Content for TS 23.433 Word version: 19.0.0

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9.2.3 Information flows 9.2.3.1 SEALDD enabled regular transmission request 9.2.3.2 SEALDD enabled regular transmission response 9.2.3.3 SEALDD regular transmission connection establishment request 9.2.3.4 SEALDD regular transmission connection establishment response 9.2.3.5 SEALDD regular data transmission connection release request 9.2.3.6 SEALDD regular data transmission connection release response 9.2.3.7 SEALDD connection status subscription request 9.2.3.8 SEALDD connection status subscription response 9.2.3.9 SEALDD connection status notification 9.2.3.10 SEALDD client connection status reporting configuration request 9.2.3.11 SEALDD client connection status reporting configuration response 9.2.3.12 SEALDD client connection status reporting notification
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9.2.3 Information flows p. 31

9.2.3.1 SEALDD enabled regular transmission request p. 31

Table 9.2.3.1-1 describes the information flow from the VAL server to the SEALDD server for requesting the regular application transmission service.

Table 9.2.3.1-1: SEALDD enabled Regular transmission request

Information element	Status	Description
VAL server ID	M	Identity of the VAL server
VAL service ID	O	Identity of the VAL service
UE identity	O	Identifier of specific UE, e.g. UE ID
SEALDD-S Data transmission connection information	M	Address/port and/or URL of the VAL server to receive the application packets from the SEALDD server
QoS information	O	QoS information provided by VAL server
VAL server's total bandwidth limit	O (See NOTE)	The total bandwidth limit of VAL server, including UL/DL
VAL users' bandwidth limit	O (See NOTE)	The bandwidth limits (i.e. minimum bandwidth requirement and maximum bandwidth limit) for VAL users, including UL/DL
NOTE: These IEs are used for the SEALDD enabled bandwidth control for different VAL users.

9.2.3.2 SEALDD enabled regular transmission response p. 31

Table 9.2.3.2-1 describes the information flow from the SEALDD server to the VAL server for responding to the regular application transmission.

Table 9.2.3.2-1: SEALDD enabled regular transmission response

Information element	Status	Description
Result	M	Success or failure.
SEALDD-S information Data transmission connection information	O	Address/port and/or URL of the SEALDD server to receive the packets from the VAL server for application traffic transfer
Cause	O (See NOTE)	Indicates the reason for the failure, e.g. SEALDD policy mismatch.
NOTE: The IE is only present if the Result is failure.

9.2.3.3 SEALDD regular transmission connection establishment request p. 31

Table 9.2.3.3-1 describes the information flow from the SEALDD client to the SEALDD server or from the SEALDD server to the SEALDD client for requesting the regular SEALDD connection establishment.

Table 9.2.3.3-1: SEALDD regular transmission connection establishment request

Information element	Status	Description
Requestor ID	M	Identity of the requestor (SEALDD client or SEALDD server).
SEALDD flow ID	M (See NOTE 1)	Identity of the SEALDD flow.
VAL server ID	O	Identity of the VAL server, applicable for SEALDD client side initiated request.
VAL service ID	O	Identity of the VAL service
Selected VAL server endpoint	M	Endpoint of the selected VAL server
SEALDD traffic descriptor	O	SEALDD traffic descriptor (e.g. address, port, URL, transport layer protocol) of the SEALDD client side (for client side initiated request) or the SEALDD server side (for server side initiated request) used to establish SEALDD connection.
VAL UE/user identity	O	The VAL user ID of the VAL user or VAL UE ID.
SEALDD communication lifetime	O	Identifies the DD communication lifetime, applicable for SEALDD server side initiated request.
Capability for BAT and periodicity adaptation	O (See NOTE 2)	Indicates BAT and periodicity adaptation capability for SEALDD client in client side initiated request.
Transmission assistance info	O (See NOTE 2)	Indicates transmission assistance information for uplink SEALDD traffic in client side initiated request. It includes BAT, BAT window, periodicity, and periodicity range.
L4S feedback capability	O (See NOTE 3)	Identifies the L4S feedback capability (i.e. ECN identification, L4S feedback) for client side initiated request.
NOTE 1: The SEALDD flow ID is used by the SEALDD client and SEALDD server to identify different application traffic, and it is mapped to the identifiers of the application traffic and data transmission session. NOTE 2: Only one of these IEs may be present in the message. NOTE 3: This IE is used for the SEALDD enabled congestion control for VAL applications, as specified in clause 9.8.2.2.

9.2.3.4 SEALDD regular transmission connection establishment response p. 32

Table 9.2.3.4-1 describes the information flow from the SEALDD server to the SEALDD client or from the SEALDD client to the SEALDD server for responding to the regular SEALDD connection establishment.

