SIST ETS 300 577 E13:2003

Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and reception (GSM 05.05 version 4.21.1)

SUBJECT Improvement to DCS MS sensitivity

Digitalni celični telekomunikacijski sistem (faza 2) – Radijsko oddajanje in sprejemanje (GSM 05.05, različica 4.21.1)

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.060.20 - Receiving and transmitting equipment
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 577 ed.13 (1998-06) - Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and reception (GSM 05.05 version 4.21.1)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 577 E13:2003
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±5DGLMVNRRGGDMDQMHLQ
VSUHMHPDQMH*60UD]OLþLFD
Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and
reception (GSM 05.05 version 4.21.1)
Ta slovenski standard je istoveten z: ETS 300 577 Edition 13
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 577 E13:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 577 E13:2003

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SIST ETS 300 577 E13:2003
EUROPEAN ETS 300 577
TELECOMMUNICATION June 1998
STANDARD Thirteenth Edition
Source: SMG Reference: RE/SMG-020505PRC
ICS: 33.020
Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
Digital cellular telecommunications system (Phase 2);
Radio transmission and reception
(GSM 05.05 version 4.21.1)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: [e-mail] - http://www.etsi.fr - http://www.etsi.org
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1998. All rights reserved.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
Contents
Foreword .5
1 Scope .7
1.1 Normative references .7
1.2 Abbreviations .8
2 Frequency bands and channel arrangement.8
3 Reference configuration .9
4 Transmitter characteristics.9
4.1 Output power .9
4.1.1 Mobile station .9
4.1.2 Base station.10
4.2 Output RF spectrum .11
4.2.1 Spectrum due to the modulation and wide band noise .12
4.2.2 Spectrum due to switching transients.15
4.3 Spurious emissions.16
4.3.1 Principle of the specification.16
4.3.2 Base transceiver station.17
4.3.3 Mobile station .18
4.4 Radio frequency tolerance.19
4.5 Output level dynamic operation .19
4.5.1 Base transceiver station.19
4.5.2 Mobile station .19
4.6 Phase accuracy .19
4.7 Intermodulation attenuation .20
4.7.1 Base transceiver station.20
4.7.2 Intra BTS intermodulation attenuation.20
4.7.3 Intermodulation between MS (DCS 1 800 only) .20
4.7.4 Mobile PBX (GSM 900 only).20
5 Receiver characteristics .21
5.1 Blocking characteristics .21
5.2 AM suppression characteristics.22
5.3 Intermodulation characteristics.23
5.4 Spurious emissions.23
6 Transmitter/receiver performance.23
6.1 Nominal error rates (NER).24
6.2 Reference sensitivity level .24
6.3 Reference interference level.24
6.4 Erroneous frame indication performance .25
6.5 Random access and paging performance at high input levels .26
Annex A (informative): Spectrum characteristics (spectrum due to the modulation).31
Annex B (normative): Transmitted power level versus time.35
Annex C (normative): Propagation conditions.36
C.1 Simple wideband propagation model .36
C.2 Doppler spectrum types .36
C.3 Propagation models .37

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
C.3.1 Typical case for rural area (RAx): (6 tap setting) . 37
C.3.2 Typical case for hilly terrain (HTx): (12 tap setting). 37
C.3.3 Typical case for urban area (TUx): (12 tap setting). 38
C.3.4 Profile for equalization test (EQx): (6 tap setting) . 38
Annex D (normative): Environmental conditions. 39
D.1 General. 39
D.2 Environmental requirements for the MSs . 39
D.2.1 Temperature. 39
D.2.2 Voltage . 39
D.2.3 Vibration . 40
D.3 Environmental requirements for the BSS equipment . 40
Annex E (normative): Repeater characteristics .41
E.1 Introduction. 41
E.2 Spurious emissions . 41
E.3 Intermodulation products . 42
E.4 Out of band gain . 42
History. 43

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) of the European Telecommunication Standards Institute (ETSI).
This ETS defines the requirements for transceivers operating in the 900 MHz and 1 800 MHz bands within
the digital cellular telecommunications system (Phase 2).
The specification from which this ETS has been derived was originally based on CEPT documentation,
hence the presentation of this ETS is not in accordance with the ETSI/PNE Rules.
Transposition dates
Date of adoption of this ETS: 5 June 1998
Date of latest announcement of this ETS (doa): 30 September 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 March 1999
Date of withdrawal of any conflicting National Standard (dow): 31 March 1999

