Content for TS 23.280 Word version: 19.1.0

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10.2 Group management (on-network) 10.2.1 General 10.2.2 Information flows for group management 10.2.2.1 Group creation request 10.2.2.2 Group creation response 10.2.2.3 Group regroup request (group management client - group management server) 10.2.2.4 Group regroup response (group management server - group management client) 10.2.2.5 Group regroup teardown request 10.2.2.6 Group regroup teardown response 10.2.2.7 Group creation notify 10.2.2.8 Group regroup notify 10.2.2.9 Group regroup teardown notify 10.2.2.10 Group regroup teardown notification 10.2.2.11 Group regroup teardown notification response 10.2.2.12 Group regroup request (group management server - group management server) 10.2.2.13 Group regroup response (group management server - group management server) 10.2.2.14 Group regroup notification 10.2.2.15 Group regroup notification response 10.2.2.16 Group information query request 10.2.2.17 Group information query response 10.2.2.18 Group membership update request 10.2.2.19 Group membership update response 10.2.2.20 Group membership notification 10.2.2.21 Group deletion request 10.2.2.22 Group deletion response 10.2.2.23 Group deletion notification 10.2.2.24 Group information provision request 10.2.2.25 Group information provision response 10.2.2.26 Group information request 10.2.2.27 Group information response 10.2.2.28 Group information subscribe request 10.2.2.29 Group information subscribe response 10.2.2.30 Group information notify request 10.2.2.31 Group information notify response
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10.2 Group management (on-network) p. 98

10.2.1 General p. 98

Group management procedures apply to on-network MC service only.

Group creation provides a dedicated MC service group to individual MC service users to enable the required communication for one or multiple MC services. This includes the normal group creation by administrators as well as user regrouping by authorized user/dispatcher.

For an MC service, group regrouping enables dispatchers or authorized users to temporarily combine several MC service groups.

10.2.2 Information flows for group management p. 99

10.2.2.1 Group creation request p. 99

Table 10.2.2.1-1 describes the information flow group creation request from the group management client to the group management server.

Table 10.2.2.1-1: Group creation request

Information element	Status	Description
MC service ID list	M	List of MC service IDs that are part of the group to be created corresponding to the list of the configured services (see NOTE 1)
MC service list (see NOTE 2)	O	List of MC services whose service communications are to be enabled on the group.
Proposed MC service group ID	O	MC service group ID proposed for the requested group
MC service group configuration data	O	Configuration data for the requested group (see NOTE 3)
NOTE 1: The MC service ID list can be an empty list. NOTE 2: This information element shall be included in the message for creating a group configured for multiple MC services. NOTE 3: If the MC service group configuration data is not present it can be provided later using the "Store group configuration request" (see subclause 10.1.2.1).

10.2.2.2 Group creation response p. 99

Table 10.2.2.2-1 describes the information flow group creation response from the group management server to the group management client.

Table 10.2.2.2-1: Group creation response

Information element	Status	Description
MC service group ID	M (see NOTE)	MC service group ID of the group
Result	M	Indicates success or reason for failure
NOTE: If the Result information element indicates failure then the value of MC service group ID information element has no meaning.

10.2.2.3 Group regroup request (group management client - group management server) p. 99

Table 10.2.2.3-1 describes the information flow for the group regroup request from the group management client to the group management server.

Table 10.2.2.3-1: Group regroup request

Information element	Status	Description
MC service group ID list	M	List of MC service group IDs to be combined
Security level (see NOTE 1)	O	Required security level for the temporary group
Priority level	O	Required priority level for the temporary group
MC service list (see NOTE 2)	O	A subset of the common MC service(s) to be applied for the regrouped group
Broadcast regroup	O	Indicates that only an authorized MC service user can transmit on this temporary group.
NOTE 1: Security level refers to the configuration of media and floor control protection parameters as listed in Annex A.4, Table A.4-1. NOTE 2: If this information element is not present, all the MC service(s) that are common to the groups being regrouped will be applicable for the regrouped group.

10.2.2.4 Group regroup response (group management server - group management client) p. 100

Table 10.2.2.4-1 describes the information flow for the group regroup response from the group management server to the group management client.

Table 10.2.2.4-1: Group regroup response

Information element	Status	Description
MC service group ID	O (see NOTE)	MC service group ID of the temporary group
MC service list	O	List of MC services whose service communications are to be enabled on this temporary group
Result	M	Indicates the success or failure of group regroup
NOTE: Shall be present if the Result information element indicates that the group regroup operation is successful. Otherwise MC service group ID shall not be present.

10.2.2.5 Group regroup teardown request p. 100

Table 10.2.2.5-1 describes the information flow group regroup teardown request from the group management client to the group management server.

Table 10.2.2.5-1: Group regroup teardown request

Information element	Status	Description
MC service group ID	M	MC service group ID of the temporary group which is requested to be torn down

10.2.2.6 Group regroup teardown response p. 100

Table 10.2.2.6-1 describes the information flow group regroup teardown response from the group management server to the group management client.

