gsm 11-10 test procedures

101452AMarch 30, 2001

Selected Transmitter/Receiver TestProcedures from the GSM 11.10-1Specification

Test Procedure

Conexant Proprietary

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Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Contents

101452A Conexant Proprietary iMarch 30, 2001

Contents

1. Introduction........................................................................................................... 1-1

2. Transceiver............................................................................................................ 2-12.1 Spurious Emissions Tests ......................................................................................2-1

2.1.1 Equipment Setup ....................................................................................................... 2-12.1.2 Measure Spurious Emissions below the Tx Band Test Procedures.......................... 2-22.1.3 Measure Spurious Emissions inside the Tx Band Test Procedures.......................... 2-32.1.4 Measure Spurious Emissions above the Tx Band Test Procedures ......................... 2-3

2.2 Mobile Station-in-Idle Mode Test ............................................................................2-42.2.1 Equipment Setup ....................................................................................................... 2-52.2.2 Test Procedures ........................................................................................................ 2-5

3. Transmitter ............................................................................................................ 3-13.1 Phase Error and Frequency Error Test ..................................................................3-1

3.1.1 Equipment Setup ....................................................................................................... 3-13.1.2 Test Procedures ........................................................................................................ 3-2

3.2 Output Power Test .................................................................................................3-23.2.1 Equipment Setup ....................................................................................................... 3-23.2.2 Test Procedures ........................................................................................................ 3-3

3.3 Output Burst Timing Test .......................................................................................3-43.3.1 Equipment Setup ....................................................................................................... 3-43.3.2 Test Procedures ........................................................................................................ 3-5

3.4 Output RF Spectrum Due to Modulation Test.........................................................3-53.4.1 Equipment Setup ....................................................................................................... 3-53.4.2 Test Procedures ........................................................................................................ 3-6

3.5 Output RF Spectrum Due to Switching Transient Test ...........................................3-83.5.1 Equipment Setup ....................................................................................................... 3-83.5.2 Test Procedures ........................................................................................................ 3-9

3.6 Receive Band Noise Tests ................................................................................... 3-113.6.1 Equipment Setup ..................................................................................................... 3-113.6.2 Measure GSM Rx Band Noise While in GSM Tx Mode Test Procedures............... 3-123.6.3 Measure DCS Rx Band Noise While in GSM Tx Mode Test Procedures ............... 3-133.6.4 Measure DCS Rx Band Noise While in DCS Tx Mode Test Procedures ................ 3-143.6.5 Measure GSM Rx Band Noise While in DCS Tx Mode Test Procedures ............... 3-14

3.7 Intermodulation Attenuation Test ......................................................................... 3-153.7.1 Equipment Setup ..................................................................................................... 3-153.7.2 Test Procedures ...................................................................................................... 3-15

4. Receiver................................................................................................................. 4-14.1 Reference Sensitivity Test......................................................................................4-1

4.1.1 Equipment Setup ....................................................................................................... 4-14.1.2 Test Procedures ........................................................................................................ 4-1

4.2 Usable Receiver Input Level Range Test ...............................................................4-34.2.1 Equipment Setup ....................................................................................................... 4-34.2.2 Test Procedures ........................................................................................................ 4-3

4.3 Co-Channel Rejection Test ....................................................................................4-44.3.1 Equipment Setup ....................................................................................................... 4-44.3.2 Test Procedures ........................................................................................................ 4-4

4.4 Adjacent Channel Rejection Test: Speech Channels ............................................4-54.4.1 Equipment Setup ....................................................................................................... 4-54.4.2 Test Procedures ........................................................................................................ 4-6

Contents Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

ii Conexant Proprietary 101452AMarch 30, 2001

4.5 Intermodulation Rejection Test: Speech Channels................................................. 4-74.5.1 Equipment Setup........................................................................................................4-74.5.2 Test Procedures.........................................................................................................4-8

4.6 Blocking and Spurious Response Test: Speech Channels..................................... 4-84.6.1 Equipment Setup........................................................................................................4-84.6.2 Test Procedures.........................................................................................................4-9

4.7 Received Signal Strength Measurement Tests .................................................... 4-114.7.1 Equipment Setup......................................................................................................4-114.7.2 Relative Accuracy of Rx Level Measurements on Different ARFCNs

Test Procedures.......................................................................................................4-124.7.3 Relative Accuracy of Rx Level Measurements on a Single ARFCN

Test Procedures.......................................................................................................4-144.7.4 Absolute Accuracy of Rx Level Measurements on Different ARFCNs

Test Procedures.......................................................................................................4-17

Appendix A. Acronyms................................................................................................... A-i

Appendix B. Glossary..................................................................................................... B-i

Appendix C. Allocated Radio Frequency Channel Number ........................................ C-i

Appendix D. Extreme Conditions .................................................................................. D-i

Appendix E. Channel Numbers...................................................................................... E-i

Appendix F. Propagation Conditions.............................................................................F-i

Appendix G. Output Power. ...........................................................................................G-i

FiguresFigure 2-1. Conducted Spurious Emissions (Mobile Station Allocated a Channel) Test Block Diagram........ 2-1Figure 2-2. Conducted Spurious Emissions (Mobile Station-in-Idle Mode) Test Block Diagram.................... 2-5Figure 3-1. Frequency Error and Phase Error Test Block Diagram ................................................................ 3-1Figure 3-2. Normal Duration of Tx Burst Time Mask ...................................................................................... 3-4Figure 3-3. Transmitter Output Power Test Block Diagram............................................................................ 3-5Figure 3-4. Level Shifter Circuit Drawing ........................................................................................................ 3-6Figure 3-5. Modulation Spectrum – Gated Measurement............................................................................... 3-7Figure 3-6. Spectrum Due to Switching Transients ...................................................................................... 3-10Figure 3-7. Receive Band Noise Measurement Test Block Diagram ........................................................... 3-11Figure 3-8. GSM Rx Band Measured Noise While in GSM Tx Mode ........................................................... 3-13Figure 3-9. DCS Intermodulation Attenuation Measurement Test Block Diagram ....................................... 3-16Figure 4-1. Reference Sensitivity Test Block Diagram ................................................................................... 4-1Figure 4-2. Usable Receiver Input Range Test Block Diagram ...................................................................... 4-3Figure 4-3. Co-Channel Rejection Test Block Diagram .................................................................................. 4-4Figure 4-4. Intermodulation Rejection Test Block Diagram ............................................................................ 4-7Figure 4-5. Blocking Test Block Diagram........................................................................................................ 4-9Figure 4-6. Rx Level Reporting Test Block Diagram..................................................................................... 4-11

TablesTable 2-1. Measurement Bandwidths for Spurious Emissions below the Tx Band......................................... 2-2Table 2-2. Spurious Emission Limits............................................................................................................... 2-3Table 2-3. Measurement Bandwidths for Spurious Emissions inside The Tx Band ....................................... 2-3Table 2-4. Measurement Bandwidths for Spurious Emissions above The Tx Band....................................... 2-4Table 2-5. Measurement Bandwidths for Spurious Emissions in Idle Mode................................................... 2-6

Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Contents

101452A Conexant Proprietary iiiMarch 30, 2001

Table 2-6. Spurious Emission Limits in Idle Mode...........................................................................................2-6Table 3-1. GSM and DCS Power Levels .........................................................................................................3-3Table 3-2. Modulation Spectrum Limits ...........................................................................................................3-6Table 3-3. GSM Wide-Band Modulation Spectrum Limits...............................................................................3-8Table 3-4. DCS Wide-Band Modulation Spectrum Limits ...............................................................................3-8Table 3-5. GSM900 Spectrum Due to Switching Transients ...........................................................................3-9Table 3-6. DCS1800 Spectrum Due to Switching Transients........................................................................3-10Table 3-7. Limits For Noise in Rx Bands .......................................................................................................3-12Table 4-1. Limits For GSM Sensitivity .............................................................................................................4-2Table 4-2. Limits For DCS Sensitivity..............................................................................................................4-2Table 4-3. Limits For Usable Receiver Input Level..........................................................................................4-4Table 4-4. Limits For Co-Channel Performance..............................................................................................4-5Table 4-5. Limits For Adjacent Channel Performance ....................................................................................4-7Table 4-6. Limits For Intermodulation Performance........................................................................................4-8Table 4-7. Blocking Interferer Frequency and Amplitude, Part I....................................................................4-10Table 4-8. Blocking Interferer Frequency and Amplitude, Part II...................................................................4-10Table 4-9. Allowable BER Measurement Exception......................................................................................4-11Table 4-10. Limits for GSM and DCS Relative Rx Level Performance .........................................................4-12Table 4-11. Limits For Both Bands Relative Rx Level Performance .............................................................4-14Table 4-12. Limits For Relative Rx Level Performance on a Single ARFCN (Window 1)

(RXLEV = 1 to 21) ..................................................................................................................................4-14Table 4-13. Limits For Relative Rx Level Performance on a Single ARFCN (Window 2)

(RXLEV = 11 to 31) .................................................................................................................................4-15Table 4-14. Limits For Relative Rx Level Performance on a Single ARFCN (Window 3)

(RXLEV = 21 to 41) .................................................................................................................................4-16Table 4-15. Limits For Relative Rx Level Performance on a Single ARFCN (Window 4)

(RXLEV = 31 to 51) (1 of 2).....................................................................................................................4-16Table 4-16. Limits For Relative Rx Level Performance on a Single ARFCN (Window 5)

(RXLEV = 41 to 61) .................................................................................................................................4-17Table 4-17. Limits For Absolute Rx Level Performance................................................................................4-18Table C-1. ARFCN Selection Criteria ...............................................................................................................C-iTable D-1. Temperature and Voltage Test Conditions.....................................................................................D-iTable E-1. Relationship between MS Channel Numbers and Carrier Frequencies .........................................E-iTable F-1. Typical Profile Conventions.............................................................................................................F-iTable F-2. ARFCN Range Test Profiles ...........................................................................................................F-iTable G-1. MS Maximum Output Power and Lowest Control Level ................................................................ G-iTable G-2. GSM900 Nominal Output Power and Tolerance Conditions ......................................................... G-iTable G-3. GSM Nominal Output Power and Tolerance Conditions ...............................................................G-iiTable G-4. PCS1900 Nominal Output Power and Tolerance Conditions ........................................................G-ii

Contents Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

iv Conexant Proprietary 101452AMarch 30, 2001

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Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Introduction

101452A Conexant Proprietary 1-1March 30, 2001

1. IntroductionThe purpose of this document is to describe the equipment setups and test proceduresused to perform selected transceiver, transmitter, and receiver tests in compliancewith the Global System for Mobile communications (GSM) 11.10-1 specification.This document is intended to describe a subset of RF tests needed to establish anacceptable level of performance for a dual-band radio to prepare for Type Approval(TA) testing. The tests described in this document are not a complete list of tests toachieve TA certification.

This document includes tests applicable to both GSM900 and Digital Cellular System(DCS)1800 specifications.

Introduction Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

1-2 Conexant Proprietary 101452AMarch 30, 2001

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Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Transceiver


2. TransceiverThis section describes the latest equipment requirements and test procedures for thefollowing GSM radio transceiver tests:

• Spurious Emissions Tests Measurement of Spurious Emissions below the Tx Band, see Section 2.1.2. Measurement of Spurious Emissions inside the Tx Band, see Section 2.1.3. Measurement of Spurious Emissions above the Tx Band, see Section 2.1.4.

• Mobile Station-in-Idle Mode Test, see Section 2.2.

2.1 Spurious Emissions Tests

The purpose of these tests is to verify that no spurious signals are emitted by theradio that may disrupt the normal operation, or be harmful to other electronicdevices. When the Mobile Station (MS) has been allocated a channel, conductedspurious emissions are spurs present at the antenna connector at frequencies otherthan the carrier and sidebands associated with normal modulation.

Refer to GSM 11.10-1, section 12.1.