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
1 Scope
This European Telecommunication Standard (ETS) defines the requirements for the transceiver of the
pan-european digital mobile cellular and personal communication systems operating in the 900 MHz and
1 800 MHz band (GSM 900 and DCS 1 800).
Requirements are defined for two categories of parameters:
- those that are required to provide compatibility between the radio channels, connected either to
separate or common antennas, that are used in the system. This category also includes parameters
providing compatibility with existing systems in the same or adjacent frequency bands;
- those that define the transmission quality of the system.
This ETS defines RF characteristics for the Mobile Station (MS) and Base Station System (BSS). The
BSS will contain either Base Transceiver Stations (BTS) or microcell base transceiver stations
(micro BTS). The precise measurement methods are specified in GSM 11.10 and GSM 11.2x series.
Unless otherwise stated, the requirements defined in this ETS apply to the full range of environmental
conditions specified for the equipment (see annex D).
In this ETS, some relaxations are introduced for GSM 900 mobile stations which fulfil the following
conditions:
- pertain to power class 4 or 5 (see subclause 4.1.1);
- not designed to be vehicle mounted (see GSM 02.06).
In this ETS, these mobile stations are referred to as "small MS".
NOTE: In this standard, a handheld which can be connected to a car kit is not considered to
be vehicle mounted.
Mobile stations may operate on more than one of the frequency bands specified in clause 2. These mobile
stations, defined in GSM 02.06, are referred to as "Multi band mobile stations" in this standard. Multi band
mobile stations shall meet all requirements for each of the bands supported. The relaxation on GSM 900
for a "small MS" are also valid for a multi band MS if it complies with the definition of a small MS.
The RF characteristics of repeaters are defined in annex E of this ETS. Annexes D and E are the only
sections of this ETS applicable to repeaters. Annex E does not apply to the MS or BSS.
1.1 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references, the
latest edition of the publication referred to applies.
[1] GSM 01.04 (ETR 100): "Digital cellular telecommunications system (Phase 2);
Abbreviations and acronyms".
[2] GSM 02.06 (ETS 300 504): "Digital cellular telecommunications system
(Phase 2); Types of Mobile Stations (MS)".
[3] GSM 05.01 (ETS 300 573): "Digital cellular telecommunications system
(Phase 2); Physical layer on the radio path General description".
[4] GSM 05.04 (ETS 300 576): "Digital cellular telecommunications system
(Phase 2); Modulation".

