4 UE conformance test functions

34.1093GPPRelease 17Special conformance testing functionsTerminal logical test interfaceTS

4.1 General description

The SS performs activation and deactivation of the conformance test functions in the UE by sending standard NAS Layer 3 messages. A specific protocol discriminator value has been defined in TS 24.007 [1], subclause 11.2.3.1.1 for the UE test command messages. Figure 4.1.1 illustrates the Layer 3 protocol entity Test Control (TC) where the UE test command messages terminates.

NOTE: The protocol discriminator value used for the TC messages is the same as used in GSM for the MS specific testing functions, see TS 44.014 [13].

Figure 4.1.1: TC protocol termination (TC =Test Control)

Apart from sending the appropriate deactivation command to the UE the functions shall be deactivated by switching off the UE.

The following UE conformance testing functions can be activated (and deactivated):

– UE test loop function;

– UE radio bearer test mode;

– Electrical Man Machine Interface (EMMI).

In addition to the conformance testing functions listed above there is a set of reference measurement channels that a UE need to support to enable RF conformance testing. The reference measurement channels are defined in TS 34.121 [8], Annex C for FDD and in TS 34.122 [9], Annex C for TDD.

Example of reference measurement channels (RMC) essential to all UEs supporting FDD or TDD are:

– UL 12.2 kbps RMC (Reference Measurement Channel);

– DL 12.2 kbps RMC.

Example of reference measurement channels associated with UE service capabilities for FDD (DL and UL) and TDD (DL only) are:

– DL 64 kbps RMC;

– DL 144 kbps RMC;

– DL 384 kbps RMC;

– UL 64 kbps RMC;

– UL 144 kbps RMC;

– UL 384 kbps RMC.

4.2 UE radio bearer test mode

The UE radio bearer test mode is specified in subclause 5.2.

The following TC procedures are used to control the UE radio bearer test mode:

– Activate UE radio bearer test mode;

– Deactivate UE radio bearer test mode.

4.3 UE test loop

The UE test loop function is specified in subclause 5.3.

The following TC procedures are used to control the UE test loop function:

– Close UE test loop;

– Open UE test loop.

A prerequisite for the UE test loop function is that the UE radio bearer test mode is active.

4.4 EMMI

The EMMI is specified in clause 7.

No specific TC procedures are associated with EMMI.