ETSI EN 302 063 V1.1.1 (2003-01)
Fixed Radio Systems; Multipoint equipment; Multipoint digital radio systems operating in the 31,0 GHz to 33,4 GHz (32 GHz) frequency range
Fixed Radio Systems; Multipoint equipment; Multipoint digital radio systems operating in the 31,0 GHz to 33,4 GHz (32 GHz) frequency range
DEN/TM-04116
Fiksni radijski sistemi – Večtočkovna oprema – Večtočkovnai digitalni radijski sistemi, ki delujejo v frekvenčnem območju od 31,0 GHz do 33,4 GHz (32 GHz)
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fixed Radio Systems; Multipoint equipment; Multipoint digital radio systems operating in the 31,0 GHz to 33,4 GHz (32 GHz) frequency range33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systemsICS:Ta slovenski standard je istoveten z:EN 302 063 Version 1.1.1SIST EN 302 063 V1.1.1:2003en01-december-2003SIST EN 302 063 V1.1.1:2003SLOVENSKI
STANDARD
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 2
Reference DEN/TM-04116 Keywords FWA, multipoint, radio, DFRS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: editor@etsi.org 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 2003. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 302 063 V1.1.1:2003
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Contents Intellectual Property Rights.5 Foreword.5 Introduction.5 1 Scope.6 2 References.6 3 Definitions, symbols and abbreviations.9 3.1 Definitions.9 3.2 Symbols.9 3.3 Abbreviations.9 4 General characteristics.10 4.1 General system architecture.10 4.2 Frequency bands and channel arrangements.11 4.2.1 Channel plan.11 4.2.2 Channel arrangements.11 4.2.3 Duplex methods.11 4.3 Compatibility requirements.11 4.4 Environmental conditions.12 4.4.1 Equipment within weather protected locations (indoor locations).12 4.4.2 Equipment for non-weather protected locations (outdoor locations).12 4.5 Power supply.12 4.6 Electromagnetic compatibility conditions.12 4.7 TMN interfaces.12 4.8 Synchronization of interface bit rates.12 4.9 Branching/feeder/antenna requirements.13 4.9.1 Waveguide flanges.13 4.9.2 Return loss.13 4.9.3 Intermodulation products.13 5 System parameters.13 5.1 System capacity.13 5.2 Round trip delay.13 5.3 Transparency.13 5.4 Voice coding method.14 5.5 Transmitter characteristics.14 5.5.1 RF block diagram.14 5.5.2 Transmitter output power.14 5.5.3 Transmitter nominal output power.15 5.5.4 Transmit power and frequency control.15 5.5.4.1 Automatic Transmit Power Control (ATPC), uplink.15 5.5.4.2 Automatic Transmit Power Control (ATPC), downlink.15 5.5.4.3 Remote Transmit Power Control (RTPC).15 5.5.4.4 Remote Frequency Control (RFC).15 5.5.5 RF spectrum mask.15 5.5.6 Spurious emissions (external).16 5.5.6.1 Within plus or minus 250 % of the relevant RF channel spacing fs.16 5.5.6.2 Outside the band of plus or minus 250 % of the relevant RF channel spacing fs.16 5.5.7 Radio frequency tolerance.16 5.6 Receiver characteristics.16 5.6.1 Rx local oscillator frequency arrangements.16 5.6.2 Spurious emissions.16 5.6.3 Receiver IF.16 5.6.4 Receiver selectivity.16 5.7 System performance.16 5.7.1 Dynamic level range.16 SIST EN 302 063 V1.1.1:2003
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5.7.2 BER as a function of Receiver input Signal Level (RSL).16 5.7.3 Equipment background BER.17 5.7.4 Interference sensitivity.17 5.7.5 Distortion sensitivity.17 6 Types of interfaces at the subscriber equipment and the network exchange.17 Annex A (normative): Specific parameters for TDMA-systems.19 A.1 Channel arrangements.19 A.2 RF spectrum mask.19 A.3 BER as a function of Receiver input Signal Level (RSL).21 A.4 Interference sensitivity.22 A.4.1 Co-channel interference sensitivity (external).22 A.4.2 Adjacent channel interference.22 A.4.3 Continuous Wave (CW) interference.22 Annex B (normative): Specific parameters for FDMA-systems.23 B.1 Channel arrangements.23 B.2 RF spectrum mask.23 B.2.1 RF spectrum mask for the Central Radio Station.23 B.2.2 RF spectrum mask for the Terminal Station and the Repeater Station.24 B.3 BER as a function of Receiver input Signal Level (RSL).25 B.4 Interference sensitivity.25 B.4.1 Co-channel interference (external).25 B.4.2 Adjacent channel interference (external).26 B.4.3 CW interference.26 Annex C (normative): Specific parameters for MC TDMA-systems.27 C.1 Channel arrangements.27 C.2 Transmitter output power.28 