Content for TS 23.434 Word version: 19.4.2
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10.3 Procedures and information flows for group management
10.3.1 General
10.3.2 Information flows for group management
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10.3 Procedures and information flows for group management p. 138
10.3.1 General p. 138
Group management procedures apply to on-network VAL service only.
Group creation provides a dedicated VAL group to individual VAL users to enable the required communication for one or multiple VAL services. This includes the normal group creation by administrators or by authorized user/UE. The group management server supports the external group identifier within the VAL group document to enable the SEAL servers to consume the NEF services for the member UEs of the VAL group.
10.3.2 Information flows for group management p. 139
10.3.2.1 Group creation request p. 139
Table 10.3.2.1-1 describes the information flow group creation request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| Identity list | M | List of VAL user IDs or VAL UE IDs that are part of the group to be created corresponding to the list of the configured services |
| VAL service ID list
(see NOTE 1) | O | List of VAL services whose service communications are to be enabled on the group |
| VAL service specific information
(see NOTE 2) | O | Placeholder for VAL service specific information |
|
NOTE 1:
This information element shall be included in the message for creating a group configured for multiple VAL services.
NOTE 2:
The details of this information element are specified in VAL service specific specification and are out of scope of the present document.
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10.3.2.2 Group creation response p. 139
Table 10.3.2.2-1 describes the information flow group creation response from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M
(see NOTE) | VAL group ID of the group |
| Result | M | Indicates the success or failure for the operation |
|
NOTE:
If the Result information element indicates failure then the value of VAL group ID information element has no meaning.
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10.3.2.3 Group creation notification p. 139
Table 10.3.2.3-1 describes the information flow group creation notification from the group management server to the VAL server(s) and the group management clients.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID that was created based on the VAL user ID list and the VAL services enabled on them |
| Identity list | M | List of VAL user IDs or VAL UE IDs that are part of the created group |
| VAL service specific information
(see NOTE) | O | Placeholder for VAL service specific information |
|
NOTE:
The details of this information element are specified in VAL service specific specification and are out of scope of the present document.
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10.3.2.4 Group information query request p. 140
Table 10.3.2.4-1 describes the information group information query request from group management client or VAL server to group management server.
| Information Element | Status | Description |
|---|---|---|
| Identity | M | The identity of the VAL server, VAL user or VAL UE performing the query. |
| VAL group ID | M | The identity of the VAL group to be queried |
| Query type | M | It indicates the query type, i.e., membership information |
10.3.2.5 Group information query response p. 140
Table 10.3.2.5-1 describes the information flow group information query response from group management server to group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M
(see NOTE) | The identity of the VAL group to be queried |
| Query type | M
(see NOTE) | It indicates the query type, e.g. membership information |
| Query result | M
(see NOTE) | The group information retrieved from the group management server based on the query type, i.e., a list of group members |
| Result | M | Indicates the success or failure for the operation |
|
NOTE:
If the Result information element indicates failure then the values of other information elements have no meaning.
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10.3.2.6 Group membership update request p. 140
Table 10.3.2.6-1 describes the information flow group membership update request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| VAL group ID | M | Identity of the VAL group |
| Identity | M | List of identities of the VAL users and VAL UEs affected by this operation |
| Operations | M | Add to or delete from the group |
| VAL service specific information
(see NOTE) | O | Placeholder for VAL service specific information |
|
NOTE:
The details of this information element are specified in VAL service specific specification and are out of scope of the present document.
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10.3.2.7 Group membership update response p. 140
Table 10.3.2.7-1 describes the information flow group membership update response from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group |
| Result | M | Indicates the success or failure for the operation |
10.3.2.8 Group membership notification p. 141
Table 10.3.2.8-1 describes the information flow group membership notification from the group management server to the VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group |
| Identity | M | List of identities of the VAL users and VAL UEs affected by this operation |
| Operations | M | Add to or delete from the group |
| VAL service specific information
(see NOTE) | O | Placeholder for VAL service specific information |
|
NOTE:
The details of this information element are specified in VAL service specific specification and are out of scope of the present document.
