Fixed Radio Systems; Point-to-point equipment; Parameters for digital radio systems for the transmission of digital signals and analogue video signals operating at around 58 GHz, which do not require co-ordinated frequency planning

Modification and adding of technical parameters for point-to-point Radio Relay systems due to new frequency limits and channel arrangements proposed by CEPT and technology enhancements that may improve spectrum utilisation in the uncoordinated frequency band. 2) Aligning the text with Generic Wording Report where approppriate.

Fiksni radijski sistemi – Oprema tipa točka-točka – Parametri radiorelejnih sistemov za prenos digitalnih signalov in analognih video signalov, ki delujejo na frekvenci okrog 58 GHz in ne zahtevajo koordiniranega frekvenčnega planiranja

General Information

Status
Published
Publication Date
30-Nov-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-2003
Due Date
01-Dec-2003
Completion Date
01-Dec-2003

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SLOVENSKI STANDARD
SIST EN 300 408 V1.2.1:2003
01-december-2003
)LNVQLUDGLMVNLVLVWHPL±2SUHPDWLSDWRþNDWRþND±3DUDPHWULUDGLRUHOHMQLK

VLVWHPRY]DSUHQRVGLJLWDOQLKVLJQDORYLQDQDORJQLKYLGHRVLJQDORYNLGHOXMHMRQD

IUHNYHQFLRNURJ*+]LQQH]DKWHYDMRNRRUGLQLUDQHJDIUHNYHQþQHJDSODQLUDQMD

Fixed Radio Systems; Point-to-point equipment; Parameters for digital radio systems for

the transmission of digital signals and analogue video signals operating at around 58

GHz, which do not require co-ordinated frequency planning
Ta slovenski standard je istoveten z: EN 300 408 Version 1.2.1
ICS:
33.040.20 Prenosni sistem Transmission systems
33.060.30 Radiorelejni in fiksni satelitski Radio relay and fixed satellite
komunikacijski sistemi communications systems
SIST EN 300 408 V1.2.1:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 300 408 V1.2.1:2003
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SIST EN 300 408 V1.2.1:2003
ETSI EN 300 408 V1.2.1 (2000-09)
European Standard (Telecommunications series)
Fixed Radio Systems;
Point-to-point equipment;
Parameters for digital radio systems for the transmission
of digital signals and analogue video signals
operating at around 58 GHz, which do not require
co-ordinated frequency planning
---------------------- Page: 3 ----------------------
SIST EN 300 408 V1.2.1:2003
2 ETSI EN 300 408 V1.2.1 (2000-09)
Reference
REN/TM-04072
Keywords
DRRS, point-to-point, transmission, radio
ETSI
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Important notice
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If you find errors in the present document, send your comment to:
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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 2000.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 300 408 V1.2.1:2003
3 ETSI EN 300 408 V1.2.1 (2000-09)
Contents

Intellectual Property Rights................................................................................................................................5

Foreword.............................................................................................................................................................5

1 Scope ........................................................................................................................................................6

2 References ................................................................................................................................................6

3 Symbols and abbreviations.......................................................................................................................7

3.1 Symbols..............................................................................................................................................................7

3.2 Abbreviations .....................................................................................................................................................8

4 General characteristics .............................................................................................................................8

4.1 Frequency bands and channel arrangements ......................................................................................................8

4.1.1 Frequency band.............................................................................................................................................8

4.1.2 Radio Channel Arrangements.......................................................................................................................8

4.1.3 RF-channel Selection....................................................................................................................................8

4.1.3.1 RF-channel selection procedure..............................................................................................................8

4.1.3.2 Interference avoidance requirements.......................................................................................................9

4.1.3.2.1 Interference avoidance limit ..............................................................................................................9

4.1.3.2.2 Interference avoidance limit calibration ............................................................................................9

4.1.3.3 Frequency agility.....................................................................................................................................9

4.1.4 Transmit/receive frequency separation .........................................................................................................9

4.2 Environmental Conditions..................................................................................................................................9

4.2.1 Equipment within weather protected locations (indoor locations)................................................................9