2.1.1 Equipment Setup

The setup for the Hewlett Packard (HP)8922M Test Set and other equipmentrequired for this test is shown in Figure 2-1. Measurements are made in the 100 kHzto 12.75 GHz frequency range.

Device Under Test(DUT) Directional Coupler/

Splitter

HP8922MGSM/DCSTest Set

101452A 2-1_010501

50 W3 dB pad

HP/LP/NotchFilter

SpectrumAnalyzer

Figure 2-1. Conducted Spurious Emissions (Mobile Station Allocated a Channel) Test Block DiagramThe Device Under Test (DUT) antenna connector is connected to the test set throughthe directional coupler. The coupler must have at least a 10 dB coupling factor andan upper limit of at least 2 GHz. For frequencies above the coupler limit, a powersplitter can be used.

The coupler forward path output is connected to a spectrum analyzer. Spuriousemissions are monitored through the following two devices:

• A 3 dB pad with an attenuation of 3 dB or greater. Used to provide an acceptablematch for the coupler.

• A filter. Used to reject the carrier signal level. This increases the spectrumanalyzer dynamic range.

Transceiver Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification


This test is performed at one channel midway in the Absolute Radio FrequencyChannel Number (ARFCN) range in each band, see Appendix C, at temperature andsupply voltage extremes, see Appendix D.

Spurious emission measurements consist of three measurements, which are describedbelow:

• Measurement of spurs below the relevant TX band.• Measurement of spurs inside the relevant TX band.• Measurement of spurs above the relevant TX band.

2.1.2 Measure Spurious Emissions below the Tx Band Test Procedures

For spurious measurements below the Tx band, a directional coupler is used asshown in Figure 2-1. For a spectrum analyzer with 80 dB of dynamic range, a lowpass filter may also be needed to improve the measurement noise floor. The low passfilter should be able to pass frequencies from 100 kHz up to the low side of thetransmit band edge for both GSM and DCS. The rejection at the transmit frequency,that is, GSM = 902.4 MHz, DCS = 1747.6 MHz, should be at least 10 dB.

1. Calibrate the path loss from the DUT antenna connection to the input of thespectrum analyzer at the frequencies of interest according to Table 2-1.

2. Calibrate the path loss from the DUT antenna port connection to the HP8922Minput.

3. Compensate for this loss by entering an offset in the HP8922M configurationscreen.

4. Add this loss as a negative number.5. Initiate a call using the HP8922M.6. Set the channel to 62, that is, GSM = 902.4 MHz, or channel 699, that is, DCS =

1747.6 MHz.7. Set the HP8922M to power level 5 for GSM, or power level 0 for DCS.8. Set the spectrum analyzer resolution and video bandwidths (BWs) according to

the frequency ranges specified in Table 2-1.9. Using the spectrum analyzer “MAX HOLD” function, step through the defined

frequency ranges in Table 2-1.10. Search for any peaks at or above Table 2-2 limits.

Table 2-1. Measurement Bandwidths for Spurious Emissions below the Tx Band1

Frequency Ranges Offset FromEdge of Relevant

Tx Band

ResolutionBandwidth

VideoBandwidth

100 kHz to 50 MHz 10 kHz 30 kHz50 to 500 MHz 100 kHz 300 kHzGSM: 500 MHz to 880 MHzDCS: 500 MHz to 1710 MHz(excludes 925 to 960 MHz)

0 to 10 MHz≥ 10 MHz≥ 20 MHz≥ 30 MHz

100 kHz300 kHz1 MHz3 MHz

300 kHz1 MHz3 MHz3 MHz

1 ETSI 2000. Further use, modification, redistribution is strictly prohibited. Thestandards are available from http://www.etsi.org/eds/eds.htm and [email protected].



Table 2-2. Spurious Emission Limits2

Limit Level (dBm)Frequency Range GSM900 DCS1800

100 kHz to 1 GHz – 36 – 361 GHz to 1710 MHz – 30 – 301710 MHz to 1785 MHz – 30 – 361785 MHz to 12.75 GHz – 30 – 30

2.1.3 Measure Spurious Emissions inside the Tx Band Test Procedures

For spurious measurements in the Tx band, a directional coupler is used as shown inTable 2-1. When using a spectrum analyzer with 80 dB of dynamic range, a notchfilter may also be needed to improve the noise floor of the measurement. The notchfilter should have at least 10 dB of rejection at the carrier frequency and should benarrow enough so that the signal level at ± 1.8 MHz away from the carrier is notsubstantially attenuated.

1. Calibrate the path loss from the DUT antenna connection to the input of thespectrum analyzer at the frequencies of interest according to Table 2-3.

2. Calibrate the path loss from the antenna port connection of the DUT to the inputof the HP8922M.


4. Add this loss as a negative number.5. Initiate a call using the HP8922M.6. Set the channel to 62, that is, GSM = 902.4 MHz, or channel 699, that is, DCS =

1747.6 MHz.7. Set the HP8922M to power level 5 for GSM or power level 0 for DCS.8. Set the spectrum analyzer resolution and video BWs according to the frequency

ranges specified in Table 2-3.9. Using the spectrum analyzer “MAX HOLD” function, step through the defined

frequency ranges in Table 2-3.10. Search for any peaks at or above Table 2-2 limits.

Table 2-3. Measurement Bandwidths for Spurious Emissions inside The Tx Band2

Frequency Range Offset From Edge ofRelevant Tx Band

ResolutionBandwidth

VideoBandwidth

GSM 880 to 915 MHz 1.8 to 6.0 MHz>6.0 MHz (offset from carrier)

30 kHz100 kHz

100 kHz300 kHz

DCS 1710 MHz to 1785 MHz 1.8 to 6.0 MHz>6.0 MHz (offset from carrier)

30 kHz100 kHz

100 kHz300 kHz

2.1.4 Measure Spurious Emissions above the Tx Band Test Procedures

For spurious measurements above the Tx band, a directional coupler is used as shownin Figure 2-1. When using a spectrum analyzer with 80 dB of dynamic range, a high




pass filter may also be needed to improve the noise floor of the measurement. Thehigh pass filter should be able to pass frequencies from the high side of the transmitband edge to 12.75 GHz. The rejection at the transmit frequency, that is, GSM =902.4 MHz, DCS = 1747.6 MHz, should be at least 10 dB.

Note: The frequency ranges of 925 MHz and 1805 MHz to 1880 MHz areexcluded in this test. These ranges are tested in the procedures described inSection 3 of this document.

The following test procedures apply:

1. Calibrate the path loss from the DUT antenna connection to the spectrumanalyzer input at the frequencies of interest according to Table 2-4.

2. Calibrate the path loss from the antenna port connection of the DUT to the inputof the HP8922M.


4. Add this loss should as a negative number.5. Initiate a call using the HP8922M.6. Set the channel to 62, that is, GSM = 902.4 MHz, or channel 699, that is, DCS =

1747.6 MHz.7. Set the HP8922M to power level 5 for GSM or power level 0 for DCS.8. Set the spectrum analyzer resolution and video BWs according to the frequency

ranges specified in Table 2-4.9. If the maximum frequency of operation for the coupler is less than 12.75 GHz, a

splitter should be used.10. Re-calibrate the system at this point.11. Using the “MAX HOLD” function on the spectrum analyzer, step through the

defined frequency ranges in Table 2-4.12. Search for any peaks at or above the specifications in Table 2-2.

Table 2-4. Measurement Bandwidths for Spurious Emissions above The Tx Band3

Frequency Range ResolutionBandwidth (MHz)

Video Bandwidth(MHz)

GSM 960 MHz to 12.75 GHz(exclude 1805 to 1880 MHz)

3 3

DCS 1880 MHz to 12.75 GHz 3 3

2.2 Mobile Station-in-Idle Mode Test

This test verifies that no spurious signals are emitted by the radio that may disrupt thenormal operation, or be harmful to other electronic devices. Conducted spuriousemissions are any emissions from the antenna port connection when the MS is in theidle mode.






The Hewlett Packard HP8922M GSM/DCS Test Set and other equipment requiredfor this test are setup as shown in Figure 2-2. This test is performed on one channel ineach band, and at temperature and supply voltage extremes.

Device Under Test(DUT) Directional Coupler/

Splitter


101452A 2-2_010501

50 WSpectrumAnalyzer

Coupled Port

Figure 2-2. Conducted Spurious Emissions (Mobile Station-in-Idle Mode) Test Block DiagramFor measurements in the frequency range of 100 kHz to 2000 MHz, use thedirectional coupler. For measurements above 2000 MHz, use the power splitterbecause of coupler BW limitations.

2.2.2 Test Procedures

Measurements are made in the frequency range of 100 kHz to 12.75 GHz. The MSmust be in its Mobility Management (MM) state, i.e., idle, updated. Frequencymeasurement time should include the time during which the MS receives a TimeDivision Multiple Access (TDMA) frame containing the paging channel.


1. Calibrate the path loss from the DUT antenna connection to the spectrumanalyzer.

2. Calibrate the path loss from the DUT antenna port connection to the HP8922Minput.

3. Compensate for the loss by entering an offset in the HP8922M configurationscreen.

4. The loss should be added as a negative number.5. Set the spectrum analyzer filter BW for the different frequency ranges according

to Table 2-5.6. Record measurements while the phone has acquired service, but not in a call.

Note: The Broadcast Control Channel (BCCH) allocation table should be emptyor contain only the serving cell to prevent the radio from scanning.

7. While using the spectrum analyzer “MAX HOLD” function, step through thedefined frequency bands in Table 2-5.

8. Search for any peaks greater than or equal to the specifications in Table 2-6.



Table 2-5. Measurement Bandwidths for Spurious Emissions in Idle Mode4

Frequency Range ResolutionBandwidth (kHz)

Video Bandwidth(kHz)

100 kHz to 50 MHz 10 3050 MHz to 12.75 GHz 100 300

Table 2-6. Spurious Emission Limits in Idle Mode4

Frequency Range Limit Level (dBm) Frequency Range Limit Level (dBm)100 kHz to 880 MHz – 57 1000 MHz to 1710 MHz – 47880 MHz to 915 MHz – 59 1710 MHz to 1785 MHz – 53915 MHz to 1000 MHz – 57 1785 MHz to 12.75 GHz – 47


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Transmitter


3. TransmitterThis section describes equipment requirements and test procedures for the followingradio transmitter tests to ensure compliance with all relevant GSM requirements:

• Phase Error and Frequency Error Tests, see Section 3.1• Output Power Test, see Section 3.2• Output Burst Timing Test, see Section 3.3• Output RF Spectrum Due to Modulation Test, see Section 3.4• Output RF Spectrum Due to Switching Transient Test, see Section 3.5• Receive Band Noise Tests

Measure Noise in the GSM Rx Band While in GSM Tx Mode Test, seeSection 3.6.2

Measure Noise in the DCS Rx Band While in GSM Tx Mode Test, seeSection 3.6.3

Measure Noise in the DCS Rx Band While in DCS Tx Mode Test, seeSection 3.6.4

Measure Noise in the GSM Rx Band While in DCS Tx Mode Test, seeSection 3.6.5

• Intermodulation Attenuation Test, see Section 3.7

3.1 Phase Error and Frequency Error Test

The purpose of this test follows:

• To verify that the radio transmit frequency is within ± 0.1 parts per million(ppm) of the base station frequency

• To verify that the phase trajectory of the uplink data is acceptable to maintain aphone call

The following parameters are measured on the transmitted signal:

• Root mean square (RMS)• Frequency error• Peak phase error

Refer to GSM 11.10-1, section 13.1


The DUT antenna port connector is connected to the HP8922M Test Set as shown inFigure 3-1.