Table 10.2.2.6-1: Group regroup teardown response

Information element	Status	Description
MC service group ID	M	MC service group ID of the temporary group
Result	M	Indicates the success or failure of group regroup teardown

10.2.2.7 Group creation notify p. 100

Table 10.2.2.7-1 describes the information flow group creation notify from the group management server to the MC service server(s).

Table 10.2.2.7-1: Group creation notify

Information element	Status	Description
MC service group ID	M	MC service group ID that was created based on the MC service ID list and the MC services enabled on them
MC service ID list	M	List of MC service IDs that are part of the created group

10.2.2.8 Group regroup notify p. 101

Table 10.2.2.8-1 describes the information flow group regroup notify from the group management server to the MC service server.

Table 10.2.2.8-1: Group regroup notify

Information element	Status	Description
MC service group ID list	M	List of constituent MC service group IDs
MC service group ID	M	MC service group ID of the temporary group
MC service list	O	List of MC services whose service communications are to be enabled on this temporary group.
Broadcast regroup	O	Indicates that only an authorized MC service user can transmit on this temporary group.

10.2.2.9 Group regroup teardown notify p. 101

Table 10.2.2.9-1 describes the information flow group regroup teardown notify from the group management server to the MC service server.

Table 10.2.2.9-1: Group regroup teardown notify

Information element	Status	Description
MC service group ID	M	MC service group ID of the temporary group which is being torn down

10.2.2.10 Group regroup teardown notification p. 101

Table 10.2.2.10-1 describes the information flow group regroup teardown notification between group management servers and from the group management server to the group management client.

Table 10.2.2.10-1: Group regroup teardown notification

Information element	Status	Description
MC service group ID	M	MC service group ID of the temporary group which is torn down

10.2.2.11 Group regroup teardown notification response p. 101

Table 10.2.2.11-1 describes the information flow group regroup teardown notification response between group management servers and from the group management client to the group management server.

Table 10.2.2.11-1: Group regroup teardown notification response

Information element	Status	Description
MC service group ID	M	MC service group ID of the temporary group which was torn down
Result	M	Indicates the success or failure

10.2.2.12 Group regroup request (group management server - group management server) p. 102

Table 10.2.2.12-1 describes the information flow group regroup request between group management servers.

Table 10.2.2.12-1: Group regroup request

Information element	Status	Description
MC service group ID list	M	List of constituent MC service group IDs belonging to the target group management server

10.2.2.13 Group regroup response (group management server - group management server) p. 102

Table 10.2.2.13-1 describes the information flow group regroup response between group management servers.

Table 10.2.2.13-1: Group regroup response

Information element	Status	Description
Result	M	Indicates whether the group regroup was accepted or rejected by the group management server in the partner system
MC service group ID list	M	List of constituent MC service group IDs from group management server of the partner system

10.2.2.14 Group regroup notification p. 102

Table 10.2.2.14-1 describes the information flow group regroup notification between group management servers and from the group management server to the group management client.

Table 10.2.2.14-1: Group regroup notification

Information element	Status	Description
MC service group ID list	M	List of constituent MC service group IDs
MC service group ID	M	MC service group ID of the temporary group
Priority level	O	Required priority level for the temporary group
Security level (see NOTE)	O	Required security level for the temporary group
Broadcast regroup	O	Indicates that only an authorized MC service user can transmit on this temporary group.
NOTE: Security level refers to the configuration of media and floor control protection parameters as listed in Annex A.4, Table A.4-1.

10.2.2.15 Group regroup notification response p. 102

Table 10.2.2.15-1 describes the information flow group regroup notification response between group management servers and from the group management client to the group management server.

Table 10.2.2.15-1: Group regroup notification response

Information element	Status	Description
MC service group ID list	M	List of constituent MC service group IDs
MC service group ID	M	MC service group ID of the temporary group
Priority level	M	Required priority level for the temporary group
Security level	M	Required security level for the temporary group
Broadcast regroup	O	Indicates that only an authorized MC service user can transmit on this temporary group.

10.2.2.16 Group information query request p. 103

Table 10.2.2.16-1 describes the information group information query request from group management client to group management server.

Table 10.2.2.16-1: Group information query request

Information element	Status	Description
MC service ID	M	The identity of the MC service user who performs the query.
MC service group ID	M	The identity of the MC service group to be queried.
Query type	M	It indicates the query type, i.e., membership or affiliated group members.

10.2.2.17 Group information query response p. 103

Table 10.2.2.17-1 describes the information flow group information query response from group management server to group management client.

Table 10.2.2.17-1: Group information query response

Information element	Status	Description
MC service ID	M	The identity of the MC service user who performs the query.
MC service group ID	M	The identity of the MC service group to be queried.
Query type	M	It indicates the query type, e.g., membership or affiliated group members.
Query result	M	The group information retrieved from the group management server based on the query type, i.e., a list of group members or a list of affiliated group member.

10.2.2.18 Group membership update request p. 103

Table 10.2.2.18-1 describes the information flow group membership update request from the group management client to the group management server.