C.3 RF spectrum masks.28 C.3.1 RF spectrum mask.28 C.3.1.1 RF spectrum density mask for the central radio station.28 C.3.1.2 RF-spectrum density mask for the terminal station.30 C.3.1.3 RF-spectrum density mask for the repeater station.30 C.3.1.4 Discrete CW components exceeding the spectrum density mask limit (all stations).31 C.4 System performance.31 C.4.1 BER as a function of Receiver input Signal Level (RSL).31 C.4.2 Equipment Background BER.32 C.4.3 Interference sensitivity.32 C.4.3.1 Co-channel interference (external).32 C.4.3.2 Adjacent channel interference (external).33 C.4.3.3 CW interference.33 Annex D (informative): Bibliography.34 History.35
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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://webapp.etsi.org/IPR/home.asp). All published ETSI deliverables shall include information which directs the reader to the above source of information. 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: 24 January 2003 Date of latest announcement of this EN (doa): 30 April 2003 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2003 Date of withdrawal of any conflicting National Standard (dow): 31 October 2003
Introduction Due to similarities between the frequency raster of the 26 GHz/28 GHz and the 32 GHz band (mainly 31,8 GHz to 33,4 GHz) consideration has been given to the same access methods as well as the respective system parameters in the 32 GHz as in the 26 GHz/28 GHz band. Therefore the main radio frequency parameters have been assumed to be the same as in EN 301 213 (all parts). All emissions are prohibited in the band 31,3 GHz to 31,5 GHz (see footnote S5.340 of the Radio Regulations [17]), therefore this band is not available for FS systems. At the drafting date of the present document, the levels of unwanted emissions from Fixed Service (FS) systems that may fall in the bands 31,3 GHz to 31,5 GHz and 31,5 GHz to 31,8 GHz are still discussed under Agenda Item 1.8.2 of WRC 03 (protection of passive services). In the band 31,5 GHz to 31,8 GHz, there are sharing issues between the Fixed Services and the Passive Services (in particular, the EESS). National Administrations, using this band under the provision of footnote S5.546 of the Radio Regulations [17], should act appropriately when these issues arise. This issue will be addressed by ITU-R in the near future (see Question 232/7). SIST EN 302 063 V1.1.1:2003
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1 Scope The present document specifies the minimum requirements for FDD and TDD equipment and system parameters, including parameters necessary to plan co-existence, of broadband multipoint systems including Fixed Wireless Access (FWA) operating in the 31,0 GHz to 33,4 GHz frequency band (subsequently referred to as the 32 GHz frequency band). Multipoint systems include both point to multipoint (P-MP) and multipoint to multipoint (MP-MP). The 31,8 GHz to 33,4 GHz band has been identified and designated within CEPT with an ERC Recommendation CEPT/ERC/REC 01-02 [1] on the designation of the harmonized frequency band 31,8 GHz to 33,4 GHz for the introduction of Fixed Service (FS) including FWA and point-to-point radio relays. The 31,0 GHz to 31,3 GHz band is available in some countries and included in the CEPT report 25. The present document therefore also covers the 31,0 GHz to 31,3 GHz band provided that the channel arrangement is based on the channel separation as stated in the CEPT/ECC/REC 02-02 [42]. The present document is applicable to system and equipment parameters required to be able to plan the radio inter-operator co-existence of a number of possible systems operating in the 32 GHz frequency band. The following access methods are covered: • FDMA; • TDMA; • MC-TDMA. 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 and/or edition number or version number) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http://docbox.etsi.org/Reference. [1] CEPT/ERC/REC 01-02: "Preferred channel arrangement for digital fixed service systems operating in the frequency band 31.8 - 33.4 GHz". [2] ETSI EN 300 019 (all parts): "Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment". [3] 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". [4] ETSI ETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 2: Operated by direct current (dc)". [5] ETSI EN 300 385: "Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for fixed radio links and ancillary equipment". [6] ITU-T Recommendation G.773: "Protocol suites for Q-interfaces for management of transmission systems". [7] ITU-T Recommendation G.810: "Definitions and terminology for synchronization networks". SIST EN 302 063 V1.1.1:2003