Device Under Test(DUT)


101452A 2-3_010501

Figure 3-1. Frequency Error and Phase Error Test Block Diagram

Transmitter Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification


Type Approval requires that frequency errors be tested under multipath conditions.However, this document does not address tests under multipath conditions.Therefore, this test is performed:

• On three channels in both bands• At temperature• At supply voltage extremes• During vibration



1. Initiate a call using the H8922M on a channel in the low-ARFCN range, seeAppendix C.

2. Select the “PHASE FRQ” option on the Cell Status Screen.3. Select Multi-burst “ON.”4. Enter “20,” for burst wanted.

Note: This averages the phase and frequency error over 20 bursts.

Note: The MS carrier frequency must be accurate to within ± 0.1 ppm, that is,within ± 89 Hz for the GSM lowest channel, within ± 171 Hz for the DCSlowest channel. The RMS phase error for each burst must not be greaterthan 5 degrees. The maximum peak deviation during the useful part of eachburst must not be greater than 20 degrees.

5. Repeat these measurements for a channel in the mid- and high-ARFCN range,see Appendix C, as well as at temperature and supply voltage extremes, seeAppendix D, and during vibration.

3.2 Output Power Test

This test verifies that the radio output power is at an acceptable level to maintain aphone call. The transmitter output power is the average value of the power deliveredto the antenna over the useful part of the burst.



The DUT antenna port connector is connected to the HP8922M Test Set as shown inFigure 3-1. Power readings are made with the HP8922 Test Set.

Note: It is important that the HP8922M is properly calibrated for output power.The HP8922M is normally accurate to within ± 0.2 dB. The output power isindicated on the cell status screen of the HP8922M under “Peak Power.”The power levels can be adjusted by changing the “TX Level” on the samescreen.

This test is performed at three channels in both bands, and at temperature and supplyvoltage extremes.





1. Calibrate the path loss in the path from the DUT antenna port connection to theinput of the HP8922M, which should include any path loss.

2. Compensate for the loss by entering an offset in the HP8922M configurationscreen.

3. Add this loss as a negative number.4. Initiate a call using the H8922M on a channel in the low-ARFCN range.5. When a call has been successfully made, enter the “Channel” and “TX Level” on

the HP8922M cell status screen.

Note: The measured output power for different control levels should be within thelimits specified in Table 3-1 for GSM and DCS.

6. Repeat these measurements for a channel in the mid and high-ARFCN range,and at temperature and supply voltage extremes.

Table 3-1. GSM and DCS Power Levels5

GSM Power Levels DCS Power LevelsPowerControlLevel

OutputPower(dBm)

ToleranceNormal

(dB)

ToleranceExtreme

(dB)

PowerControlLevel

OutputPower(dBm)

ToleranceNormal

(dB)

ToleranceExtreme

(dB)5 33 ± 2 ± 2.5 0 30 ± 2 ± 2.56 31 ± 3 ± 4.0 1 28 ± 3 ± 4.07 29 ± 3 ± 4.0 2 26 ± 3 ± 4.08 27 ± 3 ± 4.0 3 24 ± 3 ± 4.09 25 ± 3 ± 4.0 4 22 ± 3 ± 4.0

10 23 ± 3 ± 4.0 5 20 ± 3 ± 4.011 21 ± 3 ± 4.0 6 18 ± 3 ± 4.012 19 ± 3 ± 4.0 7 16 ± 3 ± 4.013 17 ± 3 ± 4.0 8 14 ± 3 ± 4.014 15 ± 3 ± 4.0 9 12 ± 4 ± 5.015 13 ± 3 ± 4.0 10 10 ± 4 ± 5.016 11 ± 5 ± 6.0 11 8 ± 4 ± 5.017 9 ± 5 ± 6.0 12 6 ± 4 ± 5.018 7 ± 5 ± 6.0 13 4 ± 4 ± 5.019 5 ± 5 ± 6.0 14 2 ± 5 ± 6.0

15 0 ± 5 ± 6.0




3.3 Output Burst Timing Test

This test verifies that the radio transmitter remains within its allowed time slot so thatit does not disrupt another user who may be on an adjacent time slot. Transmit bursttiming is the envelope of the transmitted RF power with respect to time.



The DUT antenna port connector is connected to the HP8922M Test Set. Test setupis shown in Figure 3-1. The measurement results are made with the HP8922M TestSet. The power versus time trajectory must fit within the template defined inGSM 05.05, see Figure 3-2. This test is performed at three channels in each band,and at temperature and supply voltage extremes.

N o te 1 . F or G S M 900 : -59 dB c o r -54 dB m , w h ichever is h igher, except fo r the tim e s lo t preced ing the ac tive s lo t, fo r w h ich thevalue is -36 dB m .F or D C S 1800 : -48 dB c or -48 dB m , w hichever is h igher.

N o te 2 . F or G S M 900 : -4 dB c fo r power con tro l leve l 16 , -2 dB c for pow er con tro l leve l 17, -1 dB c fo r pow er contro l leve l 18 and 19.N o te 3 . F or G S M 900 : -30 dB c o r -17 dB m , w hichever is h igher.

101452A 3 -1_010501

+ 4

+ 1- 1

- 6

- 30N o te 3 .

N o te 1 .

N o te 2 .

(1 47 b its )

1 0 µµµµ s 8 µµµµ s 1 0 µµµµ s 7 05 6 /13 (5 42 .8 ) µµµµ s

d B

1 0 µµµµ s 8 µµµµ s 1 0 µµµµ s t

Figure 3-2. Normal Duration of Tx Burst Time Mask6






1. Calculate the HP8922M calibration factor, which should include any path lossfrom the DUT antenna port connection to the HP8922M input.


3. Add the loss as a negative number.4. Initiate a call using the H8922M on a channel in the low-ARFCN range.5. When a call is successful, select “PWR RAMP” on the HP8922M cell status

screen.6. Select “Rise Edge” or “Fall Edge” under View to view the top 40 dB portion of

the burst, Look for signal variations outside of the time mask template.7. Select “Pulse Rise” or “Pulse Fall” on the same screen under View to view the

lower portion of the ramp. Look for signal variations outside of the time masktemplate.

8. Repeat this test for all power levels, three channels, and at temperature andsupply voltage extremes.

3.4 Output RF Spectrum Due to Modulation Test

This test verifies that the radio transmitter remains within its allowed BW so that itdoes not disrupt another user who may be within nine channels. The output radiofrequency (RF) spectrum due to modulation is the relationship between the frequencyoffset from the carrier and the power, measured in a specified bandwidth and time,produced by the MS due to the effects of modulation. This test is performed on threechannels, and at temperature and supply voltage extremes.



The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 3-3. A schematic diagram of the Level Shifter, locatedbetween the DUT and the spectrum analyzer, is shown in Figure 3-4.

Device Under Test(DUT) Directional Coupler


101452A 3-3_010501

50 ΩLevel Shifter

SpectrumAnalyzer

External Trigger Coupled Port

TX_EN2

Figure 3-3. Transmitter Output Power Test Block Diagram



101452A 3-4_010501

10 kΩ

TX_EN0

2 kΩ

+

-

NationalSemiconductor

LM6182IN

V Supply

N/C

V+V-

External Trigger

Figure 3-4. Level Shifter Circuit Drawing



1. Setup a call on a channel in the mid-ARFCN range using the HP8922M Test Set.2. Gate the spectrum analyzer so that at least 40 of bits 87 to 132 are within the

gate. This excludes the midamble bits and burst ramping.3. Set the gate delay to 450 µsec, which is the delay from TX_EN2 to bit 92 of the

burst, to gate the analyzer.4. Set the gate duration to 150 µsec, which is approximately 40 bits.5. Set the MS to maximum power level.6. Set the center frequency to the center frequency of the channel to be measured.7. Set the resolution and video BWs to 30 kHz, with a video average of 50 bursts.8. Set the analyzer to zero span.9. Measure the carrier frequency power at 30 kHz increments on either side of the

carrier up to 1800 kHz.10. Record all measurements.11. Repeat these tests for channels in the low- and high-ARFCN ranges.

Note: Perform these tests at temperature and extreme voltages at the mid-ARFCNonly.

Note: The GSM and DCS modulation spectrum limits for offsets up to ± 1800 kHzare specified in Table 3-2. A plot of the modulation spectrum, with thelimits superimposed, is shown in Figure 3-5.

Table 3-2. Modulation Spectrum Limits7

Frequency Offset (kHz) Relative Power (dBc)

± 100 + 0.5

± 200 – 30

± 250 – 33

± 400 – 60

± 600 to < ± 1800 – 60




12. Set the Resolution BW and Video BW to 100 kHz for the frequency range from1800 kHz, offset from the carrier, to the edge of the relevant transmit band.

13. Increase the span to cover the offset frequency up to the edge of the transmitband.

14. Measure the power level at 200 kHz steps over 50 bursts.

Note: Frequency range limits are specified in Table 3-3 for GSM and Table 3-4for DCS.

15. Set the Resolution BW and Video BW to 100 kHz for the frequency range fromthe edge of the relevant transmit band to 2 MHz on either side of the transmitband.

16. Measure the power level at steps of 200 kHz over 50 bursts.

Note: Frequency range limits are specified in Table 3-3 for GSM and Table 3-4for DCS.

Note: The wide-band modulation spectrum limits are subject to absolute minimumlevels of –46 dBm for GSM and –51 dBm for DCS 1800.

101452A 3-9_121300

Figure 3-5. Modulation Spectrum – Gated Measurement



Note: Up to 3 exceptions are allowed in the range from 600 kHz to 6 MHz offset.For these exceptions, a level of up to –36 dBm is permitted. Each exceptionis allowed to cover a 200 kHz bandwidth centered at an integer multiple of200 kHz.

17. Set the MS to the minimum power level.18. Set the center frequency to the center frequency of the channel to be measured.19. Set the Resolution BW and Video BW to 30 kHz with a video average of 50

bursts.20. Set the analyzer to zero span.21. Measure the power at the carrier frequency.22. Record measurements at ± 100 kHz, ± 200 kHz, ± 250 kHz, and every ± n*200

kHz where n = 2, 3,… 8 frequency offsets from the carrier.

The modulation spectrum limits are specified in Table 3-3.

Table 3-3. GSM Wide-Band Modulation Spectrum Limits8

FrequencyOffset (kHz)

RelativePower (dBc)

1800 to <3000 –633000 to < 6000 –65

≥6000 –71

Table 3-4. DCS Wide-Band Modulation Spectrum Limits8

Frequency Offset (kHz)Power Level

(dBm) 1800 to <6000 ≥≥≥≥6000

30 – 65 – 7728 – 63 – 7526 – 61 – 73

≤24 – 59 – 71

3.5 Output RF Spectrum Due to Switching Transient Test

This test verifies that the radio transmitter remains within its allowed BW so that itdoes not disrupt another user who may be within nine channels. The output RFspectrum due to switching transients is the relationship between the frequency offsetfrom the carrier and the power, measured in a specified BW and time, produced bythe MS due to the effects of power ramping. This effect is sometimes referred to as“spectral splatter”.






The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 2-2.



1. Setup a call on a channel in the mid-ARFCN range using the HP8922M Test Set.

Note: The spectrum analyzer needs no gating.

2. Set Span to 4 MHz.3. Set resolution BW to 30 kHz and video BW of 100 kHz.4. Set the trace to max hold.5. Set the MS to its maximum power level.6. Allow a sufficient measurement period to measure at least 10 bursts.7. Measure the peak power at the following offsets from the carrier: ± 400, ± 600,

± 1200, and ± 1800 kHz.8. Repeat the measurement at power control levels 7 and 11.9. Repeat this test sequence for channels in the low- and high-ARFCN ranges.10. Ensure that the measurement is made only at power level 11.

The limits for the switching transients are listed in Table 3-5 for GSM900 andTable 3-5 for DCS1800. A plot of the modulation spectrum due to switchingtransients, with the limits superimposed, is shown in Figure 3-6.

