ETSI EN 301 128 V1.1.2 (2000-06)

Fixed Radio Systems; Point-to-point equipment; Plesiochronous Digital Hierarchy (PDH); Low and medium capacity digital radio systems operating in the 13 GHz, 15 GHz and 18 GHz frequency bands

REN/TM-04039a

Fiksni radijski sistemi – Oprema tipa točka-točka – Pleziohrona digitalna hierarhija (PDH) – Digitalni radijski sistemi z nizko in srednjo zmogljivostjo, ki delujejo v frekvenčnih pasovih 13 GHz, 15 GHz in 18 GHz

General Information

• Status: Published
• Publication Date: 12-Jun-2000
• Technical Committee: TM 4 - TM Fixed Radio Systems
• Current Stage: 13 - TB decision to make document historical
• Completion Date: 10-May-2007
• Ref Project: SIST EN 301 128 V1.1.2:2003 - Fixed Radio Systems; Point-to-point equipment; Plesiochronous Digital Hierarchy (PDH); Low and medium capacity digital radio systems operating in the 13 GHz, 15 GHz and 18 GHz frequency bands

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2003
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3'+±'LJLWDOQLUDGLMVNLVLVWHPL]QL]NRLQVUHGQMR]PRJOMLYRVWMRNLGHOXMHMRY
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Fixed Radio Systems; Point-to-point equipment; Plesiochronous Digital Hierarchy (PDH);
Low and medium capacity digital radio systems operating in the 13 GHz, 15 GHz and 18
GHz frequency bands
Ta slovenski standard je istoveten z: EN 301 128 Version 1.1.2
ICS:
33.040.20 Prenosni sistem Transmission systems
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)
Fixed Radio Systems;
Point-to-point equipment;
Plesiochronous Digital Hierarchy (PDH);
Low and medium capacity digital radio systems operating
inthe13GHz,15GHzand18GHzfrequencybands

