ETSI EN 300 910 V7.3.1 (2000-10)

SLOVENSKI STANDARD
01-december-2003
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Digital cellular telecommunications system (Phase 2+) (GSM); Radio transmission and
reception (GSM 05.05 version 7.3.1 Release 1998)
Ta slovenski standard je istoveten z: EN 300 910 Version 7.3.1
ICS:
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 Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
Radio transmission and reception
(GSM 05.05 version 7.3.1 Release 1998)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
2 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
Reference
REN/SMG-020505Q7R1
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
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All rights reserved.
ETSI
3 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
Contents
Intellectual Property Rights.6
Foreword.6
1 Scope .7
1.1 References .7
1.2 Abbreviations .8
2 Frequency bands and channel arrangement.8
3 Reference configuration .9
4 Transmitter characteristics .10
4.1 Output power.10
4.1.1 Mobile Station .10
4.1.2 Base station.12
4.1.2.1 Additional requirements for PCS 1 900 Base stations (PCS 1 900).13
4.2 Output RF spectrum .13
4.2.1 Spectrum due to the modulation and wide band noise.13
4.2.2 Spectrum due to switching transients .17
4.3 Spurious emissions.18
4.3.1 Principle of the specification .18
4.3.2 Base Transceiver Station .19
4.3.3 Mobile Station .20
4.3.3.1 Mobile Station GSM 900 and DCS 1 800.20
4.3.3.2 Mobile Station PCS 1 900.20
4.4 Radio frequency tolerance.21
4.5 Output level dynamic operation .21
4.5.1 Base Transceiver Station .21
4.5.2 Mobile Station .21
4.6 Phase accuracy .22
4.7 Intermodulation attenuation.22
4.7.1 Base transceiver station .22
4.7.2 Intra BTS intermodulation attenuation .22
4.7.3 Intermodulation between MS (DCS 1 800 & PCS 1 900 only) .23
4.7.4 Mobile PBX (GSM 900 only).23
5 Receiver characteristics.23
5.1 Blocking characteristics .23
5.2 AM suppression characteristics.25
5.3 Intermodulation characteristics .26
5.4 Spurious emissions.26
6 Transmitter/receiver performance .26
6.1 Nominal Error Rates (NER) .27
6.2 Reference sensitivity level.27
6.3 Reference interference level .29
6.4 Erroneous frame indication performance .30
6.5 Random access and paging performance at high input levels .30
6.6 Frequency hopping performance under interference conditions. .31
ETSI
4 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
Annex A (informative): Spectrum characteristics (spectrum due to the modulation).44
Annex B (normative): Transmitted power level versus time .50
Annex C (normative): Propagation conditions.53
C.1 Simple wideband propagation model .53
C.2 Doppler spectrum types.53
C.3 Propagation models.54
C.3.1 Typical case for rural area (RAx): (6 tap setting).54
C.3.2 Typical case for hilly terrain (HTx): (12 tap setting).54
C.3.3 Typical case for urban area (TUx): (12 tap setting).55
C.3.4 Profile for equalization test (EQx): (6 tap setting) .55
C.3.5 Typical case for very small cells (TIx): (2 tap setting).55
Annex D (normative): Environmental conditions .56
D.1 General .56
D.2 Environmental requirements for the MSs.56
D.2.1 Temperature (GSM 900 and DCS 1 800).56
D.2.1.1 Environmental Conditions (PCS 1 900).56
D.2.2 Voltage .56
D.2.3 Vibration (GSM 900 and DCS 1 800).57
D.2.3.1 Vibration (PCS 1 900) .57
D.3 Environmental requirements for the BSS equipment.57
D.3.1 Environmental requirements for the BSS equipment .58
Annex E (normative): Repeater characteristics (GSM 900 and DCS 1800).59
E.1 Introduction .59
E.2 Spurious emissions.59
E.3 Intermodulation products .60
E.4 Out of band gain.60
E.5 Frequency error and phase error.60
Annex F (normative): Antenna Feeder Loss Compensator Characteristics (GSM 900 and
DCS 1800).61
F.1 Introduction .61
F.2 Transmitting path .61
F.2.1 Maximum output power .61
F.2.2 Gain .61
F.2.3 Burst transmission characteristics .62
F.2.4 Phase error.62
F.2.5 Frequency error .62
F.2.6 Group delay.63
F.2.7 Spurious emissions.63
F.2.8 VSWR .63
F.2.9 Stability .64
F.3 Receiving path.64
F.3.1 Gain .64
F.3.2 Noise figure.64
F.3.3 Group delay.64
F.3.4 Intermodulation performance .64
F.3.5 VSWR .64
F.3.6 Stability .64
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5 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
F.4 Guidelines (informative) .65
Annex G: Not Used.66
Annex H (normative): Requirements on Location Measurement Unit .67
H.1 TOA LMU Requirements.67
H.1.1 Void.67
H.1.2 LMU characteristics .67
H.1.2.1 Blocking characteristics.67