Table 10.2.2.18-1: Group membership update request

Information element	Status	Description
MC service group ID	M	Identity of the MC service group
MC service ID list	M	List of identities of the MC service users that are affected by this operation
Operations	M	Add to or delete from the group

10.2.2.19 Group membership update response p. 103

Table 10.2.2.19-1 describes the information flow group membership update response from the group management server to the group management client.

Table 10.2.2.19-1: Group membership update response

Information element	Status	Description
MC service group ID	M	Identity of the MC service group
Result	M	Indicates the success or failure for the operation

10.2.2.20 Group membership notification p. 104

Table 10.2.2.20-1 describes the information flow group membership notification from the group management server to the MC service server.

Table 10.2.2.20-1: Group membership notification

Information element	Status	Description
MC service group ID	M	Identity of the MC service group
MC service ID list	M	List of identities of the MC service users that are affected by this operation
Operations	M	Add to or delete from the group

Table 10.2.2.20-2 describes the information flow group membership notification from the group management server to the group management client.

Table 10.2.2.20-2: Group membership notification

Information element	Status	Description
MC service group ID	M	Identity of the MC service group
Operations	M	Add to or delete from the group

10.2.2.21 Group deletion request p. 104

Table 10.2.2.21-1 describes the information flow group deletion request from the group management client to the group management server.

Table 10.2.2.21-1: Group deletion request

Information element	Status	Description
MC service group ID	M	MC service group ID of the group to delete

10.2.2.22 Group deletion response p. 104

Table 10.2.2.22-1 describes the information flow group deletion response from the group management server to the group management client.

Table 10.2.2.22-1: Group deletion response

Information element	Status	Description
MC service group ID	M	Identity of the MC service group requested deleted
Result	M	Indicates success (group no longer exists), or failure (group deletion did not occur, eg. authorization failure).

10.2.2.23 Group deletion notification p. 104

Table 10.2.2.23-1 describes the information flow group deletion notification from the group management server to the MC service server, and from the group management server to the group management clients for MC service users which are members of the group.

Table 10.2.2.23-1: Group deletion notification

Information element	Status	Description
MC service group ID	M	MC service group ID has been deleted.

10.2.2.24 Group information provision request |R15| p. 105

Table 10.2.2.24-1 describes the information flow group information provision request from the group management server in the primary MC system of the MC service group to the group management server in the partner MC system of the MC service group.

Table 10.2.2.24-1: Group information provision request

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
MC service group configuration information	M	Configuration information for the MC service group

10.2.2.25 Group information provision response |R15| p. 105

Table 10.2.2.25-1 describes the information flow group information provision response from the group management server in the partner MC system of the MC service group to the group management server in the primary MC system of the MC service group.

Table 10.2.2.25-1: Group information provision response

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
Result	M	Indicates success or failure of reception, modification and storage of MC service group configuration information

10.2.2.26 Group information request |R15| p. 105

Table 10.2.2.26-1 describes the information flow group information request from the group management server in the partner MC system of the MC service group to the group management server in the primary MC system of the MC service group.

Table 10.2.2.26-1: Group information request

Information element	Status	Description
MC service group ID	M	MC service group ID of the group

10.2.2.27 Group information response |R15| p. 105

Table 10.2.2.27-1 describes the information flow group information response from the group management server in the primary MC system of the MC service group to the group management server in the partner MC system of the MC service group.

Table 10.2.2.27-1: Group information response

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
MC service group configuration information	O (see NOTE 1)	Configuration information for the MC service group
Failure reason	O (see NOTE 2)	Indicates reason for failure to provide MC service group configuration information
NOTE 1: Shall be present if the request can be fulfilled by the group management server in the primary MC system of the MC service group. NOTE 2: Shall be present if the request cannot be fulfilled by the group management server in the primary MC system of the MC service group.

10.2.2.28 Group information subscribe request |R15| p. 106

Table 10.2.2.28-1 describes the information flow group information subscribe request from the group management server in the partner MC system of the MC service group to the group management server in the primary MC system of the MC service group.

Table 10.2.2.28-1: Group information subscribe request

Information element	Status	Description
MC service group ID	M	MC service group ID of the group

10.2.2.29 Group information subscribe response |R15| p. 106

Table 10.2.2.29-1 describes the information flow group information subscribe response from the group management server in the primary MC system of the MC service group to the group management server in the partner MC system of the MC service group.

Table 10.2.2.29-1: Group information subscribe response

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
Result	M	Indicates success or failure of the subscribe request

10.2.2.30 Group information notify request |R15| p. 106

Table 10.2.2.30-1 describes the information flow group information notify request from the group management server in the primary MC system of the MC service group to the group management server in the partner MC system of the MC service group.

Table 10.2.2.30-1: Group information notify request

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
MC service group configuration information	M	Configuration information for the MC service group

10.2.2.31 Group information notify response |R15| p. 106

Table 10.2.2.31-1 describes the information flow group information notify response from the group management server in the partner MC system of the MC service group to the group management server in the primary MC system of the MC service group.

Table 10.2.2.31-1: Group information notify response

Information element	Status	Description
MC service group ID	M	MC service group ID of the group
Result	M	Indicates success or failure of the notification request