Sv Interface 

The SV interface is another network interface in the LTE network.  Sv interface is between the MME and MSC or between SGSN and MSC.  The specification is in the document. The network can support SRVCC, only if there is Sv interface.  This is a new interface to support SRVCC.

Protocol Specification for Sv Interface :

The interface is based on the GTP protocol.  There are the following messages in the protocol specification.

  • SRVCC PS to CS Request
  • SRVCC PS to CS Response
  • SRVCC PS to CS Complete Notification
  • SRVCC PS to CS Complete Acknowledge
  • SRVCC PS to CS Cancel Notification
  • SRVCC PS to CS Cancel Acknowledge

 

 

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