1、ETSI EN 300 636 VI .3.1 (2001-02) European Standard (Telecommunications series) Fixed Radio Systems; Point-to-multipoint equipment; Time Division Multiple Access (TDMA); Point-to-multipoint digital radio systems in frequency bands in the range 1 GHz to 3 GHz 2 ETSI EN 300 636 V1.3.1 (2001-02) Tt- Re
2、ference REN/TM-04111-17 Keywords TDMA, multipoint, transmission, radio, RLL ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (0
3、6) No 7803/88 Important notice Individual copies of the present document can be downloaded from: present document may be made available in more than one electronic version or in print. In any case of existing perceived difference in contents between such versions, the reference version is the Portab
4、le 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
5、on the current status of this and other ETSI documents is available at :/.$./$/ If you find errors in the present document, send your comment to: editor etsi.fr Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction ex
6、tend to reproduction in all media. 8 European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 300 636 V1.3.1 (2001 -02) Contents Intellectual Property Rights 4 Foreword 4 Introduction 4 1 1.1 1.2 1.3 2 3 3.1 3.2 4 4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 5 5.1 5.2 5.3 5
7、.3.1 5.3.2 5.3.2.1 5.3.2.2 5.3.3 5.3.4 5.4 5.4.1 5.4.2 5.4.3 5.4.4 5.4.4.1 5.4.4.2 5.4.5 5.5 5.5.1 5.5.2 Scope 6 Frequencies . 6 Access method 6 Applications 6 References 6 Symbols and abbreviations 7 General system architecture 8 Symbols 7 Abbreviations 8 Sub-system types . 9 System characteristics
8、 9 System capacity . 9 Transmission error performance . 9 Round trip delay 9 Transparency . 9 Telecommunications Management Network (TMN) interface . 9 Radio characteristics . 10 Frequency bands 10 Transmitter characteristics . 10 TX power range . 10 Spectrum density mask . 11 Channel arrangement .
9、10 Spectrum mask 11 Discrete CW lines exceeding the spectrum mask limit . 13 Transmitter spurious emissions . 13 RF tolerance 13 Receiver characteristics . 14 Input level range 14 Spurious emissions . 14 BER performance 14 Interference sensitivity . 14 Adjacent channel rejection 14 Co-channel reject
10、ion . 14 RF equipment port . 15 Image fkequency rejection 15 RF interface . 15 Return loss . 15 6 7 7.1 Power supply . 16 7.2.1 7.2.2 7.3 History 17 Types of services/subscriber and exchange interfaces 15 Power supply and environmental characteristics 16 7.2 Environmental conditions 16 Equipment wit
11、hin weather protected locations 16 Equipment for non-weather protected locations 16 Electromagnetic compatibility conditions . 16 7.4 FeededAntenna requirements 16 . ETSI 4 ETSI EN 300 636 V1.3.1 (2001-02) Intellectual Property Rights IPRs essential or potentially essential to the present document m
12、ay 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 O00 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI
13、standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server ClattD:/www.etsP.c/iDr. 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 n
14、ot referenced in ETSI SR O00 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 ti
15、tle of the present document was: “Transmission and Multiplexing (TM); Time Division Multiple Access (TDMA) point-to-multipoint digital radio systems in the frequency range 1 to 3 GHz“. National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of late
16、st publication of new National Standard or endorsement of this EN (dop/e): Date of withdrawal of any conflicting National Standard (dow): 16 February 2001 31 May 2001 30 November 2001 30 November 2001 Introduction The main field of application of Point-to-Multipoint (P-MP) systems is to provide acce
17、ss to both the Public Switched Telephone Network (PSTN) and private networks (Private Digital Network (PDN), particularly for remote subscribers. By means of P-MP systems the network service area may be extended to cover both distant and scattered subscriber locations. These remote subscribers, in a
18、 similar manner to the city subscriber, are offered the full range of services by the particular public or private network. Subscribers have access to these services by means of the various standardized user network interfaces (2-wire loop, data, .). P-MP applications in the metropolitan and urban e
19、nvironment are mainly for the provision of new data services for business subscribers and for the extension of Integrated Services Digital Network (ISDN) services to local subscribers. The frequency bands below 3 GHz are particularly suitable for the extension of telecommunications services to dista