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Table 10.3.2.8-2 describes the information flow group membership notification from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group |
| Operations | M | Add to or delete from the group |
10.3.2.9 Group deletion request p. 141
Table 10.3.2.9-1 describes the information flow group deletion request from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client performing the request. |
| VAL group ID | M | VAL group ID of the group to delete. |
| Reason | O | The reason of group deletion. |
10.3.2.10 Group deletion response p. 141
Table 10.3.2.10-1 describes the information flow group deletion response from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group requested to be deleted |
| Result | M | Indicates success (group no longer exists), or failure (group deletion did not occur, e.g. authorization failure) |
10.3.2.11 Group deletion notification p. 142
Table 10.3.2.11-1 describes the information flow group deletion notification from the group management server to the VAL server, and from the group management server to the group management clients for VAL users which are members of the group.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID has been deleted. |
| Reason | O | The reason of group deletion. |
10.3.2.12 Group information request p. 142
Table 10.3.2.12-1 describes the information flow group information request from the group management server in the partner VAL system of the VAL group to the group management server in the primary VAL system of the VAL group.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management server performing the request |
| VAL group ID | M | VAL group ID of the group |
10.3.2.13 Group information response p. 142
Table 10.3.2.13-1 describes the information flow group information response from the group management server in the primary VAL system of the VAL group to the group management server in the partner VAL system of the VAL group.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| VAL group configuration information | O
(see NOTE 1) | Configuration information for the VAL group |
| Failure reason | O
(see NOTE 2) | Indicates reason for failure to provide VAL group configuration information |
|
NOTE 1:
Shall be present if the request can be fulfilled by the group management server in the primary VAL system of the VAL group.
NOTE 2:
Shall be present if the request cannot be fulfilled by the group management server in the primary VAL system of the VAL group.
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10.3.2.14 Group information subscribe request p. 142
Table 10.3.2.14-1 describes the information flow group information subscribe request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| Minimum time between consecutive notifications | O | Defaults to 0 if not provided, otherwise indicates the minimum time interval between consecutive notifications. |
10.3.2.15 Group information subscribe response p. 143
Table 10.3.2.15-1 describes the information flow group information subscribe response from the group management server to the group management client or the VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| Result | M | Indicates success or failure of the subscribe request |
10.3.2.16 Group information notify request p. 143
Table 10.3.2.16-1 describes the information flow group information notify request from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management server performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| VAL group information | M | Group information for the VAL group. |
10.3.2.17 Group information notify response p. 143
Table 10.3.2.17-1 describes the information flow group information notify response from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| Result | M | Indicates success or failure of the notification request |
10.3.2.18 Store group configuration request p. 143
Table 10.3.2.18-1 describes the information flow store group configuration request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| VAL group configuration data | M | VAL group configuration data. |
10.3.2.19 Store group configuration response p. 143
Table 10.3.2.19-1 describes the information flow store group configuration response from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| Result | M | Indicates the success or failure for the result |
10.3.2.20 Get group configuration request p. 144
Table 10.3.2.20-1 describes the information flow get group configuration request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| VAL group information reference | M | Reference to configuration data for the VAL group. |
| VAL services requested (see NOTE) | O | Service(s) for which group configuration is requested. |
|
NOTE:
If 'VAL services requested' is not present, group configuration is requested for all services defined for the VAL group
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10.3.2.21 Get group configuration response p. 144
Table 10.3.2.21-1 describes the information flow get configuration response from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| VAL group configuration data | M
(see NOTE) | VAL group configuration data |
| Result | M | Indicates the success or failure for the operation |
|
NOTE:
If the Result information element indicates failure then the value of the VAL group configuration data information element has no meaning.