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[5] GSM 05.08 (ETS 300 578): "Digital cellular telecommunications system
(Phase 2); Radio subsystem link control".
[6] GSM 05.10 (ETS 300 579): "Digital cellular telecommunications system
(Phase 2); Radio subsystem synchronization".
[7] GSM 11.10 (ETS 300 607): "Digital cellular telecommunications system
(Phase 2); Mobile Station (MS) conformity specification".
[8] GSM 11.11 (ETS 300 608): "Digital cellular telecommunications system
(Phase 2); Specification of the Subscriber Identity Module - Mobile Equipment
(SIM - ME) interface".
[9] CCITT Recommendation O.153: "Basic parameters for the measurement of
error performance at bit rates below the primary rate".
[10] ETS 300 019-1-3: "Equipment Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-3: Classification
of environmental conditions Stationary use at weatherprotected locations".
[11] ETS 300 019-1-4: "Equipment Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-4: Classification
of environmental conditions Stationary use at non-weatherprotected locations".
1.2 Abbreviations
Abbreviations used in this ETS are listed in GSM 01.04 [1].
2 Frequency bands and channel arrangement
i) Standard or primary GSM 900 Band, P-GSM:
for Standard GSM 900 Band, the system is required to operate in the following frequency band:
890 - 915 MHz: mobile transmit, base receive;
935 - 960 MHz: base transmit, mobile receive.
ii) Extended GSM 900 Band, E-GSM (includes Standard GSM 900 band):
for Extended GSM 900 band, the system is required to operate in the following frequency band:
880 - 915 MHz: mobile transmit, base receive;
925 - 960 MHz: base transmit, mobile receive.
iii) DCS 1 800 Band:
or DCS 1 800, the system is required to operate in the following band:
1 710 - 1 785 MHz: mobile transmit, base receive;
1 805 - 1 880 MHz: base transmit, mobile receive.
NOTE: The term GSM 900 is used for any GSM system which operates in any 900 MHz band.
Operators may implement networks which operates on a combination of the frequency bands above to
support multi band mobile terminals which are defined in GSM 02.06.
The carrier spacing is 200 kHz.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
The carrier frequency is designated by the absolute radio frequency channel number (ARFCN). If we call
Fl(n) the frequency value of the carrier ARFCN n in the lower band, and Fu(n) the corresponding
frequency value in the upper band, we have:
P-GSM 900 Fl(n) = 890 + 0.2*n Fu(n) = Fl(n) + 45
  1 £ n £ 124
E-GSM 900 Fl(n) = 890 + 0.2*n Fu(n) = Fl(n) + 45
  0 £ n £ 124
Fl(n) = 890 + 0.2*(n-1024)
  975 £ n £ 1 023
DCS 1 800 Fl(n) = 1710.2 + 0.2*(n-512) Fu(n) = Fl(n) + 95
512 £ n £ 885
Frequencies are in MHz.
3 Reference configuration
The reference configuration for the radio subsystem is described in GSM 05.01.
The micro-BTS is different from a normal BTS in two ways. Firstly, the range requirements are much
reduced whilst the close proximity requirements are more stringent. Secondly, the micro-BTS is required
to be small and cheap to allow external street deployment in large numbers. Because of these differences
the micro-BTS needs a different set of RF parameters to be specified. Where the RF parameters are not
different for the micro-BTS the normal BTS parameters shall apply.
4 Transmitter characteristics
Throughout this section, unless otherwise stated, requirements are given in terms of power levels at the
antenna connector of the equipment. For equipment with integral antenna only, a reference antenna with
0 dBi gain shall be assumed.
The term output power refers to the measure of the power when averaged over the useful part of the burst
(see annex B).
The term peak hold refers to a measurement where the maximum is taken over a sufficient time that the
level would not significantly increase if the holding time were longer.
4.1 Output power
4.1.1 Mobile station
The mobile station maximum output power and lowest power control level shall be, according to its class,
as defined in the following table (see also GSM 02.06).
Power GSM 900 DCS 1 800 Tolerance (dB)
class Nominal Maximum Nominal Maximum for conditions
output output
power power normal extreme
1 - -  - - - - 1 W (30 dBm)
± 2 ± 2.5
2 8 W (39 dBm) 0.25 W (24 dBm)
± 2 ± 2.5
3 5 W (37 dBm) 4 W (36 dBm)
± 2 ± 2.5
4 2 W (33 dBm)
± 2 ± 2.5
5 0.8 W (29 dBm)
± 2 ± 2.5
NOTE: The lowest nominal output power for all classes of GSM 900 MS is
5 dBm and for all classes of DCS 1 800 MS is 0 dBm.
A multi band MS has a combination of the power class in each band of operation from the table above.
Any combination may be used.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
The different power control levels needed for adaptive power control (see GSM 05.08) shall have the
nominal output power as defined in the table below, starting from the power control level for the lowest
nominal output power up to the power control level for the maximum nominal output power corresponding
to the class of the particular mobile station as defined in the table above. Whenever a power control level
commands the MS to use a nominal output power equal to or greater than the maximum nominal output
power for the power class of the MS, the nominal output power transmitted shall be the maximum nominal
output power for the MS class, and the tolerance of ± 2 or 2.5 dB (see table above) shall apply.
GSM 900 DCS 1 800
Power Nominal Tolerance (dB) for Power Nominal Tolerance (dB) for
control Output power conditions control Output conditions
level (dBm) level power (dBm)
normal extreme normal extreme
0-2 39 29 36
± 2 ± 2.5 ± 2 ± 2.5
337 30 34
± 3 ± 4 ± 3 ± 4
435 31 32
± 3 ± 4 ± 3 ± 4
533 030
± 3 ± 4 ± 3 ± 4
631 128
± 3 ± 4 ± 3 ± 4
729 226
± 3 ± 4 ± 3 ± 4
827 324
± 3 ± 4 ± 3 ± 4
925 422
± 3 ± 4 ± 3 ± 4
10 23 520
± 3 ± 4 ± 3 ± 4
11 21 618
± 3 ± 4 ± 3 ± 4
12 19 716
± 3 ± 4 ± 3 ± 4
13 17 814
± 3 ± 4 ± 3 ± 4
14 15 912
± 3 ± 4 ± 4 ± 5
15 13 10 10
± 3 ± 4 ± 4 ± 5
16 11 11 8
± 5 ± 6 ± 4 ± 5
17 9 12 6
± 5 ± 6 ± 4 ± 5
18 7 13 4
± 5 ± 6 ± 4 ± 5
19-31 5 14 2
± 5 ± 6 ± 5 ± 6
15-28 0
± 5 ± 6
NOTE 1: For DCS 1 800, the power control levels 29, 30 and 31 are only used "in call" for power
control purposes. These levels are not used when transmitting the parameter TX PWR
MAX CCH, for cross phase compatibility reasons. If levels greater than 30 dBm are
required from the MS during a random access attempt, then these shall be decoded
from parameters broadcast on the BCCH as described in GSM 05.08.
Furthermore, the difference in output power actually transmitted by the MS between two power control
levels where the difference in nominal output power indicates an increase of 2 dB (taking into account the
restrictions due to power class), shall be +2 ± 1.5 dB. Similarly, if the difference in output power actually
transmitted by the MS between two power control levels where the difference in nominal output power
indicates an decrease of 2 dB (taking into account the restrictions due to power class), shall be
-2 ± 1.5 dB.
NOTE 2: A 2 dB nominal difference in output power can exist for non-adjacent power control
levels e.g. power control levels 18 and 22 for GSM 900; power control levels 31 and 0
for class 3 DCS 1 800 and power control levels 3 and 6 for class 4 GSM 900.
A change from any power control level to any power control level may be required by the base transmitter.
The maximum time to execute this change is specified in GSM 05.08.
4.1.2 Base station
The base station transmitter maximum output power, measured at the input of the BSS Tx combiner, shall
be, according to its class, as defined in the following table:

