Content for TS 23.334 Word version: 18.1.0

1… 4… 5… 5.11… 5.12… 5.14… 5.18… 5.19… 5.20… 5.21… 6… 6.1.6… 6.1.11… 6.2… 6.2.10… 6.2.10.3.1.2 6.2.10.3.2 6.2.10.4… 6.2.10.4.3… 6.2.10.5 6.2.10.6… 6.2.10A… 6.2.13… 6.2.14… 6.2.14.3 6.2.14.4… 6.2.15… 6.2.17… 6.2.17.3… 6.2.17.5… 6.2.18… 6.2.20 6.2.21… 6.2.22… 6.2.22.3… 6.2.22.3.2 6.2.23 6.2.24 6.2.25 7 8… 8.3 8.4 8.5… 8.23…

8.5 Release AGW Termination 8.6 Termination heartbeat indication 8.7 IMS-AGW Out-of-Service 8.8 IMS-AGW Communication Up 8.9 IMS-AGW Restoration 8.10 IMS-AGW Register 8.11 IMS-ALG Restoration 8.12 IMS-AGW Re-register 8.13 IMS-ALG Ordered Re-registration 8.14 Audit Value 8.15 Audit Capability 8.16 Capability Update 8.17 IMS-ALG Out of Service 8.18 IMS-AGW Resource Congestion Handling - Activate 8.19 IMS-AGW Resource Congestion Handling - Indication 8.20 Inactivity Timeout Activate 8.21 Inactivity Timeout Notification 8.22 Command Reject

8.5 Release AGW Termination p. 206

This procedure is used to release a termination towards the IMS and free all related resources.

Table 8.5.1: Procedures between IMS-ALG and IMS-AGW: Release AGW Termination

Procedure	Initiated	Information element name	Information element required	Information element description
Release AGW Termination	IMS-ALG	Context	M	This information element indicates the existing context for the bearer termination.
Release AGW Termination	IMS-ALG	Bearer Termination	M	This information element indicates the bearer termination to be released.
Release AGW Termination Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
Release AGW Termination Ack	IMS-AGW	Bearer Termination	M	This information element indicates the bearer termination where the command was executed.

8.6 Termination heartbeat indication p. 207

This procedure is used to report a termination heartbeat.

Table 8.6.1: Procedures between IMS-ALG and IMS-AGW: Termination heartbeat indication

Procedure	Initiated	Information element name	Information element required	Information element description
Termination heartbeat indication	IMS-AGW	Context	M	This information element indicates the context for the bearer termination.
		Bearer Termination	M	This information element indicates the bearer termination for which the termination heartbeat is reported.
		Termination heartbeat	M	Hanging Termination event, as defined in TS 29.334.
Termination heartbeat indication Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
Termination heartbeat indication Ack	IMS-ALG	Bearer Termination	M	This information element indicates the bearer termination where the command was executed.

8.7 IMS-AGW Out-of-Service p. 207

This procedure is used to indicate that the IMS-AGW will go out of service or is maintenance locked.

Table 8.7.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Out-of-Service

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Out-of-Service	IMS-AGW	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for service change.
		Method	M	This information element indicates the method for service change.
IMS-AGW Out-of-Service Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
IMS-AGW Out-of-Service Ack	IMS-ALG	Root Termination	M	This information element indicates the root termination where the command was executed.

8.8 IMS-AGW Communication Up p. 208

This procedure is used to indicate that the IMS-AGW is back in service using an existing control association.

Table 8.8.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Communication Up

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Communication Up	IMS-AGW	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for service change.
		Method	M	This information element indicates the method for service change.
IMS-AGW Communication Up Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
		Root Termination	M	This information element indicates the root termination where the command was executed.
		IMS-ALG Address	O	This information element indicates the IMS-ALG signalling address to which the IMS-AGW should preferably attempt to re-register.

8.9 IMS-AGW Restoration p. 208

This procedure is used to indicate the IMS-AGW has recovered from a failure.

Table 8.9.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Restoration

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Restoration	IMS-AGW	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		Method	M	This information element indicates the method for service change.
IMS-AGW Restoration Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
		Root Termination	M	This information element indicates the root termination where the command was executed.
		IMS-ALG Address	O	This information element indicates the IMS-ALG signalling address to which the IMS-AGW should preferably attempt to re-register.

8.10 IMS-AGW Register p. 209

This procedure is used to register the IMS-AGW after a cold/warm boot.

