting both IPv4 and IPv6, and resembling an IP subnetwork with GGSN acting as an IP router.
- GPRS session management involves procedures such as attach, detach, PDP context activation, and Quality of Service attributes.
- GPRS mobile state and location management includes three states for the mobile station: idle, ready, and standby, along with routing area updates and mobility management.
- GPRS logical channels include the Packet Data Channel (PDCH), which is a physical channel for GPRS traffic, allocated based on current traffic load and service priority.
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Description
Test your knowledge of GPRS network architecture and operation with this quiz. Explore key elements such as SGSN, GGSN, GPRS Register, and GPRS Tunneling Protocol, and understand the data rates, logical channels, and session management involved in GPRS technology.
