SIST ETS 300 577 E4:2003
(Main)Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and reception (GSM 05.05)
Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and reception (GSM 05.05)
....
Digitalni celični telekomunikacijski sistem (faza 2) – Radijsko oddajanje in sprejemanje (GSM 05.05)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHP ID]D ±5DGLMVNRRGGDMDQMHLQ
VSUHMHPDQMH *60
Digital cellular telecommunications system (Phase 2) (GSM); Radio transmission and
reception (GSM 05.05)
Ta slovenski standard je istoveten z: ETS 300 577 Edition 4
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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN ETS 300 577
TELECOMMUNICATION January 1996
STANDARD Fourth Edition
Source: ETSI TC-SMG Reference: RE/SMG-020505PR3
ICS: 33.060.50
digital cellular telecommunications system, Global System for Mobile communications (GSM)
Key words:
Digital cellular telecommunications system (Phase 2);
Radio transmission and reception
(GSM 05.05)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
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 1996. All rights reserved.
New presentation - see History box
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
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: January 1996 (GSM 05.05 version 4.12.0)
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 .11
4.2.2 Spectrum due to switching transients.14
4.3 Spurious emissions.15
4.3.1 Principle of the specification.15
4.3.2 Base transceiver station.16
4.3.3 Mobile station .17
4.4 Radio frequency tolerance.18
4.5 Output level dynamic operation .18
4.5.1 Base transceiver station.18
4.5.2 Mobile station .18
4.6 Phase accuracy .18
4.7 Intermodulation attenuation .19
4.7.1 Base transceiver station.19
4.7.2 Intra BTS intermodulation attenuation.19
4.7.3 Intermodulation between MS (DCS 1800 only) .19
4.7.4 Mobile PBX (GSM 900 only).19
5 Receiver characteristics .20
5.1 Blocking characteristics .20
5.2 AM suppression characteristics.21
5.3 Intermodulation characteristics.22
5.4 Spurious emissions.22
6 Transmitter/receiver performance.22
6.1 Nominal error rates (NER).22
6.2 Reference sensitivity level .23
6.3 Reference interference level.23
6.4 Erroneous frame indication performance .24
Annex A (informative): Spectrum characteristics (spectrum due to the modulation).29
Annex B (normative): Transmitted power level versus time.33
Annex C (normative): Propagation conditions.34
C.1 Simple wideband propagation model .34
C.2 Doppler spectrum types .34
C.3 Propagation models .35
C.3.1 Typical case for rural area (RAx): (6 tap setting).35
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
C.3.2 Typical case for hilly terrain (HTx): (12 tap setting). 35
C.3.3 Typical case for urban area (TUx): (12 tap setting). 36
C.3.4 Profile for equalisation test (EQx): (6 tap setting) . 36
Annex D (normative): Environmental conditions. 37
D.1 General. 37
D.2 Environmental requirements for the MSs . 37
D.2.1 Temperature. 37
D.2.2 Voltage . 37
D.2.3 Vibration . 38
D.3 Environmental requirements for the BSS equipment . 38
Annex E (normative): Repeater characteristics .39
E.1 Introduction. 39
E.2 Spurious emissions . 39
E.3 Intermodulation products . 40
E.4 Out of band gain . 40
History. 41
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI).
This ETS defines the requirements for transceivers operating in the 900 MHz and 1800 MHz bands within
the digital cellular telecommunications system (Phase 2).
This ETS correspond to GSM technical specification, GSM 05.05 version 4.12.0.
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.
Reference is made within this ETS to GSM Technical Specifications (GSM-TSs) (NOTE).
NOTE: TC-SMG has produced documents which give the technical specifications for the
implementation of the European digital cellular telecommunications system.
Historically, these documents have been identified as GSM Technical Specifications
(GSM-TSs). These TSs may have subsequently become I-ETSs (Phase 1), or ETSs
(Phase 2), whilst others may become ETSI Technical Reports (ETRs). GSM-TSs are,
for editorial reasons, still referred to in GSM ETSs.