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[8] ITU-T Recommendation G.812: "Timing requirements of slave clocks suitable for use as node clocks in synchronization networks". [9] ITU-T Recommendation G.813: "Timing characteristics of SDH equipment slave clocks (SEC)". [10] ITU-T Recommendation G.823: "The control of jitter and wander within digital networks which are based on the 2 048 kbit/s hierarchy". [11] ITU-T Recommendation G.825: "The control of jitter and wander within digital networks which are based on the synchronous digital hierarchy (SDH)". [12] ITU-T Recommendation G.131: "Control of talker echo". [13] ITU-T Recommendation G.711: "Pulse code modulation (PCM) of voice frequencies". [14] ITU-T Recommendation G.726: "40, 32, 24, 16 kbit/s adaptive differential pulse code modulation (ADPCM)". [15] ITU-T Recommendation G.728: "Coding of speech at 16 kbit/s using low-delay code excited linear prediction". [16] ITU-T Recommendation G.729: "Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear-prediction (CS-ACELP)". [17] ITU-R Radio Regulations. [18] ITU-R Recommendation F.1249: "Maximum equivalent isotropically radiated power of transmitting stations in the fixed service operating in the frequency band 25.25-27.5 GHz shared with the inter-satellite service". [19] ETSI EN 301 213-2: "Fixed Radio Systems; Point-to-multipoint equipment; Point-to-multipoint digital radio systems in frequency bands in the range 24,25 GHz to 29,5 GHz using different access methods; Part 2: Frequency Division Multiple Access (FDMA) methods". [20] ETSI EN 301 213-3: "Fixed Radio Systems; Point-to-multipoint equipment; Point-to-multipoint digital radio systems in frequency bands in the range 24,25 GHz to 29,5 GHz using different access methods; Part 3: Time Division Multiple Access (TDMA) methods". [21] CEPT/ERC/REC 74-01: "Spurious emissions". [22] ETSI EN 301 390: "Fixed Radio Systems; Point-to-point and Point-to-Multipoint Systems; Spurious emissions and receiver immunity at equipment/antenna port of Digital Fixed Radio Systems". [23] ITU-T Recommendation Q.552: "Transmission characteristics at 2-wire analogue interfaces of digital exchange". [24] ITU-T Recommendation Q.553: "Transmission characteristics at 4-wire analogue interfaces of digital exchanges". [25] ITU-T Recommendation G.703: "Physical/electrical characteristics of hierarchical digital interfaces". [26] ITU-T Recommendation G.957: "Optical interfaces for equipments and systems relating to the synchronous digital hierarchy". [27] ITU-T Recommendation G.964: "V-interfaces at the digital local exchange (LE) - V5.1 interface (based on 2 048 kbit/s) for the support of access network (AN)". [28] ITU-T Recommendation G.965: "V-interfaces at the digital local exchange (LE) - V5.2 interface (based on 2 048 kbit/s) for the support of access network (AN)". [29] ETSI EN 300 324 (all parts): "V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN)". SIST EN 302 063 V1.1.1:2003
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[30] ETSI EN 300 347 (all parts): "V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN)". [31] ITU-T Recommendation G.961: "Digital transmission system on metallic local lines for ISDN basic rate access". [32] ITU-T Recommendation G.707: "Network node interface for the synchronous digital hierarchy (SDH)". [33] ETSI EN 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". [34] ETSI EN 301 215 (all parts): "Fixed Radio Systems; Point to Multipoint Antennas; Antennas for point-to-multipoint fixed radio systems in the 11 GHz to 60 GHz band". [35] IEC 60154-2: "Flanges for waveguides. Part 2: Relevant specifications for flanges for ordinary rectangular waveguides". [36] ITU-T Recommendation G.723.1: "Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbit/s". [37] ETSI EN 301 213-5: "Fixed Radio Systems; Point-to-multipoint equipment; Point-to-multipoint digital radio systems in frequency bands in the range 24,25 GHz to 29,5 GHz using different access methods; Part 