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Content for  TS 24.282  Word version:  18.1.0

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6  Common proceduresp. 47

6.1  Introductionp. 47

6.2  MCData client proceduresp. 47

6.2.1  Distinction of requests at the MCData clientp. 47

6.2.2  MCData conversation itemsp. 49

6.2.3  Disposition Notificationsp. 52

6.2.4  Sending SIP requests and receiving SIP responsesp. 53

6.2.5  Location information |R16|p. 54

6.2.6Void

6.2.7  Handling of in-progress emergency and imminent peril conditions |R17|p. 55

6.2.8  Priority communication conditions |R17|p. 61

6.2.8.1  MCData emergency group communication and imminent peril communication conditionsp. 61

6.2.8.1.1  SIP INVITE request or SIP REFER request for originating MCData emergency group communicationsp. 61
6.2.8.1.2  Resource-Priority header field for MCData emergency group communicationsp. 63
6.2.8.1.3  SIP re-INVITE request for cancelling MCData in-progress emergency group statep. 63
6.2.8.1.4  Receiving a SIP 2xx response to a SIP request for a priority communicationp. 64
6.2.8.1.5  Receiving a SIP 4xx response, SIP 5xx response or SIP 6xx response to a SIP request for a priority group communicationp. 64
6.2.8.1.6  Determining authorisation for initiating or cancelling an MCData emergency alertp. 65
6.2.8.1.7  Determining authorisation for cancelling the in-progress emergency state of an MCData groupp. 65
6.2.8.1.8  Determining authorisation for originating a priority group communicationp. 65
6.2.8.1.9  SIP request for originating MCData imminent peril group communicationsp. 66
6.2.8.1.10  Determining authorisation for cancelling an imminent peril group communicationp. 67
6.2.8.1.11  SIP re-INVITE request for cancelling MCData in-progress imminent peril group statep. 67
6.2.8.1.12  Resource-Priority header field for MCData imminent peril group communicationsp. 67
6.2.8.1.13  Receiving a SIP INFO request in the dialog of a SIP request for a priority group communicationp. 68
6.2.8.1.14  SIP re-INVITE request for cancelling the in-progress emergency group state of a group by a third-partyp. 69
6.2.8.1.15  Retrieving Resource-Priority header field valuesp. 69
6.2.8.1.16  Handling receipt of a SIP re-INVITE request for priority group communication origination status within a pre-established sessionp. 70
6.2.8.1.17  Priority group communication conditions upon receiving communication releasep. 71
6.2.8.1.18  Emergency private (one-to-one) communication conditions upon receiving communication releasep. 71

6.2.8.2Void

6.2.8.3  MCData emergency private (one-to-one) communication conditionsp. 71

6.2.8.4  Procedures for modifying ongoing communicationsp. 77

6.3  MCData server proceduresp. 80

6.3.1  Distinction of requests at the MCData serverp. 80

6.3.2  Sending SIP requests and receiving SIP responsesp. 85

6.3.3  Retrieving a group documentp. 86

6.3.4  Determining targeted group members for MCData communicationsp. 87

6.3.5  Affiliation checkp. 87

6.3.6  MCData conversation items |R15|p. 87

6.3.7  Procedures referenceable from other procedures |R16|p. 88

6.3.7.1  Emergency alert and emergency communications proceduresp. 88

6.3.7.1.1  Sending a SIP re-INVITE request for MCData emergency alert or emergency group communicationp. 88
6.3.7.1.2  Generating a SIP MESSAGE request for notification of in-progress emergency status changep. 89
6.3.7.1.3  Populate mcdata-info and location-info MIME bodies for emergency alertp. 89
6.3.7.1.4  Retrieving Resource-Priority header field values for emergency communicationsp. 90
6.3.7.1.5  Generating a SIP MESSAGE request to indicate successful receipt of an emergency alert or emergency cancellationp. 91
6.3.7.1.6  Generating a SIP MESSAGE request for notification of entry into or exit from an emergency alert area |R17|p. 91
6.3.7.1.7  Generating a SIP MESSAGE request for notification of entry into or exit from a group geographic area |R17|p. 92
6.3.7.1.8  Sending a SIP re-INVITE request for MCData imminent peril group communication |R17|p. 93
6.3.7.1.9  Validate priority request parameters |R17|p. 94
6.3.7.1.10  Sending a SIP INFO request in the dialog of a SIP request for a priority communication |R17|p. 94
6.3.7.1.11  Sending a SIP INVITE request for MCData emergency group communication |R17|p. 95
6.3.7.1.12  Sending a SIP UPDATE request for Resource-Priority header field correction |R17|p. 96
6.3.7.1.13  Generating a SIP re-INVITE request |R17|p. 97
6.3.7.1.14  Generating a SIP re-INVITE request to cancel an in-progress emergency |R17|p. 97
6.3.7.1.15  Receipt of SIP re-INVITE request by terminating participating function |R17|p. 97
6.3.7.1.16  Generating a SIP re-INVITE request for emergency private (one-to-one) communication origination within a pre-established session |R17|p. 98
6.3.7.1.17  Receiving a SIP re-INVITE request by the terminating participating function |R17|p. 99
6.3.7.1.18  Receipt of SIP re-INVITE for MCData one-to-one communication from the served user |R17|p. 99
6.3.7.1.19  Controlling MCData function receiving a SIP re-INVITE for upgrade to emergency one-to-one communication |R17|p. 100
6.3.7.1.20  Controlling MCData function receiving a SIP re-INVITE for cancellation of emergency one-to-one communication |R17|p. 102
6.3.7.1.21  Controlling MCData function sending a SIP re-INVITE for upgrade to emergency one-to-one communication |R17|p. 103
6.3.7.1.22  Controlling MCData function sending a SIP re-INVITE for cancellation of emergency one-to-one communication |R17|p. 103
6.3.7.1.23  Controlling MCData function generates a SIP 200 (OK) response |R17|p. 104

6.3.7.2  Authorisationsp. 105

6.3.8  Disposition Notifications |R17|p. 109

6.4  Handling of MIME bodies in a SIP messagep. 110

6.5  Confidentiality and Integrity Protection of sensitive XML contentp. 110

6.5.1  Generalp. 110

6.5.2  Confidentiality Protectionp. 111

6.5.3  Integrity Protection of XML documentsp. 115

6.6  Confidentiality and Integrity Protection of TLV messagesp. 118

6.7  Stored files operational procedures |R17|p. 121

6.8  Procedures at the MCData gateway |R17|p. 122


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