2 ETSI EN 301 128 V1.1.2 (2000-06)
Reference
REN/TM-04039a
Keywords
DRRS, PDH, radio, transmission
ETSI
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© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI
3 ETSI EN 301 128 V1.1.2 (2000-06)
Contents
Intellectual Property Rights.5
Foreword .5
1 Scope.6
2 References.6
3 Symbols and abbreviations .8
3.1 Symbols.8
3.2 Abbreviations .8
4 General characteristics .8
4.1 Frequency bands and channel arrangements.8
4.1.1 Channel plans.8
4.1.2 Channel Spacing (CS).9
4.2 Compatibility requirements between systems.9
4.3 Performance and availability requirements .9
4.4 Environmental conditions.9
4.4.1 Equipment within weather protected locations (indoor locations).9
4.4.2 Equipment for non-weather protected locations (outdoor locations) .9
4.5 Electromagnetic compatibility conditions .10
4.6 Power supply.10
4.7 Telecommunications Management Network (TMN) requirements .10
4.8 Block diagram .10
4.9 Mechanical specifications for Radio Frequency (RF) interfaces.11
5 Baseband characteristics .11
5.1 Plesiochronous Digital Hierarchy (PDH) interfaces.11
6 Transmitter characteristics.11
6.1 Output power.11
6.1.1 Automatic Transmit Power Control (ATPC) .12
6.2 RF spectrum masks.12
6.3 Spectral lines at symbol rate.13
6.4 Spurious emissions .13
6.4.1 Spurious emissions - external.13
6.4.2 Spurious emissions - internal .14
6.5 Radio frequency tolerance.14
6.6 Return loss.14
7 Receiver characteristics.14
7.1 Receiver spurious emissions.14
7.1.1 Spurious emissions - external.15
7.1.2 Spurious emissions - internal .15
7.2 Input level range.15
7.3 Return loss.15
8 System characteristics without diversity.15
8.1 BER as a function of receiver input level.15
8.2 Equipment background bit errors .16
8.3 Interference sensitivity .16
8.3.1 Co-channel external interference .16
8.3.2 Adjacent channel interference.17
8.3.3 Front-end non-linearity requirements (two-tone Continuous Wave (CW) interference).18
8.3.4 CW interference.18
8.4 Distortion sensitivity.18
ETSI
4 ETSI EN 301 128 V1.1.2 (2000-06)
Annex A (informative): Additional information .19
A.1 Automatic Transmit Power Control (ATPC) .19
A.2 Spectrum masks.19
A.3 Lightning protection.19
A.4 Generic mechanical requirements.19
History.20
ETSI
5 ETSI EN 301 128 V1.1.2 (2000-06)
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 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 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 Transmission
and Multiplexing (TM).
The former title of the present document was: "Transmission and Multiplexing (TM); Digital Radio Relay Systems
(DRRS); Plesiochronous Digital Hierarchy (PDH); Low and medium capacity DRRS operating in the 13 GHz, 15 GHz
and 18 GHz frequency bands".
National transposition dates
Date of latest announcement of this EN (doa): 30 September 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 March 2001
Date of withdrawal of any conflicting National Standard (dow): 31 March 2001
ETSI
6 ETSI EN 301 128 V1.1.2 (2000-06)
1 Scope
The present document specifies the minimum performance parameters for terrestrial fixed service digital radio
communications equipments operating in the 13 GHz, 15 GHz and 18 GHz frequency bands.
Digital Radio Relay Systems (DRRS) are used for point-to-point connections in local, regional and national networks at
data rates between 2 Mbit/s and 34 Mbit/s.
As harmonized channel spacings lower than 13,75 MHz are not available in the 18 GHz frequency band at the drafting
date of the present document, capacities lower than 2 x 8 Mbit/s are consequently not considered in this frequency band.
However the present document can be considered as a guideline when national frequency plans based on a 3,5 MHz
channel spacing exist.
Systems considered in the present document are able to respect ITU-R Recommendation national or international grade
performance objectives, i.e. ITU-R Recommendations F.1189-1 [9] for national, ITU-R Recommendation F.1092-1 [8]
for international and ITU-T Recommendation G.826 [11]. Maximum hop lengths of about 35 km are normally
achievable according to the considered frequency bands.
The parameters to be specified fall into two categories:
a) those that are required to provide compatibility between channels from different sources of equipment on the
same route, connected either to:
- separate antennas; or to
- separate polarizations of the same antenna.
b) parameters defining the transmission quality of the proposed system.
The present document deals with Radio Frequency (RF) and baseband characteristics relevant to low and medium
capacity Plesiochronous Digital Hierarchy (PDH) transmission. Antenna/feeder system requirements are covered in
ETS 300 833 [18].
As the maximum transmission rate in a given bandwidth depends on system spectral efficiency, different classes are
defined:
Class 1: equipment based on a minimum 4-state modulation scheme (e.g. 4-FSK, 4-QAM, or equivalent).
Class 2: equipment based on a minimum 16-state modulation scheme (e.g. 16-QAM, or equivalent).
Safety aspects are outside the mandate of ETSI and they are not considered in the present document.
2 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.
[1] ITU-R Recommendation F.497-6: "Radio-frequency channel arrangements for radio-relay systems
operating in the 13 GHz frequency band".
[2] ITU-R Recommendation F.636-3: "Radio-frequency channel for radio-relay systems operating in
the 15 GHz band".
ETSI
7 ETSI EN 301 128 V1.1.2 (2000-06)
[3] ITU-R Recommendation F.595-6: "Radio-frequency channel arrangements for radio-relay systems
operating in the 18 GHz frequency band".
[4] ETSI ETS 300 019-1-2: "Equipment Engineering (EE); Environmental conditions and
environmental tests for telecommunications equipment; Part 1-2: Classification of environmental
conditions; Transportation".
[5] ETSI ETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct
current (dc) sources".
[6] ETSI ETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the input to
