SIST EN 300 394-1 V2.4.1:2006

• Abstract:

  The present document specifies the minimum technical characteristics of TETRA Voice plus Data (V+D) Base Stations (BS) and Mobile Station (MS) equipment, and TETRA Direct Mode Operation (DMO) equipment, and the radio test methods used for type testing. Specific test methods for DMO equipment are defined in annex F of the present document. The purpose of these specifications is to provide a sufficient quality of radio transmission and reception for equipment operating in a TETRA system and to minimize harmful interference to other equipment. The present document is applicable to TETRA systems operating at radio frequencies in the range of 300 MHz to 1 GHz.

• Status: Published
• Publication Date: 31-May-2006
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jun-2006
• Due Date: 01-Jun-2006
• Completion Date: 01-Jun-2006
• Ref Project: ETSI EN 300 394-1 V2.4.1 (2006-02) - Terrestrial Trunked Radio (TETRA); Conformance testing specification; Part 1: Radio

SIST EN 300 394-1 V2.4.1:2006 is the Slovenian standard published by SIST and identical to EN 300 394-1 Version 2.4.1. It is the TETRA conformance testing specification for radio equipment, defining the minimum radio characteristics and type-test methods for TETRA Voice plus Data (V+D) Base Stations (BS), Mobile Stations (MS), and Direct Mode Operation (DMO) equipment in the 300 MHz to 1 GHz range. In practice, it tells manufacturers and test laboratories how to verify radio performance and check that the equipment will not create harmful interference.

What does SIST EN 300 394-1 V2.4.1:2006 specify?

SIST EN 300 394-1 V2.4.1:2006 specifies radio conformance testing for TETRA equipment, not network design or service operation. It applies to BS, MS, and DMO equipment and sets the minimum technical characteristics and test methods used for type testing in the TETRA frequency range from 300 MHz to 1 GHz.

The document is organized as follows:

• Clauses 1 to 3 cover scope, references, and definitions, symbols, and abbreviations.
• Clause 4 gives general requirements for presenting equipment for testing.
• Clause 5 defines the radio test configuration, test signals, and test modes.
• Clause 6 sets the test conditions.
• Clause 7 states the technical characteristics and limits.
• Clauses 8 to 10 give the measurement methods.
• Clause 11 covers measurement uncertainty.
• Annexes A to F provide receiver test data, test-system functions, interface definitions, loopback methods, guidance, and DMO testing.

Annex	What it covers
A	TETRA receiver testing, including spurious-response frequencies, BS and MS receiver test cases, and T1 burst content
B	Radio test system functions such as the sampling system, TETRA filter, spectrum analyser, error rate tester, propagation simulators, and controller
C	TETRA Test Connector Interface (TTCI), including layers 1 to 3, message formats, control of MS/BS, and codec conformance testing
D	RF Test Facility using RF Loop Back, including TT protocol, T1 test mode, loopback scenarios, and PDU descriptions
E	Informative guidance on using RF loop back to test a TETRA MS
F	DMO radio testing, including extra tests, exceptions, and DMO-specific methods

What are the key requirements of SIST EN 300 394-1 V2.4.1:2006?

The main requirements are spread across clauses 4 to 11 and Annex F. Together they define what must be available for test, how the radio is driven during test, what limits apply, and how results are judged.

• Clause 4 - equipment presentation for testing: Each unit submitted for type testing has to represent the intended equipment and operating channels. The manufacturer provides production models, or pre-production models built to the same drawings and specifications, so the lab tests the real product configuration rather than a special sample.

• Clause 4.1.1 - test access and information: The test setup needs decoded data output for the logical channels under test, plus any test signalling data. The standard allows this through a physical test connector or through a virtual RF loopback connection, which gives labs two ways to obtain the same test visibility.

• Clause 5 - test configuration, signals, and modes: The equipment under test must be operable in test transmit and test receive modes. The wanted signal is T1, the interferer is T2, and the unmodulated interferer is T3; for MS testing, the Tx_on parameter in BNCH/T tells the unit which mode to use. In practice, this is what lets the tester force the radio into the exact state needed for each measurement.

• Clause 5 and Annex A - channel and signal control: The test structure uses T1 to carry the BSCH and BNCH/T information needed to define the test channel, including the burst type and operating frequency information. For receiver testing, Annex A ties the test cases to specific channel types, propagation conditions, signal levels, interferer levels, and minimum sample sizes, so the lab knows which scenario to run and how much evidence to collect.