Table 3-5. GSM900 Spectrum Due to Switching Transients9

Maximum Allowed Level, GSM (dBm)Power (dBm) @ ±400 kHz @ ±600 kHz @ ±1200 kHz @ ±1800 kHz

33 – 19 – 21 – 21 – 2431 – 21 – 23 – 23 – 2629 – 23 – 25 – 25 – 2827 – 23 – 26 – 27 – 3025 – 23 – 26 – 29 – 3223 – 23 – 26 – 31 – 34

≤21 – 23 – 26 – 32 – 36




Table 3-6. DCS1800 Spectrum Due to Switching Transients10

Maximum Allowed Level, DCS (dBm)Power (dBm) @ ±400 kHz @ ±600 kHz @ ±1200 kHz @ ±1800 kHz

30 – 22 – 24 – 24 – 27

28 – 23 – 25 – 26 – 29

26 – 23 – 26 – 28 – 31

24 – 23 – 26 – 30 – 33

22 – 23 – 26 – 31 – 35

≤20 – 23 – 26 – 32 – 36

101452A 3-6_010501

Figure 3-6. Spectrum Due to Switching Transients




3.6 Receive Band Noise Tests

This test verifies that the radio transmitter is not creating any substantial noise in theGSM or DCS receive bands that may disrupt other system users. This test is onlyperformed at the mid-ARFCN at maximum power in both bands. Receive band noisemeasurement is performed to test for transmit power in both the GSM and DCSreceive frequency bands.



The Hewlett Packard HP8922M GSM/DCS Test Set and other equipment requiredfor this test are setup as shown in Figure 3-7. The bandpass filter is used to attenuatethe transmit carrier frequency to increase the dynamic range of the measurement. Thefilter should have a minimum rejection of 30 dB at the transmit frequency and a BWequal to the receive band under test.

The circulator is used to present a good 50 Ω load to the DUT both at the carrierfrequency and in the receive band. A Low Noise Amplifier (LNA) may be placedbetween the BW filter and the spectrum analyzer to increase the noise above thespectrum analyzer noise floor. The LNA should have a noise figure of less than 5 dBand a gain greater than 15 dB.

Caution: The specification limit of - 79 dBm must be at least 10 dB above thespectrum analyzer noise floor. Otherwise, the measurement data may becorrupted.

Device Under Test(DUT) Directional Coupler

HP8922M GSM/DCS Test Set

101452A 3-7_121400

Level Shifter

RX BandPass Filter

External Trigger

Coupled Port

TXEN2

SpectrumAnalyzer

OptionalLNA

50 Ω50 Ω

Circulator

Figure 3-7. Receive Band Noise Measurement Test Block DiagramThe loss in receive band, that is, Extended GSM (EGSM): 925 to 960 MHz, DCS:1805 to 1880 MHz, from the antenna to the spectrum analyzer input has to becalibrated. Calibration is done in many ways. The simplest method is to use acalibrated signal generator and spectrum analyzer, or network analyzer to measurecable loss. In either case, normal and ordinary RF routine should be employed toassure the integrity of the measurement.

The spectrum analyzer reference level offset is adjusted according to the calibration.

The receive band noise measurement is composed of four separate tests:



• GSM Rx band while in GSM Tx mode• DCS Rx band while in GSM Tx mode• DCS Rx band while in DCS Tx mode• GSM Rx band while in DCS Tx mode

3.6.2 Measure GSM Rx Band Noise While in GSM Tx Mode Test Procedures

The purpose of this test is to assure that MS noise generated and transmitted in theGSM band does not interfere with the GSM Rx band of the other units in closeproximity with the MS under test.


1. Insert an isolator, covering both GSM Tx and Rx bands, followed by an EGSM,925 to 960 MHz, BW filter between the DUT and the spectrum analyzer.

Note: The filter should have at least 30 dB of rejection at the transmit frequency.

2. Setup a call on a channel in the mid-ARFCN range of GSM using the HP8922MTest Set.

3. Set the power control level to maximum, that is, power level 5 for GSM.4. Set the span on the spectrum analyzer to 90 MHz with the center frequency at

955 MHz.

Note: With this setting, both the attenuated transmit signal and receive band noiseare displayed.

Note: While the spectrum analyzer cannot measure the full sweep plot, forexample, in the case of the HP8593E spectrum analyzer, the span needs tobe set to 0 Hz and the time averaged measurements must be made atdiscrete frequencies across the relevant receive band in 200 kHz steps.

5. Turn on the external trigger on the spectrum analyzer with the gating set toinclude data only from the useful part of the burst. This excludes the rampingpart of the burst, see Section 3.4.

6. Set the spectrum analyzer resolution and video BWs to 100 kHz.7. Set the ATTEN to 0 dB to improve the spectrum analyzer dynamic range.8. Turn the video averaging ON and average over 50 bursts.

The maximum noise power permitted in the GSM receive band is specified inTable 3-7.

Table 3-7. Limits For Noise in Rx Bands11

Band (MHz) Spurious Emission Level (dBm)925 to 935 –67

935.2 to 960 –791805 to 1880 –71




A plot of measured noise in the GSM Rx band while in GSM Tx mode is shown inFigure 3-8.

Although this is a time-consuming test, the spectrum analyzer does not need to beexternally triggered, provided it can reliably trigger on the video level.

Figure 3-8. GSM Rx Band Measured Noise While in GSM Tx Mode

3.6.3 Measure DCS Rx Band Noise While in GSM Tx Mode Test Procedures

The purpose of this test is to assure that MS noise generated and transmitted in theGSM band does not interfere with the DCS Rx band of the other units in closeproximity with the MS under test.


1. Insert an isolator, covering both GSM and DCS Tx and Rx bands, followed by aDCS (1805 to 1880 MHz) bandpass filter between the DUT and the spectrumanalyzer. The filter should have at least 30 dB of rejection at the transmitfrequency.

2. Setup a call on a channel in the mid-ARFCN range of GSM using the HP8922MTest Set.

3. Set the power control level to maximum, that is, power level 5 for GSM.4. Set the spectrum analyzer span 90 MHz with the center frequency at 1855 MHz.5. Turn on the spectrum analyzer external trigger.6. Set the gating to include data only from the useful part of the burst, that is,

exclude the ramping part of the burst, see Section 3.4.7. Set the spectrum analyzer resolution and video BWs to 100 kHz.



8. Set the ATTEN to 0 dB to improve the dynamic range of the analyzer.9. Turn the video averaging on, and average over 50 bursts.

The maximum noise power permitted in the DCS 1800 receive band is specified inTable 3-7.

3.6.4 Measure DCS Rx Band Noise While in DCS Tx Mode Test Procedures

The purpose of this test is to assure that MS noise generated and transmitted in theDCS band does not interfere with the DCS Rx band of the other units in closeproximity with the MS under test.


1. Insert an isolator, covering both GSM Tx and Rx bands, followed by a DCS(1805 to 1880 MHz) bandpass filter between the DUT and the spectrumanalyzer.


2. Setup a call on a channel in the mid-ARFCN range of DCS using the HP8922MTest Set.

3. Set the power control level to maximum, that is, power level 0 for DCS.4. Set the spectrum analyzer span to 135 MHz, with the center frequency at

1845 MHz. With this setting, the spectrum analyzer displays both the attenuatedtransmit signal and receive band noise.

5. Turn on the spectrum analyzer external trigger with the gating set to include dataonly from the useful part of the burst.

6. Exclude the ramping part of the burst, see Section 3.4.7. Set the spectrum analyzer resolution and video BWs to 100 kHz.8. Set the ATTEN to 0 dB to improve the analyzer dynamic range.9. Turn the video averaging on and average over 50 bursts.

The maximum noise power permitted in the DCS 1800 receive band is specified inTable 3-7.

3.6.5 Measure GSM Rx Band Noise While in DCS Tx Mode Test Procedures

The purpose of this test is to assure that MS noise generated and transmitted in theDCS band does not interfere with the GSM Rx band of the other units in closeproximity with the MS under test.


1. Insert an isolator, covering both GSM and DCS Tx and Rx bands, followed byan EGSM, that is, 925 to 960 MHz, BW filter between the DUT and thespectrum analyzer.


2. Setup a call on a channel in the mid-ARFCN range of DCS using the HP8922MTest Set.

3. Set the power control level to maximum, that is, power level 0 for DCS.4. Set the spectrum analyzer span to 90 MHz, with the center frequency at

955 MHz.5. Turn on the external trigger on the spectrum analyzer with the gating set to

include data only from the useful part of the burst.6. Exclude the ramping part of the burst, see Section 3.4.7. Set the spectrum analyzer resolution and video BWs to 100 kHz.



8. Set the ATTEN to 0 dB to improve the dynamic range of the analyzer.9. Turn the video averaging on and average over 50 bursts.

The maximum noise power permitted in the GSM receive band is specified inTable 3-7.

3.7 Intermodulation Attenuation Test

This test verifies that no spurious signals are generated due to several mobile stationsoperating in close proximity to one another. This test only applies to DCS1800.Intermodulation attenuation is the ratio in dBs of the wanted signal power level to thehighest intermodulation component power level.



The Hewlett Packard HP8922M GSM/DCS Test Set and other equipment requiredfor this test are setup as shown in Figure 3-9. At the antenna port, an unmodulatedinterferer from a signal generator is coupled back into the transmitter. This can beaccomplished by means of a coupler and an isolator. Both directional couplers andthe isolator must cover the DCS transmit band, that is, 1710 to 1785 MHz.



1. Setup a call on a channel in a DCS mid-ARFCN range using the HP8922M TestSet.

2. Set the power control level to maximum, that is, power level 0 for DCS.3. Inject a Continuous Wave (CW) interfering signal at a frequency equal to the

nominal channel frequency, that is, + 800 kHz.4. Set the interferer level so that it has a level of 40 dB below the power level of the

transmit frequency, that is, – 10 dBm at the DUT.5. Set the resolution and video BWs to 300 kHz.6. Set the detection mode to peak/max hold.7. Scan the DCS transmit band for intermodulation products.

Note: Intermodulation products should be below 50 dB, relative to the Tx signal.

8. Repeat the same steps for an interfering frequency equal to the nominal channelfrequency, – 800 kHz.




101452A 3-9_121300

SignalGenerator

SpectrumAnalyzer

Isolator

Directional Coupler A

HP8922M GSM/DCS Test Set

Coupled Port

Directional Coupler B

50 Ω 50 Ω

Figure 3-9. DCS Intermodulation Attenuation Measurement Test Block Diagram

Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Receiver


4. ReceiverThis section describes the equipment requirements and test procedures for thefollowing radio receiver tests to ensure compliance with all relevant GSMrequirements:

• Reference Sensitivity Test, see Section 4.1• Usable Receiver Input Level Range Test, see Section 4.2• Co-Channel Rejection Test, see Section 4.3• Adjacent Channel Rejection Test: Speech Channels, see Section 4.4• Intermodulation Rejection Test: Speech Channels, see Section 4.5• Blocking and Spurious Response Test: Speech Channels, see Section 4.6• Received Signal Strength Indicators (RSSI) Measurement Tests

Relative Accuracy of Rx Level Measurements on Different ARFCNs Test,see Section 4.7.2

Relative Accuracy of Rx Level Measurements on a Single ARFCN Test, seeSection 4.7.3

Absolute Accuracy of Rx Level Measurements on Different ARFCNs Test,see Section 4.7.4

4.1 Reference Sensitivity Test

This Traffic Channel-Full-Rate Speech (TCH/FS) test verifies that the radio canreceive low-level signals from the base station that may be corrupted by multi-paths.The reference sensitivity is the signal level at the DUT input at which a certain BitError Rate (BER) and Frame Error Rate (FER) must be achieved.



The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 4-1. The DUT antenna port is connected to theHP8922M through a fader, which simulates Urban Area (TU)50, Rural Area (RA,)and Hilly Terrain (HT) fading profiles. If a fader is not available, only staticsensitivity can be measured.