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
GSM 900 DCS 1 800
TRX Maximum TRX Maximum
power class output power power class output power
1 320 - (<640) W 1 20 - (<40) W
2 160 - (<320) W 2 10 - (<20) W
3 80 - (<160) W 3 5 - (<10) W
4 40 - (<80) W 4 2.5 - (<5) W
5 20 - (<40) W
6 10 - (<20) W
7 5 - (<10) W
8 2.5 - (<5) W
The micro-BTS maximum output power per carrier measured at the antenna connector after all stages of
combining shall be, according to its class, defined in the following table.
GSM 900 micro-BTS DCS 1 800 micro-BTS
TRX power Maximum output power TRX power Maximum output power
class class
M1 (>19) - 24 dBm  ((>0.08) - 0.25 W) M1 (>27) - 32 dBm  ((>0.5) - 1.6 W)
M2 M2 (>22) - 27 dBm  ((>0.16) - 0.5 W)
(>14) - 19 dBm  ((>0.03) - 0.08 W)
M3 (>9) - 14 dBm   ((>0.01) - 0.03 W) M3 (>17) - 22 dBm  ((>0.05) - 0.16 W)
The tolerance of the actual maximum output power of the BTS shall be ± 2 dB under normal conditions
and ± 2.5 dB under extreme conditions. Settings shall be provided to allow the output power to be reduced
from its maximum level in at least six steps of nominally 2 dB with an accuracy of ± 1 dB to allow a fine
adjustment of the coverage by the network operator. In addition, the actual absolute output power at each
static RF power step (N) shall be 2*N dB below the absolute output power at static RF power step 0 with a
tolerance of ± 3 dB under normal conditions and ± 4 dB under extreme conditions. The static RF power
step 0 shall be the actual output power according to the TRX power class.
As an option the BSS can utilize downlink RF power control. In addition to the static RF power steps
described above, the BSS may then utilize up to 15 steps of power control levels with a step size of 2 dB
± 1.5 dB, in addition the actual absolute output power at each power control level (N) shall be 2*N dB
below the absolute output power at power control level 0 with a tolerance of ± 3 dB under normal
conditions and ± 4 dB under extreme conditions. The power control level 0 shall be the set output power
according to the TRX power class and the six power settings defined above.
Network operators may also specify the BTS output power including any Tx combiner, according to their
needs.
4.2 Output RF spectrum
The specifications contained in this section apply to both BTS and MS, in frequency hopping as well as in
non frequency hopping mode, except that beyond 1 800 kHz offset from the carrier the BTS is not tested
in frequency hopping mode.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
Due to the bursty nature of the signal, the output RF spectrum results from two effects:
- the modulation process;
- the power ramping up and down (switching transients).
The two effects are specified separately; the measurement method used to analyse separately those two
effects is specified in GSM 11.10 and 11.20. It is based on the "ringing effect" during the transients, and is
a measurement in the time domain, at each point in frequency.
The limits specified hereunder are based on a 5-pole synchronously tuned measurement filter.
Unless otherwise stated, for the BTS, only one transmitter is active for the tests of this section.
4.2.1 Spectrum due to the modulation and wide band noise
The output RF modulation spectrum is specified in the following table. A mask representation of this
specification is shown in annex A. This specification applies for all RF channels supported by the
equipment.
The specification applies to the entire of the relevant transmit band and up to 2 MHz either side.
The figures in the table below, at the listed frequencies from the carrier (kHz), are the maximum level (dB)
relative to a measurement in 30 kHz on the carrier.
For the BTS, the power level is the "actual absolute output power" defined in subclause 4.1.2. If the power
level falls between two of the values in the table, the requirement shall be determined by linear
interpolation.

