RSS-129 - 800 MHz Dual-Mode CDMA Cellular Telephones - Spectrum Management and Telecommunications

Spectrum Management and Telecommunications

8. Transmitter Tests (CDMA Mode)

Test results are to be presented in graphical form wherever possible. The graph shall also include the specification limits. If the RF output power is internally adjustable or remotely controllable, set or control it to the maximum rated power of the range for which equipment certification is sought.

8.1 Unwanted Emissions

Unwanted emissions are emissions on a frequency or frequencies outside the necessary bandwidth which result from the modulation process, from spurious emissions and harmonics.

8.1.1 Unwanted Emissions from Mobile Stations

Method of Measurement

The spectrum of the transmitter shall be determined with a spectrum analyser of resolution bandwidths given in Table 8.1, in the average power mode.

Modulate the transmitter with a pseudo-random 9600 bps bit stream.

Set the mobile output power to -13 dBm/1.23 MHz as measured at the mobile station antenna connector.

Sweep the spectrum analyser over a frequency range from the lowest frequency internally generated or used in the device (local oscillator, intermediate or carrier frequency) up to the 5th harmonic of the highest frequency generated or used.

Minimum Standard

The spurious emissions shall not exceed the limits in Table 8.1, where dBc is dB relative to the transmitter mean output power.
The mean power of emissions in the mobile station receive band (869-894 MHz) shall be attenuated to a level not to exceed -80 dBm/1.23 MHz at the transmit antenna connector.
In any 30 kHz outside the cellular band, the attenuation shall be at least 43+10 Log₁₀ (mean output power in watts) dB.

Table 8.1
Mobile Station Spurious Emission Limits When Transmitting
Col. 1	Col. 2 : Centre frequency offset by greater than 900 kHz for 30 kHz bandwidth or greater than 1.385 MHz for 1 MHz bandwidth. #	Col. 3: Centre frequency offset by greater than 1.98 MHz for 30 kHz bandwidth or greater than 2.465 MHz for 1 MHz bandwidth. #
Spurious emissions not to exceed (a), or both (b) and (c), whichever is less stringent.	(a) -42 dBc/30 kHz (b) -60 dBm/30 kHz (c) -55 dBm/ MHz	(a) -54 dBc/30 kHz (b) -60 dBm/30 kHz (c) -55 dBm/ MHz

# See 5.2(e).
Note: In Table 8.1, the dBm values are to be measured at the antenna connector.

8.1.2 Unwanted Emissions from Base Stations

Method of Measurement

Same as 8.1.1.

Minimum Standard

Suppression inside cellular band: For all base station transmit frequencies allocated to the same operator system, the total spurious emissions in any 30 kHz band shall be attenuated below the mean output power level in accordance with the following schedule:
1. for all offset frequencies greater than 750 kHz from the CDMA centre frequency, at least 45 dB.
2. for all offset frequencies greater than 1.98 MHz from the CDMA centre frequency, at least 60 dB.
3. for all offset frequencies not allocated to the same operator system, at least 60 dB or -13 dBm, whichever is less stringent.
In any 30 kHz outside the cellular band, the attenuation shall be at least 43+10 Log₁₀ (mean output power in watts) or 70, dB, whichever is the less stringent.

9. Output Power and Frequency Stabilities (CDMA Mode)

9.1 Permissible Output Powers

Table 9.1 lists the permissible radiated powers from mobile stations. For a BASE station transmitter, the rated output power is to be stated by the manufacturer.

Table 9.1
Effective Radiated Power (ERP) at Maximum Output Power for Mobile Stations
Mobile station class. Note 1.	Minimum ERP	Maximum ERP
I	1 dBW (1.25 watts)	8 dBW (6.3 watts)
II	-3 dBW (0.5 watt)	4 dBW (2.5 watts)
III	-7 dBW (0.2 watt)	0 dBW (1.0 watt); Note 2

where ERP is with respect to a half-wave dipole.

Note 1: Typically, Classes I, II, and III represent equipment for vehicle, transportable and hand-held, respectively.

Note 2: For class III, the ERP (or output power) at maximum output power may drop by 2 dB at +60°C.

9.2 Method of Measurement

This is similar to section 7 for the analogue mode, except that for output power measurements, modulate the transmitter with a pseudo-random 9600 bps bit stream. Further information on testing methods may be found in TIA/EIA IS-97 for BASE stations and TIA/EIA IS-98 for Mobile stations.

9.2.1 Minimum Standard for Frequency Stability (Mobile and Base Stations)

The RF carrier frequency, when tested over the temperature range of -30°C to +50°C, or over the supply voltage range of ±15% from the nominal value, but non-accumulatively, shall not depart from the reference frequency (reference frequency is the frequency at +20°C and rated supply voltage) in excess of 5x10^-8(0.000005%), i.e. non-accumulatively. (Note: This frequency stability is required for satisfactory soft-handoff functions).

In addition, the mobile station transmit carrier frequency shall be 45.0 MHz ±300 Hz lower than the frequency of the base station transmit carrier as measured at the mobile station receiver. A suitable method of measurement is described in TIA/EIA IS-98.