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10.3.2.22 Subscribe group configuration request p. 144
Table 10.3.2.22-1 describes the information flow subscribe group configuration request from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| VAL services requested (see NOTE) | O | Service(s) for which group configuration is requested. |
| Notification target URI | M | Target URI where the group management client performing the request will receive the notifications. |
| Minimum time between consecutive notifications | O | Defaults to 0 if not provided, otherwise indicates the minimum time interval between consecutive notifications. |
|
NOTE:
If 'VAL services requested' is not present, group configuration is requested for all services defined for the VAL group
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10.3.2.23 Subscribe group configuration response p. 145
Table 10.3.2.23-1 describes the information flow subscribe group configuration response from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| Result | M | Indicates the success or failure for the result |
10.3.2.24 Notify group configuration request p. 145
Table 10.3.2.24-1 describes the information flow notify group configuration request from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management server performing the request |
| VAL group ID | M | VAL group ID of the group |
| VAL group information reference (see NOTE) | O | Reference to information stored relating to the VAL group |
| Group related key material (see NOTE) | O | Key material for use with the VAL group |
|
NOTE:
At least one of these information elements shall be present.
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10.3.2.25 Notify group configuration response p. 145
Table 10.3.2.25-1 describes the information flow notify group configuration response from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the group |
| Result | M | Indicates the success or failure for the result |
10.3.2.26 Configure VAL group request p. 145
Table 10.3.2.26-1 describes the information flow for configure VAL group request from a VAL server to a group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the VAL server performing the request |
| VAL group ID | M | The group ID used for the VAL group |
| VAL group description (see NOTE 2) | M | Information related to the VAL group e.g. group definition including communication type, policy, group size, group leader. |
| VAL service ID list (see NOTE 1) | O | List of VAL services whose service communications are to be enabled on the group |
| Geo ID list (see NOTE 1) | O | List of geographical areas to be addressed by the group |
| Identity list (see NOTE 1) | O | List of VAL UE IDs who are invited to be member of the group |
| Identity list subscription | O | Indicates interest to receive notifications of newly registered or de-registered VAL UE IDs |
|
NOTE 1:
At least one of these IEs shall be present.
NOTE 2:
Group communication type may indicate 5G LAN-Type communication using either Ethernet or IP (IPv4 and/or IPv6) transport.
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10.3.2.27 Configure VAL group response p. 146
Table 10.3.2.27-1 describes the information flow for configure VAL group response from group management server to a VAL server.
| Information Element | Status | Description |
|---|---|---|
| Result | M | The result of the configure VAL group operation |
| Subscription result | O
(see NOTE) | Indicates whether subscription to receive notifications of newly registered or de-registered VAL UE IDs is successful or not |
|
NOTE:
Shall be present only if there is a subscription in the configure VAL group request and successful.
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10.3.2.28 Group announcement p. 146
Table 10.3.2.28-1 describes the information flow for a group management server to announce a VAL group to the group management clients.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | The group ID used for the VAL group |
| VAL group description (see NOTE 3) | M | Information related to the VAL group e.g. group definition including communication type and connection parameters, policy, group size, group leader. |
| VAL service ID list (see NOTE 1) | O | List of VAL services whose service communications are to be enabled on the group |
| Geo ID list (see NOTE 1) | O | List of geographical areas to be addressed by the group. |
| Identity list (see NOTE 1, NOTE 2) | O | List of VAL UE IDs who are invited to be member of the group. |
|
NOTE 1:
At least one of these IEs shall be present.
NOTE 2:
This element is not present if it results in privacy concerns.
NOTE 3:
Group communication type may indicate 5G LAN-Type communication using either Ethernet or IP (IPv4 and/or IPv6) transport. Group connection parameters may include DNN and S-NSSAI.
