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 is SGSN 3G?
The Serving GPRS Support Node (SGSN) is the node that is serving the MS/UE. The SGSN supports GPRS and/or UMTS. The SGSN keeps track of the location of an individual MS/UE and performs security functions and access control.
What does a SGSN do in a GPRS network?
Serving GPRS support node (SGSN)—connects the radio access network (RAN) to the GPRS/UMTS core and tunnels user sessions to the GGSN. The SGSN sends data to and receives data from mobile stations, and maintains information about the location of a mobile station (MS).
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 difference between GGSN and SGSN?
SGSN stands for Serving GPRS Support Node and is a network entity that provides the packet-switched capability to mobile networks. GGSN stands for Gateway GPRS Support Node and is a gateway situated between SGSN and external data networks.
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 access technique used by an LTE or LTE a network?
4G – LTE/LTE-A Other advance that LTE systems have is the use of multiple antenna technique. LTE is the first global mobile cellular system to use MIMO (Multiple-Input Multiple-Output) technology. The use of multiple antennas can improve significantly the communication performance through a greater channel capacity.
What is the function 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.
What is Pbch scrambled with?
3. What is the PBCH scrambled with? Explanation: The PBCH is scrambled prior to modulation with a cell-specific sequence that depends on the cells’ identity. In contrast to the synchronization signals, the PBCH is transmitted on the 72 reserved subcarriers, which are QPSK-modulated.
What is better LTE or LTE?
The most important thing to know is that LTE-A promises to deliver true 4G speeds, unlike current LTE networks. You can expect the real-world speed of LTE-A to be two to three times faster than today’s LTE. Having more users on wireless networks means that the infrastructure needs to advance to accommodate them all.
Which is faster LTE or LTE?
What are the key differences between LTE & LTE-A and LTE-A Pro? Data speeds are set to be three times faster than LTE-A (in excess of 3Gbps whereas LTE-A was just 1Gbs). User experience will be significantly improved as a result optimising the capacity, performance and functionality of existing LTE-A networks.
What is the difference between SGSN and 4G LTE?
Later, the 3G UMTS networks also followed the same approach and continued with separate circuit-switched and packet-switched network entities that included SGSN and GGSN. 4G LTE networks, however, use a more advanced mobile core network called the EPC or Evolved Packet Core. What is SGSN and how it works?
What is the difference between SGSN and GGSN in GPRS?
The SGSN or the Serving GPRS support node handles data traffic. The SGSN handles the allocation of IP addresses to the mobile phones, serves as the interface to the charging system and provides the mobile phone with the IP address to reach the GGSN or the Gateway GPRS support node which is the interface to the internet.
What is SGSN in GSM?
SGSN stands for Serving GPRS Support Node, and it is an essential network entity in GPRS (General Packet Radio Service), EDGE (Enhanced Data for Global Evolution) and 3G UMTS networks. SGSN (together with GGSN) was added to introduce the packet-switched technology within 2G GSM networks.
What is the RNS interface in 3G network?
Below diagram shows the interfaces exist between the MS and the GGSN in user plan in 3G network, The RNS means ‘Radio Network Subsystem’. And it contains the RNC and the NodB.