Device Under Test(DUT) Fader


101452A 4-1_010501

Tx

Rx

Figure 4-1. Reference Sensitivity Test Block Diagram




Receiver Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification



3. Add the loss as a negative number.4. Initiate a call using the H8922M at channel 70 for GSM and at a channel in the

mid-ARFCN range for DCS.5. Set the fader for a static signal.6. Set the Tx power level to maximum, that is, PL0 for DCS and PL5 for GSM.7. Set the HP8922M for reference sensitivity, that is, GSM – 102 dBm, DCS:

– 100 dBm.8. Select the BER screen.9. Measure the BER and FER percentages for the minimum number of samples

specified in Table 4-1 and Table 4-2.

Perform the TU50 profile and static sensitivity over three channels in both bands, andover temperature and supply voltage extremes. Channel 5 must be chosen whenselecting the channel in the low-ARFCN range for GSM.

For RA and HT profiles, test only the mid-ARFCN channels.

Table 4-1. Limits For GSM Sensitivity12

Property TU50 RA250 HT100 Static

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

FER 6.742×α 8,900 0.122×α 164,000Class IbRBER

0.42/α 1,000,000 0.41/α 20,000,000

Class IIRBER

8.33 120,000 7.5 24,000 9.333 60,000 2.439 8,200

Note: α can be selected to be between 1.0 and 1.6, which means more Class Ib failures can be traded for fewerframe errors and vice versa.

Table 4-2. Limits For DCS Sensitivity12

Property TU50 RA130 HT100 Static

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

ErrorLimit (%)

No. ofSamples

FER 4.478×α 13,400 0.122×α 164,000Class IbRBER

0.32/α 1,500,000 0.41/α 20,000,000

Class IIRBER

8.33 60,000 7.5 24,000 9.333 30,000 2.439 8,200





4.2 Usable Receiver Input Level Range Test

The purpose of this test is to verify that the radio can receive strong signals from thebase station without a substantial degradation in performance. The usable receiverinput range is the measurement of the dynamic range of the receiver in which theBER and FER stay within specified limits.



The Hewlett Packard HP8922M Test Set is setup as shown in Figure 4-2. The DUTantenna port is connected to the HP8922M Test Set. Perform this test at temperatureand supply voltage extremes, and with the fading function set to Equalizer (EQ) toverify the equalizer performance.

Note: This measurement is not performed as part of this test description.



101452A 4-2_010501

Figure 4-2. Usable Receiver Input Range Test Block Diagram





3. Add the loss as a negative number.4. Initiate a call using the H8922M at a channel in the mid-ARFCN range.5. Set the Tx power level to maximum, that is, GSM = PL5, DCS = PL0.6. Set the HP8922M signal strength to – 40 dBm.7. Select the BER screen.8. Measure the Class II BER percentage for the minimum number of samples

shown in Table 4-3.9. Increase the signal strength to – 15 dBm for GSM and –23 dBm for DCS and

measure the Class II BER.

The BER measured must not exceed the limits specified in Table 4-3.



Table 4-3. Limits For Usable Receiver Input Level13

GSM DCSStatic Signal

StrengthLevel

Test LimitError Rate %

MinimumNumber ofSamples


MinimumNumber ofSamples

–40 dBm 0.012 1,640,000 0.012 1,640,000–23 dBm 0.122 164,000–15 dBm 0.122 164,000

4.3 Co-Channel Rejection Test

This TCH/FS test verifies that the receiver can operate in a system environment thatmay have a Gaussian Minimum-Shift Keying (GMSK)-modulated signal directly on achannel at a substantial level. Co-channel rejection is a measure of the capability ofthe receiver to receive a wanted signal without exceeding a given degradation due tothe presence of an unwanted modulated signal.



The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 4-3. The DUT antenna port is connected to theHP8922M through a fader. This test may be performed without a fader to verifygeneral co-channel performance, but for true co-channel performance, a fader mustbe used.

For a static measurement, a directional coupler should be used to couple in themodulated interferer. This test also should be performed under frequency hoppingconditions, but due to the difficulty of this measurement it is not described in thisdocument.

Device UnderTest (DUT) Fader

101452A 4-3_010301


Tx

Rx

GMSKModulated Interferer

Figure 4-3. Co-Channel Rejection Test Block Diagram








3. Add the loss as a negative number.4. Set the fader to static and initiate a call using the H8922M at a channel in the

mid-ARFCN range.5. Set the Tx power level to maximum, that is, GSM = PL5, DCS = PL0.6. Set the HP8922M signal strength to – 90 dBm.7. Set the signal generator so that the signal is GMSK-modulated and the level seen

at the DUT is – 99 dBm, that is, 9 dB below the desired level.8. Set the fading characteristic, that is, GSM = TU3 (TUlow), DCS = TU1.5

(TUlow).9. Select the BER screen.10. Measure the FER, Class IB, and Class II BER percentages for the minimum

number of samples specified in Table 4-4.11. Repeat this test for fading characteristic TU50 for both GSM and DCS.

Table 4-4. Limits For Co-Channel Performance14

MeasurementType

PropagationCondition

Test Limit ErrorRate %

Minimum Number ofSamples

FER TUlow 24×α 25,000ClassIb RBER TUlow 2.091/α 3,300,000Class II RBER TUlow 4.3 2,000,000FER TU50 3.371×α 17,800ClassIb RBER TU50 0.215/α 2,000,000Class II RBER TU50 8.333 1,200,000Note: α can be selected to be between 1.0 and 1.6, which means more Class

Ib failures can be traded for fewer frame errors and vice versa.

4.4 Adjacent Channel Rejection Test: Speech Channels

This test verifies that the receiver can operate in a system environment that may haveGMSK-modulated signals one or two channels away at substantial levels. Theadjacent channel selectivity is a measure of the capability of the receiver to receive awanted signal without exceeding a given degradation due to the presence of anunwanted modulated signal in the adjacent channel.



The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 4-3. The DUT antenna port is connected to theHP8922M through a fader. This test may be performed without a fader to verify




general adjacent channel performance, but for true adjacent channel performance, afader must be used.

For a static measurement, a directional coupler should be used to couple in themodulated interferer. This test also should be performed under frequency hoppingconditions. Due to the difficulty of this measurement, it is not described in thisdocument.




2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the fader to static and initiate a call using the H8922M at a channel in the

mid-ARFCN range.5. Set the Tx power level to maximum, that is, GSM = PL5, DCS = PL0.6. Set the HP8922M signal strength to – 90 dBm.7. Set the signal generator so that the signal is GMSK-modulated, the frequency is

200 kHz above the selected ARFCN, and the signal seen at the DUT is – 81 dBm, that is, 9 dB above the desired level.

8. Set the fading characteristic for TU50.9. Select the BER screen.10. Measure the FER, ClassIB, and Class II BER percentages for the minimum

number of samples specified in Table 4-5.11. Repeat this test with the interfering signal set to 200 kHz below the selected

ARFCN.12. Repeat the test again for an interfering signal 400 kHz above and below the

selected ARFCN at a signal strength of – 59 dBm at the DUT, that is, 41 dBabove the desired.

This entire test must be repeated at temperature and supply voltage extremes.

Note: A static interferer may be more realistic due to the dynamic constraints ofmost commercial faders. In this case, the desired signal is faded and theadjacent interferer is delivered to the DUT through a directional coupler.



Table 4-5. Limits For Adjacent Channel Performance15

GSM DCSInterferer At Measurement

Type Test LimitError Rate %

Minimum Numberof Samples



200 kHz FERClassIB RBERClass II RBER

6.742×α0.420×α

8.333

8,9001,000,000600,000

3.371×α0.270/α8.333

17,8002,000,0001,200,000

400 kHz FERClassIB RBERClass II RBER

11.461×α0.756/α9.167

8,9001,000,000600,000

5.714×α0.483/α9.167

10,5001,200,000720,000


4.5 Intermodulation Rejection Test: Speech Channels

This test verifies that the receiver can operate in a system environment that may haveGMSK-modulated signals at four channels and eight channels away at substantiallevels. Intermodulation rejection is the measure of the receiver’s ability to receive awanted modulated signal in the presence of two or more unwanted signals with aspecific frequency relationship to the wanted signal.



The Hewlett Packard HP8922M Test Set and other equipment required for this testare setup as shown in Figure 4-4. The DUT antenna port is connected to theHP8922M through a coupler. Two signal generators are combined with a combinerand delivered to the DUT through a directional coupler. This test is performed inboth bands, over three channels, and over extreme conditions.

Device UnderTest (DUT) Coupler

101452A 4-4_010301


GMSK-ModulatedInterferer

Combiner

CW Interferer

Figure 4-4. Intermodulation Rejection Test Block Diagram







2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Initiate a call using the H8922M at a channel in the mid-ARFCN range.5. Set the Tx power level to maximum, that is, DCS = PL0, GSM = PL5.6. Set the HP8922M signal strength for 4 dB above reference sensitivity, that is,

GSM = – 98 dBm, DCS = – 96 dBm.7. Set the unmodulated signal generator so that the signal is 800 kHz above that of

the receiver; – 49 dBm should be seen at the DUT input.8. Set the GMSK-modulated signal generator so that the signal is 1600 kHz above

the receiver. Levels of –50 dBm for GSM and –49 dBm for DCS should be seenat the DUT input.

9. Select the BER screen.10. Measure the Class II BER percentage for the minimum number of samples

shown in Table 4-6.11. Repeat this test with the two interfering signals set to 800 kHz and 1600 kHz

below the selected ARFCN.12. Repeat the test again for channels in both the low and high ARFCN range, and at

temperature and supply voltage extremes.

Table 4-6. Limits For Intermodulation Performance16

MeasurementType



Class II RBER 2.439 8,200

4.6 Blocking and Spurious Response Test: Speech Channels

This test verifies that the receiver can operate in a system environment that may haveextra signals at various frequencies. Blocking is the receiver’s ability to receive awanted modulated signal in the presence of an unmodulated interferer withoutexceeding a given degradation.



The DUT antenna port is connected to the HP8922M through a coupler, as shown inFigure 4-5. A signal generator is delivered to the DUT through a directional coupler.The directional coupler must be broadband; otherwise, a combiner may be used.Also, when the blocking signal close to the wanted signal and the amplitude is high,that is, around 915 MHz and 980 MHz, a notch filter at the desired frequency may beused between the interferer and the coupler. This reduces the amount of injected on-channel phase noise.




The notch filters should have at least 10 dB of rejection at the carrier frequency andshould be narrow enough that the signal level at ± 15 MHz from the carrier is notattenuated substantially. This test is performed in both bands.

Device UnderTest (DUT) Coupler

101452A 4-5_010301


CW Interferer

Notch Filter atRx Frequency

Figure 4-5. Blocking Test Block Diagram




2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Initiate a call using the H8922M at channel 62 for GSM and channel 700 for

DCS.

Note: According to the GSM 11.10-1 standard, any other channel can be chosenfor this test.

5. Set the Tx power level to maximum, that is, DCS = PL0, GSM = PL5.6. Set the HP8922M signal strength to 4 dB above reference sensitivity, that is,

GSM = – 98 dBm, DCS =– 96 dBm.7. Set the unwanted signal generator so that the swept frequency covers

IF1 – 200 kHz, IF1, and IF + 200 kHz. The amplitude setting for the frequencyrange is specified in Table 4-7.

8. Select the BER screen.9. Measure the Class II BER percentage for each blocking signal for the minimum

number of samples specified in Table 4-6.10. Repeat this test with the interfering signal swept from 835 MHz to Flo + IF1 +

IF2 + 12.5 MHz every 200 kHz for GSM, and from Flo – IF1 – IF2 – 37.5MHzto 1980MHz every 200 kHz for DCS. The amplitude setting for the frequency isspecified in Table 4-7.

