Gy interface in a mobile network
Gy interface is a reference point between the mobile network gateway element (e.g. PGW in 4G and UPF in 5G), and the Online Charging System (OCS).
Gy interface is used in real-time charging and credit control, allowing mobile network operators to effectively manage and monetize the subscriber's data usage.
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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
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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
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