H.1.2.2 AM suppression characteristics .67
H.1.2.3 Intermodulation characteristics.68
H.1.2.4 Spurious emissions .68
H.1.3 Time-of-Arrival Measurement Performance .68
H.1.3.1 Sensitivity Performance.68
H.1.3.2 Interference Performance.69
H.1.3.3 Multipath Performance .70
H.1.4 Radio Interface Timing Measurement Performance.70
H.2 E-OTD LMU Requirements.70
H.2.1 LMU Characteristics .71
H.2.1.1 Blocking characteristics.71
H.2.1.2 AM suppression characteristics .71
H.2.1.3 Intermodulation characteristics.71
H.2.2 Sensitivity and Interference Performance.71
H.2.2.1 Sensitivity Performance.71
H.2.2.2 Interference Performance.72
H.2.2.3 Multipath Performance .72
Annex I (normative): E-OTD Mobile Station Requirements.74
I.1 Introduction .74
I.2 Sensitivity and Interference Performance .74
I.2.1 Sensitivity Performance .74
I.2.2 Interference Performance .75
I.2.3 Multipath Performance.75
Annex L (informative): Change control history .76
History .77
ETSI
6 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Special Mobile
Group (SMG).
The present document defines the requirements for the transceiver of the digital mobile cellular and personal
communication systems operating in the 900 MHz (P-GSM, E-GSM and R-GSM) and 1 800 MHz band (GSM 900 and
DCS 1 800).
The contents of the present document may be subject to continuing work within SMG and may change following formal
SMG approval. Should SMG modify the contents of the present document it will then be re-submitted for formal
approval procedures by ETSI with an identifying change of release date and an increase in version number as follows:
Version 7.x.y
where:
7 GSM Phase 2+ Release 1998.
x the second digit is incremented for changes of substance, i.e. technical enhancements, corrections, updates,
etc.;
y the third digit is incremented when editorial only changes have been incorporated in the specification.
National transposition dates
Date of adoption of the present document: 1 September 2000
Date of latest announcement of the present document (doa): 31 December 2000
Date of latest publication of new National Standard
or endorsement of the present document (dop/e): 30 June 2001
Date of withdrawal of any conflicting National Standard (dow): 30 June 2001
ETSI
7 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
1 Scope
The present document defines the requirements for the transceiver of the pan-European digital mobile cellular and
personal communication systems operating in the GSM 900 MHz and 1 800 MHz band (GSM 900 and DCS 1 800), and
in the PCS 1 900 MHz band.
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.
The present document 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 11.20.
Unless otherwise stated, the requirements defined in the present document apply to the full range of environmental
conditions specified for the equipment (see annex D).
In the present document some relaxation's are introduced for GSM 900 MSs which fulfil the following conditions:
- pertain to power class 4 or 5 (see clause 4.1.1);
- not designed to be vehicle mounted (see GSM 02.06).
In the present document these Mobile Stations are referred to as "small MS".
NOTE: In the present document, a handheld which can be connected to a car kit is not considered to be vehicle
mounted.
MSs may operate on more than one of the frequency bands specified in clause 2. These MSs, defined in GSM 02.06, are
referred to as "Multi band MSs" in the present document. Multi band MSs 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 the present document. Annexes D and E are the only
clauses of the present document applicable to repeaters. Annex E does not apply to the MS or BSS.
1.1 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
• For this Release 1998 document, references to GSM documents are for Release 1998 versions (version 7.x.y).
[1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and
acronyms".
[2] GSM 02.06: "Digital cellular telecommunications system (Phase 2+); Types of Mobile Stations
(MS)".
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8 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
[3] GSM 03.64: "Digital cellular telecommunications system (Phase 2+); General Packet Radio
Service (GPRS); GPRS Radio Interface Stage 2".
[4] GSM 05.01: "Digital cellular telecommunications system (Phase 2+); Physical layer on the radio
path General description".
[5] GSM 05.04: "Digital cellular telecommunications system (Phase 2+); Modulation".
[6] GSM 05.08: "Digital cellular telecommunications system (Phase 2+); Radio subsystem link
control".