• Clause 6 - test conditions: Type tests are performed under normal conditions and, where required, under extreme conditions. The extreme combinations are LTLV, LTHV, HTLV, and HTHV, so the lab checks performance against both temperature and supply-voltage stress. The equipment must be at thermal balance before measurements at extreme temperatures, which avoids measuring a unit that is still drifting.

• Clause 7.1 and 8 - transmitter performance: The transmitter tests cover output power, output in non-active transmit state, adjacent-channel power, far-from-carrier emissions, radiated emissions, emissions during BLCH/CLCH linearization, and transmitter intermodulation attenuation. The adjacent-channel tests use offsets of 25 kHz, 50 kHz, and 75 kHz, so the lab can see whether the signal stays inside its allocated channel and whether switching or modulation creates spillover.

• Clause 7.2 and 9 - receiver performance: The receiver tests cover nominal error rates, reference sensitivity, reference interference, blocking, spurious response rejection, intermodulation response rejection, unwanted conducted emissions, and unwanted radiated emissions. Annex A also identifies the receiver cases that require PUEM checks, which is important for speech and data paths where an error may not show up as a simple bad frame.

• Clause 7.3, Clause 10, and Clause 11 - combined performance and uncertainty: The standard also checks modulation accuracy, carrier frequency accuracy, MS receiver performance for synchronization burst acquisition, MS frame alignment performance, and MS link control. Clause 11 requires the measurement uncertainty to be stated in the report and kept within the allowed limits, so a pass/fail decision is based on measured values that are traceable and comparable.

• Annex F - DMO-capable equipment: Equipment capable of DMO has to meet the V+D radio tests with specific exceptions and also pass DMO-specific tests. Annex F adds DMO transmitter output power profile, DMO carrier frequency accuracy, and DM-MS slave synchronization accuracy, which matters because DMO radios have operating modes that are not identical to trunked V+D operation.

What terms does SIST EN 300 394-1 V2.4.1:2006 define?

• Base Station (BS) - The fixed TETRA radio equipment under test, including both transmitter and receiver behavior.
• Mobile Station (MS) - The TETRA terminal under test, such as a handheld or vehicle radio, including its radio and control functions.
• Direct Mode Operation (DMO) - A TETRA operating mode where terminals communicate directly without the trunked network path.
• TETRA Test Connector Interface (TTCI) - The interface used to exchange decoded test data between the MS/BS and the test equipment, either physically or through RF loopback.
• TETRA System Simulator (TSS) - The test-side simulator that acts like a TETRA network during RF loopback and protocol testing.
• Probability of Undetected Erroneous Message (PUEM) - A receiver quality measure used to detect message errors that are not flagged as bad frames.
• Bit Error Rate (BER) - The ratio of bit errors in received data, used to judge receiver and loopback performance.

Who uses SIST EN 300 394-1 V2.4.1:2006?

SIST EN 300 394-1 V2.4.1:2006 is used by manufacturers of TETRA BS, MS, and DMO equipment, by test laboratories that run conformance tests, and by approval or certification teams that review the evidence. It is also useful for quality managers and buyers who need to specify how radio performance will be verified before acceptance.

Typical uses include:

• planning type tests for new equipment
• setting up laboratory test systems and loopback arrangements
• checking transmitter and receiver performance against the stated limits
• recording measurement uncertainty in test reports
• comparing supplier test evidence with procurement or approval requirements

Which standards are used with SIST EN 300 394-1 V2.4.1:2006?

The standard depends on several ETSI and ITU-T references for core TETRA definitions, test procedures, and measurement methods.

• EN 300 392-2 - the main TETRA reference for burst structure, channel types, scrambling, and many detailed performance definitions used throughout the tests.
• EN 300 392-1 - provides the general network design background for the TETRA family.
• EN 300 392-7 - provides the TETRA security reference used in the family of standards.
• ETS 300 392-11-22 and EN 300 392-12-22 - define Dynamic Group Number Assignment (DGNA), which is referenced in the test-mode behavior of MS equipment.
• ITU-T Recommendation O.153 - provides the pseudo-random bit sequence used in some receiver tests.
• EN 300 113-1 - provides the radiated-emissions measurement arrangement and test-site requirements.
• EN 300 395-4 - provides the air-interface method for speech codec testing referenced in Annex D and Annex E.
• ETS 300 396-1, EN 300 396-2, and EN 300 396-3 - provide the DMO capability definitions and requirements used by Annex F.
• ETR 028 - is referenced for measurement uncertainty practice and interpretation.

What does the SIST EN 300 394-1 V2.4.1:2006 document contain?

