ETSI EN 300 392-12-22

ETSI EN 300 392-12-22defines the stage 3 specifications of the Supplementary Service Dynamic Group NumberAssignment (SS-DGNA) for the Terrestrial Trunked Radio (TETRA).

The SS-DGNA enables a user to dynamically define group identities and group related parameters to the TETRAsystem and to the subscribers in the system. These definitions are used to enable group call invocations to dynamicallydefined groups. The SS-DGNA specification defines the creation, modification, deletion and interrogation of groupdefinitions in the Switching and Management Infrastructure (SwMI), in the Mobile Station (MS).

The present document does not include the specification for access priority used for random access in uplink and callpriority used by SwMI for resource allocation in a group call. Access priority and call priority can be specified andapplied for groups using Supplementary Services Access Priority (SS-AP), Priority Call (SS-PC) and Pre-emptivePriority Call (SS-PPC). Thus, the definition procedure of these priorities is outside the scope of the present document.

Man-Machine Interface (MMI) and charging principles are also outside the scope of the present document.

Supplementary service stage 3 specification is preceded by the stage 1 and the stage 2 specifications of the service.Stage 1 describes the functional capabilities from the user’s point of view. Stage 2 defines the functional behaviour interms of functional entities and information flows. Stage 3 gives the precise description of the supplementary servicefrom the implementation point of view. It defines the protocols for the service and the encoding rules for theinformation flows. It defines the processes for the functional entities and their behaviour. The described protocols andtheir behaviour apply for the SwMI and for the MS and can be applied over the Inter-System Interface (ISI) betweenTETRA systems.

Edition:

1.4.1

Published:

02/01/2015

Number of Pages:

59

File Size:

1 file , 290 KB

Note:

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