4G CUPS (Control and User Plane Separation) in Mobile Networks
4G CUPS refers to 4G "Control and User Plane Separation". It is a 4G network architecture concept that was introduced in 3GPP Release 14 for 4G LTE networks.
In a traditional 4G LTE network architecture, the control plane (signaling), and user plane (data) functions, exist on the same network elements. While using 4G CUPS, it separates between these functions. This allows the control plane and user plane, to exist as independent network functions.
By separating the control and user plane, the network can scale these functions independently based on the specific demands and requirements. This allows for more efficient use of network resources, and the ability to optimise the control and user plane functions separately.
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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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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, the SGSN, and the GGSN. In addition, the GGSN assigns a QoS for this 'PDP context'. This QoS describes the priority that the nodes shall give to traffic belonging to this 'PDP context'. The subscription…
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