Access and Terminals (AT); Short Message Service (SMS) for PSTN/ISDN; Test Suites for SMS User Based Solution; Part 6: Abstract Test Suite (ATS) user side for Data Link Layer (DLL) Protocol 2 (V1.1.1)
The present document specifies the protocol conformance testing in TTCN for the Data Link layer in a Terminal Equipment implementing the Short Message Service (SMS) for PSTNASDN@ UBSProtocol2@ according to ES 201 912 [i] at the userhetwork interface. Basic ISDN or PSTN call procedures apply in order to establish a circuit-switched band connection between such Terminal Equipment and an SM-SC. Tests for these procedures are outside the scope of the present document. UBS1 terminals send and receive Data Link messages in the voice-band connection using the FSK signalling as defined in EN 300 659-2 [2] and ES 200 778-2 [3]. Tests for the Physical Layer of the FSK signalling are also outside the scope of the present document. Terminal Equipment implementing the Short Message Service (SMS) for PSTNASDN according to UBS Protocol 2 are required to implement the Transfer Layer according to ES 20 1 9 12 [i]. Using the Remote Single Layer Embedded Test Method (see ISO/IEC 9646-2 [7]) for the UBS Protocol 2 Data Link layer @ Transfer Layer messages appear here only as octet string parameters of Data Link layer messages. Tests for the Transfer Layer are not within the scope of the present document. The Abstract Test Suite designed in the present document is based on the test cases specified in tabular form combined with prose in ES 202 912-5 [5]. The following information can be found in this part@ directly or by reference (mostly to ES 202 912-5 [5]): - The overall test suite structure. - The testing architecture. - The test methods and PCO definitions. - The test configuration. - TTCN styles and conventions. - The design principles@ assumptions@ and used interfaces to the TTCN tester (e.g. ASPS). - Information about the assumed services of the Physical Layer. - Interrelationships and dependencies between timeout values. - The partial PIXIT proforma@ - The TTCN.MP and TTCN.GR forms for the mentioned protocols tests. While ISO/IEC 9646-1 [6] and ISO/IEC 9646-2 [7] have been used as the basis for the test specification methodology@ the ATS contained in the present document has been specified using TTCN-2++ (TR 101 666 [8]). Two forms of the ATS are provided (see annex A): - The TTCN Graphical form (TTCN.GR). - The TTCN Machine Processable form (TTCN.MP).