5: Multi-Carrier Time Division Multiple Access (MC-TDMA) methods". [38] ETSI EN 300 011-1: "Integrated Services Digital Network (ISDN); Primary rate User Network Interface (UNI); Part 1: Layer 1 specification". [39] ITU-T Recommendation G.962: "Access digital section for ISDN primary rate at 2 048 kbit/s". [40] ETSI ETS 300 012: "Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1 specification and test principles". [41] ITU-R Recommendation F.1520: "Radio-frequency arrangements for systems in the fixed service operating in the band 31.8-33.4 GHz". [42] CEPT/ECC/REC 02-02: "Channel arrangements for digital fixed service systems (point-to-point and point-to-multipoint) operating in the frequency band 31 - 31.3 GHz". [43] ISO/IEC 8802-3: "Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications". [44] ATM User-Network Interface Specification V3.1. [45] ETSI EN 301 489-1: " Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements". [46] 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". [47] Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (R&TTE Directive). SIST EN 302 063 V1.1.1:2003
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3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: gross bit rate: transmission bit rate over the air NOTE: In the case of a transmitter working in burst mode, the gross bit rate is the instantaneous maximum bit rate during the burst. The gross bit rate has a unique relation to the symbol rate through the implemented modulation format. multi-carrier: systems where more than one modulated sub-carrier is radiated from the same transmitter NOTE 1: A system that uses several transmitters into a non-active antenna is not considered as a multi-carrier system. Systems using FDM/OFDM modulation formats are also not considered multi-carrier unless more that one separate FDM/OFDM signal set is transmitted from the same transmitter. NOTE 2: FDMA systems are intrinsically multicarrier, because any single sub-carrier may be easily discriminated at RF level (unlike OFDM modulations) and activated according to the traffic requirements. However, for the purpose of the present document, a FDMA system are also considered as a whole (fully loaded) single signal set, unless more that one FDMA signal set is transmitted from the same transmitter. 3.2 Symbols For the purposes of the present document, the following symbols apply: dB decibel dBm decibel relative to 1 mW GHz Gigahertz km kilometre Mbit/s Megabit per second MHz Megahertz ns nanosecond ppm parts per million 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: AGC Automatic Gain Control ATPC Automatic Transmit Power Control BER Bit Error Ratio CBR Constant Bit Rate CCS Central Controller Station CEPT Conference des administrations Européennes des Postes et Télécommunications CRS Central Radio Station CS Central Station CS-ACELP Conjugate-Structure Algebraic Code-Excited Linear-Prediction EIRP Equivalent Isotropically Radiated Power EMC ElectroMagnetic Compatibility FDD Frequency Division Duplex FDMA Frequency Division Multiple Access FS Fixed Service FWA Fixed Wireless Access IF Intermediate Frequency ISDN Integrated Service Digital Network ITU International Telecommunications Union LO Local Oscillator SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 10 MC-TDMA MultiCarrier TDMA MP MultiPoint MP-MP MultiPoint to MultiPoint NNI Network Node Interface OJEC Official Journal of the European Communities PDH Plesisynchronous Digital Hierarchy P-MP Point to Multipoint RF Radio Frequency RS Repeater Station RSL Receive Signal Level Rx Receiver TDD Time Division Duplex TDMA Time Division Multiple Access TE Terminal Equipment TM Transmission and Multiplex TMN Telecommunications Management Network TS Terminal Station Tx Transmitter 4 General characteristics 4.1 General system architecture CSTSCoreNetworkTSTSTSTSRSTETERSTETETETETETESNItootherCSsorCSTSLocalSwitchingTSTSTSTSRSTETERSTETETETETETEtootherCSsorOmnidirectional orsectorial antennaDirectionalAntennaCoreNetworkNNIAccess networkCore networkCustomer PremisesnetworkUNIUNI Figure 1: Reference diagram CS: The Central Station, which interfaces the network. It can be integrated or divided into two units: i) the Central Controller Station (CCS); ii) the Central Radio Station (CRS) also called the radio unit, which is the central baseband/radio