4.2.2 Equipment for non-weather protected locations (outdoor locations)..........................................................10

4.3 Electromagnetic Compatibility.........................................................................................................................10

4.4 Baseband Interface ...........................................................................................................................................10

4.5 System block diagram ......................................................................................................................................10

4.6 Antennas and RF-interface...............................................................................................................................11

4.6.1 Antenna Requirements................................................................................................................................11

4.6.2 RF interface ................................................................................................................................................11

4.7 Power supply....................................................................................................................................................11

5 Parameters for digital systems................................................................................................................11

5.1 Transmission capacity ......................................................................................................................................11

5.2 Error-performance and availability requirements for Class A equipment........................................................11

5.3 Transmitter characteristics................................................................................................................................12

5.3.1 Transmitter power.......................................................................................................................................12

5.3.1.1 Transmitter power range .......................................................................................................................12

5.3.1.2 Equivalent Isotropically Radiated Power (EIRP)..................................................................................12

5.3.2 Radiated Spectrum......................................................................................................................................12

5.3.2.1 RF spectrum mask.................................................................................................................................12

5.3.2.2 Spurious emissions................................................................................................................................12

5.3.3 Radio frequency tolerance ..........................................................................................................................12

5.4 Receiver characteristics....................................................................................................................................12

5.4.1 Spurious emissions .....................................................................................................................................12

6 Parameters for wideband analogue systems...........................................................................................13

6.1 Transmitter characteristics................................................................................................................................13

6.1.1 Power ..........................................................................................................................................................13

6.1.1.1 Transmitter power range .......................................................................................................................13

6.1.1.2 EIRP......................................................................................................................................................13

6.1.2 Radiated spectrum ......................................................................................................................................13

6.1.2.1 Spectrum mask......................................................................................................................................13

6.1.2.2 Spurious emissions................................................................................................................................13

6.1.3 RF frequency tolerance...............................................................................................................................13

6.2 Receiver characteristics, spurious emissions....................................................................................................13

ETSI
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SIST EN 300 408 V1.2.1:2003
4 ETSI EN 300 408 V1.2.1 (2000-09)

Annex A (informative): Additional information..................................................................................15

A.1 Additional information on Class A and Class B ....................................................................................15

A.2 Radio frequency channel arrangement ...................................................................................................15

A.3 Antenna alignment procedures...............................................................................................................16

Annex B (normative): Essential requirements for the EC Council Directive 89/336 (EMC

Directive) ........................................................................................................17

Annex C (normative): System type codes for regulatory procedures .............................................18

Annex D (informative): Rationale for the interference limit formula ...............................................19

D.1 Analysis of the quality value for the channel selection procedure.........................................................19

D.1.1 Theoretical background....................................................................................................................................19

D.1.2 Typical co-channel interference situation when channel rejection threshold is used .......................................19

D.2 Protection capability of the RF-channel selection procedure.................................................................20

D.3 Frequency agility criteria........................................................................................................................21

Bibliography.....................................................................................................................................................22

History ..............................................................................................................................................................23

ETSI
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SIST EN 300 408 V1.2.1:2003
5 ETSI EN 300 408 V1.2.1 (2000-09)
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 Transmission

and Multiplexing (TM).
National transposition dates
Date of adoption of this EN: 7 July 2000
Date of latest announcement of this EN (doa): 31 October 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 April 2001
Date of withdrawal of any conflicting National Standard (dow): 30 April 2001
ETSI
---------------------- Page: 7 ----------------------
SIST EN 300 408 V1.2.1:2003
6 ETSI EN 300 408 V1.2.1 (2000-09)
1 Scope

The present document specifies the minimum performance requirements for terrestrial fixed service

radiocommunications equipment operating in the 58 GHz frequency band which do not require co-ordinated frequency

planning.

The frequency band is proposed to be used by various technologies for uncoordinated use of the band. It also benefits

from the high and stable atmospheric attenuation which suppresses efficiently distant interferers (about 10 to 15 dB/km

at sea level, refer to ITU-R Recommendation P.676 [16]).

