10.3.2 Information flows for group call over interworking group
23.2833GPPMission Critical Communication Interworking with Land Mobile Radio SystemsRelease 18TS
10.3.2.1 General
The following subclauses define information flows for group calls on the IWF-1 interface. Group call related information flows on reference points other than IWF-1 are defined in 3GPP TS 23.379 [7].
10.3.2.2 IWF group call request
Table 10.3.2.2-1 describes the information flow IWF group call request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.2-1: IWF group call request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID (see NOTE 1) |
M |
The MCPTT ID of the calling party |
|
Functional alias |
O |
The functional alias of the calling party |
|
MCPTT group ID |
M |
The MCPTT group ID of the interworking group on which the call is initiated |
|
SDP offer |
M |
Media parameters of MCPTT server |
|
Implicit floor request |
O |
Indicates that the originator requests the floor. |
|
Broadcast indicator |
O |
Indicates that the group call request is for a broadcast group call |
|
Location |
O |
Location of the calling party |
|
NOTE 1: If the LMR system does not provide the calling party identity when the group call is originated from the LMR system, then this information element may be set to a MCPTT ID reserved for LMR user at the IWF. NOTE 2: This element shall be included only when the originating client requests the floor. |
||
10.3.2.3 IWF group call response (IWF – MCPTT server)
Table 10.3.2.3-1 describes the information flow IWF group call response from the MCPTT server to the IWF and from the IWF to MCPTT server.
Table 10.3.2.3-1: IWF group call response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the target MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is requested |
|
SDP answer |
M |
Media parameters selected |
10.3.2.4 IWF Group-broadcast group call setup request
Table 10.3.2.4-1 describes the information flow IWF group-broadcast group call setup request from the MCPTT server to the IWF and from the IWF to the MCPTT server.
Table 10.3.2.4-1: IWF Group-broadcast group call setup request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID (see NOTE 1) |
M |
The MCPTT ID of the calling party |
|
Functional alias |
O |
The functional alias of the calling party |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is requested |
|
SDP offer |
M |
Media parameters of MCPTT clients |
|
Implicit floor request (see NOTE 2) |
O |
Indicates that the originating client requests the floor |
|
Location |
O |
Location of the calling party |
|
NOTE 1: If the LMR system does not provide the calling party identity when the group-broadcast group call setup request is originated from the LMR system, then this information element may be set to a MCPTT ID reserved for the LMR user at the IWF. NOTE 2: This element shall be included only when the originating client requests the floor. |
||
10.3.2.5 IWF Group-broadcast group call setup response
Table 10.3.2.5-1 describes the information flow IWF group-broadcast group call setup response from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.5-1: IWF Group-broadcast group call setup response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the calling party |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is requested |
|
SDP answer |
M |
Media parameters selected |
10.3.2.6 IWF Group-broadcast group call release request
Table 10.3.2.6-1 describes the information flow IWF group-broadcast group call release request from the MCPTT server to the IWF and from the IWF to the MCPTT server.
Table 10.3.2.6-1: IWF Group-broadcast group call release request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M (see NOTE) |
The MCPTT ID of the MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is released |
|
NOTE: If the LMR system does not provide the calling party identity when the group-broadcast group call release request is originated from the LMR system, then this information element may be set to a MCPTT ID reserved for the LMR user at the IWF. |
||
10.3.2.7 IWF group-broadcast group call release response
Table 10.3.2.7-1 describes the information flow IWF group-broadcast group call release request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.7-1: IWF Group-broadcast group call release response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the target MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is released |
10.3.2.8 IWF group join request
Table 10.3.2.8-1 describes the information flow IWF group join request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.8-1: IWF group join request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the originator of the request. |
|
Functional alias |
O |
The functional alias of the calling party |
|
MCPTT group ID |
M |
The MCPTT group ID of the group to which the group communication is requested |
|
SDP offer |
M |
Media parameters of originator |
|
Implicit floor request |
O |
Indicates that the originating client requests the floor. |
|
NOTE 1: The IWF is configured with an MCPTT ID for use when the IWF is affiliating itself to the group on behalf of the LMR system. NOTE 2: This element is included only when the originating client requests the floor. |
||
10.3.2.9 IWF group join response
Table 10.3.2.9-1 describes the information flow group join response from the MCPTT server to the IWF and from the IWF to the MCPTT server.