telecommunications equipment; Part 2: Operated by direct current (dc)".
[7] ITU-T Recommendation G.703 (1988): "Physical/electrical characteristics of hierarchical digital
interfaces".
[8] ITU-R Recommendation F.1092-1: "Error performance objectives for constant bit rate digital path
at or above the primary rate carried by digital radio-relay systems which may form part of the
international portion of a 27 500 km hypothetical reference path".
[9] ITU-R Recommendation F.1189-1: "Error performance objectives for constant bit rate digital paths
at or above the primary rate carried by digital radio-relay systems which may form part or all of the
national portion of a 27 500 km hypothetical reference path".
[10] ITU-T Recommendation G.773 (1999): "Protocol suites for Q-interfaces for management of
transmission systems".
[11] ITU-T Recommendation G.826 (1993): "Error performance parameters and objectives for
international, constant bit rate digital paths at or above the primary rate".
[12] ETSI EN 300 385: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
ElectroMagnetic Compatibility (EMC) standard for fixed radio links and ancillary equipment".
[13] ITU-R Recommendation F.1101: "Characteristics of digital radio-relay systems below about
17 GHz".
[14] ITU-R Recommendation F.1102: "Characteristics of radio-relay systems operating in frequency
bands above about 17 GHz".
[15] CEPT/ERC Recommendation T/R 12-02: "Harmonized radio frequency channel arrangements for
analogue and digital terrestrial fixed systems operating in the band 12,75 GHz to 13,25 GHz".
[16] CEPT/ERC Recommendation T/R 12-07: "Harmonized radio frequency channel arrangements
digital terrestrial fixed systems operating in the bands 14,5 to 14,62 GHz paired with 15,23 to
15,35 GHz".
[17] CEPT/ERC Recommendation T/R 12-03: "Harmonized radio frequency channel arrangements for
digital terrestrial fixed systems operating in the band 17,7 GHz to 19,7 GHz".
[18] ETSI ETS 300 833: "Fixed Radio Systems; Point to Point Antennas; Antennas for point-to-point
fixed radio systems operating in the frequency band 3 GHz to 60 GHz".
[19] ITU-R Recommendation SM.329-7: "Spurious emissions".
[20] ITU-R Recommendation F.1191-1: "Bandwidths and unwanted emissions of digital radio-relay
systems".
[21] ITU-R Recommendation F.758-1: "Considerations in the development of criteria for sharing
between the terrestrial fixed service and other services".
[22] IEC 60154: "Flanges for waveguides".
[23] CEPT/ERC Recommendation 74-01: "Spurious emissions".
ETSI
8 ETSI EN 301 128 V1.1.2 (2000-06)
3 Symbols and abbreviations
3.1 Symbols
For the purposes of the present document, the following symbols apply:
dB decibel
dBm decibel relative to 1 mW
GHz GigaHertz
kg kilogramme
kHz kiloHertz
km kilometre
Mbit/s Mega-bits per second
MHz MegaHertz
ppm parts per million
ns nanosecond
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATPC Automatic Transmit Power Control
BBER Background Bit Error Rate
BER Bit Error Rate
C/I Carrier to Interference ratio
CS Channel Separation
CW Continuous Wave
Fc cut-off Frequency
FSK Frequency Shift Keying
IF Intermediate Frequency
NFD Net Filter Discrimination
PDH Plesiochronous Digital Hierarchy
QAM Quadrature Amplitude Modulation
RF Radio Frequency
RSL Receive Signal Level
TMN Telecommunications Management Network
TX Transmit
4 General characteristics
4.1 Frequency bands and channel arrangements
4.1.1 Channel plans
The systems are required to operate in the 13 GHz, 15 GHz or 18 GHz frequency bands.
These channel plans based on a 3,5 MHz homogeneous channel pattern using vertical and horizontal polarizations shall
be in accordance with the ITU-R Recommendations F.497-6 [1], F.636-3 [2], F.595-6 [3] and the CEPT/ERC
Recommendations T/R 12-02 [15], T/R 12-07 [16] and T/R 12-03 [17].
All the GO channels shall be in one frequency half band and all the RETURN channels in the other half band.
ETSI
9 ETSI EN 301 128 V1.1.2 (2000-06)
4.1.2 Channel Spacing (CS)
For systems operating on different antennas or different polarization of the same antenna, on the same route.
Table 1a: Channel spacings: 13 GHz & 15 GHz frequency bands
Bit rate 2Mbit/s 2x2Mbit/s 8 Mbit/s 2x8Mbit/s 34Mbit/s 2x34Mbit/s
Mbit/s
Channel Class 1 1,75 MHz 3,5 MHz 7 MHz 14 MHz 28 MHz -
Spacing Class 2 - 1,75 MHz 3,5 MHz 7 MHz 14 MHz 28 MHz
NOTE: n x 2 Mbit/s and n x 8 Mbit/s bit rates may be used where appropriate.
Table 1b: Channel spacings: 18 GHz frequency band
BitRateMbit/s 2x8Mbit/s 34Mbit/s 2x34Mbit/s
Channel Class 1 13,75 MHz 27,5 MHz -
Spacing Class 2 - 13,75 MHz 27,5 MHz
NOTE: n x 2 Mbit/s and n x 8 Mbit/s bit rates may be used where appropriate.
4.2 Compatibility requirements between systems
There shall be no requirement to operate transmitting equipment from one manufacturer with receiving equipment from
another.
Different manufacturer equipment may be used on different polarization of one antenna but there shall be no
requirement to multiplex different manufacturer's equipment on the same polarization of the same antenna.
4.3 Performance and availability requirements
Equipments shall be designed in order to meet network performance and availability requirements foreseen by
ITU-T Recommendation G.826 [11], following the criteria reported in ITU-R Recommendations F.1092-1 [8] and
F.1189-1 [9] for international and national portions of the digital connection. The implication of the link design on the
performance is recognized and the general design criteria reported in ITU-R Recommendations F.1101 [13] and
F.1102 [14] shall be applied.
4.4 Environmental conditions
Both indoor and partially outdoor installations are considered.
The equipment shall be required to meet the environmental conditions set out in ETS 300 019-1-2 [4] which defines
weather protected and non-weather protected locations, classes and test severity.
The manufacturer shall state which class the equipment is designed to withstand.
4.4.1 Equipment within weather protected locations (indoor locations)
Equipment intended for operation within temp
...