For the purposes of the present document two equipment Classes are specified depending on the network requirements:

- Class A: Digital equipment for High Density Fixed Service (HDFS) applications typically connected to public

networks, which apply the RF-channel selection procedure (see subclause 4.1.3), error performance and

availability requirements (see subclause 5.2).

- Class B: Equipment without requirements for quality of service, typically private network connections.

Typical applications for Class A equipment are e.g. interconnection between cellular networks where there, in some

cases, is a need for short length connections (up to about 500 meters). The RF channel selection procedure shall be used

to protect existing systems from a new system being commissioned. However, the channel selection procedure may not

guarantee interference free installation or operation in all cases due to limitations in the procedure with respect to the

variety of systems.

Typical applications for Class B equipment are in private networks, such as video surveillance systems.

The present document does not contain aspects related to test procedures and test conditions, however they are to be

found in EN 301 126-1 [6].

Safety aspects are outside the mandate of ETSI and they will not be considered in the present document. However

compliance to CENELEC EN 60950 [17] will be required to comply with 99/5/EC [18] Directive (R&TTE).

Technical background for the parameters and requirements referred in the present document may be found in

TR 101 036-1 [15].
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] 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".

[2] ETSI ETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the input to

telecommunications equipment; Part 2: Operated by direct current (dc)".

[3] ETSI ETS 300 019 (all parts): "Equipment Engineering (EE); Environmental conditions and

environmental tests for telecommunications equipment".
ETSI
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SIST EN 300 408 V1.2.1:2003
7 ETSI EN 300 408 V1.2.1 (2000-09)

[4] ETSI EN 301 489-4: "Electromagnetic compatibility and Radio spectrum Matters (ERM);

ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 4: Specific

conditions for fixed radio links and ancillary equipment and services".

[5] CEPT/ERC Recommendation 12-09: "Radio frequency channel arrangement for fixed service

systems operating in the band 57,0 GHz to 59,0 GHz which do not require frequency planning".

[6] ETSI EN 301 126-1: "Fixed Radio Systems; Conformance testing; Part 1: Point-to-Point

equipment - Definitions, general requirements and test procedures".

[7] ITU-R F.ANPER: "Availability objectives for real digital radio-relay links forming part of the

national portion constant bit rate digital path at or above the primary rate".

[8] ITU-T Recommendation G.703: "Physical/electrical characteristics of hierarchical digital

interfaces".
[9] CEPT/ERC Recommendation 74-01: "Spurious emissions".

[10] ITU-R Recommendation F.1191: "Bandwidths and unwanted emissions of digital radio-relay

systems".

[11] ITU-T Recommendation G.826: "Error performance parameters and objectives for international,

constant bit rate digital paths at or above the primary rate".

[12] ITU-R Recommendation F.1189: "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".

[13] ETSI ETS 300 833 (1999): "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".

[14] ITU-R Recommendation F.697: "Error performance and availability objectives for the local-grade

portion at each end of an ISDN connection at a bit rate below the primary rate utilizing digital

radio-relay systems".

[15] ETSI TR 101 036-1 (V1.3): "Fixed Radio Systems; Generic wording for standards on Digital

Radio Equipment characteristics; Part 1: General aspects and point-to-point equipment

parameters".
[16] ITU-R Recommendation P.676: "Attenuation by atmospheric gases".
[17] CENELEC, EN 60950: "Safety of information technology equipment".

[18] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio

equipment and telecommunications equipment and the mutual recognition of their conformity.

[19] ITU-T Recommendation O.151: "Error performance measuring equipment operating at the

primary rate and above".

[20] Directive EMC 89/336/EEC on the approximation of the laws of the Member States relating to

electromagnetic compatibility".
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 milliWatt
dBW decibel relative to 1 Watt
GHz GigaHertz
ETSI
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SIST EN 300 408 V1.2.1:2003
8 ETSI EN 300 408 V1.2.1 (2000-09)
kHz kiloHertz
km kilometre
MHz MegaHertz
ppm parts per million
V volts
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AC Alternating current
BER Bit Error Ratio
BW Equivalent noise bandwidth
CW Continuous Wave
DC direct current
DRRS Digital Radio Relay Systems
EIRP Equivalent Isotropically Radiated Power
EMC ElectroMagnetic Compatibility
EN Euronorm
FDD Frequency Division Duplex
HDFS High Density Fixed Service
PDH Plesiochronous Digital Hierarchy
Pi Interference Power
RF Radio Frequency
Rx Receiver
TDD Time Division Duplex
Tx Transmitter
4 General characteristics
4.1 Frequency bands and channel arrangements
4.1.1 Frequency band
The frequency band is from 57 GHz to 59 GHz.