Transposition dates
Date of adoption of this ETS: 31 January 1996
Date of latest announcement of this ETS (doa): 30 April 1996
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 October 1996
Date of withdrawal of any conflicting National Standard (dow): 31 October 1996
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
1 Scope
This European Telecommunications 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
1800 MHz band (GSM 900 and DCS 1800).
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 11.20.
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 section 4.1.1);
- have a total weight less than 200 g (excluding battery);
- have a volume less than 500 cm (excluding battery).
In this standard, these mobile stations are referred to as "small MS".
The RF characteristics of repeaters are defined in Annex E of this ETS. Annex 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): "European digital cellular telecommunication system
(Phase 2); Abbreviations and acronyms".
[2] GSM 02.06 (ETS 300 504): "European digital cellular telecommunication system
(Phase 2); Types of Mobile Stations (MS)".
[3] GSM 05.01 (ETS 300 573): "European digital cellular telecommunication system
(Phase 2); Physical layer on the radio path General description".
[4] GSM 05.04 (ETS 300 576): "European digital cellular telecommunication system
(Phase 2); Modulation".
[5] GSM 05.08 (ETS 300 578): "European digital cellular telecommunication system
(Phase 2); Radio subsystem link control".
[6] GSM 05.10 (ETS 300 579): "European digital cellular telecommunication system
(Phase 2); Radio subsystem synchronisation".
[7] GSM 11.10 (ETS 300 607): "European digital cellular telecommunication system
(Phase 2); Mobile Station (MS) conformity specification".
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
[8] GSM 11.11 (ETS 300 608): "European digital cellular telecommunication 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; Environmental conditions and
Environmental tests for telecommunications equipment Part 1-3: Classification
of Environmental conditions Stationary use at weather protected locations".
[11] ETS 300 019-1-4: "Equipment engineering; Environmental conditions and
Environmental tests for telecommunications equipment Part 1-4: Classification
of Environmental conditions Stationary use at non-weather protected locations".
1.2 Abbreviations
Abbreviations used in this ETS are listed in GSM 01.04.
2 Frequency bands and channel arrangement
For GSM 900, the system is required to operate, at least, in the following frequency band (primary band
P-GSM 900):
890 - 915 MHz : mobile transmit, base receive
935 - 960 MHz : base transmit, mobile receive
For DCS 1800, the system is required to operate in the following frequency band:
1710 - 1785 MHz : mobile transmit, base receive
1805 - 1880 MHz : base transmit, mobile receive
Furthermore, in some countries, GSM 900 is allowed to operate in part of all of the following extension
band G1:
880 - 890 MHz : mobile transmit, base receive
925 - 935 MHz : base transmit, mobile receive
The carrier spacing is 200 kHz.
NOTE: The term GSM 900 is used for any GSM system which operates in any 900 MHz band.
P-GSM 900 band is the primary band for GSM 900. E-GSM 900 band includes the
primary band (P-GSM 900) and the extension band (G1).
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 1 ≤ n ≤ 124 Fu(n) = Fl(n) + 45
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 ≤ 1023
DCS 1800 Fl(n) = 1710.2 + 0.2*(n-512) Fu(n) = Fl(n) + 95
512 ≤ n ≤ 885
Frequencies are in MHz
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
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 1800 Tolerance (dB)
class Maximum output Maximum output for conditions
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 power control level for all classes of GSM 900 MS is
19 (5 dBm) and for all classes of DCS 1800 MS is 15 (0 dBm).