Table 8.10.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Register

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Register	IMS-AGW	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		Method	M	This information element indicates the method for service change.
		Protocol Version	M	This information element indicates the protocol version for Iq interface requested by the IMS-AGW.
		Service Change Profile	M	This information element indicates the profile for the Iq interface requested by the IMS-AGW.
IMS-AGW Register Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
		Root Termination	M	This information element indicates the root termination where the command was executed.
		Protocol Version	O	This information element indicates the protocol version for Iq interface supported by the IMS-ALG.
		Service Change Profile	O	This information element indicates the profile for the Iq interface supported by the IMS-ALG.
		IMS-ALG Address	O	This information element indicates the IMS-ALG signalling address to which the IMS-AGW should preferably attempt to re-register.

8.11 IMS-ALG Restoration p. 209

This procedure is used to indicate the IMS-ALG has recovered from a failure.

Table 8.11.1: Procedures between IMS-ALG and IMS-AGW: IMS-ALG Restoration

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-ALG Restoration	IMS-ALG	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		Method	M	This information element indicates the method for service change.
IMS-ALG Restoration Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
IMS-ALG Restoration Ack	IMS-AGW	Root Termination	M	This information element indicates the root termination where the command was executed.

8.12 IMS-AGW Re-register p. 210

This procedure is used to re-register the IMS-AGW (having been requested to do so by the IMS-ALG).

Table 8.12.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Re-register

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Re-register	IMS-AGW	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		Method	M	This information element indicates the method for service change.
		Protocol Version	M	This information element indicates the protocol version for Iq interface requested by the IMS-AGW.
		Service Change Profile	M	This information element indicates the profile for the Iq interface requested by the IMS-AGW.
IMS-AGW Re-register Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
		Root Termination	M	This information element indicates the root termination where the command was executed.
		Protocol Version	O	This information element indicates the protocol version for Iq interface supported by the IMS-ALG.
		Service Change Profile	O	This information element indicates the profile for the Iq interface supported by the IMS-ALG.
		IMS-ALG Address	O	This information element indicates the IMS-ALG signalling address to which the IMS-AGW should preferably attempt to re-register.

8.13 IMS-ALG Ordered Re-registration p. 210

This procedure is used by the IMS-ALG to request the IMS-AGW to re-register.

Table 8.13.1: Procedures between IMS-ALG and IMS-AGW: IMS-ALG Ordered Re-register

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-ALG Ordered Re-register	IMS-ALG	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		IMS-ALG Address	O	This information element indicates the IMS-ALG signalling address.
IMS-ALG Ordered Re-register Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
IMS-ALG Ordered Re-register Ack	IMS-AGW	Root Termination	M	This information element indicates the root termination where the command was executed.

8.14 Audit Value p. 211

This procedure is used to audit values of different object(s).

Table 8.14.1: Procedures between IMS-ALG and IMS-AGW: Audit Value

Procedure	Initiated	Information element name	Information element required	Information element description
Audit Value	IMS-ALG	Context	M	This information element indicates the context for the command.
		Bearer Termination	M	This information element indicates the bearer termination(s) for the command.
		Object(s)	M	This information element indicates the object(s) to be audited.
Audit Value Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
		Bearer Termination	M	This information element indicates the bearer termination where the command was executed.
		Value(s)	M	This information element indicates the value(s) of the object(s).

8.15 Audit Capability p. 211

This procedure is used to audit capabilities of different object(s).

Table 8.15.1: Procedures between IMS-ALG and IMS-AGW: Audit Capability

Procedure	Initiated	Information element name	Information element required	Information element description
Audit Capability	IMS-ALG	Context	M	This information element indicates the context for the command.
		Bearer Termination	M	This information element indicates the bearer termination(s) for the command.
		Object(s)	M	This information element indicates the object(s) which capability is requested.
Audit Capability Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
		Bearer Termination	M	This information element indicates the bearer termination where the command was executed.
		Capabilities(s)	M	This information element indicates the capabilities of the object(s).

8.16 Capability Update p. 212

This procedure is used to indicate update of an object capability.

Table 8.16.1: Procedures between IMS-ALG and IMS-AGW: Capability Update

Procedure	Initiated	Information element name	Information element required	Information element description
Capability Update	IMS-AGW	Context	M	This information element indicates the context for the command.
		Bearer Termination	M	This information element indicates the bearer termination(s) for the command.
		Reason	M	This information element indicates the reason for service change.
		Method	M	This information element indicates the method for service change.
Capability Update Ack	IMS-ALG	Context	M	This information element indicates the context where the command was executed.
Capability Update Ack	IMS-ALG	Bearer Termination	M	This information element indicates the bearer termination where the command was executed.

8.17 IMS-ALG Out of Service p. 212

This procedure is used to indicate that IMS-ALG has gone out of service.