Note: As a numerical example for Table 4-7 and Table 4-8, channel 62 andchannel 700 are chosen for GSM and DCS respectively. The local oscillatorfrequencies (Flo) for these channels are 1347.4 MHz and 1442.8 MHzrespectively. Also, the Conexant chipset solution IF frequencies are 400MHz for the first IF (IF1) and 14.6 MHz for the second IF (IF2).

11. Repeat this test for the frequencies m × Flo ± IF1 and m × Frf, where m is aninteger greater than or equal to 2.

12. Set the interferer amplitude to – 23 dBm for both GSM and DCS.

These absolute frequencies for the Conexant chipset solution are specified inTable 4-8.



Table 4-7. Blocking Interferer Frequency and Amplitude, Part I

GSM DCSFrequency Range

(MHz)Interferer Level

(dBm)Frequency Range

(MHz)Interferer Level

(dBm)399.8 to 400.2 –23 399.8 to 400.2 –23

835 to 915 0 990.6 to 1705 0915 to 944.4 –23 1705 to 1785 –12

944.4 to 945.8 –33 1785 to 1839.8 –26945.8 to 946.8 –43 1839.8 to 1841.2 –33

948 to 949 –43 1841.2 to 1842.2 –43949 to 950.4 –33 1843.4 to 1844.4 –43950.4 to 980 –23 1844.4 to 1845.8 –33980 to 1000 0 1845.8 to 1920 –26

1000 to 1774.6 –23 1920 to 1980 –12

Table 4-8. Blocking Interferer Frequency and Amplitude, Part II

GSM Interferer(MHz)

DCS Interferer(MHz)

GSM Interferer(MHz)

DCS Interferer(MHz)

1894.8 2485.6 7579.2 9699.62294.8 3285.6 7684.4 10499.62842.2 3685.6 8484.4 11056.83094.8 3928.4 8526.6 11142.43642.2 4728.4 9031.8 11942.43789.6 5371.2 9474.0 12585.24442.2 5528.4 9831.8 –4737.0 6171.2 10379.2 –4989.6 6814.0 10421.4 –5684.4 7371.2 11179.2 –5789.6 7614.0 11368.8 –6337.0 8256.8 11726.6 –6631.8 9056.8 12316.2 –7137.0 9214.0 12526.6 –

All BER measurements at each interferer frequency must be less than the limitsspecified in Table 4-6. However, the allowable exceptions are listed in Table 4-9:



Table 4-9. Allowable BER Measurement Exception17

Freq DefinitionA maximum of 6 failures are allowed in the frequency range of 915 MHz to 980 MHz of which, ifgrouped, must not exceed 3 failures in a row.GSMA maximum of 24 failures combined from 100 kHz to 915 MHz and 980 MHz to 12.75 GHz areallowed of which, if grouped below the ARFCN frequency, must not exceed 3 failures in a row.A maximum of 12 failures are allowed in the frequency range of 1785 MHz to 1920 MHz of which, ifgrouped, must not exceed 3 failures in a row.DCSA maximum of 24 failures combined from 100 kHz to 1785 MHz and 1920 MHz to 12.75 GHz areallowed of which, if grouped below the ARFCN frequency, must not exceed three failures in a row.

If the number of exceptions measured does not exceed the number allowed, then foreach blocking exception, re-test the BER at a relaxed interferer level of –43 dBm.The measured BER must be less than the limits specified in Table 4-6. At this level,no exceptions are allowed.

4.7 Received Signal Strength Measurement Tests

This test verifies that the received signal strength is within GSM parameters for:

• Absolute signal strength• Relative signal strength• Linearity

This ensures that the radio operates within established GSM parameters in differentconditions under which the radio may be exposed. The radio reports an RXLEVvalue related to the received RF signal strength. These numbers must be accurate forcorrect system operation.



The DUT antenna port is connected to the HP8922M Test Set, as shown inFigure 4-6. This test is performed in both bands, at temperature and supply voltageextremes, and on multiple channels. Ideally, this test should be run with six separatesignal generators set up as neighboring cells with GMSK modulation run through aseries of combiners into the DUT. Due to practical limitations, the tests describedhere are run with the HP8922 Test Set alone.

Device UnderTest (DUT)

101452A 4-6_010301


Figure 4-6. Rx Level Reporting Test Block Diagram




Received signal strength measurements are composed of the following three tests:

• Relative accuracy of the Rx level on different ARFCNs, see Section 4.7.2• Relative accuracy of the Rx level on a single ARFCN, see Section 4.7.3• Absolute accuracy of the Rx level on different ARFCNs, see Section 4.7.4

4.7.2 Relative Accuracy of Rx Level Measurements on Different ARFCNs Test Procedures

This test verifies an acceptable level for receiver ripple at various signal levels. TheGSM and DCS bands are tested separately and together.

4.7.2.1 GSM Band Test ProceduresThis test verifies an acceptable level for receiver ripple at various signal levels in theGSM band.



2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the HP8922M signal strength to – 48.5 dBm.5. Set the Tx power level to maximum.6. Initiate a call using the H8922M at channel 1 for GSM.7. Record the RXLEV value as displayed on the cell control screen for channels 1,

20, 40, 62, 80, 100, and 124.8. Lower the signal strength by 10 dB.9. Repeat step 7.10. Continue to lower the signal strength by 10 dB and record the RXLEV values on

all the channels until the signal strength is at –108.5 dBm.

At each signal strength level for the seven different ARFCNs, subtract the minimumRXLEV reading from the maximum recorded RXLEV reading. The limits arespecified in Table 4-10.

Table 4-10. Limits for GSM and DCS Relative Rx Level Performance18

ARFCNSignal Strength (dBm)

Maximum Allowed DeltaFrom RXLEVmax to

RXLEVmin–48.5 4–58.5 4–68.5 4–78.5 4–88.5 5–98.5 5

–108.5 6Note: The radio does not have to report RXLEV for – 108 dBm.

If it does, it must be less than the limit value.




4.7.2.2 DCS Band Test ProceduresThis test verifies an acceptable level for receiver ripple at various signal levels in theDCS band.



2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the HP8922M signal strength to –48.5 dBm.5. Set the Tx power level to maximum.6. Initiate a call using the H8922M at DCS channel 512.7. Record the RXLEV value as displayed on the cell control screen for channels

512, 585, 660, 700, 790, 835, and 885.8. Lower the signal strength by 10 dB.9. Repeat step 7.10. Continue to lower the signal strength by 10 dB and record the RXLEV values on

all the channels until the signal strength is at – 108.5 dBm.11. Subtract the maximum RXLEV reading from the minimum RXLEV at each

signal strength level for the seven reported RXLEV readings.

The limits are specified in Table 4-10.

4.7.2.3 Dual (GSM and DCS) Bands Test ProceduresThis test verifies an acceptable level for receiver ripple at various signal levels inboth the GSM and DCS bands.

Note: This test must be performed at temperature extremes.



2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the HP8922M signal strength to – 48.5 dBm.5. Set the Tx power level to maximum.6. Initiate a call using the H8922M at GSM channel 1.7. Record the RXLEV value as displayed on the cell control screen for channels 1,

40, 62, 100, and 124.8. Lower the signal strength by 10 dB.9. Repeat step 7.10. Continue to lower the signal strength by 10 dB while recording the RXLEV

values on all the channels until the signal strength is at – 108.5 dBm.11. Initiate a call using the H8922M at DCS channel 512.12. Record the RXLEV value as displayed on the cell control screen for channels

512 and 885.13. Lower the signal strength by 10 dB.14. Repeat step 12.15. Continue to lower the signal strength by 10 dB and record the RXLEV values on

all the channels until the signal strength is at –108.5 dBm.16. Subtract the minimum RXLEV reading from the maximum recorded RXLEV

reading At each signal strength level for the seven different ARFCNs.

The limits are specified in Table 4-11.



Table 4-11. Limits For Both Bands Relative Rx Level Performance

Signal Strength(dBm)

Maximum Allowed DeltaFrom RXLEVmax to

RXLEVmin(Nominal Conditions)

Maximum Allowed Delta FromRXLEVmax to RXLEVmin

(Extreme TemperatureConditions)

–48.5 8 12–58.5 8 12–68.5 8 12–78.5 8 12–88.5 9 13–98.5 9 13

–108.5 10 14Note: The radio does not have to report RXLEV for –108 dBm. If it does, it must beless than the limit value.

4.7.3 Relative Accuracy of Rx Level Measurements on a Single ARFCN Test ProceduresThis test verifies RSSI linearity by looking at the Rx level reporting in 1 dB stepswithin five 20 dB windows. Within each of these 20 dB windows, all of the valuesare compared to the first value, that is, strongest signal level, measured within thewindow.



2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the HP8922M signal strength to – 48.5 dBm.5. Set the Tx power level to maximum.6. Initiate a call using the H8922M at GSM channel 62 and DCS channel 700.7. Record the RXLEV value as displayed on the cell control screen.8. Lower the signal strength by 1 dB.9. Repeat step 7.10. Continue to lower the signal strength by 1 dB and record the RXLEV value until

the signal strength is at –108.5 dBm.

The limits are specified in Table 4-12 through Table 4-16.

Table 4-12. Limits For Relative Rx Level Performance on a Single ARFCN (Window 1)(RXLEV = 1 to 21) (1 of 2)

MeasurementNumber (n)


Limit Level (dB)

1 –48.5 dBm2 –49.5 dBm Rx_Lev(1)–Rx_Lev(n)–1, between –2 and +23 –50.5 dBm Rx_Lev(1)–Rx_Lev(n)–2, between –2 and +24 –51.5 dBm Rx_Lev(1)–Rx_Lev(n)–3, between –2 and +25 –52.5 dBm Rx_Lev(1)–Rx_Lev(n)–4, between –2 and +26 –53.5 dBm Rx_Lev(1)–Rx_Lev(n)–5, between –2 and +27 –54.5 dBm Rx_Lev(1)–Rx_Lev(n)–6, between –2 and +2






Limit Level

8 –55.5 dBm Rx_Lev(1)–Rx_Lev(n)–7, between –2 and +29 –56.5 dBm Rx_Lev(1)–Rx_Lev(n)–8, between –2 and +2

10 –57.5 dBm Rx_Lev(1)–Rx_Lev(n)–9, between –2 and +211 –58.5 dBm Rx_Lev(1)–Rx_Lev(n)–10, between –2 and +212 –59.5 dBm Rx_Lev(1)–Rx_Lev(n)–11, between –2 and +213 –60.5 dBm Rx_Lev(1)–Rx_Lev(n)–12, between –2 and +214 –61.5 dBm Rx_Lev(1)–Rx_Lev(n)–13, between –2 and +215 –62.5 dBm Rx_Lev(1)–Rx_Lev(n)–14, between –2 and +216 –63.5 dBm Rx_Lev(1)–Rx_Lev(n)–15, between –2 and +217 –64.5 dBm Rx_Lev(1)–Rx_Lev(n)–16, between –2 and +218 –65.5 dBm Rx_Lev(1)–Rx_Lev(n)–17, between –2 and +219 –66.5 dBm Rx_Lev(1)–Rx_Lev(n)–18, between –2 and +220 –67.5 dBm Rx_Lev(1)–Rx_Lev(n)–19, between –2 and +221 –68.5 dBm Rx_Lev(1)–Rx_Lev(n)–20, between –2 and +2

Table 4-13. Limits For Relative Rx Level Performance on a Single ARFCN (Window 2)(RXLEV = 11 to 31)