The different power 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 lowest power control level up to the
maximum output power corresponding to the class of the particular mobile station. Whenever a power
control level corresponds to the power class of the MS, the tolerance of ±2 or 2.5 dB (see above) shall
apply.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
GSM 900 DCS 1800
Power Output power Tolerance (dB) for Power Output power Tolerance (dB) for
control (dBm) conditions control (dBm) conditions
level level
normal extreme normal extreme
0 - - - - - 29 36 ± 2 ± 2.5
1 - - - - -
30 34 ± 3 ± 4
239 ± 2 ± 2.5
31 32 ± 3 ± 4
337 ± 3 ± 4
030 ± 3 ± 4
435 ± 3 ± 4
128 ± 3 ± 4
533 ± 3 ± 4
226 ± 3 ± 4
631 ± 3 ± 4
324 ± 3 ± 4
729 ± 3 ± 4
422 ± 3 ± 4
827 ± 3 ± 4
520 ± 3 ± 4
925 ± 3 ± 4
618 ± 3 ± 4
10 23 ± 3 ± 4
716 ± 3 ± 4
11 21 ± 3 ± 4
814 ± 3 ± 4
12 19 ± 3 ± 4
912 ± 4 ± 5
13 17 ± 3 ± 4
10 10 ± 4 ± 5
14 15 ± 3 ± 4
11 8 ± 4 ± 5
15 13 ± 3 ± 4
12 6 ± 4 ± 5
16 11 ± 5 ± 6
13 4 ± 4 ± 5
17 9 ± 5 ± 6
14 2 ± 5 ± 6
18 7 ± 5 ± 6
15 0 ± 5 ± 6
19 5 ± 5 ± 6
NOTE: For DCS1800, 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 output power actually transmitted by the MS at each of the power control levels shall form
a monotonic sequence, and the interval between power steps shall be 2 ± 1.5 dB.
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:
GSM 900 DCS 1800
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.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
GSM 900 micro-BTS DCS 1800 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 (>14) - 19 dBm ((>0.03) - 0.08 W) M2 (>22) - 27 dBm ((>0.16) - 0.5 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 ±4dB 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 utilise downlink RF power control. In addition to the static RF power steps
described above, the BSS may then utilise 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 1800 kHz offset from the carrier the BTS is not tested in
frequency hopping mode.
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 analyze 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 mask applies for all RF channels mentioned in section 2.
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.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
a) GSM 900
Power Measurement bandwidth
level
(dBm) 30 kHz 100kHz
100 200 250 400 600 1200 1800 3000
≥·6000
to to to to
<1200 <1800 <3000 <6000
≥ 43 + 0.5 - 30 - 33 - 60 - 70 - 73 - 75 - 75 - 80
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
≤ 33
+ 0.5 - 30 - 33 - 60 - 66 - 66 - 69 - 71 - 77 MS
≥ 39
37 + 0.5 - 30 - 33 - 60 - 64 - 64 - 67 - 69 - 75
35 + 0.5 - 30 - 33 - 60 - 62 - 62 - 65 - 67 - 73
≤ 33 + 0.5 - 30 - 33 - 60 - 60 - 60 - 63 - 65 - 71
b) DCS 1800
Power Measurement bandwidth
level
(dBm) 30 kHz 100kHz
100 200 250 600 1200 1800
≥·6000
to to to
<1200 <1800 <6000
+ 0.5 - 30 - 33 - 70 - 73 - 75 - 80
≥ 43
41 + 0.5 - 30 - 33 - 68 - 71 - 73 - 80
39 + 0.5 - 30 - 33 - 66 - 69 - 71 - 80
37 + 0.5 - 30 - 33 - 64 - 67 - 69 - 80 BTS
35 + 0.5 - 30 - 33 - 62 - 65 - 67 - 80
+ 0.5 - 30 - 33 - 60 - 63 - 65 - 80
≤ 33
+ 0.5 - 30 - 33 - 60 - 60 - 71 - 79
≥ 36
34 + 0.5 - 30 - 33 - 60 - 60 - 69 - 77
32 + 0.5 - 30 - 33 - 60 - 60 - 67 - 75 MS
30 + 0.5 - 30 - 33 - 60 - 60 - 65 - 73
28 + 0.5 - 30 - 33 - 60 - 60 - 63 - 71
26 + 0.5 - 30 - 33 - 60 - 60 - 61 - 69
+ 0.5 - 30 - 33 - 60 - 60 - 59 - 67
≤ 24
The specifications assume the following measurement conditions.
