Content for  TS 24.167  Word version:  18.1.0

The interior node describes the IMS registration handling policy part.

• Occurrence: ZeroOrOne
• Format: node
• Access Types: Get, Replace
• Values: N/A

The IMS registration handling policy part consists of a mandatory Stay_Registered_When_VoPS_Not_Supported child node indicating whether the UE stays registered when VoPS is not supported. If it is set to false, the Deregistration_Timer child node indicates the time duration in second before deregistration.

The leaf indicates whether the UE stays registered or not from IMS when moving to area where IMS Voice Over PS Session is not supported.

• Occurrence: One
• Format: bool
• Access Types: Get, Replace
• Values: 0, 1
  1
  Indicates that the UE maintains the registration as required for IMS services;
  0
  Indicates that the UE deregisters from IMS as defined in Annex B, Annex L, Annex U and Annex W in TS 24.229.

The Deregistration_Timer leaf indicates the time before deregistration on the UE when moving to area where IMS Voice Over PS Session is not supported.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: <The time a UE stays registered when VoPS_Not_Supported is received>

The use of this leaf is as defined in Annex B, Annex L, Annex U and Annex W in TS 24.229. The timer value shall be given in seconds. The Deregistration_Timer is a 16 bits unsigned integer.

The optional Timer_Emerg-request leaf defines the operator's emergency request timeout policy.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: <The maximum time between sending of an initial INVITE request for an emergency session and receiving a 18x response to the INVITE request.>

The Timer_Emerg-request leaf is the maximum time between sending of an initial INVITE request for an emergency session and receiving an 18x response to the INVITE request. The timer value shall be given in seconds. The configurable value is between 5 and 15 seconds as defined in TS 24.229. The Timer_Emerg-request is an 8 bits unsigned integer.

This interior node describes the default QoS Flow usage restriction policy. The policy is used to control whether the UE is allowed to send media on the 5G QoS Flow associated with the default QoS rule.

• Occurrence: ZeroOrOne
• Format: node
• Access Types: Get, Replace
• Values: N/A

This interior node describes the default QoS Flow usage restriction policy part.

• Occurrence: ZeroOrMore
• Format: node
• Access Types: Get, Replace
• Values: N/A

This leaf indicates a media type condition.

• Occurrence: One
• Format: chr
• Access Types: Get, Replace
• Values: a media type as described in Section 8.2.1 of RFC 4566