Signal Strength Limit Level

11 – 58.5 dBm12 – 59.5 dBm Rx_Lev(11)–Rx_Lev(n)–1, between – 2 and + 213 – 60.5 dBm Rx_Lev(11)–Rx_Lev(n)–2, between – 2 and + 214 – 61.5 dBm Rx_Lev(11)–Rx_Lev(n)–3, between – 2 and + 215 – 62.5 dBm Rx_Lev(11)–Rx_Lev(n)–4, between – 2 and + 216 – 63.5 dBm Rx_Lev(11)–Rx_Lev(n)–5, between – 2 and + 217 – 64.5 dBm Rx_Lev(11)–Rx_Lev(n)–6, between – 2 and + 218 – 65.5 dBm Rx_Lev(11)–Rx_Lev(n)–7, between – 2 and + 219 – 66.5 dBm Rx_Lev(11)–Rx_Lev(n)–8, between – 2 and + 220 – 67.5 dBm Rx_Lev(11)–Rx_Lev(n)–9, between – 2 and + 221 – 68.5 dBm Rx_Lev(11)–Rx_Lev(n)–10, between – 2 and + 222 – 69.5 dBm Rx_Lev(11)–Rx_Lev(n)–11, between – 2 and + 223 – 70.5 dBm Rx_Lev(11)–Rx_Lev(n)–12, between – 2 and + 224 – 71.5 dBm Rx_Lev(11)–Rx_Lev(n)–13, between – 2 and + 225 – 72.5 dBm Rx_Lev(11)–Rx_Lev(n)–14, between – 2 and + 226 – 73.5 dBm Rx_Lev(11)–Rx_Lev(n)–15, between – 2 and + 227 – 74.5 dBm Rx_Lev(11)–Rx_Lev(n)–16, between – 2 and + 228 – 75.5 dBm Rx_Lev(11)–Rx_Lev(n)–17, between – 2 and + 229 – 76.5 dBm Rx_Lev(11)–Rx_Lev(n)–18, between – 2 and + 230 – 77.5 dBm Rx_Lev(11)–Rx_Lev(n)–19, between – 2 and + 231 – 78.5 dBm Rx_Lev(11)–Rx_Lev(n)–20, between – 2 and + 2






21 – 68.5 dBm22 – 69.5 dBm Rx_Lev(21)–Rx_Lev(n)–1, between – 2 and + 223 – 70.5 dBm Rx_Lev(21)–Rx_Lev(n)–2, between – 2 and + 224 – 71.5 dBm Rx_Lev(21)–Rx_Lev(n)–3, between – 2 and + 225 – 72.5 dBm Rx_Lev(21)–Rx_Lev(n)–4, between – 2 and + 226 – 73.5 dBm Rx_Lev(21)–Rx_Lev(n)–5, between – 2 and + 227 – 74.5 dBm Rx_Lev(21)–Rx_Lev(n)–6, between – 2 and + 228 – 75.5 dBm Rx_Lev(21)–Rx_Lev(n)–7, between – 2 and + 229 – 76.5 dBm Rx_Lev(21)–Rx_Lev(n)–8, between – 2 and + 230 – 77.5 dBm Rx_Lev(21)–Rx_Lev(n)–9, between – 2 and + 231 – 78.5 dBm Rx_Lev(21)–Rx_Lev(n)–10, between – 2 and + 232 – 79.5 dBm Rx_Lev(21)–Rx_Lev(n)–11, between – 2 and + 233 – 80.5 dBm Rx_Lev(21)–Rx_Lev(n)–12, between – 2 and + 234 – 81.5 dBm Rx_Lev(21)–Rx_Lev(n)–13, between – 2 and + 235 – 82.5 dBm Rx_Lev(21)–Rx_Lev(n)–14, between – 2 and + 236 – 83.5 dBm Rx_Lev(21)–Rx_Lev(n)–15, between – 2 and + 237 – 84.5 dBm Rx_Lev(21)–Rx_Lev(n)–16, between – 2 and + 238 – 85.5 dBm Rx_Lev(21)–Rx_Lev(n)–17, between – 2 and + 239 – 86.5 dBm Rx_Lev(21)–Rx_Lev(n)–18, between – 2 and + 240 – 87.5 dBm Rx_Lev(21)–Rx_Lev(n)–19, between – 2 and + 241 – 88.5 dBm Rx_Lev(21)–Rx_Lev(n)–20, between – 3 and + 2




31 – 78.5 dBm32 – 79.5 dBm Rx_Lev(31)–Rx_Lev(n)–1, between – 2 and + 233 – 80.5 dBm Rx_Lev(31)–Rx_Lev(n)–2, between – 2 and + 234 – 81.5 dBm Rx_Lev(31)–Rx_Lev(n)–3, between – 2 and + 235 – 82.5 dBm Rx_Lev(31)–Rx_Lev(n)–4, between – 2 and + 236 – 83.5 dBm Rx_Lev(31)–Rx_Lev(n)–5, between – 2 and + 237 – 84.5 dBm Rx_Lev(31)–Rx_Lev(n)–6, between – 2 and + 238 – 85.5 dBm Rx_Lev(31)–Rx_Lev(n)–7, between – 2 and + 239 – 86.5 dBm Rx_Lev(31)–Rx_Lev(n)–8, between – 2 and + 240 – 87.5 dBm Rx_Lev(31)–Rx_Lev(n)–9, between – 2 and + 241 – 88.5 dBm Rx_Lev(31)–Rx_Lev(n)–10, between – 3 and + 242 – 89.5 dBm Rx_Lev(31)–Rx_Lev(n)–11, between – 3 and + 243 – 90.5 dBm Rx_Lev(31)–Rx_Lev(n)–12, between – 3 and + 2






44 – 91.5 dBm Rx_Lev(31)–Rx_Lev(n)–13, between – 3 and + 245 – 92.5 dBm Rx_Lev(31)–Rx_Lev(n)–14, between – 3 and + 246 – 93.5 dBm Rx_Lev(31)–Rx_Lev(n)–15, between – 3 and + 247 – 94.5 dBm Rx_Lev(31)–Rx_Lev(n)–16, between – 3 and + 248 – 95.5 dBm Rx_Lev(31)–Rx_Lev(n)–17, between – 3 and + 249 – 96.5 dBm Rx_Lev(31)–Rx_Lev(n)–18, between – 3 and + 250 – 97.5 dBm Rx_Lev(31)–Rx_Lev(n)–19, between – 3 and + 251 – 98.5 dBm Rx_Lev(31)–Rx_Lev(n)–20, between – 3 and + 2




41 –88.5 dBm42 –89.5 dBm Rx_Lev(41)–Rx_Lev(n)–1, between –3 and +243 –90.5 dBm Rx_Lev(41)–Rx_Lev(n)–2, between –3 and +244 –91.5 dBm Rx_Lev(41)–Rx_Lev(n)–3, between –3 and +245 –92.5 dBm Rx_Lev(41)–Rx_Lev(n)–4, between –3 and +246 –93.5 dBm Rx_Lev(41)–Rx_Lev(n)–5, between –3 and +247 –94.5 dBm Rx_Lev(41)–Rx_Lev(n)–6, between –3 and +248 –95.5 dBm Rx_Lev(41)–Rx_Lev(n)–7, between –3 and +249 –96.5 dBm Rx_Lev(41)–Rx_Lev(n)–8, between –3 and +250 –97.5 dBm Rx_Lev(41)–Rx_Lev(n)–9, between –3 and +251 –98.5 dBm Rx_Lev(41)–Rx_Lev(n)–10, between –3 and +252 –99.5 dBm Rx_Lev(41)–Rx_Lev(n)–11, between –3 and +253 –100.5 dBm Rx_Lev(41)–Rx_Lev(n)–12, between –3 and +254 –101.5 dBm Rx_Lev(41)–Rx_Lev(n)–13, between –3 and +255 –102.5 dBm Rx_Lev(41)–Rx_Lev(n)–14, between –4 and +256 –103.5 dBm Rx_Lev(41)–Rx_Lev(n)–15, between –4 and +257 –104.5 dBm Rx_Lev(41)–Rx_Lev(n)–16, between –4 and +258 –105.5 dBm Rx_Lev(41)–Rx_Lev(n)–17, between –4 and +259 –106.5 dBm Rx_Lev(41)–Rx_Lev(n)–18, between –4 and +260 –107.5 dBm Rx_Lev(41)–Rx_Lev(n)–19, between –4 and +261 –108.5 dBm Rx_Lev(41)–Rx_Lev(n)–20, between –4 and +2

Note: It is not necessary for the MS to report the RXLEV values below –102.5 dBm for GSM or below –100.5 dBm for DCS. If it does report anumber below these values, the value must be less than 8 for GSMand less than 10 for DCS.

4.7.4 Absolute Accuracy of Rx Level Measurements on Different ARFCNs Test Procedures

This test verifies RSSI absolute readings. The reported Rx level is related to thesignal strength by the following equation:



Rx level = 110.5 + signal strength

Where the signal strength is the amplitude of the desired signal at the antenna indBm.

4.7.4.1 GSM BandThe following test procedures apply:

Note: This test must be performed at temperature and supply voltage extremes.


2. Enter an offset in the HP8922M configuration screen to compensate for this loss.3. Add the loss as a negative number.4. Set the HP8922M signal strength to – 48.5 dBm.5. Set the Tx power level to maximum.6. Initiate a call using the H8922M at GSM channel 1.7. Record the RXLEV value as displayed on the cell control screen for channels 1,

20, 40, 62, 80, 100, and 124.8. Lower the signal strength by 10 dB.9. Repeat step 7.10. Continue to lower the signal strength by 10 dB and record the RXLEV values on

all the channels until the signal strength is at – 88.5 dBm.11. Subtract the RXLEV reading from the expected RXLEVEL reading at each

signal strength level for each of the seven reported RX LEV readings.

The absolute value of this number must be within the limits specified in Table 4-17.

Table 4-17. Limits For Absolute Rx Level Performance

Signal Strength (dBm) Limit Level–48.5 ABS(Rx_Lev–62) ≤6 for normal and extreme conditions–58.5 ABS(Rx_Lev–52) ≤6 for normal and extreme conditions–68.5 ABS(Rx_Lev–42) ≤6 for normal and extreme conditions–78.5 ABS(Rx_Lev–32) ≤4 for normal ≤6 for extreme conditions–88.5 ABS(Rx_Lev–22) ≤4 for normal and ≤6 for extreme conditions

Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Acronyms

101452A Conexant Proprietary A-iMarch 30, 2001

Appendix A. Acronyms

AARFCN Absolute Radio Frequency Channel

Number

BBER Bit Error RateBCCH Broadcast Control ChannelBW bandwidth

CCW Continuous Wave

DDCS Digital Cellular SystemDUT Device Under Test

EEGSM Extended GSMEQ Equalizer

FFER Frame Error Rate

GGMSK Gaussian Minimum-Shift KeyingGSM Global System for Mobile communications

HHT Hilly Terrain

Kkm/h kilometers per hour

LLNA Low Noise Amplifier

MMM Mobility ManagementMS Mobile Station

Pppm parts per million

RRA Rural AreaRF radio frequencyRMS root mean square

TTA Type ApprovalTCH/FS Traffic Channel-Full-Rate SpeechTDMA Time Division Multiple AccessTU Urban Area

Acronyms GSM MMI API Software Programmer’s Reference Manual

A-ii Conexant Proprietary 101452AMarch 30, 2001

This page is intentionally blank.

Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Glossary

101452A Conexant Proprietary B-iMarch 30, 2001

Appendix B. GlossaryDefinitions of commonly used terms follow.

Term DefinitionAdaptive power control Automatic control of the O/P power so that matches to the desired value. This level is

determined and stored in the radio during the initial factory calibration.Automatic power control The waveform that controls the transmitter ramp up and ramp down to ensure that

output power and RF spectrum due to switching transients are in compliance.Adjacent channel selectivity A measure of the capability of the receiver to receive a wanted signal without

exceeding a given degradation due to the presence of an unwanted modulated signalin the adjacent channel

ARFCN The channel to which the radio is assignedBlocking The receiver’s ability to receive a wanted modulated signal in the presence of an

unmodulated interferer without exceeding a given degradationCo-channel rejection A measure of the capability of the receiver to receive a wanted signal without

exceeding a given degradation due to the presence of an unwanted modulated signalConducted spurious emissions Spurs present at the antenna connector at frequencies other than the carrier and

sidebands associated with normal modulationDCS transmit band 1710 to 1785 MHzExtreme conditions The DC supply voltage, that is, 3.2 V to 3.75 V, and temperature range, that is,

- 10 °C to + 55 °C, over which the radio must be able to operate. 10°C is padded toeach constraint, that is, - 20 °C to + 65 °C, to test design robustness.