For BTS up to 1800 kHz from the carrier and for MS in all cases:
Zero frequency scan, filter bandwidth and video bandwidth of 30 kHz up to 1800 kHz from the carrier and
100 kHz beyond 1800 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
1800 kHz from the carrier only measurements centred on 200 kHz multiples are taken with averaging over
50 bursts.
For BTS above 1800 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.
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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 carrier in up to 12 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. For the BTS only
one transmitter is active for this test.
iii) for MS measured below 600 kHz from the carrier, if the limit according to the above table is below -
36 dBm, a value of -36 dBm shall be used instead. For 600 kHz up to less than 1800 kHz this limit
shall be -56 dBm for DCS 1800 MS and -51 dBm for GSM 900 MS. At 1800 kHz and beyond, this
limit shall be -51 dBm for DCS 1800 MS and -46 dBm for GSM 900 MS.
iv) for BTS, if the limit according to the above table is below L, a value L shall be used instead, where L
is L1 dB relative to the output power of the BTS at the lowest static power level measured at 30
kHz, or L2 dBm, whichever is higher
For up to 1800 kHz from the carrier: L1 = - 88 dB
Beyond 1800 kHz: L1 = - 83 dB
For GSM 900 BTS: L2 = - 65 dBm
For DCS 1800 BTS: L2 = - 57 dBm
The micro-BTS spectrum due to modulation and noise at all frequency offsets greater than 1.8MHz from
carrier shall be -70 dB for all GSM 900 micro-BTS classes and -76 dB for all DCS 1800 micro-BTS
classes. These are average levels in 100kHz relative to a measurement in 30kHz on carrier. The
measurement will be made in non-frequency hopping mode under the conditions specified for the normal
BTS.
The following exceptions and minimum measurement levels shall apply for the micro-BTS:-
i) for the micro-BTS, if the limit as specified above is below the values in the following table, then the
values in the table will be used instead.
Microcell BTS Maximum spectrum due to modulation and noise in 100kHz (dBm)
Power Class
GSM900 DCS1800
M1 - 59 - 57
M2 - 64 - 62
M3 - 69 - 67
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
4.2.2 Spectrum due to switching transients
Those effects are also measured in the time domain and the specifications assume the following
measurement conditions: zero frequency scan, filter bandwidth 30 kHz, peak hold, and video bandwidth
100 kHz.
The example of a waveform due to a burst as seen in a 30 kHz filter offset from the carrier is given
hereunder (figure 1).
Figure 1: Example of a time waveform due to a burst as seen in a 30 kHz filter offset from the
carrier
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
a) Mobile station:
Power level Maximum level measured
400 kHz 600 kHz 1200 kHz 1800 kHz
39 dBm - 21 dBm - 26 dBm - 32 dBm - 36 dBm
- 23 dBm - 26 dBm - 32 dBm - 36 dBm
≤ 37 dBm
NOTE 1: The relaxations for power level 39 dBm is in line with the modulated spectra and thus
causes negligible additional interference to an analogue system by a GSM signal.
NOTE 2: The near-far dynamics with this specification has been estimated to be approximately
58 dB for MS operating at a power level of 8 W or 49 dB for MS operating at a power
level of 1 W. The near-far dynamics then gradually decreases by 2 dB per power level
down to 32 dB for MS operating in cells with a maximum allowed output power of 20
mW or 29 dB for MS operating at 10 mW.