9.2.2 Minimum Standard for Output Power (Mobile Station)

The effective radiated power (ERP) at maximum output power, when tested over the temperature range of -30°C to +60°C, and over the supply voltage range of ±10 % from the nominal value, accumulatively (using the antenna gain recommended by the mobile manufacturer) shall not exceed the limits in Table 9.1.

9.2.3 Minimum Standard for Output Power (Base Station)

The output power shall be capable of being adjusted to within ±1.0 dB of the manufacturer's rated power. Note: There is no output power stability test for base stations.

9.3 Standby Output Power Measurement (Mobile Station)

The mobile station shall disable its transmitter except when transmitting an access probe when in the System Access State or when in the Mobile Station Control on the Traffic Channel State.

Minimum Standard

When the transmitter is disabled, the output noise density of the mobile station shall not exceed -60 dBm/1.23 MHz (or -61 dBm/MHz) for all frequencies within the mobile station's transmit band between 824 and 849 MHz.

9.4 Minimum Controlled Output Power (Mobile Station)

The output power of a mobile transmitter shall be tested with both closed loop and open loop power control functions set to minimum.

Minimum Standard

The mean output power of the mobile station shall not exceed -50 dBm/1.23 MHz (-51 dBm/MHz) for all frequencies within ±615 kHz of the centre frequency.

10. Receiver Spurious Emissions

Radiation measurement is the standard method (with the device's antenna in place).

The receiver shall be operated in the normal receive mode near the mid-point of the band over which the receiver is designed to operate.

Radiation measurements are to be performed using a calibrated open-area test site. A description of the method of measurement that is acceptable to Industry Canada is found in RSS-212.
But as an alternative, when the antenna is detachable, the receiver spurious signal may be measured by replacing the antenna with a spectrum analyser of internal resistance equal to the impedance specified for the antenna.

In either method, the search for spurious emissions shall be from the lowest frequency internally generated or used in the receiver (local oscillator frequency, intermediate frequency or carrier frequency), or 30 MHz, whichever is the higher, to at least 3 times the highest tunable and local oscillator frequencies.

Minimum Standard (Mobile Stations)

No spurious output signals appearing at the antenna terminals shall exceed 2 nanowatts per any 4 kHz spurious frequency in the band 30-1000 MHz or 5 nanowatts above 1 GHz.
No spurious output signals appearing at the antenna terminals and falling within the mobile station receive band (869-894 MHz) shall exceed 22.4 uV across 50 ohms, or equivalent output power of -80 dBm/30 kHz.
No spurious output signals appearing at the antenna terminals and falling within the mobile station transmit band (824-849 MHz) shall exceed 224 uV across 50 ohms, or equivalent output power of -60 dBm/30 kHz.
Except for the provisions of (a) and (b), all spurious emissions shall comply with the limits of Table 10.1. The resolution bandwidth of the spectrum analyser shall be 100 kHz for spurious emission measurements below 1.0 GHz and 1.0 MHz for measurements above 1.0 GHz.

Table 10.1
Spurious Frequency (MHz)	Field Strength (microvolts/m) at 3 metres
30-88	100
88-216	150
216-960	200
960-1610	500
Above 1610	1000

Minimum Standard (Base Station)

Same limits as (a) and (d) for mobile stations.

11. Exposure of Humans to RF Fields

Before equipment certification is granted, the procedures of RSS-102 must be followed concerning exposure of humans to RF fields.

Note: A cordless-mode cellular base station (CCBS) (section 5.15) is considered a mobile station for the purpose of RSS-102.

12. Compliance with Cellular System Compatibility Standard

Technical requirements for compatibility are outlined in the TIA/EIA IS-95 document. An attestation shall be provided by the applicant that the equipment submitted for certification under this RSS complies with the requirements of the Compatibility Standard. Interoperability tests with other proven manufacturers' base stations or mobile stations (as appropriate) are also required. Details of the test, the test facility location, the date of the test, the testing officer's phone and fax numbers are to accompany an attestation that the equipment model requiring certification has been tested and found fully interoperable.

13. Licensing Requirements

The equipment is subject to licensing. Antenna gains (or EIRP limits) and height restrictions, if any, may be specified in the licence. For additional information regarding the licensing of these devices, please contact the local Industry Canada Office.

14. Equipment Certification and Test Report Submission

The test report, complete with measurement results, that addresses the requirements of this Standard, is to be submitted with the application for certification of a transmitter. For receiver certification, a detailed test report is not necessary; it is only required to report the receiver tuning range or ranges, and the spurious emission level.

The application for certification should be prepared in accordance with RSP-100 and sent to:

Chief, Certification and Engineering Bureau
Industry Canada
1241 Clyde Avenue
Ottawa, Ontario
Canada, K2C 1Y3
Tel: (613) 952-3200 / Fax: (613) 952-1088
E-mail: Corey.bob@ic.gc.ca

Issued under the authority of the Minister of Industry

R.W. McCaughern
Director General
Spectrum Engineering

Annex A: Optional Receiver Standards (Analogue Mode)

A1. The receiver tests described in this annex are for the analogue mode. The tests are optional and therefore test results are not required to be submitted to the Department.