Frequency offset A measure of the distance in MHz away from a carrier signalGate delay The delay from TX_EN2 to bit 92 of the burstIntermodulation attenuation The ratio in dBs of the power level of the wanted signal to the power level of the

highest intermodulation componentIntermodulation rejection The measure of the receiver’s ability to receive a wanted modulated signal in the

presence of two or more unwanted signals with a specific frequency relationship tothe wanted signal

Modulation spectrum limits The specific limit set by the GSM committee to ensure compliance for the spectrumoccupied by the modulated signal at various frequency offsets from the carrier

Nominal output power The measure of the amplitude of the transmitter output at room temperature andnominal supply

Output RF spectrum due tomodulation

The relationship between the frequency offset from the carrier and the power,measured in a specified bandwidth and time, produced by the MS due to the effectsof modulation

Output RF spectrum due toswitching transients

The relationship between the frequency offset from the carrier and the power,measured in a specified BW and time, produced by the MS due to the effects ofpower ramping. Sometimes referred to as “spectral splatter”.

Power class The classification of the MS related to the maximum transmitter output powercapability

Power control level The numeric expression defining the absolute transmit power level at which the MS isoperating

Radio propagation conditionprofiles

GSM 05.05 multipath propagation models as follows: Static, Rural Area (RA), HillyTerrain (HT), Urban Area (TU), and Equalization Test (EQ)

Signal strength The desired signal amplitude at the antenna in dBmTransmit burst timing The transmitted RF power envelope with respect to timeTransmitter output power The average value of the power delivered to the antenna over the useful part of the

burst

Glossary Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

B-ii Conexant Proprietary 101452AMarch 30, 2001


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Allocated Radio Frequency Channel Number

101452A Conexant Proprietary C-iMarch 30, 2001

Appendix C. Allocated Radio Frequency Channel NumberThe ARFCN is the channel to which the radio is assigned. Use Table C-1 todetermine which ARFCN to use for the tests described in this document.

Table C-1. ARFCN Selection Criteria19

Term GSM DCSLow AFRCN Range 1 to 5 513 to 523Mid AFRCN Range 60 to 65 690 to 710High AFRCN Range 120 to 124 874 to 884


Allocated Radio Frequency Channel Number Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

C-ii Conexant Proprietary 101452AMarch 30, 2001


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Extreme Conditions

101452A Conexant Proprietary D-iMarch 30, 2001

Appendix D. Extreme Conditions“Extreme conditions” refers to the DC supply voltage and temperature range overwhich the radio must be able to operate. For the Conexant chipset solution, theextreme supply voltage conditions are defined as 3.2 V to 3.75 V. The extremetemperature conditions are defined as – 10 °C to + 55 °C. The temperature 10 °C ispadded to each constraint to test design robustness. During tests requiring “extremeconditions,” the temperature and voltage should be varied as in Table D-1.

Table D-1. Temperature and Voltage Test Conditions

Test CaseCondition 1 2 3 4

Temperature (°C) + 65 + 65 - 20 - 20Voltage (V) 3.75 3.2 3.75 3.2

Extreme Conditions Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

D-ii Conexant Proprietary 101452AMarch 30, 2001


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Channel Numbers

101452A Conexant Proprietary E-iMarch 30, 2001

Appendix E. Channel NumbersThe ARFCN, see Appendix C, designates the carrier frequency. Table E-1 illustrateshow MS channel numbers and carrier frequencies are related to each other.

Table E-1. Relationship Between MS Channel Numbers and Carrier Frequencies20

Band Transmitter Frequency Channel Number Receive FrequencyGSM900 FTx(n) = 890 + 0.2n 1 ≤ n ≤ 124 FRx(n) = FTx(n) + 45EGSM900 FTx(n) = 890 + 0.2n

FTx(n) = 890 + 0.2n (n – 1024)0 ≤ n ≤ 124

975 ≤ n ≤ 1023FRx(n) = FTx(n) + 45

DCS1800 FTx(n) = 1710.2 + 0.2n (n – 512) 512 ≤ n ≤ 885 FRx(n) = FTx(n) + 95DCS1900 FTx(n) = 1850.2 + 0.2n (n – 512) 512 ≤ n ≤ 810 FRx(n) = FTx(n) + 80


Channel Numbers Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

E-ii Conexant Proprietary 101452AMarch 30, 2001


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Propagation Conditions

101452A Conexant Proprietary F-iMarch 30, 2001

Appendix F. Propagation ConditionsRadio propagation conditions refer to GSM 05.05 multipath propagation models.They are expressed by the following typical profiles:

• Static• Rural Area (RA)• Hilly Terrain (HT)• Urban Area (TU)• Equalization Test (EQ)

The non-static profiles are also related to typical MS speeds of movement expressedin kilometers per hour (km/h), for example, TU1,5, TU3, TU50, HT100, EQ50.

This document uses the following conventions:

Table F-1. Typical Profile Conventions21

Term For GSM900 Represents For DCS1800 RepresentsRA RA250 RA130HT HT100 HT100

TUhigh TU50 TU50TUlow TU3 TU1,5

EQ EQ50 EQ50

For tests using ARFCN ranges, use Table F-2.

Table F-2. ARFCN Range Test Profiles21

Term GSM900 EGSM900 DCS1800Low ARFCN range 1 to 5 975 to 980 513 to 523Mid ARFCN range 60 to 65 60 to 65 690 to 710High ARFCN range 120 to 124 120 to 124 874 to 884


Propagation Conditions Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

F-ii Conexant Proprietary 101452AMarch 30, 2001


Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Output Power

101452A Conexant Proprietary G-iMarch 30, 2001

Appendix G. Output Power22

The MS maximum output power and lowest control level shall be according to itspower class as defined in Table G-1.

Table G-1. MS Maximum Output Power and Lowest Control Level

Nominal Max Output PowerTolerance (dB) for

ConditionsPower Class GSM900 DCS1800 DCS1900 Normal Extreme

1 - 1 W (30 dBm) 1 W (30 dBm) ± 2 ± 2.52 8W (39 dBm) 0.25 W (24 dBm) 0.25 W (24 dBm) ± 2 ± 2.53 5W (37 dBm) 4 W (36 dBm) 2 W (33 dBm) ± 2 ± 2.54 2W (33 dBm) ± 2 ± 2.55 0.8W (29 dBm) ± 2 ± 2.5

Note: The lowest nominal output power for a GSM900 MS is 5 dBm. The lowest nominal outputpower for all classes of DCS1800 or DCS900 is 0 dBm.

The different power control levels needed for adaptive power control, seeGSM 05.08, have nominal output power as defined in Table G-2. This starts from thepower control level for the lowest nominal output power up to the power controllevel for the maximum nominal output power corresponding to the class of theparticular MS as defined in Table G-1. Whenever a power control level commandsthe MS to use a nominal output power equal to or greater than the maximum nominaloutput power for the power class of the MS, the nominal output power transmittedshall be the maximum nominal output power for the MS class. The tolerancespecified for that power class applies, see Table G-2.

Table G-2. GSM900 Nominal Output Power and Tolerance Conditions

Tolerance (dB) forConditions

Tolerance (dB) forConditionsPower

Control Level

NominalOutput Power

(dBm) Normal ExtremePower

Control Level

NominalOutput Power

(dBm) Normal Extreme0-2 39 ± 2 ± 2.5 11 21 ± 3 ± 43 37 ± 3 ± 4 12 19 ± 3 ± 44 35 ± 3 ± 4 13 17 ± 3 ± 45 33 ± 3 ± 4 14 15 ± 3 ± 46 31 ± 3 ± 4 15 13 ± 3 ± 47 29 ± 3 ± 4 16 11 ± 5 ± 68 27 ± 3 ± 4 17 9 ± 5 ± 69 25 ± 3 ± 4 18 7 ± 5 ± 6

10 23 ± 3 ± 4 19-31 5 ± 5 ± 6Note: The following relationship exists between nominal power (dBm) and the power control level:

nominal output power (dBm) = 43 – 2 x power level for power levels 2 ≤ power level ≥ 19.


Output Power Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification

G-ii Conexant Proprietary 101452AMarch 30, 2001

Table G-3. DCS1800 Nominal Output Power and Tolerance Conditions



PowerControlLevel

NominalOutput Power

(dBm) Normal Extreme

PowerControlLevel

NominalOutput Power

(dBm) Normal Extreme29 36 ± 2 ± 2.5 7 16 ± 3 ± 430 34 ± 3 ± 4 8 14 ± 3 ± 431 32 ± 3 ± 4 9 12 ± 3 ± 50 30 ± 3 ± 4 10 10 ± 3 ± 51 28 ± 3 ± 4 11 8 ± 3 ± 52 26 ± 3 ± 4 12 6 ± 4 ± 53 24 ± 3 ± 4 13 4 ± 4 ± 54 22 ± 3 ± 4 14 2 ± 5 ± 65 20 ± 3 ± 4 15-28 0 ± 5 ± 66 18

Note: For DCS1800, the power control levels 29, 30, and 31 are not used when transmitting the parameterMS_TXPWR_MAX_CCH on BCCH, for cross phase compatibility reasons. If levels greater than 30dB are required from the MS during a random access attempt, then these shall be decoded fromparameters on the BCCH as described in GSM 05.08.

Furthermore, the difference in output power actually transmitted by the MS betweentwo power control levels where the difference in nominal output power indicates anincrease of 2 dB, taking into account the restrictions due to power class, shall be– 2 ± 1.5 dB.

Note: A 2 dB nominal difference in output power can exist for non-adjacentpower control levels. The following examples apply: power control levels18 and 22 for GSM900, power control levels 31 and 0 for class 3 DCS1800,and power control levels 3 and 6 for class 4 GSM900.

The base transmitter may require a change from any power control level to any powercontrol level.

Table G-4. PCS1900 Nominal Output Power and Tolerance Conditions

Tolerance (dB) forconditions

Tolerance (dB) forconditions

PowerControlLevel

NominalOutput Power

(dBm) Normal Extreme

PowerControlLevel

NominalOutput Power

(dBm) Normal Extreme22-29 Reserved Reserved Reserved 7 16 ± 3 ± 4

30 33 ± 2 ± 2.5 8 14 ± 3 ± 431 32 ± 2 ± 2.5 9 12 ± 4 ± 50 30 ± 3 (Note) ± 4 (Note) 10 10 ± 4 ± 51 28 ± 3 ± 4 11 8 ± 4 ± 52 26 ± 3 ± 4 12 6 ± 4 ± 53 24 ± 3 (Note) ± 4 (Note) 13 4 ± 4 ± 54 22 ± 3 ± 4 14 2 ± 5 ± 65 20 ± 3 ± 4 15 0 ± 5 ± 66 18 ± 3 ± 4 16-21 Reserved Reserved Reserved

Note: Tolerance for MS Power Classes 1 and 2 is ± 2 dB nominal and ± 2.5 dB extreme at Power ControlLevels 0 and 3 respectively.

Selected Transmitter/Receiver Test Procedures from the GSM 11.10-1 Specification Output Power

101452A Conexant Proprietary G-iiiMarch 30, 2001

The output power actually transmitted by the MS at each of the power control levelsshall form a monotonic sequence. The interval between power steps shall be2 dB ± 1.5 dB except for the step between power control levels 30 and 31 where theinterval is 1 dB ± 1 dB.

gsm 11-10 test procedures

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