In wireless applications, the Gy interface is a 4G interface between the PCEF and OCS.
Overview
Gy interface is between the PCEF and OCS. It uses Diameter over TCP, UDP, SCTP transport protocol.
Network Diagram
Messages
- Credit Control Requests/Answers Initial, Update and Terminate (CCR/A-I/U/T)
- Disconnect Peer Requests/Answers (DPR/A)
Call Flows
Standards
- 3GPP TS 32.299 (Gy)
- IETF RFC 6733, IETF RFC 3588, IETF RFC 5516 (Diameter)
- IETF RFC 4960 (SCTP)
- IETF RFC 793 (TCP)
Related Products and Protocols
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