For the purposes of the present document, the terms and definitions given in TR 21.905
and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905
SBc-AP consists of Elementary Procedures (EPs). An Elementary Procedure is a unit of interaction between MME and CBC. These Elementary Procedures are defined separately and are intended to be used to build up complete sequences in a flexible manner. If the independence between some EPs is restricted, it is described under the relevant EP description. Unless otherwise stated by the restrictions, the EPs may be invoked independently of each other as stand alone procedures, which can be active in parallel. Examples on using several SBc-APs together with each other and EPs from other interfaces can be found in reference [FFS].
An EP consists of an initiating message and possibly a response message. Two kinds of EPs are used:
Class 1: Elementary Procedures with response (success and/or failure).
Class 2: Elementary Procedures without response.
For Class 1 EPs, the types of responses can be as follows:
A signalling message explicitly indicates that the elementary procedure successfully completed with the receipt of the response.
A signalling message explicitly indicates that the EP failed.
On time supervision expiry (i.e. absence of expected response).
Successful and Unsuccessful:
One signalling message reports both successful and unsuccessful outcome for the different included requests. The response message used is the one defined for successful outcome.
Class 2 EPs are considered always successful.
For the purposes of the present document, the abbreviations given in TR 21.905
and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905
Commercial Mobile Alert System
Cell Broadcast Center
Cell Broadcast Service
Evolved Packet Core
Evolved Packet System
Earthquake and Tsunami Warning System
Mobility Management Entity
Public Warning System
PWS - Inter Working Function
Stream Control Transmission Protocol