[7] GSM 05.10: "Digital cellular telecommunications system (Phase 2+); Radio subsystem
synchronization".
[8] GSM 11.10: "Digital cellular telecommunications system (Phase 2+); Mobile Station (MS)
conformity specification".
[9] GSM 11.11: "Digital cellular telecommunications system (Phase 2+); Specification of the
Subscriber Identity Module - Mobile Equipment (SIM - ME) interface".
[10] ITU-T Recommendation O.153: "Basic parameters for the measurement of error performance at
bit rates below the primary rate".
[11] 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 weather protected locations".
[12] 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-weather protected locations".
[13] GSM 04.14: "Digital cellular telecommunications system (Phase 2+); Individual equipment type
requirements and interworking; Special conformance testing functions".
[14] ANSI T1.610 "Generic Procedures for Supplementary Services", 1990
[15] GSM 03.52: "Digital cellular telecommunications system (Phase 2+); GSM Cordless Telephony
System (CTS); Lower layers of the CTS radio interface; Stage 2".
1.2 Abbreviations
Abbreviations used in the present document are listed in GSM 01.04.
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
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9 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
iii) Railways GSM 900 Band, R-GSM (includes Standard and Extended GSM 900 Band);
For Railways GSM 900 band, the system is required to operate in the following frequency band:
876 - 915 MHz: mobile transmit, base receive
921 - 960 MHz: base transmit, mobile receive
iv) DCS 1 800 Band:
For 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
v) PCS1900 Band:
For PCS 1 900, the system is required to operate in the following band:
1850-1910 MHz: mobile transmit, base receive
1930-1990 MHz base transmit, mobile receive
NOTE 1: The term GSM 900 is used for any GSM system which operates in any 900 MHz band.
NOTE 2: The BTS may cover the complete band, or the BTS capabilities may be restricted to a subset only,
depending on the operator needs.
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.
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 0 ≤ n ≤ 124 Fu(n) = Fl(n) + 45
Fl(n) = 890 + 0.2*(n-1024) 975 ≤ n ≤ 1023
R-GSM 900 Fl(n) = 890 + 0.2*n 0 ≤ n ≤ 124 Fu(n) = Fl(n) + 45
Fl(n) = 890 + 0.2*(n-1024) 955 ≤ n ≤ 1023
DCS 1 800 Fl(n) = 1710.2 + 0.2*(n-512) Fu(n) = Fl(n) + 95
512 ≤ n ≤ 885
PCS 1 900 FI(n) = 1850.2 + .2*(n-512) Fu(n) = FI(n) + 80
512 ≤ n ≤ 810
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.
The pico-BTS is an extension of the micro-BTS concept to the indoor environments. The very low delay spread, low
speed, and small cell sizes give rise to a need for a different set of RF parameters to be specified.
ETSI
10 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
4 Transmitter characteristics
Throughout this clause, 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 MS 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 PCS 1 900 Tolerance (dB)
class Nominal Maximum Nominal Maximum Nominal Maximum for conditions
output output output
power power power normal extreme
1 ------ 1W (30dBm) 1W (30dBm) ±2 ±2,5
2 8 W (39 dBm) 0,25 W (24 dBm) 0,25 W (24 dBm) ±2 ±2,5
3 5 W (37 dBm) 4 W (36 dBm) 2 W (33 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 and
PCS 1 900 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.
The PCS 1 900 MS, including its actual antenna gain, shall not exceed a maximum of 2 Watts (+33 dBm) EIRP per the
applicable FCC rules for wideband PCS services [ANSI T1.610, "Generic Procedures for Supplementary Services",
1990]. Power Class 3 is restricted to transportable or vehicular mounted units.
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 MS 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.
ETSI
11 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
GSM 900
Power Nominal Output Tolerance (dB) for
control power (dBm) conditions
level
normal extreme
0-2 39 ±2 ±2,5
337 ±3 ±4
435 ±3 ±4
533 ±3 ±4
631 ±3 ±4
729 ±3 ±4
827 ±3 ±4
925 ±3 ±4
10 23 ±3 ±4
11 21 ±3 ±4
12 19 ±3 ±4
13 17 ±3 ±4
14 15 ±3 ±4
15 13 ±3 ±4
16 11 ±5 ±6
17 9 ±5 ±6
18 7 ±5 ±6
19-31 5 ±5 ±6
DCS 1 800
Power Nominal Tolerance (dB) for
control Output power conditions
level (dBm)
normal extreme
29 36 ±2 ±2,5
30 34 ±3 ±4
31 32 ±3 ±4
030 ±3 ±4
128 ±3 ±4
226 ±3 ±4
324 ±3 ±4
422 ±3 ±4
520 ±3 ±4
618 ±3 ±4
716 ±3 ±4
814 ±3 ±4
912 ±4 ±5
10 10 ±4 ±5
11 8 ±4 ±5
12 6 ±4 ±5
13 4 ±4 ±5
14 2 ±5 ±6
15-28 0 ±5 ±6
NOTE 1: For DCS 1 800, the power control levels 29, 30 and 31 are not used when transmitting the parameter
MS_TXPWR_MAX_CCH on BCCH, 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.