Table 8.17.1: Procedures between IMS-ALG and IMS-AGW: IMS-ALG Out of Service

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-ALG Out of Service	IMS-ALG	Context	M	This information element indicates the context for the command.
		Root Termination	M	This information element indicates the root termination for the command.
		Reason	M	This information element indicates the reason for the service change.
		Method	M	This information element indicates the method for service change.
IMS-ALG Out of Service Ack	IMS-AGW	Context	M	This information element indicates the context where the command was executed.
IMS-ALG Out of Service Ack	IMS-AGW	Root Termination	M	This information element indicates the root termination where the command was executed.

8.18 IMS-AGW Resource Congestion Handling - Activate p. 213

This procedure is used to activate the congestion handling mechanism.

Table 8.18.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Resource Congestion Handling - Activate

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Resource Congestion Handling - Activate	IMS-ALG	Context	M	This information element indicates that all context are applicable for the root termination.
		Root Termination	M	This information element indicates that root termination is where the congestion mechanism is activated.
		Congestion Activate	M	This information element requests to activate the congestion mechanism.
IMS-AGW Resource Congestion Handling - Activate Ack	IMS-AGW	Context	M	This information element indicates that all context are where the command was executed.
IMS-AGW Resource Congestion Handling - Activate Ack	IMS-AGW	Root Termination	M	This information element indicates that root termination is where the command was executed.

8.19 IMS-AGW Resource Congestion Handling - Indication p. 213

This procedure is used to inform the IMS-ALG that traffic restriction is advised.

Table 8.19.1: Procedures between IMS-ALG and IMS-AGW: IMS-AGW Resource Congestion Handling - Indication

Procedure	Initiated	Information element name	Information element required	Information element description
IMS-AGW Resource Congestion Handling - Indication	IMS-AGW	Context	M	This information element indicates all context are applicable for the root termination.
		Root Termination	M	This information element indicates that root termination is where the congestion mechanism was activated.
		Reduction	M	This information element indicates the load percentage to be reduced.
IMS-AGW Resource Congestion Handling - Indication Ack	IMS-ALG	Context	M	This information element indicates all context are where the command was executed.
IMS-AGW Resource Congestion Handling - Indication Ack	IMS-ALG	Root Termination	M	This information element indicates that root termination is where the command was executed.

8.20 Inactivity Timeout Activate p. 214

This procedure is used to activate the inactivity timeout mechanism.

Table 8.20.1: Procedures between IMS-ALG and IMS-AGW: Inactivity Timeout Activate

Procedure	Initiated	Information element name	Information element required	Information element description
Inactivity Timeout Activate	IMS-ALG	Context	M	This information element indicates all context are applicable for the root termination.
		Root Termination	M	This information element indicates that root termination is where inactivity timeout mechanism was activated.
		Inactivity Timeout Activate	M	This information element activates the Inactivity Timeout request.
		Inactivity Timeout	O	This information element indicates the maximum length of time before triggering the related notification.
Inactivity Timeout Activate Ack	IMS-AGW	Context	M	This information element indicates all context are where the command was executed.
Inactivity Timeout Activate Ack	IMS-AGW	Root Termination	M	This information element indicates that root termination is where the command was executed.

8.21 Inactivity Timeout Notification p. 214

This command is used to notify the IMS-ALG of an inactive control association.

Table 8.21.1: Procedures between IMS-AGW and IMS-ALG: Inactivity Timeout Notification

Procedure	Initiated	Information element name	Information element required	Information element description
Inactivity Timeout Notification	IMS-AGW	Context	M	This information element indicates all context are applicable for the root termination.
		Root Termination	M	This information element indicates that root termination is where the inactivity timeout mechanism was activated.
		Inactivity Timeout Notification	M	This information element notifies the IMS-ALG of an inactivity time period.
Inactivity Timeout Notifcation Ack	IMS-ALG	Context	M	This information element indicates all context are where the command was executed.
Inactivity Timeout Notifcation Ack	IMS-ALG	Root Termination	M	This information element indicates that root termination is where the command was executed.

8.22 Command Reject p. 215

This command is used to reject the received command request. It may be used as response to any of the procedures.

Table 8.22.1: Procedures between IMS-ALG and IMS-AGW: Command Reject

Procedure	Initiated	Information element name	Information element required	Information element description
Command Reject	Both	Context	O	This information element indicates the context where the command was rejected.
		Bearer Termination	O	This information element indicates the bearer termination where the command was rejected.
		Error	M	This information element indicates the error that caused command rejection.