In wireless applications, the Gy interface is a 4G interface between the PCEF and OCS.

What is the difference between Gx and Gy interface?

The PGW (Packet Data Gateway) enforces the QoS rules received from PCRF and monitors usage and status. The Sy references the interface between PCRF and the OCS. The Gy reference the interface between a PGW and an OCS. Gx references the interface between PCRF and PGW/PCEF .

What is Diameter Gy?

Diameter Gy Interface Gy is another diameter interface between PCEF and OCS having application id 14 for a charging application. For charging PCEF interacts with the OCS, sends the charging events to OCS, and receives events and answers.

What is Gy application?

Credit Control (Gy//Ro) Application ( 4 ) The Gy interface is used for online charging between the OCS and the PDN Gateway (PGW), while the Ro interface is between the OCS and the IMS Call Session Control Function (CSCF). The two interfaces are functionally equivalent.

What is quota holding time?

Quota holding indicates the number of seconds for which the quota granted by the OCS, is held by the gateway when no traffic is received for that rating group.

What is PCRF and PCEF?

PCRF and PCEF in LTE | Functions of PCRF and PCEF in LTE. PCRF stands for Policy and Charging Rules Function and PCEF stands for Policy and Charging Enforcement Function.

What is Gx and Gy in telecom?

Gx interface enables signaling of PCC decisions, negotiation of IP-CAN bearer establishment mode and termination of Gx session . Gy. It is online charging reference point. Gy lies between PCEF (Policy Control Enforcement Function) and OCS (Online Charging Function).

What is the difference between HSS and HLR?

HLR Home Location Register: HLR is a subscriber database in GSM architecture that contains the subscriber profiles and information about the subscriber’s physical location. HSS Home Subscriber Server: HSS is a subscriber database in UMTS architecture that is similar to the GSM Home Location Register (HLR).

What is AVP code?

AVP Code (4-bytes) The AVP Code, combined with the Vendor-Id field, identifies the attribute uniquely. AVP numbers 256 and above are used for Diameter, which are allocated by IANA. AVP numbers 1 through 255 are reserved for backward compatibility with RADIUS, without setting the Vendor-Id. field.

What is RF interface?

The Rf interface is the offline charging interface between the Charging Trigger Function (CTF) (for example, P-GW, P-CSCF) and the Charging Collection Function (CCF). The Rf interface specification for LTE/GPRS/eHRPD offline charging is based on 3GPP TS 32.299 V8. 6.0, 3GPP TS 32.251 V8.

What is OCS quota?

Quota consumption, used by the OCS, indicates to the client that the quota consumption must be stopped after a period at session termination or when no packets are received. Time quota threshold indicates the threshold in seconds when the granted quota is time.

What is Gygy interface?

Gy interface allows online credit control for service data flow based charging. As always, today is also good way to start with a quite high level abstract figure. So.. please enjoy. Fig. 1. Gy reference point at the Policy Charging and Control (PCC) architecture

What is the charging application specification for Gy?

The charging application specification is given in diameter standard 4006 . The following section describes call flow GTP and Diameter messages for charging over the Gy interface. Gy uses two messages over Diameter protocol, Credit control request (CCR), and Credit Control Answer (CCA).

What is PCEF Gy interface?

Gy is another diameter interface between PCEF and OCS having application id 14 for a charging application. So first we will understand what is PCEF and OCS. PCEF’s full form is Policy and Charging Enforcement Function. This component is located inside GGSN or PGW. Gy interface is for online charging.

What is the use of the GX interface?

Gx interface enables signaling of PCC decisions, negotiation of IP-CAN bearer establishment mode and termination of Gx session . It is online charging reference point. Gy lies between PCEF (Policy Control Enforcement Function) and OCS (Online Charging Function).