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10.3.2.29 Group registration request p. 147
Table 10.3.2.29-1 describes the information flow for a group management client to register to a VAL group in response to a group announcement from the group management server. Message filters for throttling messages and notifications is included in this request e.g. for limiting message exchange on a constrained UE, for receiving only improtant group communication.
| Information Element | Status | Description |
|---|---|---|
| VAL UE ID | M | Identity of the VAL UE registering to the VAL group |
| VAL Group ID | M | The group ID to be registered by the VAL UE for the VAL group |
| Identity list subscription | M | Indicates interest to receive notifications of newly registered or de-registered VAL UE IDs |
| Message filters | O | Group message communication will be sent to the VAL UE after applying message filters as described in Table 10.3.2.29-2. |
| Information Element | Status | Description |
|---|---|---|
| Identities | O | List of VAL UE identities whose messages will be send to the VAL UE being registered |
| Max number of messages (see NOTE 1) | O | Total number of messages allowed to be sent to the VAL UE in a given time frame as defined by the VAL service. |
| Time frame | O | Time frame associated to Max number of messages IE |
| Message Types (see NOTE 2) | O | List of message types which will be sent to the VAL UE being registered (e.g. high priority messages, or group configuration messages, etc.). |
|
NOTE 1:
Specifying value for max number of messages is outside the scope of SEAL and up to the implementation of a particular Vertical requirement.
NOTE 2:
Message types are as decided by the specific Vertical.
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10.3.2.30 Group registration response p. 147
Table 10.3.2.30-1 describes the information flow for a group management server to respond for a group registration request from the group management client.
| Information Element | Status | Description |
|---|---|---|
| Result | M | Result from the VAL server in response to VAL group registration request indicating success or failure |
| Subscription result | M | Indicates whether subscription to receive notifications of newly registered or de-registered VAL UE IDs is successful or not |
10.3.2.31 Identity list notification p. 147
Table 10.3.2.31-1 describes the information flow identity list notification from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group |
| Identity list | M | List of VAL UE IDs who are newly registered or de-registered members of the group |
Table 10.3.2.31-2 describes the information flow identity list notification from the group management server to the VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | Identity of the VAL group |
| Identity list | M | List of VAL UE IDs who are newly registered or de-registered members of the group |
| Message filters list | O | List of Message filters per VAL UE ID who are newly registered. |
10.3.2.32 Group de-registration request p. 148
Table 10.3.2.32-1 describes the information flow for a group management client to de-register to a VAL group.
| Information Element | Status | Description |
|---|---|---|
| VAL UE ID | M | Identity of the VAL UE de-registering to the VAL group |
| VAL Group ID | M | The group ID to be de-registered by the VAL UE for the VAL group |
10.3.2.33 Group de-registration response p. 148
Table 10.3.2.33-1 describes the information flow for a group management server to respond for a group de-registration request from the group management client.
| Information Element | Status | Description |
|---|---|---|
| Result | M | Result from the group management server in response to VAL group de-registration request indicating success or failure |
10.3.2.34 Location-based group creation request p. 148
Table 10.3.2.34-1 describes the information flow location-based group creation request from the group management client or VAL server to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client or VAL server performing the request. |
| Location criteria | M | Criteria to combine Users or UEs in a location (e.g. geographical area or VAL service area ID). |
| VAL service ID list (see NOTE 1) | O | List of VAL services whose service communications are to be enabled on the group. |
| VAL service specific information (see NOTE 2) | O | Placeholder for VAL service specific information. |
|
NOTE 1:
This information element shall be included in the message for creating a group configured for multiple VAL services.
NOTE 2:
The details of this information element are specified in VAL service specific specification and are out of scope of the present document.
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10.3.2.35 Location-based group creation response p. 149
Table 10.3.2.35-1 describes the information flow location-based group creation response from the group management server to the group management client or VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M
(see NOTE) | VAL group ID of the group |
| Result | M | Indicates the success or failure for the operation |
|
NOTE:
If the Result information element indicates failure then the value of VAL group ID information element has no meaning.