Although they are voluntary tests, compliance to the standards in this Annex is recommended in order to minimize potential interference from transmitters operating in adjacent bands. Frequency assignments on adjacent bands will be based upon engineering considerations compatible with the standards in this Annex. Therefore, cellular receivers not conforming to this Annex operate on a "no-protection" basis.

A2. RF Sensitivity

The usable sensitivity of the receiver is the RF level of the input signal modulated with a 1 kHz frequency to ±8 kHz peak frequency deviation that will result in 12 dB SINAD (C-message weighted), at the audio output of the receiver. SINAD is defined as the ratio (in dB) of the Signal plus Noise plus Distortion to the Noise plus Distortion.

Method of Measurement

Enable the expander and the C-message weighting filter. Terminate the audio output of the receiver in the load specified by the manufacturer, and make SINAD measurements using a distortion meter.
Apply a -50 dBm RF signal with 1000 Hz modulation at ±8 kHz peak frequency deviation to the receiver antenna input terminals.
Connect a distortion meter with a switchable 1000 Hz notch filter to the receiver audio output terminals.
Reduce the input signal level until the SINAD is 12 dB. The input RF signal level at this point defines the receiver sensitivity.
SINAD is obtained by first measuring the composite of the audio signal with its noise and distortion components, next notching the audio signal with a 1000-Hz notch filter, and then measuring just the noise and distortion components.
If a mobile station cannot be measured using the method of measurement described above, the sensitivity may be measured by a radiated measurement. Documentation shall be provided as to the basis of the measurement used.

Minimum Standard

The RF signal input level measured across the receiver antenna terminals shall not be more than -113 dBm.

A3. Adjacent and Second Adjacent Channel Selectivities and Desensitizations

The adjacent channel selectivity and desensitization of a receiver is a measure of its ability to receive a modulated input desired signal on its assigned channel frequency in the presence of a second modulated input undesired signal frequency spaced either one channel (30 kHz) above or one channel below the assigned channel.

The second adjacent channel selectivity and desensitization of a receiver is a measure of its ability to receive a modulated input desired signal on its assigned channel frequency in the presence of a second modulated input undesired signal frequency spaced either two channels (60 kHz) above or two channels below the assigned channel frequency.

Method of Measurement

Terminate the audio output of the receiver in its normally intended load, disable the expander, and make measurements using a C-message weighted filter.
Connect two RF signal generators equally coupled to the receiver antenna input terminals through a suitable matching network.
Switch the second generator (undesired signal) off.

Set the first RF (desired) signal generator to the assigned channel frequency and modulate it with a 1000 Hz tone to ±8 kHz peak frequency deviation.
Adjust the first RF signal generator level to produce a 12 dB SINAD measurement at the audio output terminal of the receive path. Record the RF signal level.
Increase this first RF signal generator output by 3 dB.
Set the frequency of the second RF signal generator to 30 and 60 kHz (in turn) above the frequency of the first RF signal generator and modulate it with a 400 Hz tone to ±8 kHz peak frequency deviation.
Adjust the level of the second RF signal generator to reduce the desired signal SINAD back to 12 dB. Record the second generator (undesired) signal level.
Repeat steps (e) and (f) with the frequency of the second RF signal generator set to 30 and 60 kHz (in turn) below the frequency of the first RF signal generator.
Calculate the ratios, in dB, of the undesired signal levels measured in steps (e), (f) and (g) to the reference level obtained in (c). For each case of adjacent and second adjacent channel undesired input signals, the smaller of these ratios for the above- and below-channel undesired signals is the minimum selectivity.

Minimum Standard

The minimum adjacent channel selectivity shall be 16 dB. The minimum second adjacent channel selectivity shall be 60 dB.

A4. Receiver Spurious Response Attenuation

The receiver spurious response attenuation is a measure of the receiver's ability to discriminate between the assigned input signal frequency and an undesired signal at any other frequency to which it is responsive, i.e. from the lowest intermediate frequency or radio frequency generated in the equipment to 2600 MHz, except sub-harmonics of the received channel band.

Minimum Standard (Analogue)

The spurious response attenuation (ratio of the undesired to the desired signal) should be at least 60 dB for all undesired signals 60 kHz or more removed from the assigned input signal frequency.

A5. Intermodulation Spurious Response Attenuation

The intermodulation spurious response attenuation of the receiver is the measure of its ability to receive a modulated input RF signal frequency in the presence of two unmodulated interfering signals so separated from the assigned input signal frequency and from each other that the n'th order mixing of the two undesired signals can occur in the non-linear elements of the receiver, producing a third signal whose frequency is equal to that of the assigned input RF signal frequency.

Minimum Standard (Analogue)

All intermodulation spurious responses should be attenuated by at least 65 dB for mobile and base stations.

First