What is SGSN in LTE?
The Serving GPRS Support Node (SGSN) is a main component of the GPRS network, which handles all packet switched data within the network, e.g. the mobility management and authentication of the users. The SGSN is the service access point to the GPRS network for the mobile user.
What does an SGSN do?
A SGSN is responsible for the delivery of data packets from and to the mobile stations within its geographical service area. Its tasks include packet routing and transfer, mobility management (attach/detach and location management), logical link management, and authentication and charging functions.
What is SGSN and GGSN in telecom?
SGSN and GGSN are two core network nodes that have been part of mobile communications since then. GGSN (Gateway GPRS Support Node) and SGSN (Serving GPRS Support Node) are two core network nodes in 2G GSM and 3G UMTS networks that enable packet-switched mobile internet.
What are the functions of SGSN & GGSN?
SGSN and GGSN are the two core network elements of the general packet radio service which enables Internet to become mobile. It allows mobile users to access text based data services without continuously occupying a specific radio channel (which is not the case when you access voice channel).
What is the difference between SGSN and MME?
The MME is the key control-node for the LTE access-network. The MME also provides the control plane function for mobility between LTE and 2G/3G access networks with the S3 interface terminating at the MME from the SGSN. The MME also terminates the S6a interface towards the HSS for roaming UEs.
What is SGSN and MME?
Multi-access and multi-device services SGSN-MME supports multi-access, 2G/3G/4G/5G and Wi-Fi networks to meet end-users’ requirements for access- and, device-independent services.
What is the maximum data rate supported by GPRS?
In GSM the maximum data rate is 9.6 kbps per time slot. In GPRS the data is packetized which gives in principle an even lower data rate of 9.05 kbps of which 8 kbps is available for the user….Data rates.
| Coding Scheme | Gross bit rate (kbps) | User bit rate (kbps) |
|---|---|---|
| CS-2 | 13.4 | 12 |
| CS-3 | 15.6 | 14.4 |
| CS-4 | 21.4 | 20 |
What is RNC in telecom?
The Radio Network Controller (RNC) is a governing element in the UMTS radio access network (UTRAN) and is responsible for controlling the Node Bs that are connected to it.
What is GGSN in LTE?
A Gateway GPRS Support Node (GGSN) is part of the core network that connects GSM-based 3G networks to the Internet. The GGSN, sometimes known as a wireless router, works in tandem with the Serving GPRS Support Node (SGSN) to keep mobile users connected to the Internet and IP-based applications.
What is preferred LTE?
LTE stands for Long Term Evolution and is sometimes referred to as 4G LTE. It’s a standard for wireless data transmission that allows you to download your favorite music, websites, and video really fast—much faster than you could with the previous technology, 3G.
What is the GGSN in telecom?
The gateway GPRS support node (GGSN) converts the incoming data traffic coming from the mobile users through the Service gateway GPRS support node (SGSN) and forwards it to the relevant network, and vice versa. The GGSN and the SGSN together form the GPRS support nodes (GSN).
What is the use of MME in LTE?
The MME is the main control node for the 3GPP LTE access network. It is responsible for idle-mode UE tracking and paging procedure including re-transmissions.