transceiver equipment. More than one CRS may be controlled by one CCS. TS: The Terminal Station (outstations with subscriber interfaces). A TS may serve more than one Terminal Equipment (TE). SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 11 RS: The Repeater Station (radio repeater outstations with or without subscriber interfaces). An RS may serve one or more TS or be connected to another RS. TE: Terminal Equipment. NNI: Network Node Interface. SNI: Service Node Interface (e.g. as described in EG 202 306). UNI: User Network Interface (e.g. as described in EG 202 306). The diagram in figure 1 shows the most common and standardized approach for access network application; however when broadcast or private networks are concerned, different architectures are possible. For example, the CS may be directly connected to the Core Network by means of a NNI interface and the switching functionality may be implemented into CS (e.g. CS is an ATM switching into an ATM network) and, for private networks, the UNI interfaces may be substituted by custom interfaces. The reference diagram includes the system elements and interfaces for different types of Multipoint system (both P-MP and MP-MP). Not all system elements are necessarily deployed in any particular network. The numbers of each type of station in a real deployment can vary considerably. The diagram shows only each possible type of station and each possible type of connection between stations that may occur. While in P-MP applications there are typically few CS and RS connecting large number of TS, in a typical MP-MP system, there are many RS stations and a smaller number of TS stations associated with each central station (CS). Although a single Central Station is possible, as shown, a typical system will deploy several Central Stations, each with connection to the SNI of the local switching centre or directly to the NNI of the core network(s). These interconnections may be by means of radio links, optical fibre or other means. Subscriber to subscriber connections may also be provided in some networks, not routed via an external core network. The route from a network connection point to a user's terminal equipment interface may be via a single radio path (typical for P-MP systems) or via one or more radio repeaters (typical for MP-MP systems). 4.2 Frequency bands and channel arrangements 4.2.1 Channel plan The following frequency band could be used: • 31,8 GHz to 33,4 GHz according to CEPT/ERC/REC 01-02 [1] and ITU-R Recommendation F.1520 [41]; • 31,0 GHz to 31,3 GHz according to CEPT/ECC/REC 02-02 [42]. The band 31,5 GHz to 31,8 GHz might also be used on a national basis, taking into account the protection requirements of the allocated passive Services (in particular the Earth Exploration Satellite Service and the Space Research Service). 4.2.2 Channel arrangements Refer to annexes A, B and C. 4.2.3 Duplex methods FDD and TDD may be used. 4.3 Compatibility requirements There is no requirement to operate the CS from one manufacturer with the TS and RS from another manufacturer. SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 12 4.4 Environmental conditions The equipment shall be required to meet the environmental conditions set out in EN 300 019 [2] 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) The equipment intended for operation within temperature controlled locations or partially temperature controlled locations shall meet the requirements of EN 300 019-1-3 [2] classes 3.1 and 3.2 respectively. Optionally, the more stringent requirements of EN 300 019-1-3 [2] classes 3.3 (Non-temperature controlled locations), 3.4 (Sites with heat trap) and 3.5 (Sheltered locations) may be applied. 4.4.2 Equipment for non-weather protected locations (outdoor locations) Equipment intended for operation within non-weather protected locations shall meet the requirements of EN 300 019-1-4 [2] class 4.1 or 4.1E. Class 4.1 applies to many European countries and class 4.1E applies to all European countries. For systems supplied, within a specific radio cabinet, which gives full protection against precipitation, wind, etc. the EN 300 019-1-3 [2] classes 3.3, 3.4 and 3.5 may be applied also for equipment intended for operation in non-weather protected locations. 