5 Reference conditions, generic and test procedures, test parameters

38.523-13GPP5GSPart 1: ProtocolRelease 17TSUser Equipment (UE) conformance specification

5.1 Reference conditions

The reference environments used by all signalling tests in the present document are specified in TS 38.508-1 [4]. If a test requires an environment that is different to those specified in TS 38.508-1 [4] then, this shall be specified in the test itself.

5.2 Generic and test procedures

A set of basic generic procedures for bringing the UE into a specific signalling state, as well as, test procedures comprising well defined actions after the UE enters a specific state are specified in TS 38.508-1 [4]. These procedures are used (referred to) in numerous test cases throughout the present document.

5.3 Test parameters

5.3.1 PLMNs

PLMN identifiers such as PLMN1, PLMN2, etc. are used in test cases to associate a cell with an MCC and MNC for that cell.

Whenever a PLMN identifier is provided explicitly in a test description without explicit MCC and MNC values, the MCC and MNC values corresponding to the PLMN identifier shall be understood as those specified in TS 36.523-1 [42], Table 6.0.1-1.

If no PLMN is explicitly specified in the test then the PLMN(s) specified for the relevant cell(s) in TS 38.508-1 [4] (NR cells) or 36.508 [2] (E-UTRA cells) apply. If no PLMN is explicitly specified in the test nor in the TS 38.508-1 [4] (NR cells) or 36.508 [2] (E-UTRA cells) for the used in the test cell(s) then the PLMN used in the test is the one defined as PLMN1 in TS 36.523-1 [42], Table 6.0.1-1.

5.3.2 Cells

Cell identifiers such as NR Cell 1 and NGC Cell A (for NR cells), or, Cell 1 and Cell A (for E-UTRA cells). are used in test cases to associate a cell with various parameters.

Cells used in the tests throughout the present document are defined in TS 38.508-1 [4], subclauses 4.4.2 and 6.3.2.2 for NR cells, and, TS 36.508 [2], subclauses 4.4.2 and 6.3.2 for E-UTRA cells respectively. Signal levels for signalling tests are defined in TS 38.508-1 [4], subclause 6.2.2 and TS 36.508 [2], subclause 6.2.2.

Associated with the Cells used in the test cases are a number of parameters e.g. Tracing Area Identifiers (TAIs) such as TAI-1, TAI-2, etc., specific MCC and MNC values for the simulated PLMN, etc. For Default NAS parameters for simulated NR cells and Simulated network scenarios for NAS test cases for 5GS these are defined in TS 38.508-1 [4], subclauses 4.4.2 and 6.3.2.1 respectfully. Similarly such parameters are defined in TS 36.508 [2] for E-UTRA cells.

Whenever a Cell identifier is provided explicitly in a test description without explicit definition of parameters, the parameters values corresponding to the Cell identifier shall be understood as those specified in TS 38.508-1 [4] or TS 36.523-1 [42] respectively for the cell with that identifier.

Whenever a test in the present document requires cells characteristics, e.g. power level settings, TAIs, MCC/MNC which differ to those specified in TS 38.508-1 [4] for NR cells or in TS 36.508 [2] for E-UTRA cells then, these shall be specified explicitly in the test itself.

5.3.3 USIM

Default USIM fields and signalling test case specific USIM Configurations are specified in TS 38.508-1 [4], subclause 6.4.

Whenever a test in the present document does not provide an explicit reference to a specific USIM Configurations specified in TS 38.508-1 [4], subclause 6.4 then, the default parameters specified in TS 38.508-1 [4], subclause 4.8.3 shall be assumed.

Whenever a test in the present document requires specific USIM settings which do not exist in any of the defined USIM Configurations in TS 38.508-1 [4], it is recommended that a new USIM Configuration is defined and then the configuration is referred from the test. Defining specific USIM setting within a test definition should be avoided.

5.3.4 Messages and Information Elements (IEs)

Default Messages and IE contents, and where applicable IE fields values, used by the tests defined in the present document are specified in TS 38.508-1 [4], subclauses 4.6, 4.7 and 4.7A. For messages exchanged on other RAT e.g. E-UTRAN/EPC these can be found in TS 36.508 [2].

If a test requires a message and/or IE contents and/or IE field value which is different to those specified in TS 38.508-1 [4] then, specific message content shall be specified in the test itself with a derivation path referring to the relevant default message in TS 38.508-1 [4]. Whenever a specific message content is not explicitly provided in a test then this shall be understood as the message having exactly the same content as the default message specified in TS 38.508-1 [4].

NOTE: Similar rules apply to messages exchanged on other RATs and defined elsewhere e.g. in TS 36.508 [2].