1、ETSI EN 301 253 1.2.1 (2001-02) European Standard (Telecommunications series) Fixed Radio Systems; Point-to-multipoint equipment; Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint digital radio systems in frequency bands in the range 3 GHz to 11 GHz 2 ETSI EN 301 253 V1.
2、2.1 (2001-02) Tt- Reference REN/TM-04111-21 Keywords CDMA, DRRS, multipoint, radio, RLL, transmission, FWA 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
3、 la Sous-prfecture de Grasse (06) 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
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6、nd the foregoing restriction extend to reproduction in all media. 8 European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 301 253 V1.2.1 (2001 -02) Contents Intellectual Property Rights 5 Foreword 5 Introduction 6 1 1.1 1.2 1.3 1.4 2 3 3.1 3.2 3.3 4 4.1 4.2 4.2.1
7、4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 5 5.1 5.2 5.3 5.4 5.4.1 5.4.2 5.4.2.1 5.4.2.2 5.4.3 5.4.3.1 5.4.3.2 5.4.4 5.4.5 5.5 5.5.1 5.5.2 5.5.3 5.5.4 5.5.4.1 5.5.4.2 5.5.4.3 5.6 5.6.1 5.6.2 Scope 7 Applications 7 Compatibility 7 References 8 Definitions, symbols and abbreviations . 10 Frequency bands and channe
8、l arrangements . 7 Access Method 7 Definitions 10 Symbols 11 Abbreviations 11 General system architecture 12 Sub-system Components . 13 Transmission Error Performance 13 Round Trip Delay 13 Telecommunications Management Network (TMN) interface . 14 Synchronization . 14 Radio characteristics . 14 Sys
9、tem characteristics 13 Transparency and voice coding methods . 14 FH characteristics 14 Frequency bands 14 Channel arrangements . 14 Maximum System Capacity . 15 Transmitter (Tx) characteristics . 15 Tx power range 15 Automatic Transmit Power Control (ATPC) 15 Remote Transmit Power Control (RTPC) 16
10、 Spectrum density mask . 16 Discrete CW components exceeding the spectrum mask limit (all stations) 17 Transmit Power Control . 15 Spectrum Mask 16 Transmitter spurious emissions . 18 Radio Frequency (RF) tolerance . 18 Receiver (Rx) Characteristics 18 Input level range 18 Spurious Emissions 18 BER
11、Performance 19 Interference Sensitivity 19 Co channel interference sensitivity 19 Adjacent channel interference sensitivity . 20 Antenna Port Characteristics 20 RF interface . 20 Return loss . 20 Broadband Continuous Wave (CW) interference rejection capability . 20 6 7 7.2 Environmental Conditions .
12、 21 Types of subscriber equipment and network exchange interface 21 Power supply and environmental characteristics 21 7.1 Power Supply 21 ETSI 4 ETSI EN 301 253 V1.2.1 (2001-02) 7.2.1 Equipment within weather-protected locations 22 7.2.2 Equipment for non weather-protected locations 22 7.3 ElecoMagn
13、etic Compatibility (EMC) Conditions . 22 Annex A (informative): Bibliography . 23 History . 24 ETSI 5 ETSI EN 301 253 V1.2.1 (2001-02) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these esse
14、ntial 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 standards“, which is available from the ETSI Secretariat. Latest update
15、s 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 not referenced in ETSI SR O00 314 (or the updates on the ETSI Web server
16、) 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); Di
17、gital Radio Relay Systems (DRRS); Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint DRRS in fi-equency bands in the range 3 GHz to 11 GHz“. National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of latest publication o
18、f 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 ETSI 6 ETSI EN 301 253 V1.2.1 (2001-02) Introduction The main field of application of Point-to-Multipoint (P-MP) Sy
19、stems is to provide access to both public and private networks (Public Switched Telephone Network (PSTN), Private Data Network (PDN), .). By means of P-MP systems the network service area may be extended to cover both distant and scattered subscriber locations; and the systems may be applied to buil
20、d new access networks covering both urban and rural areas. Subscribers 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, new data services). P-MP sys
21、tems provide standard network interfaces and transparently connect subscribers to the appropriate network node. These systems allow a service to be connected to a number of subscribers ranging ftom a few to several thousand, and over a wide range of distances. P-MP systems are generally configured a
22、s Pre-Assigned Multiple Access (PAMA) Radio Systems or as Demand Assigned Multiple Access (DAMA) Radio Systems. The essential features of a typical P-MP DAMA Radio System are: - efficient use of the radio spectrum; - concentration; - transparency. Radio is often the ideal way of obtaining communicat
23、ions at low cost and almost independent of distance, and difficult topography. Moreover, a small number of sites is required for these installations, thus facilitating rapid implementation and minimizing maintenance requirements of the systems. Concentration means that m subscribers can share n radi
24、o channels (m 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 means that every subscriber has access to every channel (instead of a fixed assignment as in most multiplex systems). When a call is initiated
25、an available channel is allocated to it. When the call is terminated, the channel is released for another call. Concentration requires the use of distributed intelligent control which in turn allows many other operation and maintenance functions to be added. Transparency means that the exchange and