NOTE: The successful co-existence of Class A and Class B equipment may require the regulator to define

exclusive spectrum for each equipment Class (see annex A).
4.1.2 Radio Channel Arrangements

The channel arrangements are specified in CEPT/ERC Recommendation 12-09 [5] with 50 MHz or 100 MHz channel

rasters. For reader convenience, the basic parameters of the CEPT Recommendation are shown in informative annex A.

4.1.3 RF-channel Selection
RF-channel selection procedure is mandatory for Class A equipment only.
4.1.3.1 RF-channel selection procedure

The purpose of the RF-channel selection procedure is to detect and protect existing transmissions in order to avoid

unacceptable interference situations.

At both transmission sites, radio-relay terminals shall measure during installation, the interference levels of both receive

and transmit channels (Note). Only in the instance when an unoccupied channel is identified and selected as the

transmission channel shall the transmit power be switched on. The interference avoidance requirements for the receiver

to detect occupied channels are specified in subclause 4.1.3.2 below.
ETSI
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SIST EN 300 408 V1.2.1:2003
9 ETSI EN 300 408 V1.2.1 (2000-09)

The principle of protecting existing transmission shall be respected also during the antenna alignment (see annex A for

examples of possible antenna alignment procedures)

NOTE: If the national regulatory rules allowes to change the frequency of the link during its operation, it may be

considered, in order to decrease the possibility of undetected interference, to apply the RF channel

selection procedure whenever appropriate (e.g. when restoring a link after a failure or by suitable

automatic timed routine in conjunction with frequency agility as in subclause 4.1.3.3).

4.1.3.2 Interference avoidance requirements
4.1.3.2.1 Interference avoidance limit

The radio relay terminal shall consider the radio channel occupied when the level of the interference is above the

following limit:
- Pi> -81dBm+10log(BW/10 MHz).
Where:
- BW is the noise bandwidth of the receiver expressed in MHz.

- Pi is the interference power expressed in dBm measured within the receiver noise bandwidth (BW).

For the rationale of the interference limit formula see informative annex D.
4.1.3.2.2 Interference avoidance limit calibration

The interference avoidance limit of the radio relay terminal shall be calibrated with the CW test signal connected to the

reference point D (antenna port) of the terminal at any frequency within the receiver noise bandwidth or at any

frequency within the transmitter spectrum limits, containing 90% of the transmit power.

4.1.3.3 Frequency agility
Frequency agility is an optional feature.

If unacceptable interference which exceeds a predetermined duration is observed an automatic change of RF-channel

can be initiated using the RF-channel selection procedure described above. If an automatic RF-channel change facility

is implemented a means shall be provided to disable it. Unacceptable interference criteria shall be declared by the

manufacturer (see informative annex D, clause D.3).
4.1.4 Transmit/receive frequency separation
No specific requirements for Tx/Rx –separation.
4.2 Environmental Conditions

The equipment shall be required to meet the environmental conditions set out in ETS 300 019 [3], which defines

weather protected and outdoor environmental Classes and test severities. The manufacturer shall state which Class the

equipment is designed to withstand.
4.2.1 Equipment within weather protected locations (indoor locations)

Equipment intended for operation within temperature controlled locations or partially temperature-controlled locations

shall meet the requirements of ETS 300 019 [3] Classes 3.1 and 3.2 respectively.