The document contains a functional RF test configuration, detailed transmitter and receiver measurement methods, and the uncertainty rules needed to judge results. It also contains tables that define burst content, receiver test cases, minimum sample sizes, and DMO-specific exceptions and extra measurements.

Annex C and Annex D are particularly practical: Annex C defines the TTCI message structure and interface behavior, while Annex D defines the RF loopback protocol, PDU formats, and test scenarios. Clause 10.5 includes Table 10.1 for MS link-control test cases, and Annex A includes tables that tell the lab which channel types, propagation conditions, signal levels, and interferer levels to use.

SLOVENSKI STANDARD
01-junij-2006
Prizemni snopovni radio (TETRA) – Specifikacija za preskušanje skladnosti – 1.
del: Radio
Terrestrial Trunked Radio (TETRA); Conformance testing specification; Part 1: Radio
Ta slovenski standard je istoveten z: EN 300 394-1 Version 2.4.1
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)

Terrestrial Trunked Radio (TETRA);
Conformance testing specification;
Part 1: Radio
2 ETSI EN 300 394-1 V2.4.1 (2006-02)

Reference
REN/TETRA-03145
Keywords
DMO, TETRA, V+D
ETSI
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Siret N° 348 623 562 00017 - NAF 742 C
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ETSI
3 ETSI EN 300 394-1 V2.4.1 (2006-02)
Contents
Intellectual Property Rights.9
Foreword.9
1 Scope.10
2 References.10
3 Definitions, symbols and abbreviations .11
3.1 Definitions.11
3.2 Symbols.11
3.3 Abbreviations.12
4 General.12
4.1 Presentation of equipment for testing purposes.12
4.1.1 Facilities and information required for testing.12
4.1.2 Choice of radio frequency channels to be tested.13
4.1.3 Interpretation of the measurement results.13
4.2 Mechanical and electrical design.14
4.2.1 General.14
4.2.2 Controls.14
4.2.3 Marking.14
5 Radio test configuration, test signals and test modes .14
5.1 General functional radio test configuration .14
5.2 Radio test modes.15
5.2.1 Test receive mode.15
5.2.1.1 MS test receive mode.15
5.2.1.2 BS test receive mode.15
5.2.2 Test transmit mode.16
5.2.2.1 MS testing.16
5.2.2.2 Void.17
5.2.2.3 BS testing.17
5.3 Radio test signals.17
5.3.1 General.17
5.3.2 Test signal T1 (TETRA wanted signal) .17
5.3.2.1 MS testing.17
5.3.2.2 BS testing.18
5.3.2.3 Void.19
5.3.2.4 Void.19
5.3.3 Test signal T2 (TETRA interferer) .19
5.3.4 Test signal T3 (unmodulated interferer) .19
6 Test conditions.19
6.1 General.19
6.2 Power sources and ambient conditions.19
6.2.1 Normal test conditions .20
6.2.2 Extreme test conditions.20
6.3 Procedure for tests at extreme temperatures.21
6.3.1 Equipment designed for continuous operation.21
6.3.2 Equipment designed for intermittent operation.21
7 Technical characteristics.22
7.1 Transmitter parameter definitions and limits.22
7.1.1 Transmitter output power.22
7.1.1.1 Definition.22
7.1.1.2 Limit values.22
7.1.2 Unwanted output power in non-active transmit state.22
7.1.2.1 Definition.22
7.1.2.2 Limit values.22
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4 ETSI EN 300 394-1 V2.4.1 (2006-02)
7.1.3 Adjacent channel power due to modulation.23
7.1.3.1 Definition.23
7.1.3.2 Limit values.23
7.1.4 Adjacent channel power due to switching transients .23
7.1.4.1 Definition.23
7.1.4.2 Limit values.24
7.1.5 Unwanted emissions far from the carrier.24
7.1.5.1 Definition.24
7.1.5.2 Limit values.24
7.1.6 Unwanted radiated emissions .25
7.1.6.1 Definition.25
7.1.6.2 Limit values.25
7.1.7 Unwanted emissions during the BLCH/CLCH (linearization) .25
7.1.7.1 Definition.25
7.1.7.2 Limit values.25
7.1.8 Transmitter intermodulation attenuation.25
7.1.8.1 Definition.25
7.1.8.2 Limit values.26
7.1.8.2.1 MS Limit values.26