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12 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
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.
PCS 1 900
Power Control Output Power Tolerance (dB) for conditions
Level (dBm)
Normal Extreme
22-29 Reserved Reserved Reserved
30 33
±2dB ±2,5 dB
31 32
±2dB ±2,5 dB
1 1
±3dB ±4dB
±3dB ±4dB
±3dB ±4dB
1 1
±3dB ±4dB
±3dB ±4dB
±3dB ±4dB
±3dB ±4dB
±3dB ±4dB
±3dB ±4dB
±4dB ±5dB
10 10
±4dB ±5dB
11 8
±4dB ±5dB
12 6
±4dB ±5dB
13 4
±4dB ±5dB
14 2
±5dB ±6dB
15 0
±5dB ±6dB
16-21 Reserved Reserved Reserved
NOTE: Tolerance for MS Power Classes 1 and 2 is ±2 dB normal
and ±2,5 dB extreme at Power Control Levels 0 and 3
respectively.
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 dB ± 1,5 dB except for the step between power control levels 30 and 31
where the interval is 1 dB ± 1dB.
The MS transmitter may be commanded by the BTS to change from any power control level to any other power control
level. The maximum time to execute this change is specified in GSM 05.08.
For CTS transmission, the nominal maximum output power of the MS shall be restricted to :
- 11 dBm (0,015 W) in GSM 900 i.e. power control level 16;
- 12 dBm (0,016 W) in DCS 1 800 i.e. power control level 9.
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 tables.
GSM 900 DCS 1 800 & PCS 1 900
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
75-(<10)W
82.5-(<5)W
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13 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
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 and pico-BTS DCS 1 800 & PCS 1 900 micro and pico-BTS
TRX power Maximum output power TRX power Maximum output power
class class
Micro Micro
M1 (> 19) - 24 dBm M1 (> 27) - 32 dBm
M2 (> 14) - 19 dBm M2 (> 22) - 27 dBm
M3 (> 9) - 14 dBm M3 (> 17) - 22 dBm
Pico Pico
P1 (> 13) - 20 dBm P1 (> 16) - 23 dBm
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 or manufacturers may also specify the BTS output power including any Tx combiner, according to
their needs.
4.1.2.1 Additional requirements for PCS 1 900 Base stations (PCS 1 900)
The BTS transmitter maximum rated output power per carrier, measured at the input of the transmitter combiner, shall
be, according to its TRX power class, as defined in the table above. The base station output power may also be specified
by the manufacturer or system operator at a different reference point (e.g. after transmitter combining).
The maximum radiated power from the BTS, including its antenna system, shall not exceed a maximum of 1640 W
EIRP, equivalent to 1000 W ERP, per the applicable FCC rules for wideband PCS services [14].
4.2 Output RF spectrum
The specifications contained in this clause 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 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 thereunder 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 clause.
4.2.1 Spectrum due to the modulation and wide band noise
The output RF modulation spectrum is specified in the following tables. A mask representation of this specification is
shown in annex A. This specification applies for all RF channels supported by the equipment.
ETSI
14 ETSI EN 300 910 V7.3.1 (2000-10)
(GSM 05.05 version 7.3.1 Release 1998)
The specification applies to the entire of the relevant transmit band and up to 2 MHz either side.
The specification shall be met under 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 at 1800 kHz and above from the carrier, 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 at 1800 kHz and above 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 figures in tables a) and b) below, at the vertically listed power level (dBm) and at the horizontally listed frequency
offset from the carrier (kHz), are then the maximum allowed level (dB) relative to a measurement in 30 kHz on the
carrier.
NOTE: This approach of specification has been chosen for convenience and speed of testing. It does however
require careful interpretation if there is a need to convert figures in the following tables into spectral
density values, in that only part of the power of the carrier is used as the relative reference, and in
addition different measurement bandwidths are applied at different offsets fro
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