Optionally, the more stringent requirements of ETS 300 019 [3] Classes 3.3 (non-temperature-controlled locations), 3.4

(sites with heat trap) and 3.5 (sheltered locations) may be applied.
ETSI
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SIST EN 300 408 V1.2.1:2003
10 ETSI EN 300 408 V1.2.1 (2000-09)
4.2.2 Equipment for non-weather protected locations (outdoor locations)

Equipment intended for operation within non-weather protected locations shall meet the requirements of

ETS 300 019 [3], Class 4.1 or 4.1E.

Class 4.1 applies to many European countries and Class 4.1E applies to all European countries.

4.3 Electromagnetic Compatibility
Equipment shall operate under the conditions specified in ETS 300 385 [4].
4.4 Baseband Interface

When standard interfaces are provided they shall comply with ITU-T standards recognized by ETSI.

In some applications of these radio relay systems, interface parts may be integrated with other systems and therefore

standard interfaces are not required under these circumstances. The manufacturer shall declare whether a standard

interface is provided or not.

For conformance testing of Class A equipment, a baseband interface at points Z, Z' of the block diagram in figure 1

which complies to one of the ETSI recognized standard interfaces (e.g. ITU-T Recommendation G.703 [8]) shall be

made available.
4.5 System block diagram
The system block diagram is shown in figure 1.
Z' E' A' TRANSMIT B' C' D'
MODULATOR TRANSMITTER BRANCHING FEEDER
RF FILTER
(*)
E A B C
RECEIVE
BRANCHING FEEDER
DEMODULATOR RECEIVER
RF FILTER
(*)
(*) NO FILTERING INCLUDED

NOTE 1: For the purpose of defining the measurement points, the branching network does not include a hybrid.

NOTE 2: The points shown above are reference points only; points C and C', D and D' in general coincide.

NOTE 3: Points B and C, B' and C' may coincide when simple duplexer is used.
NOTE 4; In case of TDD systems points B, B´, A and A´ may coincide
Figure 1: System block diagram
ETSI
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SIST EN 300 408 V1.2.1:2003
11 ETSI EN 300 408 V1.2.1 (2000-09)
4.6 Antennas and RF-interface
4.6.1 Antenna Requirements

Requirements for the co-polar antenna radiation pattern envelope are given figure 7a) (Range 6, Class 1) in

EN 300 833 [13]. However, cross-polar radiation pattern requirements are not relevant for the systems using this

frequency band.
4.6.2 RF interface

An adaptor from point D or D´ to IEC standard flange shall be made available by the manufacturer for transmit power,

RF-spectrum and spurious emission measurements.
4.7 Power supply

The equipment shall operate from any of the primary supplies within the ranges specified in ETS 300 132-1 [1] and

ETS 300 132-2 [2].

NOTE: Some applications may require voltages that are not covered by ETS 300 132-1 [1] and

ETS 300 132-2 [2] (e.g. 12 V and / or 24 V).
5 Parameters for digital systems
5.1 Transmission capacity

The manufacturer shall declare the transmission capacities and the channel spacing used. With all transmission

capacities the relevant spectrum mask shall be conformed to.
5.2 Error-performance and availability requirements for Class A
equipment

Class A equipment shall be designed in order to meet network error-performance and availability requirements foreseen

by ITU-T Recommendation G.826 [11], following the criteria defined in ITU-R Recommendations F.1189 [12],

F.697 [14] and F.ANPER [7] for the short haul or the access part of the national portion of the digital connection

The interference limit specified in subclause 4.1.3.2, rather than the actual threshold of the equipment, should be

considered, when planning the hop length for the required fade margin due to propagation effects.

It should be noted that the specified channel selection procedure (see subclause 4.1.3) can help to avoid interference

situations between Class A equipment but cannot guarantee interference–free operation in all situations (see note).

The frequency agility, described in subclause 4.1.3.3, may be a useful function in interference avoidance e.g. between

systems using different duplexing methods or between Class A and Class B –systems.

NOTE: Interference power level in existing network receivers can be in the worst case:

-71dBm –Ptx (dBm) + 10 log(BW/10MHz).
where:

- Ptx is the mean transmit power of the radio relay at the reference point D´ given in the figure 1;

- BW is the noise bandwidth of the receiver.

The interference value calculated from the equation simulates the interference effect of a continuous s

...

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