7.1.8.2.2 Limit values for single BS transmitter.26
7.1.8.2.3 Limit values for intra BS intermodulation.26
7.2 Receiver parameter definitions and limits .26
7.2.1 General.26
7.2.2 Nominal error rates .27
7.2.2.1 Definition.27
7.2.2.2 Limit values.27
7.2.3 Reference sensitivity performance.27
7.2.3.1 Definition.27
7.2.3.2 Limit values.27
7.2.4 Reference interference performance .28
7.2.4.1 Definition.28
7.2.4.2 Limit values.28
7.2.5 Blocking characteristics.28
7.2.5.1 Definition.28
7.2.5.2 Limit values.29
7.2.6 Spurious response rejection .29
7.2.6.1 Definition.29
7.2.6.2 Limit values.29
7.2.7 Intermodulation response rejection.29
7.2.7.1 Definition.29
7.2.7.2 Limit values.29
7.2.8 Unwanted conducted emissions.30
7.2.8.1 Definition.30
7.2.8.2 Limit values.30
7.2.9 Unwanted radiated emissions .30
7.2.9.1 Definition.30
7.2.9.2 Limit values.30
7.3 Transmitter/receiver parameter definitions and limits.30
7.3.1 Modulation accuracy.30
7.3.1.1 Definition.30
7.3.1.2 Limit values.30
7.3.2 Carrier frequency accuracy.30
7.3.2.1 Definition.30
7.3.2.2 Limit values.31
7.3.3 MS receiver performance for synchronization burst acquisition .31
7.3.3.1 Definition.31
7.3.3.2 Limit values.31
7.3.4 MS Frame alignment performance .31
7.3.4.1 Definition.31
7.3.4.2 Limit values.31
7.3.5 MS link control .32
7.3.5.1 Definition.32
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5 ETSI EN 300 394-1 V2.4.1 (2006-02)
7.3.5.2 Limit values.32
8 Methods of measurement for transmitter parameters.33
8.1 Transmitter output power .33
8.1.1 MS transmitter output power .33
8.1.2 BS transmitter output power .34
8.2 Unwanted output power in non active transmit state.34
8.3 Adjacent channel power due to modulation .34
8.4 Adjacent channel power due to switching transients.35
8.5 Unwanted emissions far from the carrier .35
8.6 Unwanted radiated emissions .36
8.7 Unwanted emissions during the BLCH/CLCH (linearization).36
8.7.1 MS unwanted emissions during the CLCH (linearization) .36
8.7.2 BS unwanted emissions during the BLCH (linearization).37
8.8 Transmitter intermodulation attenuation .37
8.8.1 MS Transmitter intermodulation attenuation.37
8.8.2 BS Transmitter intermodulation attenuation.37
8.8.3 Intra BS transmitter intermodulation attenuation.38
9 Methods of measurement for receiver parameters .38
9.1 General.38
9.2 Nominal error rates.38
9.2.1 MS nominal error rate.38
9.2.2 BS nominal error rate.38
9.3 Reference sensitivity performance .38
9.3.1 MS reference sensitivity performance .39
9.3.2 BS reference sensitivity performance .39
9.3.3 PUEM performance.39
9.4 Reference interference performance.39
9.4.1 MS reference interference performance.39
9.4.2 BS reference interference performance.40
9.5 Blocking characteristics.40
9.5.1 MS blocking.40
9.5.2 BS blocking.41
9.6 Spurious response rejection.41
9.7 Intermodulation response rejection .41
9.7.1 MS intermodulation response rejection .41
9.7.2 BS intermodulation response rejection .41
9.8 Unwanted emissions.42
9.9 Unwanted radiated emissions .42
10 Methods of measurement for transmitter/receiver parameters.43
10.1 Modulation accuracy.43
10.1.1 MS modulation accuracy.43
10.1.2 BS modulation accuracy.43
10.1.3 Vector error magnitude at symbol time .43
10.2 Carrier frequency accuracy.43
10.2.1 MS carrier frequency accuracy .44
10.2.2 BS carrier frequency accuracy.44
10.3 MS receiver performance for synchronization burst acquisition.45
10.4 MS Frame alignment performance.45
10.5 MS link control.46
11 Measurement uncertainty.47
11.1 Transmitter.47
11.2 Receiver.50
11.3 Transmitter/receiver parameter definitions and limits.52
11.4 Interpretation of measurement results .53
Annex A (normative): TETRA receiver testing.54
A.1 Frequencies of spurious response.54