Table 9.2.3.4-1: SEALDD regular transmission connection establishment response

Information element	Status	Description
Result	M	Indicates the success or failure of establishing the SEALDD connection.
SEALDD traffic descriptor	O	SEALDD traffic descriptor (e.g. address, port, URL, transport layer protocol) of the SEALDD server side (for client side initiated request) or the SEALDD client side (for server side initiated request) used to establish SEALDD connection.
Pending timer	O (See NOTE 1)	The pending timer to trigger the re-connection from SEALDD client when bandwidth limit check is failed.
Suggested traffic transmission bandwidth	O (See NOTE 1)	The suggested traffic transmission bandwidth used by SEALDD client or SEALDD server to perform bandwidth control for VAL users, including UL/DL.
Cause	O (See NOTE 2)	Indicates the reason for the failure, e.g. SEALDD policy mismatch.
Capability for BAT and periodicity adaptation	O (See NOTE 3)	Indicates BAT and periodicity adaptation capability for SEALDD client in server side initiated request.
NOTE 1: These IEs are used for the SEALDD enabled bandwidth control for different VAL users, applicable for client side initiated request. NOTE 2: This IE is only present if the Result is failure. NOTE 3: Only one of these IEs may be present in the message.

9.2.3.5 SEALDD regular data transmission connection release request p. 33

Table 9.2.3.5-1 describes the information flow from the SEALDD client to the SEALDD server or from the SEALDD server to the SEALDD client for requesting the SEALDD connection release.

Table 9.2.3.5-1: SEALDD regular data transmission connection release request

Information element	Status	Description
Requestor ID	M	Identity of the requestor (SEALDD client or SEALDD server).
SEALDD flow ID	M	Identifies the SEALDD flow.

9.2.3.6 SEALDD regular data transmission connection release response p. 33

Table 9.2.3.6-1 describes the information flow from the SEALDD server to the SEALDD client or from the SEALDD client to the SEALDD server for responding the SEALDD connection release request.

Table 9.2.3.6-1: SEALDD regular data transmission connection release response

Information element	Status	Description
Result	M	Result of the operation.

9.2.3.7 SEALDD connection status subscription request p. 33

Table 9.2.3.7-1 describes the information flow from the VAL server to SEALDD server to subscribe to SEALDD connection status information.

Table 9.2.3.7-1: SEALDD connection status subscription request

Information element	Status	Description
VAL server ID	M	Identity of the VAL server.
Event ID list	M	Identifies a list of events such as establishment, release, congestion report.
VAL service ID	O	Identity of the VAL service.
Identity	O	Identifier of VAL UE or VAL user.
SEALDD-S Data transmission connection information	M	Address/port of the VAL server to send/receive the application packets to/from the SEALDD server.
Immediate reporting flag	O	Indicates the immediate reporting of connection status notification.
SEALDD client connection status check periodicity	O	Indicates the frequency to perform SEALDD client connection status check.

9.2.3.8 SEALDD connection status subscription response p. 34

Table 9.2.3.8-1 describes the information flow from the SEALDD server to VAL server for responding SEALDD connection status subscription request.

Table 9.2.3.8-1: SEALDD connection status subscription response

Information element	Status	Description
Result	M	Success or failure.
> Reporting ID	O	Indicates the reporting ID of the connection status per VAL UE.

9.2.3.9 SEALDD connection status notification p. 34

Table 9.2.3.9-1 describes the information flow from the SEALDD server to the VAL server to notify SEALDD connection status.

Table 9.2.3.9-1: SEALDD connection status notification

Information element	Status	Description
Event ID	M	Identifies event such as establishment, release, congestion report.
Identity	M	Identifier of VAL UE or VAL user.
VAL service ID	M	Identity of the VAL service.
SEALDD connection establishment data	O	Data related to SEALDD connection establishment.
> SEALDD-S Data transmission connection information	M	Address/port of the SEALDD server to send/receive the application packets to/from the VAL server.
> SEALDD communication lifetime	O	Identifies the DD communication lifetime.
Congestion level	O (See NOTE)	The congestion level of the VAL service.
Reporting ID	M	Indicates the reporting ID of the connection status.
SEALDD client connection status	M	Indicates the connection status of VAL UE. e.g. reachable, unreachable, sleeping.
NOTE: This IE is used for the congestion report event.

9.2.3.10 SEALDD client connection status reporting configuration request |R19| p. 34

Table 9.2.3.10-1 describes the information flow from the SEALDD server to SEALDD client to configure the SEALDD client for connection status reporting.

Table 9.2.3.10-1: SEALDD client connection status reporting configuration request

Information element	Status	Description
Flow ID	M	Indicates the flow ID of the application for which the reporting is required.
Mode of reporting	O	Indicates the mode of reporting. e.g. regular or irregular.
> Reporting interval	O (See NOTE)	Indicates the reporting interval to report the notification.
SEALDD client connection status reporting priority	O	Indicates the priority of SEALDD client connection status for the requested flow ID.
NOTE: This IE is only present if the mode of reporting is regular.

9.2.3.11 SEALDD client connection status reporting configuration response |R19| p. 35

Table 9.2.3.11-1 describes the information flow from the SEALDD client to the SEALD server for sending the the SEALDD client connection status reporting configuration response.

Table 9.2.3.11-1: SEALDD client connection status reporting configuration response

Information element	Status	Description
Result	M	Success or failure.

9.2.3.12 SEALDD client connection status reporting notification |R19| p. 35

Table 9.2.3.12-1 describes the information flow from the SEALDD client to the SEALD server for sending the the SEALDD client connection status reporting configuration response.

Table 9.2.3.12-1: SEALDD client connection status reporting notification

Information element	Status	Description
SEALDD client connection status	M	Indicates the status of VAL UEs like reachable, unreachable, or sleeping.