Page 1384 - 5G Basics - Core Network Aspects

3 Signalling aspects

Message format:

< UCHS-RSP-Message > ::= < Message Header >
{ Service-Platform-Id }
{ BNG-Id }
{ Result }
Meanings and explanations:

1) Service-Platform-Id uniquely specifies the service platform;
2) BNG-Id uniquely specifies the BNG element;
3) Result shows the handling result of unchaining services.

7.1.2.5 Update service request message and response message
The update service request (US-REQ) message, indicated by the message type in the message header field, is
sent by the services/service orchestrator to update the attributes of the service nodes or service instances.
Message format:
< US-REQ-Message > ::= < Message Header >
{ Service-Platform-Id }
{ BNG-Id }
{ Service-Id }
{ Service-Location }
{ Service-Instance-Id }
*{ Service-Attribute }
Meanings and explanations:
1) Service-Platform-Id uniquely specifies the service platform;
2) BNG-Id uniquely specifies the BNG element;
3) Service-Id uniquely identifies the service node, which provides the specified services;
4) Service-Location defines the location of the service node, so that the service platform can
locate the service node;
5) Service-Instance-Id is optional. If the service instance ID is not provided, it means only one
service instance is running in the service node;
6) Service-Attribute is used for the service attributes associated with the service node or the
service instance. There may be multiple service attribute items.
The response message to the US-REQ message is defined as the update service response (US-RSP) message.

The US-RSP message, indicated by the message type in the message header field, is sent by the BNG to the
service platform in response to the US-REQ message.

Message format:
< US-RSP-Message > ::= < Message Header >
{ Service-Platform-Id }
{ BNG-Id }
{ Result }
Meanings and explanations:

1) Service-Platform-Id uniquely specifies the service platform;
2) BNG-Id uniquely specifies the BNG element;
3) Result shows the handling result of updating service attributes.

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