Table 10.3.2.9-1: IWF group join response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the originator of the request. (see NOTE) |
|
MCPTT group ID |
M |
The MCPTT group ID of the group to which the group communication is requested |
|
SDP answer |
M |
Media parameters selected |
|
NOTE: The IWF is configured with an MCPTT ID for use when the IWF is affiliating itself to the group on behalf of the LMR system. |
||
10.3.2.10 IWF group call leave request
Table 10.3.2.10-1 describes the information flow IWF group call leave request from the MCPTT server to the IWF and from the IWF to the MCPTT server.
Table 10.3.2.10-1: IWF group call leave request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group from which the user is leaving |
10.3.2.11 IWF group call leave response
Table 10.3.2.11-1 describes the information flow IWF group call leave response from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.11-1: IWF group call leave response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group from which the user is leaving |
10.3.2.12 IWF group call release request
Table 10.3.2.12-1 describes the information flow IWF group call release request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.12-1: IWF group call release request information elements
|
Information element |
Status |
Description |
|
MCPTT ID (see NOTE) |
O |
The MCPTT ID of the initiating MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is released |
|
Release reason |
O |
The reason why the call is released |
|
NOTE: This IE is not included if the group call release is initiated by the server (e.g. due to timeout) |
||
10.3.2.13 IWF group call release response
Table 10.3.2.13-1 describes the information flow IWF group call release response from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.13-1: IWF group call release response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the target MCPTT group member |
|
MCPTT group ID |
M |
The MCPTT group ID of the group on which the call is released. |
10.3.2.14 IWF pre-configured regroup request
Table 10.3.2.14-1 describes the information flow IWF pre-configured regroup request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.14-1 IWF pre-configured regroup request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the requester |
|
MCPTT group ID |
M |
MCPTT group ID of the regroup group |
|
MCPTT group ID |
M |
MCPTT group ID of the MCPTT group from which configuration is to be taken |
|
MCPTT group ID list |
O (see NOTE) |
List of MCPTT groups to be regrouped into the pre-configured regroup group |
|
MCPTT ID list |
O (see NOTE) |
List of MCPTT IDs to be regrouped into the pre-configured user regroup group |
|
NOTE: One and only one of these shall be present. |
||
10.3.2.15 IWF pre-configured regroup response
Table 10.3.2.15-1 describes the information flow IWF pre-configured regroup response from IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.15-1 IWF pre-configured regroup response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the requester of the regrouping operation |
|
MCPTT group ID |
M |
MCPTT group ID of the regroup group |
|
Result |
M |
Result of the regrouping operation |
10.3.2.16 IWF pre-configured regroup cancel request
Table 10.3.2.16-1 describes the information flow pre-configured regroup cancel request from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.16-1 IWF pre-configured regroup cancel request information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the requester |
|
MCPTT group ID |
M |
MCPTT group ID of the regroup group |
10.3.2.17 IWF pre-configured regroup cancel response
Table 10.3.2.17-1 describes the information flow IWF pre-configured regroup cancel response from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.17-1 IWF pre-configured regroup cancel response information elements
|
Information Element |
Status |
Description |
|
MCPTT ID |
M |
The MCPTT ID of the requester of the regroup removal |
|
MCPTT group ID |
M |
MCPTT group ID of the regroup group |
|
Result |
M |
Result of the regroup removal operation |
10.3.2.18 IWF pre-configured regroup reject (IWF – MCPTT server, MCPTT server – IWF)
Table 10.3.2.18-1 describes the information flow IWF pre-configured regroup reject from the IWF to the MCPTT server and from the MCPTT server to the IWF.
Table 10.3.2.18-1 IWF pre-configured regroup reject information elements
|
Information Element |
Status |
Description |
|
MCPTT group ID |
M |
MCPTT group ID of the regroup group |
|
Reject reason |
M |
Reason for rejecting the regrouping operation |