4.5 Power supply The power supply interface shall be in accordance with the characteristics of one or more of the secondary voltages foreseen in ETS 300 132-1 [3] and ETS 300 132-2 [4]. NOTE: Some applications may require a power supply voltage range that is not covered by ETS 300 132-1 [3] and ETS 300 132-2 [4]. 4.6 Electromagnetic compatibility conditions Fixed Service equipment shall operate under the conditions specified in EN 301 489-1 [45] and EN 301 489-4 [46] of the EMC multipart harmonized standard or to the equivalent harmonized EN 300 385 [5], both are a basis for presumption of conformity to article 3.1b of the R&TTE Directive [47], however the latter will cease this role by the date reported in the OJEC. 4.7 TMN interfaces TMN interface, if any, should be in accordance with ITU-T Recommendation G.773 [6]. 4.8 Synchronization of interface bit rates Certain digital services require the system to provide synchronized interfaces at terminal interface point. Such systems shall include methods enabling internal and external synchronization to the network. The principles for synchronization shall be met according to ITU-T Recommendation G.810 [7]. Tolerances shall be in accordance with ITU-T Recommendations G.812 [8] and G.823 [10] for systems providing PDH interfaces and/or ITU-T Recommendations G.813 [9] and G.825 [11] for systems providing SDH interfaces. Services that may require external synchronization interfaces are for instance CBR (Constant Bit Rate) services such as n × 2 Mbit/s and n × 64 kbit/s, in particular when data interfaces are delivering tributaries coming from different sources. SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 13 4.9 Branching/feeder/antenna requirements If high gain antennas are required for the Terminal Stations to cover longer hop length they shall comply with EN 300 833 [33]. For other hop lengths the antennas for the TS shall comply with EN 301 215 [34]. Different types of antennas are envisaged for the CS depending on the cell structure of the radio cell covered by the CS. Those antennas shall also comply with EN 301 215 [34]. 4.9.1 Waveguide flanges If flanges (or other connector types) are required at reference point(s) B, B', C, C' of the RF-system block diagram (figure 2) the following types according to IEC 60154-2 [35] shall be used: UBR/PBR/CBR 320, for the complete frequency range 31,0 GHz to 33,4 GHz. 4.9.2 Return loss Where antennas are an integral part of the TS, RS and the CS radio equipment, there are no requirements to be defined at reference point C'/C in the direction to the transceiver of the CS, TS and RS respectively. When separate antennas are used the return loss referred to C'/C measured in the direction of the equipment shall be better than 14 dB. 4.9.3 Intermodulation products No requirements are necessary to be defined. 5 System parameters 5.1 System capacity The system capacity considered in the present document for a P-MP system is the transmission capacity of the CS, which consists of the maximum number of TSs simultaneously connected to the CS and transporting their maximum payload bit rate each utilizing interfaces according to table 2. The maximum number of TSs, simultaneously connected to a CS, shall be declared by the manufacturer. The minimum payload (expressed either as the number of 64 kbit/s signals or an aggregate bit rate), which a CS shall be capable of transporting, will be defined in the parts of the present document related to the different access methods. Where the equipment can carry alternative traffic types (e.g. ISDN circuits or ATM cells) the CS shall be capable of carrying at least this minimum payload with at least one type of traffic. In the case of an MP-MP system, the capacity is determined by the density of users in a given area that can each receive a given guaranteed transmission capacity, for a given number of radio channels available to the system. 5.2 Round trip delay The round trip delay for 64 kbit/s telephony traffic channel shall not exceed 20 ms. Longer round trip delays may result at other bit rates and when using speech coding at rates lower than 64 kbit/s. In order to guarantee that the delay introduced by the system into the transmission network does not degrade the quality of the telephone communication, compliance to ITU-T Recommendation G.131 [12] shall be ensured. 5.3 Transparency The system shall be fully transparent. The network node and the subscriber equipment (points UNI and SNI in figure 1) communicate with each other without being aware of the radio link. SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 14 5.4 Voice coding method If the system provides voice services, where the voice encoding/decoding is within the system, one or more of the following coding methods should be used: • 64 kbit/s:
