5G Core Network Architecture
In this post, we will learn 5G Network Architecture. The control plane in 5G network includes the AMF, the SMF, the AUSF, the UDM, […]
How SGSN selects the GGSN in GPRS, using iDNS and eDNS
The network is not having only one GGSN, it may have a few GGSNs. Also, it is having a lot […]
QoS ‘Quality of Service’ in GPRS
QoS refers to ‘Quality of Service’. After ‘PDP context activation’ procedure completes, a ‘PDP context’ shall exist on the MS, […]
Your Guide for PDP context activation procedure in 3G
At the end of this procedure, ‘PDP’ is established between the MS and the GGSN. The GGSN assigns an IP […]
Combined Attach procedure in GPRS
‘Combined Attach’ means the MS is making an attach to the CS and PS domains in the same time. And […]
Gs interface – SGSN/MSC association in GPRS
The Gs interface is the interface between the SGSN, and the MSC/VLR. In other words, it is the interface between […]
PMM state transition in 3G
The PMM state are the Mobility management state for the MM context exist on the MS and on the SGSN […]
2G/3G Mobility Management states
The GPRS Mobility Management determines if the user equipment is registered to the network or not. In another words, it […]
Routing Area Update ‘RAU’ in GPRS
Types of Routing Area Update ‘RAU’ Intra-SGSN RAU The Intra SGSN RAU occurs when the MS moves from one RA […]
Your reference for GPRS Attach Procedure
GPRS Attach procedure is the procedure in which the MS registers to the network. In other words, the network knows […]
Gn Interface and Gp Interface
Gn/Gp interface, is the interface between the SGSNs and the GGSNs. ‘Gn interface’ is the interface between the SGSNs and […]
Roaming Architecture in 2G/3G
To understand Roaming architecture in GPRS, there are a few terms we have to understand, Outbound roaming The outbound roaming […]
IMSI, MSISDN, IMEI, P-TMSI – Mobile Identifiers
In case there is an MS that is having Dual SIM, every SIM is having its own IMSI, MSISDN, IMEI, […]
PLMN, LAC, and RAC – GPRS network identifiers
The mobile network contains many RNCs and BSCs. The RNCs connect to the 3G sites, and the BSCs connect to […]
What is PDP, and Attach in GPRS
What is PDP To know what is ‘PDP’, we should know that in order for an MS to be able […]
SGSN, GGSN – 2G/3G Network Architecture and Interfaces
2G/3G Network Nodes The following graph shows the 2G/3G Network Architecture. It includes the SGSN, GGSN, HLR, CG, PDN, RNC, […]
Your Guide to Mobile Network Technologies, GSM/GPRS/UMTS/LTE
Mobile network technologies has evolved over time to satisfy the increasing customer needs for higher data rates and better services. […]
Telecommunication jobs: what is ‘PS Core Engineer’
For people who would like to know about telecommunication jobs, the mobile network core has a valuable set of jobs. […]
5G Network Slicing
5G Network Slicing means that, to divide the physical network that the operator is having, into different logical networks with […]
What is 5G CUPS in 5G Network ?
In this post we will learn what is 5G CUPS. CUPS refers to “control plane and user plane separation”. 5G […]
5G Technology – New Radio (NR)
5G technology provides higher throughput, with low latency and more communication reliability, for the communication between end devices. 5G Technology […]
5G Introduction
In this post we will discuss 5G Introduction. 5G is the fifth generation mobile network. It enables higher data rates […]
What is Tracking Area in LTE ?
Here, we will discuss the Location identifiers in LTE mobile network, including the mobile operator identifier, the Tracking Area identifier, […]
Offline Charging vs. Online Charging in LTE
The type of charging in LTE mobile network, may be Offline Charging or Online Charging. The main difference between the […]
Your Guide to LTE Interfaces (S11, S5, S8, SGi, S1-U)
Let’s talk about LTE Interfaces. In LTE, every interface between two network nodes, is having an interface name, that represents […]
VoLTE (Voice over LTE) Introduction
While the UE attached to LTE network, the UE can initiate, or receive a voice or a video call. The […]
What is an ‘EPS Bearer’ in LTE ?
During ‘LTE attach’ procedure, the network establishes this EPS Bearer between the UE and the PGW. The PGW assigns an […]