NOTE 3: The possible performance degradation due to switching transient leaking into the
beginning or the end of a burst, was estimated and found to be acceptable with respect
to the BER due to cochannel interference (C/I).
b) Base transceiver station:
The maximum level measured, after any filters and combiners, at the indicated offset from the carrier, is:
Maximum level measured
400 kHz 600 kHz 1200 kHz 1800 kHz
GSM 900 - 57 dBc - 67 dBc - 74 dBc - 74 dBc
DCS 1800 - 50 dBc - 58 dBc - 66 dBc - 66 dBc
or -36 dBm, whichever is the higher.
dBc means relative to the output power at the BTS, measured at the same point and in a filter bandwidth
of at least 300 kHz.
NOTE: Some of the above requirements are different from those specified in section 4.3.2.
4.3 Spurious emissions
The limits specified hereunder are based on a 5-pole synchronously tuned measurement filter.
4.3.1 Principle of the specification
In this section, the spurious transmissions (whether modulated or unmodulated) and the switching
transients are specified together by measuring the peak power in a given bandwidth at various
frequencies. The bandwidth is increased as the frequency offset between the measurement frequency
and, either the carrier, or the edge of the MS or BTS transmit band, increases. The effect for spurious
signals of widening the measurement bandwidth is to reduce the allowed total spurious energy per MHz.
The effect for switching transients is to effectively reduce the allowed level of the switching transients (the
peak level of a switching transient increases by 6 dB for each doubling of the measurement bandwidth).
The conditions are specified in the following table, a peak-hold measurement being assumed.
The measurement conditions for radiated and conducted spurious are specified separately in GSM 11.10
and 11.20. The frequency bands where these are actually measured may differ from one type to the other
(see GSM 11.10 and 11.20).
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
a)
Band Frequency offset Measurement bandwidth
(offset from carrier)
relevant transmit 1.8 MHz 30 kHz
band 100 kHz
·6 MHz
b)
Band Frequency offset Measurement bandwidth
100 kHz - 50 MHz - 10 kHz
50 MHz - 500 MHz - 100 kHz
above 500 MHz outside the (offset from edge of the
relevant transmit band relevant above band)
2 MHz 30 kHz
5 MHz 100 kHz
10 MHz 300 kHz
20 MHz 1 MHz
30 MHz 3 MHz
The measurement settings assumed correspond, for the resolution bandwidth to the value of the
measurement bandwidth in the table, and for the video bandwidth to approximately three times this value.
NOTE: For radiated spurious emissions for MS with antenna connectors, and for all spurious
emissions for MS with integral antennas, the specifications currently only apply to the
frequency band 30 MHz to 4 GHz. The specification and method of measurement
outside this band are under consideration.
4.3.2 Base transceiver station
The power measured in the conditions specified in 4.3.1a shall be no more than -36 dBm.
The power measured in the conditions specified in 4.3.1b shall be no more than:
- 250 nW (-36 dBm) in the frequency band 9 kHz - 1 GHz
-1 μW (-30 dBm) in the frequency band 1 - 12.75 GHz
NOTE: For radiated spurious emissions for BTS, the specifications currently only apply to the
frequency band 30 MHz to 4 GHz. The specification and method of measurement
outside this band are under consideration.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
In the BTS receive band, the power measured using the conditions specified in 4.2.1, with a filter and
video bandwidth of 100 kHz shall be no more than:
GSM (dBm) DCS (dBm)
Normal BTS - 98 - 98
Micro BTS M1 - 91 - 96
Micro BTS M2 - 86 - 91
Micro BTS M3 - 81 - 86
These values assume a 30 dB coupling loss between transmitter and receiver. If BTSs of different classes
are co-sited, the coupling loss must be increased by the difference between the corresponding values
from the table above.
Measures must be taken for mutual protection of receivers when GSM 900 and DCS 1800 BTS are co-
sited.
NOTE: Thus, for this case, assuming the coupling losses are as above, then the power
measured in the conditions specified in 4.2.1, with a filter and video bandwidth of 100
kHz should be no more than the values in the table above for the GSM 900 transmitter
in the band 1710 - 1785 MHz and for DCS 1800 transmitter in the band 880 - 915
MHz.