20、nt rural and suburban subscribers. P-MP systems provide standard network interfaces and transparently connect subscribers to the appropriate network node (local switch, .). These systems allow a service to be connected to a number of subscribers ranging from a few users to several hundred and over a
21、 wide range of distances. P-MP systems are generally, but not necessarily, configured as pre-assigned systems or as Demand Assigned Multiple Access (DAMA) radio systems. ETSI 5 ETSI EN 300 636 V1.3.1 (2001-02) The essential features of a typical P-MP DAMA radio systems are: - - concentration: effici
22、ent use of the radio spectrum; - transparency. Radio is often the ideal way of obtaining communications at low cost and almost independent of distance and difficult topology. Moreover, only a small number of sites are required for these installations, thus facilitating rapid implementation and minim
23、izing maintenance requirements of the systems. Concentration means that N subscribers can share n channels (N being larger than n), allowing better use to be made of the available frequency spectrum and at a lower equipment cost. The term “multi-access is derived from the fact that every subscriber
24、has access to every channel (instead of a fixed assignment as in most multiplex systems). When a call is initiated one of the available channels is allocated to it. When the call is terminated, the channel is released for another call. Concentration requires the use of distributed intelligent contro
25、l which in turn allows many other operation and maintenance functions to be added. Transparency means that the exchange and the telephone communicate with each other without being aware of the radio link. ETSI 6 ETSI EN 300 636 V1.3.1 (2001-02) 1 Scope 1 .I Appl cat ions The scope of the present doc
26、ument covers the following Point-to-Multipoint (P-MP) applications: - voice; - telex; - - low speed data (up to 64 kbids); Integrated Services Digital Network (ISDN) (basic rate access). 1.2 Frequencies The present document covers fixed P-MP services operating in the 1,5 GHz, 2,2 GHz, 2,4 GHz and 2,
27、6 GHz bands and having the frequency plans as given in CEPT Recommendation T/R 13-01 i for 1,5 GHz, 2,2 GHz and 2,6 GHz bands. For the 2,4 GHz band, the ITU-R Recommendation F.701-2 2 is applicable. 1.3 Access method The present document covers Time Division Multiple Access (TDMA) systems. 2 Referen
28、ces The following documents contain provisions which, through reference in this text, constitute provisions of the present documen t. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisio
29、ns do not apply. For a non-specific reference, subsequent revisions do apply. u1 CEPT Recommendation T/R 13-01: “Preferred channel arrangements for fixed services in the range 1 to 3 GHz“. ITU-R Recommendation F.701-2 (1990): “Radio-frequency channel arrangements for analogue and digital point-to-mu
30、ltipoint radio systems operating in frequency bands in the range 1 350 to 2 690 GHz (1,5, 1,8, 2,0, 2,2, 2,4 and 2,6 GHz)“. ITU-T Recommendation G.821 (1990): “Error performance of an international digital connection operating at a bit rate below the primary rate and forming part of an integrated se
31、rvices digital network“. 121 131 141 ITU-T Recommendation G.773 (1990): “Protocol suites for Q-interfaces for management of transmission systems“. 151 ETSI EN 300 63 1: “Fixed Radio Systems; Point-to-Point Antennas; Antennas for Point-to-Point fixed radio systems in the 1 GHz to 3 GHz band“. ITU-T R
32、ecommendation G.712 (1993): “Transmission performance characteristics of pulse code modulation channels“. 161 171 ITU-T Recommendation R.20 (1988): “Telegraph modem for subscriber lines“. ETSI 7 ETSI EN 300 636 V1.3.1 (2001-02) u41 1151 ITU-T Recommendation G.703 (1991): “Physical/electrical charact
33、eristics of hierarchical digital interfaces“. ETSI ETS 300 012: “Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1 specification and test principles“. ETSI ETS 300 324 (Parts 1 to 5 and Part 7): “V interfaces at the digital Local Exchange (LE); V5.1 interface for the
34、support of Access Network (AN)“. ETSI EN 300 347 (Parts 1 and 2): “V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN)“. ETSI ETS 300 13 (Parts 1 and 2): “Equipment Engineering (EE); Power supply interface at the input to telecommunications equipmen
35、t“. ETSI ETS 300 019 (Parts 1 and 2): “Equipment Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Parts 1-0 to 1-7: Classification of environmental conditions. Parts 2-0 to 2-7: Specification of environmental tests“. ETSI EN 300 385 (V1.2.1): “Elec
