IP protocol in Mobile Networks
IP protocol (Internet Protocol), is the principal networking protocol that is responsible for exchanging data packets between network nodes.
IP protocol is the backbone of modern mobile networks. It enables the exchange of data between different network nodes. And it enables data transfer, and the delivery of IP services to mobile network users.
During session establishment, the mobile network assigns an IP address to the mobile device. This IP address allows the mobile device to communicate over the network.
In the evolution of mobile networks, the transition from 2G/3G to 4G and 5G, has further emphasised the role of IP. As 4G and 5G networks are fully based on IP protocol, which provides better network efficiency.
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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 IP address for this Bearer. The UE uses this IP address, in order to communicate with the PDN. In addition, the PGW assigns a QoS for this Bearer, which guarantees the QoS for the data…
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LTE (4G) Network Architecture
LTE (4G) Network Nodes LTE refers to 'Long Term Evolution', and the architecture of the LTE (4G) network is as following, eNodeB The eNodeB is the 4G site that the UE connects to. It provides the radio interface to the UE. MME MME refers to 'Mobility Management Entity'. The MME is responsible for authenticating the…
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Direct Tunneling in 3G
In order to reduce the load of passing the user plan data by the SGSN, the SGSN may decide to establish direct tunneling between the RNC and the GGSN. This will make the user plan data pass directly between the RNC and the GGSN, while keeping the control plan passing by the SGSN. This will…
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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 address for this 'PDP. This is because the MS will use this 'IP address' to deal with the PDN. In addition, the GGSN should assign a Quality of Service 'QoS' for this 'PDP'. 'PDP context'…
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