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10.3.2.36 Group list fetch request p. 149
Table 10.3.2.36-1 describes the information flow for Group list fetch request from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| Identity | M | The identity of the VAL UE or VAL User performing the operation. |
| Period | O | Indicates to the group management server to provide list of the groups created between specified period. |
10.3.2.37 Group list fetch response p. 149
Table 10.3.2.37-1 describes the information flow for Group list fetch response from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| Result | M | Result from the group management server in response to group list fetch request indicating success or failure |
| VAL group IDs | M | The list of VAL groups for which the VAL User is a member |
10.3.2.38 Temporary group formation request |R17| p. 150
Table 10.3.2.38-1 describes the information flow for the temporary group formation request from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID list | M | List of VAL group IDs to be combined |
| VAL service list (see NOTE) | O | A subset of the common VAL service(s) to be applied for the temporary group |
|
NOTE:
If this information element is not present, all the VAL service(s) that are common to the groups being combined will be applicable for the temporary group.
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10.3.2.39 Temporary group formation response |R17| p. 150
Table 10.3.2.39-1 describes the information flow for the temporary group formation response from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | O
(see NOTE) | VAL group ID of the temporary group |
| VAL service list | O | List of VAL services whose service communications are to be enabled on this temporary group |
| Result | M | Indicates the success or failure of temporary group formation. |
|
NOTE:
Shall be present if the Result information element indicates that the temporary group formation operation is successful. Otherwise VAL group ID shall not be present.
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10.3.2.40 Temporary group formation notify |R17| p. 150
Table 10.3.2.40-1 describes the information flow temporary group formation notify from the group management server to the VAL server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID list | M | List of constituent VAL group IDs |
| VAL group ID | M | VAL group ID of the temporary group |
| VAL service list | O | List of VAL services whose service communications are to be enabled on this temporary group. |
10.3.2.41 Temporary group formation notification |R17| p. 150
Table 10.3.2.41-1 describes the information flow temporary group formation notification from the group management server to the group management client.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID list | M | List of constituent VAL group IDs |
| VAL group ID | M | VAL group ID of the temporary group |
10.3.2.42 Temporary group formation notification response |R17| p. 151
Table 10.3.2.42-1 describes the information flow temporary group formation notification response from the group management client to the group management server.
| Information Element | Status | Description |
|---|---|---|
| VAL group ID | M | VAL group ID of the temporary group |
10.3.2.43 Unsubscribe group configuration request |R17| p. 151
Table 10.3.2.43-1 describes the information flow from a group management client to a group management server for unsubscribe group configuration request.
| Information element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client performing the request. |
| VAL group ID | M | VAL group ID of the group. |
10.3.2.44 Unsubscribe group configuration response |R17| p. 151
Table 10.3.2.44-1 describes the information flow from a group management server to a group management client for unsubscribe group configuration response.
| Information element | Status | Description |
|---|---|---|
| Result | M | Indicates the success or failure of the unsubscribe operation. |
10.3.2.45 Group configuration subscription update request |R17| p. 151
Table 10.3.2.45-1 describes the information flow from the group management client to the group management server for group configuration subscription update request.
| Information element | Status | Description |
|---|---|---|
| Requester Identity | M | The identity of the group management client performing the request. |
| VAL group ID | M | VAL group ID of the group. |
| VAL services requested
(see NOTE) | O | Service(s) for which group configuration is requested. |
| Notification target URI | O | Target URI where the group management client performing the request will receive the notifications. |
| Minimum time between consecutive notifications | O | Defaults to 0 if not provided, otherwise indicates the minimum time interval between consecutive notifications. |
|
NOTE:
If 'VAL services requested' is not present, group configuration is requested for all services defined for the VAL group.
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10.3.2.46 Group configuration subscription update response |R17| p. 151
Table 10.3.2.46-1 describes the information flow from the group management server to the group management client for group configuration subscription update response.
| Information element | Status | Description |
|---|---|---|
| Result | M | Indicates the success or failure of the operation. |
