Gy Interface

Gy interface is 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)