In any case, the powers measured in the conditions specified in 4.2.1, with a filter and video bandwidth of
100 kHz shall be no more than - 47 dBm for the GSM BTS in the band 1805 - 1880 MHz and - 57 dBm for
a DCS 1800 BTS in the band 925 - 960 MHz.
4.3.3 Mobile station
The power measured in the conditions specified in 4.3.1a, for a MS when allocated a channel, shall be no
more than -36 dBm.
The power measured in the conditions specified in 4.3.1b for a MS, when allocated a channel, shall be no
more than (see also note in 4.3.1b above):
- 250 nW (-36 dBm) in the frequency band 9 kHz - 1 GHz
-1 μW (-30 dBm) in the frequency band 1 - 12.75 GHz
The power measured in a 100 kHz bandwidth for a mobile, when not allocated a channel (idle mode), shall
be no more than (see also note in 4.3.1 above):
- 2 nW (-57 dBm) in the frequency bands 9 kHz - 880 MHz, 915 - 1000 MHz
- 1.25 nW (-59 dBm) in the frequency band 880 - 915 MHz
- 5 nW (-53 dBm) in the frequency band 1.71 - 1.785 GHz
- 20 nW (-47 dBm) in the frequency bands 1 - 1.71 GHz, 1.785 - 12.75 GHz
NOTE: The idle mode spurious emissions in the receive band are covered by the case for MS
allocated a channel (see below).
When allocated a channel, the power emitted by the MS, when measured using the measurement
conditions specified in 4.2.1, but with averaging over at least 50 burst measurements, with a filter and
video bandwidth of 100 kHz, for measurements centred on 200 kHz multiples, in the band 935-960 MHz
shall be no more than -79 dBm, in the band 925-935 MHz shall be no more than -67 dBm and in the band
1805-1880 MHz, shall be no more than -71 dBm.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
As exceptions up to five measurements with a level up to -36 dBm are permitted in each of the bands
925-960 MHz and 1805-1880 MHz for each ARFCN used in the measurements.
When hopping, this applies to each set of measurements, grouped by the hopping frequencies as
described in 4.2.1.
4.4 Radio frequency tolerance
The radio frequency tolerance for the base transceiver station and the mobile station is defined in
GSM 05.10.
4.5 Output level dynamic operation
NOTE: The term "any transmit band channel" is used here to mean:
any RF channel of 200 kHz bandwidth centred on a multiple of 200 kHz which is within
the relevant transmit band.
4.5.1 Base transceiver station
The BTS shall be capable of not transmitting a burst in a time slot not used by a logical channel or where
DTX applies. The output power relative to time when sending a burst is shown in annex B. In the case
where the bursts in two (or several) consecutive time slots are actually transmitted, at the same
frequency, no requirements are specified to the power ramping in the guard times between the active time
slots, and the template of annex B shall be respected at the beginning and the end of the series of
consecutive bursts. The residual output power, if a timeslot is not activated, shall be maintained at, or
below, a level of -30 dBc on the frequency channel in use. All emissions related to other frequency
channels shall be in accordance with the wide band noise and spurious emissions requirements.
A measurement bandwidth of at least 300 kHz is assumed.
4.5.2 Mobile station
The output power can be reduced by steps of 2 dB as listed in section 4.1.
The transmitted power level relative to time when sending a burst is shown in Annex B. The timing of the
transmitted burst is specified in GSM 05.10. Between the active bursts, the residual output power shall be
maintained at, or below, the level of:
- -59 dBc or -54 dBm, whichever is the greater for GSM 900, except for the time slot preceding the
active slot, for which this value is equal to -36 dBm;
- -48 dBc or -48 dBm, whichever is the greater for DCS 1800;
in any transmit band channel.
A measurement bandwidth of at least 300 kHz is assumed.
The transmitter, when in idle mode, will respect the conditions of section 4.3.3.