36、tromagnetic compatibility and Radio spectrum Matters (ERM); ElecoMagnetic Compatibility (EMC) standard for fixed radio links and ancillary equipment“. CEPTERC Recommendation 74-01 : “Spurious emissions“. 3 3.1 Symbols and abbreviations Symbols For the purposes of the present document, the following
37、symbols apply: dB dBm GHZ HZ kbids kHz Mbids MHZ ms decibel decibel relative to 1 milliwatt GigaHertz Hertz kilobits per second kiloHertz Megabits per second MegaHertz millisecond ETSI 8 3.2 Abbreviations ETSI EN 300 636 V1.3.1 (2001-02) For the purposes of the present document, the following abbrev
38、iations apply: BER CCS CRS cs CSmin DAMA EMC ISDN PDN P-MP PRBS PSTN RS RX TDMA TMN TS TX Bit Error Rate Central Controller Station Central Radio Station Central Station minimum practical Channel Separation (for a given radio-frequency channel arrangement) Demand Assigned Multiple Access Electromagn
39、etic Compatibility Integrated Services Digital Network Private Digital Network Point-to-Multipoint Pseudo-Random Binary Sequence Public Switched Telephone Network Repeater Station Receiver Time Division Multiple Access Telecommunications Management Network Terminal Station Transmitter 4 General syst
40、em architecture A system could consist of physical sub-systems as follows (see figure 1): Exchange NOTE: Abbreviations used in figure 1 are described in clause 4.1. Figure 1 : General system architecture ETSI 9 ETSI EN 300 636 V1.3.1 (2001-02) 4.1 Sub-system types CS: Central Station which can be su
41、bdivided into two units: - - Terminal station (outstations with subscriber interfaces). Repeater Station (radio repeater outstations with or without subscriber interfaces). the exchange unit, also called Central Controller Station (CCS) - (interface to the local switch); and the radio unit, also cal
42、led Central Radio Station (CRS) - (central basebandradio transceiver). TS: RS: The central station performs the interconnection with the local switching exchange, carrying out a concentration function by sharing the total number of available channels in the system. The central station is linked to a
43、ll remote stations (Repeater Stations (RS) or Terminal Stations (TS) by microwave transmission paths. Whenever an existing digital transmission link is available, the network implementation can be optimized by separating the CCS installed at the exchange site and the CRS. Terminal stations are situa
44、ted as close as possible to the “centre of gravity“ of the subscriber locations. They interface directly with the subscriber loops. The general characteristics which are typical for P-MP systems are considered in the present document. These characteristics have been categorized under four headings:
45、- system; - radio; - - type of services/subscriber and exchange interfaces; power supply and environmental characteristics. 4.2 System character ist i cs 4.2.1 System capacity The system traffic carrying capacity shall be n x 2 Mbids (n = 1, 2 or 4). 4.2.2 Transmission error performance Transmission
46、 performance shall comply with ITU-T Recommendation G.821 3. 4.2.3 Round trip delay The round trip delay (including transmission delay) shall not exceed 20 ms for a voice encoded 64 kbids time slot. 4.2.4 Transparency The system shall be fully transparent: the exchange and the telephone subscriber c
47、ommunicate with each other without being aware of the radio link. 4.2.5 Telecommunications Management Network (TMN) interface The TMN interface, if any, should be in accordance with IT-T Recommendation G.773 4. ETSI 10 ETSI EN 300 636 V1.3.1 (2001-02) 2,4 GHz 5 2 300 MHz to 2 500 MHz 94 MHz Radio ch
48、aracteristics 2.6 GHz 5.1 Frequency bands Five frequency plans are used for digital P-MP systems. Two in the 1,5 GHz band, one each in the 2,2 GHz, 2,4 GHz and the 2,6 GHz band. 2 520 MHz to 2 670 MHz 74 MHz 5.2 Channel arrangement Table 1 : Frequency bands Frequency band I Band limits I Transmirece
49、ive spacing 1.5 GHz fI I 1 350 MHz to 1 375 MHz and 1 492 MHz to 1 51 7 MHz I 142 MHz 1,5 GHz (Il) 2,2 GHz I 1 375 MHz to 1 400 MHz and 1 427 MHz to 1 452 MHz I 12 025 MHz to2 110 MHz and 2 200 MHz to2 290 MHz I 52 MHz 175 MHz Table 2: Channel spacing Minimum bit rate (Mbitls) I 21 41 8 Channel sDacina IMHz I 1.75/2 I 334 I 334 5.3 Transmitter characteristics 5.3.1 TX power range The maximum value of output power, referred to point C shall not exceed 35 dBm. If for proper operation of the system or for regulatory purposes, a reduced range of o