A.2 Test cases and test conditions for BS and MS receivers .54
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6 ETSI EN 300 394-1 V2.4.1 (2006-02)
A.3 Test signal T1, content of BSCH and BNCH/T .58
Annex B (normative): Radio test system functions.60
B.1 Test transmitter and receiver .60
B.1.1 General.60
B.1.2 Sampling system.60
B.1.2.1 General.60
B.1.2.2 TETRA filter.60
B.1.2.3 Adjacent channel power measurements.61
B.1.2.4 Modulation accuracy measurements.61
B.1.2.5 Measurement of unwanted output power in the non-active transmit state.61
B.1.3 Spectrum analyser.61
B.1.4 Error rate tester.61
B.1.5 Test signal requirements.62
B.1.5.1 On channel test signal T1.62
B.1.5.2 Interfering test signal T2.62
B.1.5.3 Interfering test signal T3.62
B.1.6 Propagation simulators.63
B.1.7 Timing measurement unit.63
B.1.8 Passive test system components .63
B.1.9 Test system controller .63
Annex C (normative): TETRA Test Connector Interface (TTCI) .64
C.1 General.64
C.2 Formal aspects.65
C.3 TTCI, layer 1.65
C.3.1 Mechanical and Electrical Characteristics.65
C.3.2 Transmission and Reception Characteristics.65
C.4 TTCI, Layer 2.66
C.4.1 General Structure.66
C.4.2 Frame Structure .66
C.4.3 Flow of I-frames on Layer 2.67
C.4.3.1 Transmission of Frames.67
C.4.3.2 Reception of frames.67
C.4.3.3 Parameters on Layer 2 .67
C.5 TTCI, Layer 3.68
C.5.1 Message structure.68
C.5.2 Definitions of the Messages .68
C.5.2.1 DATO .68
C.5.2.1.1 Test equipment error handling .69
C.5.2.2 Bi-directional operation of the TTCI .70
C.5.2.3 Codec conformance testing.70
C.5.2.4 ST indicator.71
C.6 Control of MS/BS.71
C.6.1 Manual intervention of MS/BS .71
C.6.2 Bi-directional operation of the test interface .71
C.6.3 MS controlled by T1.71
C.7 Characteristics of the interface .71
C.7.1 Mechanical characteristics of the interface.71
C.7.2 Electric characteristics of the interface.72
C.8 Codec conformance testing using the TTCI.72
C.8.1 Codec conformance test methodology using the TTCI .72
Annex D (normative): RF Test Facility using RF Loop Back.74
D.1 Introduction to the TETRA Test (TT) protocol for RF loop back test.75
D.1.1 Outline requirements.75
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7 ETSI EN 300 394-1 V2.4.1 (2006-02)
D.1.2 Test Modes.76
D.1.3 Switching for loop back test mode .77
D.2 TETRA Test Entity.77
D.3 TETRA RF loop back test protocol.78
D.3.1 Setting the TETRA MS into TETRA Test mode.78
D.3.2 TETRA TEST protocol .79
D.3.2.1 Confirming that TETRA TEST MODE is set.79
D.3.2.2 Operating TETRA loop back.80
D.3.2.3 Ending TETRA Test mode .80
D.3.3 Bad frame indication .80
D.3.4 Channels required to be looped back.81
D.3.5 TETRA loop back test scenarios .81
D.4 TETRA Test (TT) PDU descriptions .82
D.4.1 TT PDU description tables downlink .82
D.4.1.1 D-LOOP COMMAND.82
D.4.1.2 D-OPEN LOOP COMMAND .82
D.4.1.3 D-TEST MODE CONFIRM COMMAND.82
D.4.1.4 D-TEST MODE END COMMAND .83
D.4.2 TT PDU description tables uplink.83
D.4.2.1 U-LOOP CONFIRM.83
D.4.2.2 U-OPEN LOOP CONFIRM .83
D.4.2.3 U-TEST MODE CONFIRM.84
D.4.2.4 U-TEST MODE END CONFIRM.84
D.4.3 Information elements coding.84
D.4.3.1 Loopback type.84
D.4.3.2 Confirm.85
D.4.3.3 MS power class.85
D.4.3.4 PDU.85
D.4.3.5 Receiver class.86
D.5 TT use of MLE, LLC and MAC.86
D.6 Message sequence charts and operation of TETRA loop back .87
D.7 Introduction to the T1 Test Mode for RF loop back test.87
D.7.1 Outline requirements.87
D.7.2 T1 Test Modes.87
D.7.3 Switching for loop back test mode .88
D.8 TETRA RF loop back T1 test mode.89
D.8.1 Setting TETRA equipment into T1 test mode .89
D.8.2 T1 loop back test mode operation.89
D.8.3 Logical channels to be looped back.90
D.8.4 Return channel for logical channel loop back .90
D.8.4.1 Type 1: TCH/7,2 + AACH .91
D.8.4.2 Type 2: SCH/F + AACH .
...