4.6 Phase accuracy
When transmitting a burst, the phase accuracy of the signal, relative to the theoretical modulated
waveforms as specified in GSM 05.04, is specified in the following way.
For any 148-bits subsequence of the 511-bits pseudo-random sequence, defined in CCITT
Recommendation O.153 fascicle IV.4, the phase error trajectory on the useful part of the burst (including
tail bits), shall be measured by computing the difference between the phase of the transmitted waveform
and the phase of the expected one. The RMS phase error (difference between the phase error trajectory
and its linear regression on the active part of the time slot) shall not be greater than 5° with a maximum
peak deviation during the useful part of the burst less than 20°.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
NOTE: Using the encryption (ciphering mode) is an allowed means to generate the pseudo-
random sequence.
The burst timing of the modulated carrier in the active part of the time slot shall be chosen to ensure that
all the modulating bits in the useful part of the burst (see GSM 05.04) influence the output phase in a time
slot.
4.7 Intermodulation attenuation
The intermodulation attenuation is the ratio of the power level of the wanted signal to the power level of an
intermodulation component. It is a measure of the capability of the transmitter to inhibit the generation of
signals in its non-linear elements caused by the presence of the carrier and an interfering signal reaching
the transmitter via the antenna.
4.7.1 Base transceiver station
An interfering CW signal shall be applied within the relevant BTS TX band at a frequency offset of ≥ 800
kHz, and with a power level 30 dB below the power level of the wanted signal.
The intermodulation products shall meet the requirements in 4.7.2
4.7.2 Intra BTS intermodulation attenuation
In a BTS intermodulation may be caused by combining several RF channels to feed a single antenna, or
when operating them in the close vicinity of each other. The BTS shall be configured with each transmitter
operating at the maximum allowed power, with a full complement of transceivers and with modulation
applied. For the measurement in the transmit band the equipment shall be operated at equal and
minimum carrier frequency spacing specified for the BSS configuration under test. For the measurement
in the receive band the equipment shall be operated with such a channel configuration that at least 3rd
order intermodulation products fall into the receive band.
All the following requirements relate to frequency offsets from the uppermost and lowermost carriers. The
peak hold value of intermodulation components over a timeslot, shall not exceed -70 dBc or -36 dBm,
whichever is the higher, for frequency offsets between 6 MHz and the edge of the relevant Tx band
measured in a 300 kHz bandwidth. 1 in 100 timeslots may fail this test by up to a level of 10 dB. For
offsets between 600 kHz to 6 MHz the requirements and the measurement technique is that specified in
Section 4.2.1.
The other requirements of section 4.3.2 in the band 9 kHz to 12.75 GHz shall still be met.
4.7.3 Intermodulation between MS (DCS 1800 only)
The maximum level of any intermodulation product, when measured as peak hold in a 300 kHz bandwidth,
shall be 50 dB below the wanted signal when an interfering CW signal is applied within the DCS 1800 MS
transmit band at a frequency offset of 800 kHz with a power level 40 dB below the power level of the
wanted (DCS 1800 modulated) signal.
4.7.4 Mobile PBX (GSM 900 only)
In a mobile PBX intermodulation may be caused when operating transmitters in the close vicinity of each
other. The intermodulation specification for mobile PBXs (GSM 900 only) shall be that stated in section
4.7.2.
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ETS 300 577: January 1996 (GSM 05.05 version 4.12.0)
5 Receiver characteristics
In this section, the requirements are given in terms of power levels at the antenna connector of the
receiver. Equipment with integral antenna may be taken into account by converting these power level
requirements into field strength requirements, assuming a 0 dBi gain antenna. This means that the tests
on equipment on integral antenna will consider fields strengths (E) related to the power levels (P)
specified, by the following formula (derived from the formula E = P + 20logF + 77.2):
(MHz)
assuming F = 925 MHz : E (dBμV/m) = P (dBm) + 136.5 for GSM 900
assuming F = 1795 MHz : E (dBμV/m) = P (dBm) + 142.3
...
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