Content for TS 22.179 Word version: 19.3.0
6.8 MCPTT priority requirements
6.8.1 General
6.8.2 3GPP system access controls
6.8.3 3GPP system admission controls
6.8.4 3GPP system scheduling controls
6.8.5 UE access controls
6.8.6 Application layer priorities
6.8.6.1 Overview
6.8.6.2 Requirements
6.8.7 Call types based on priorities
6.8.7.1 MCPTT Emergency Group Call requirements
6.8.7.2 MCPTT Emergency Private Call (with Floor control) requirements
6.8.7.3 Imminent Peril group call requirements
6.8.7.4 MCPTT Emergency Alert
6.8.7.4.1 Requirements
6.8.7.4.2 MCPTT Emergency Alert cancellation requirements
6.9 IDs and aliases
6.10 User Profile management
6.11 Support for multiple devices
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6.8 MCPTT priority requirements p. 47
6.8.1 General p. 47
[R-6.8.1-001]
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[R-6.8.1-002]
The MCPTT Service shall provide an access control mechanism to support multiple Access Priorities to prioritize MCPTT MO call initiation attempts, depending on their access priorities.
[R-6.8.1-003]
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6.8.2 3GPP system access controls p. 48
[R-6.8.2-001]
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6.8.3 3GPP system admission controls p. 48
[R-6.8.3-001]
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6.8.4 3GPP system scheduling controls p. 48
[R-6.8.4-001]
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6.8.5 UE access controls p. 48
[R-6.8.5-001]
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6.8.6 Application layer priorities p. 48
6.8.6.1 Overview p. 48
Dispatchers from different critical communication organizations access the same networks and network resources. Depending on the event, the priority is given to an organization and/or a group rather than to another. For instance, in case of a fire priority is given to the fire brigades dealing with it, while in case of a criminal arrest priority is given to the police officers in charge of the arrest.
6.8.6.2 Requirements p. 48
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The MCPTT system may stop already established MCPTT calls with the capability to be pre-empted and a lower application layer priority to allow a new MCPTT call with pre-emption capability enabled for pre-emption to be established.
[R-6.8.6.2-005]
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6.8.7 Call types based on priorities p. 49
6.8.7.1 MCPTT Emergency Group Call requirements p. 49
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6.8.7.2 MCPTT Emergency Private Call (with Floor control) requirements p. 49
[R-6.8.7.2-001]
The MCPTT Service shall ensure that MCPTT Emergency Private Calls (with Floor control) have the highest priority over all other MCPTT Private Calls.
[R-6.8.7.2-002]
The MCPTT Service shall be capable of requesting increased priority for the Participants of an MCPTT Emergency Private Call.
[R-6.8.7.2-003]
The MCPTT Service shall be capable of changing a Private Call (with Floor control) in progress to an MCPTT Emergency Private Call (with Floor control).
[R-6.8.7.2-004]
MCPTT Emergency Private Calls (with Floor control), including their content and signalling, shall have pre-emptive priority over all other types of MCPTT calls, except System Calls, MCPTT Emergency Group Calls and other MCPTT Emergency Private Calls (with Floor control).
6.8.7.3 Imminent Peril group call requirements p. 49
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6.8.7.4 MCPTT Emergency Alert p. 49
6.8.7.4.1 Requirements p. 49
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6.8.7.4.2 MCPTT Emergency Alert cancellation requirements p. 49
[R-6.8.7.4.2-001]
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6.9 IDs and aliases p. 49
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6.10 User Profile management p. 50
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6.11 Support for multiple devices p. 50
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