ITU-T Recommendation G.711 [13]; • 32 kbit/s:
ITU-T Recommendation G.726 [14]; • 16 kbit/s:
ITU-T Recommendation G.728 [15]; • 8 kbit/s:
ITU-T Recommendation G.729 [16]; • 5,3 kbit/s/6,3 kbit/s, dual rate: ITU-T Recommendation G.723.1 [36]. Other voice coding methods may be employed if the quality for voice transmission is adequate. The coding method used shall be declared by the manufacturer. 5.5 Transmitter characteristics 5.5.1 RF block diagram All Transmitter characteristics are referred to a system under any load condition. The values and measurements are referred to point B' or C' of figure 2. Measurements shall be made when the CS (at least one transceiver equipment) is under full load conditions, to be declared by the manufacturer. The specified transmitter characteristics shall be met with the appropriate input signals applied at point E of figure 2 and measured at point E'. The RF system block diagram in figure 2 shows the point to point connection of the P-MP transceiver between a CRS and one TS (or RS, or between an RS and TS or between an RS and another RS).
X'
Z'
A'
B'
C'
D'
X
Z
A
B
C
D
Data
Interface
E'
Modulator
Transmitter
RF TX Filter
Branching
Network
Feeder
Feeder
Branching
Network
RF RX Filter
Receiver
Data
Interface
E
Demodulator
NOTE 1: The points shown above are reference points only; points B, C and D, B', C' and D' may coincide. NOTE 2: The "DATA INTERFACE" block contains the mapping functionalities required for transforming from/to packet data protocols into/from raw data stream.
Figure 2: RF block diagram 5.5.2 Transmitter output power The maximum mean transmitter output power (for CS, RS and TS) shall not exceed +30 dBm including tolerances. Care shall be taken that the system Equivalent Isotropically Radiated Power (EIRP) defined in the ITU-R Radio Regulations [17] is not exceeded. SIST EN 302 063 V1.1.1:2003
ETSI ETSI EN 302 063 V1.1.1 (2003-01) 15 5.5.3 Transmitter nominal output power Refer to annexes A, B and C for requirements relevant to a particular access technique. A capability for output power level adjustment may be required for regulatory purposes, in which case the range of adjustment, either by fixed or automatic attenuators, should be in increments of 5 dB or less. 5.5.4 Transmit power and frequency control Refer to annexes A, B and C for requirements relevant to a particular access technique. 5.5.4.1 Automatic Transmit Power Control (ATPC), uplink ATPC is a mandatory feature in the uplink of P-MP systems that have maximum transmitter power density greater than 0,5 dBm/MHz, and in both direction of MP-MP links that have a maximum power density greater than 0,5 dBm/MHz. Equipment with ATPC will be subject to manufacturer declaration of the ATPC ranges and related tolerances. Testing shall be carried out with output power level corresponding to: • ATPC set manually to a fixed value for system performance; • ATPC set at maximum Tx output power for Tx parameters. 5.5.4.2 Automatic Transmit Power Control (ATPC), downlink ATPC in the downlink of a P-MP system is an optional feature. Equipment with ATPC will be subject to manufacturer declaration of the ATPC ranges and related tolerances. Testing shall be carried out with output power level corresponding to: • ATPC set manually to the maximum and to the minimum values for system performance; • ATPC set at maximum Tx output power for Tx parameters. 5.5.4.3 Remote Transmit Power Control (RTPC) RTPC is an optional feature. The use of the RTPC may depend on the access scheme. Equipment with RTPC will be subject to manufacturer declaration of the RTPC ranges and related tolerances. Testing shall be carried out with output power level corresponding to: • RTPC set manually to the maximum and to the minimum values for system performance; • RTPC set at maximum Tx output power for Tx parameters; • RF spectrum mask shall be verified at three point
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