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ETS 300 577 (GSM 05.05 version 4.21.1): June 1998
a) GSM 900
Power Measurement bandwidth
level
(dBm) 30 kHz 100 kHz 100 kHz
MS and normal BTS Micro-
BTS
100 200 250 400 600 1 200 1 800 3 000‡·6 000‡·1 800
to to to to
<1 200 <1 800 <3 000 <6 000
+0.5 -30 -33 -60 -70 -73 -75 -75 -80‡ 43
41 +0.5 -30 -33 -60 -68 -71 -73 -73 -80
39 +0.5 -30 -33 -60 -66 -69 -71 -71 -80
37 +0.5 -30 -33 -60 -64 -67 -69 -69 -80 BTS
35 +0.5 -30 -33 -60 -62 -65 -67 -67 -80
+0.5 -30 -33 -60 -60 -63 -65 -65 -80 -70£ 33
+0.5 -30 -33 -60 -66 -66 -69 -71 -77‡ 39
37 +0.5 -30 -33 -60 -64 -64 -67 -69 -75 MS
35 +0.5 -30 -33 -60 -62 -62 -65 -67 -73
+0.5 -30 -33 -60 -60 -60 -63 -65 -71£ 33
b) DCS 1 800
Power Measurement bandwidth
level
(dBm) 30 kHz 100 kHz 100 kHz
MS and normal Micro-
BTS BTS
100 200 250 400 600 1 200 1 800‡6 000‡1 800
to to to
<1 200 <1 800 <6 000
+0.5 -30 -33 -60 -70 -73 -75 -80‡ 43
41 +0.5 -30 -33 -60 -68 -71 -73 -80
39 +0.5 -30 -33 -60 -66 -69 -71 -80
37 +0.5 -30 -33 -60 -64 -67 -69 -80 BTS
35 +0.5 -30 -33 -60 -62 -65 -67 -80 -76
+0.5 -30 -33 -60 -60 -63 -65 -80 -76£ 33
‡ 36 +0.5 -30 -33 -60 -60 -60 -71 -79
34 +0.5 -30 -33 -60 -60 -60 -69 -77
32 +0.5 -30 -33 -60 -60 -60 -67 -75 MS
30 +0.5 -30 -33 -60 -60 -60 -65 -73
28 +0.5 -30 -33 -60 -60 -60 -63 -71
26 +0.5 -30 -33 -60 -60 -60 -61 -69
+0.5 -33 -60 -60 -60 -59 -67£ 24
The specifications shall be met under the following measurement conditions.

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For BTS up to 1 800 kHz from the carrier and for MS in all cases:
Zero frequency scan, filter bandwidth and video bandwidth of 30 kHz up to 1 800 kHz from the carrier and
100 kHz beyond 1 800 kHz, with averaging done over 50 % to 90 % of the useful part of the transmitted
bursts, excluding the midamble, and then averaged over at least 200 such burst measurements. Above
1 800 kHz from the carrier only measurements centred on 200 kHz multiples are taken with averaging
over 50 bursts.
For BTS above 1 800 kHz from the carrier swept measurement with:
Filter and video bandwidth of 100 kHz, minimum sweep time of 75 ms, averaging over 200 sweeps. All
slots active, frequency hopping disabled.
When tests are done in frequency hopping mode, the averaging shall include only bursts transmitted when
the hopping carrier corresponds to the nominal carrier of the measurement. The specifications then apply
to the measurement results for any of the hopping frequencies.
The following exceptions and minimum measurement levels shall apply; all absolute levels in dBm shall
be measured using the same bandwidth as that used in the tables a) and b) above:
i) in the combined range 600 kHz to 6 MHz above and below the carrier, in up to three bands of
200 kHz width centred on a frequency which is an integer multiple of 200 kHz, exceptions at up to
-36 dBm are allowed;
ii) above 6 MHz offset from the carrie
...