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Content for  TS 23.434  Word version:  18.0.0

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10.3  Procedures and information flows for group managementWord‑p. 71

10.3.1  GeneralWord‑p. 71

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.
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10.3.2  Information flows for group managementWord‑p. 72

10.3.2.1  Group creation requestWord‑p. 72

Table 10.3.2.1-1 describes the information flow group creation request from the group management client to the group management server.
Information Element Status Description
Requester IdentityMThe identity of the group management client performing the request
Identity listMList 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)
OList of VAL services whose service communications are to be enabled on the group
VAL service specific information
(see NOTE 2)
OPlaceholder 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 responseWord‑p. 72

Table 10.3.2.2-1 describes the information flow group creation response from the group management server to the group management client.
Information Element Status Description
VAL group IDM
(see NOTE)
VAL group ID of the group
ResultMIndicates 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 notificationWord‑p. 72

Table 10.3.2.3-1 describes the information flow group creation notification from the group management server to the VAL server(s).
Information Element Status Description
VAL group IDMVAL group ID that was created based on the VAL user ID list and the VAL services enabled on them
Identity listMList of VAL user IDs or VAL UE IDs that are part of the created group
VAL service specific information
(see NOTE)
OPlaceholder 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 requestWord‑p. 73

Table 10.3.2.4-1 describes the information group information query request from group management client to group management server.
Information Element Status Description
IdentityMThe identity of the VAL user or VAL UE performing the query
VAL group IDMThe identity of the VAL group to be queried
Query typeMIt indicates the query type, i.e., membership information
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10.3.2.5  Group information query responseWord‑p. 73

Table 10.3.2.5-1 describes the information flow group information query response from group management server to group management client.
Information Element Status Description
VAL group IDM
(see NOTE)
The identity of the VAL group to be queried
Query typeM
(see NOTE)
It indicates the query type, e.g. membership information
Query resultM
(see NOTE)
The group information retrieved from the group management server based on the query type, i.e., a list of group members
ResultMIndicates 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 requestWord‑p. 73

Table 10.3.2.6-1 describes the information flow group membership update request from the group management client to the group management server.
Information Element Status Description
Requester IdentityMThe identity of the group management client performing the request
VAL group IDMIdentity of the VAL group
IdentityMList of identities of the VAL users and VAL UEs affected by this operation
OperationsMAdd to or delete from the group
VAL service specific information
(see NOTE)
OPlaceholder 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 responseWord‑p. 74

Table 10.3.2.7-1 describes the information flow group membership update response from the group management server to the group management client.
Information Element Status Description
VAL group IDMIdentity of the VAL group
ResultMIndicates the success or failure for the operation
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10.3.2.8  Group membership notificationWord‑p. 74

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 IDMIdentity of the VAL group
IdentityMList of identities of the VAL users and VAL UEs affected by this operation
OperationsMAdd to or delete from the group
VAL service specific information
(see NOTE)
OPlaceholder 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.
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 IDMIdentity of the VAL group
OperationsMAdd to or delete from the group
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10.3.2.9  Group deletion requestWord‑p. 74

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 IdentityMThe identity of the group management client performing the request
VAL group IDMVAL group ID of the group to delete
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10.3.2.10  Group deletion responseWord‑p. 75

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 IDMIdentity of the VAL group requested to be deleted
ResultMIndicates success (group no longer exists), or failure (group deletion did not occur, e.g. authorization failure)
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10.3.2.11  Group deletion notificationWord‑p. 75

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 IDMVAL group ID has been deleted
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10.3.2.12  Group information requestWord‑p. 75

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 IdentityMThe identity of the group management server performing the request
VAL group IDMVAL group ID of the group
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10.3.2.13  Group information responseWord‑p. 75

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 IDMVAL group ID of the group
VAL group configuration informationO
(see NOTE 1)
Configuration information for the VAL group
Failure reasonO
(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 requestWord‑p. 76

Table 10.3.2.14-1 describes the information flow group information subscribe 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 IdentityMThe identity of the group management server performing the request
VAL group IDMVAL group ID of the group
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10.3.2.15  Group information subscribe responseWord‑p. 76

Table 10.3.2.15-1 describes the information flow group information subscribe 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 IDMVAL group ID of the group
ResultMIndicates success or failure of the subscribe request
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10.3.2.16  Group information notify requestWord‑p. 76

Table 10.3.2.16-1 describes the information flow group information notify request 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
Requester IdentityMThe identity of the group management server performing the request
VAL group IDMVAL group ID of the group
VAL group configuration informationMConfiguration information for the VAL group
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10.3.2.17  Group information notify responseWord‑p. 76

Table 10.3.2.17-1 describes the information flow group information notify response 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
VAL group IDMVAL group ID of the group
ResultMIndicates success or failure of the notification request
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10.3.2.18  Store group configuration requestWord‑p. 77

Table 10.3.2.18-1 describes the information flow store group configuration request from the group management client to the group management server.
Information Element Status Description
Requester IdentityMThe identity of the group management client performing the request
VAL group IDMVAL group ID of the group
VAL group configuration dataMVAL group configuration data
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10.3.2.19  Store group configuration responseWord‑p. 77

Table 10.3.2.19-1 describes the information flow store group configuration response from the group management server to the group management client.
Information Element Status Description
VAL group IDMVAL group ID of the group
ResultMIndicates the success or failure for the result
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10.3.2.20  Get group configuration requestWord‑p. 77

Table 10.3.2.20-1 describes the information flow get group configuration request from the group management client to the group management server.
Information Element Status Description
Requester IdentityMThe identity of the group management client performing the request
VAL group IDMVAL group ID of the group
VAL group information referenceMReference to configuration data for the VAL group
VAL services requested (see NOTE)OService(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 responseWord‑p. 77

Table 10.3.2.21-1 describes the information flow get configuration response from the group management server to the group management client.
Information Element Status Description
VAL group IDMVAL group ID of the group
VAL group configuration dataM
(see NOTE)
VAL group configuration data
ResultMIndicates 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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