What does PCRF do in LTE?

The PCRF provides the QoS authorization (QoS class identifier [QCI] and bit rates) that decides how a certain data flow will be treated in the PCEF and ensures that this is in accordance with the user’s subscription profile. PCRF provides service management and control of the 4G service.

What is PCRF in VoLTE?

PCRF plays a key role in VoLTE as a mediator of network resources for the IP Multimedia Systems network for establishing the calls and allocating the requested bandwidth to the call bearer with configured attributes. This enables an operator to offer differentiated voice services to their user(s) by charging a premium.

What does PCRF stand for in LTE architecture?

Policy and charging rules function (PCRF)—policy equipment for bandwidth and charging on multimedia networks—supports service data flow protection, policy enforcement and flow-based charging.

What is 4G LTE call flow?

The LTE call flow navigates over the elements of the network going through certain steps in order to complete its end-to-end signaling from the user equipment (UE) all the way to the rest of the network components.

What does the PCRF do?

The PCRF is the part of the network architecture that aggregates information to and from the network, operational support systems, and other sources (such as portals) in real time, supporting the creation of rules and then automatically making policy decisions for each subscriber active on the network.

What is difference between PCRF and PCEF?

PCEF system is part of PCRF which is shown in the figure-1 and figure-2. PCEF is situated inside PDN GW (Packet Data Network Gateway) or in short PGW. The major difference between PCRF and PCEF is that PCEF does support offline and online charging interactions while PCRF does not support these.

What is the difference between PCEF and PCRF?

What is the interface between PGW and PCRF?

Interface between the PGW and the Policy and Charging Rules Function (PCRF). In particular, this is the interface between the Policy Control Enforcement Function (PCEF) or the PGW and the PCRF. Operational and maintenance interface, used to manage the device. Interface between the PGW and any packet data network.

What is 5G call flow?

5G Voice call establishes circuits between calling and called party for voice transmission and reception over 5G network. There are two types of voice calls viz. Mobile Originating Call and Mobile Terminating Call. Examples include normal voice telephony calls using 4G/5G mobile phones without using any applications.

What is Huawei PCRF?

As defined by the 3GPP, Policy and Charging Rules Function (PCRF) is the decision center of the entire policy control system. It controls the bandwidth policy of every individual user based on their individual usage.

Is PCRF part of IMS?

PCRF is a significant part of the IMS architectures; however, it isn’t exclusive to the 3GPP network in which it’s certified. It arrives pre-integrated in an IT server and works across wireless networks. PCRF is also an important element in SPIT (Service Provider Information Technology).