26、the subscriber equipment communicate with each other without being aware of the radio link. ETSI 7 ETSI EN 301 253 V1.2.1 (2001-02) 1 Scope 1 .I Appl cat ions The scope of the present document covers the following typical P-MP applications, delivered directly or indirectly, or in any superimposed tr
27、ansport network layer: voice; fax; voiceband data: telex; data; integrated Services Digital Network (ISDN); Internet access. 1.2 Frequency bands and channel arrangements The present document covers Fixed Service allocations in the 3 GHz to 11 GHz bands. Bands presently identified and provided with s
28、pecific channel arrangements by CEPT for point to multipoint applications between 3 GHz and 11 GHz are: - - 3 410 MHz to 3 600 MHz CEPTERC Recommendation 14-03 3; 3 600 MHz to 4 200 MHz CEPTERC Recommendation 12-08 2; - 10,15 GHz to 10,3 GHz paired with 10,50 GHz to 10,65 GHz CEPTERC Recommendation
29、12-05 i. The present document may cover equipment which uses either Frequency Division Duplexing or Time Division Duplexing. NOTE: As with other point-to-multipoint standards, attention should be given to assigning spectrum so as to allow different systems to operate in adjacent assigned frequencies
30、 without unacceptable mutual interference. This is the responsibility of the regulatory authorities that are advised to note any guidelines produced by CEPT, particularly those with reference to spectrum where different duplex methods are to be used. 1.3 Access Method The standard covers Frequency H
31、opping (FH) - Code Division Multiple Access (FH-CDMA) systems. NOTE: The method described in the present document applies slow FH defined in TR 101 274 30, with a hopping period up to 400 ms. During the dwell time, several different links in the same area may operate on different sub-channels in a m
32、anner which resembles the characteristics and properties of FDMA systems. The sub-channel supporting each link may be further subdivided using frequency division, time division or a combination of both techniques. (The terms “hopping period“, “dwell time“ and “sub-channel“ are defined in clause 3.1)
33、. 1.4 Com pati bility The present document is not intended to ensure that a Central Station (CS) from one manufacturer will inter-operate with a Terminal Station (TS) or Repeater Station (RS) from another manufacturer. ETSI 8 ETSI EN 301 253 V1.2.1 (2001-02) 2 References The following documents cont
34、ain provisions which, through reference in this text, constitute provisions of the present documen t. 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-spe
35、cific reference, the latest version applies. u1 CEPTERC Recommendation 12-05: “Harmonized radio frequency channel arrangements for digital terrestrial fixed systems operating in the band 10.0 - 10.68 GHz“. CEPTERC Recommendation 12-08: “Harmonized radio frequency channel arrangements and block alloc
36、ations for low, medium and high capacity systems in the band 3 600 MHz to 4 200 MHz“. 121 131 CEPTERC Recommendation 14-03: “Harmonized radio frequency channel arrangements for low and medium capacity systems in the band 3 400 MHz to 3 600 MHz“. ETSI ETS 300 012: “Integrated Services Digital Network
37、 (ISDN); Basic user-network interface Layer 1 specification and test principles“. ETSI ETS 300 019 (all parts): “Equipment Engineering FE); Environmental conditions and environmental tests for telecommunications equipment“. ETSI ETS 300 132: “Equipment Engineering (EE); Power supply interface at the
38、 input to telecommunications equipment“. 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“. 141 151 161 171 u41 ETSI ETS 300 132-2: “Equipment En
39、gineering (EE); Power supply interface at the input to telecommunications equipment; Part 2: Operated by direct current (dc)“. ETSI ETS 300 324 (all parts): “V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN)“. ETSI ETS 300 347 (all parts): “V inte
40、rfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Network (AN)“. ETSI EN 300 385: “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for fixed radio links and ancillary equipment“. IEC 60169: “Radio-frequenc
41、y connectors“. IEC 60339: “General purpose rigid coaxial transmission lines and their associated flange connectors“. ITU-R Recommendation F.697-2: “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 utiliz
42、ing digital radio-relay systems“. 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“. ITU-
43、T Recommendation G.131: “Control of talker echo“. ITU-T Recommendation G.703: “Physical/electrical characteristics of hierarchical digital interfaces“. ETSI 9 ETSI EN 301 253 V1.2.1 (2001-02) i181 i191 i231 i241 i251 i261 i271 i281 i291 i301 i311 i321 i331 i341 ITU-T Recommendation G.7 11 : “Pulse c
44、ode modulation (PCM) of voice frequencies“. ITU-T Recommendation G.723.1: “Dual rate speech coder for multimedia communications transmitting at 5.3 and 6.3 kbids“. ITU-T Recommendation G.726: “40, 32,24, 16 kbids Adaptive Differential Pulse Code Modulation ( ADPCM) “ . ITU-T Recommendation G.728: “C
45、oding of speech at 16 kbids using low-delay code excited linear prediction“. ITU-T Recommendation G.729: “C source code and test vectors for implementation verification of the G.729 8 kbids CS-ACELP speech coder“. ITU-T Recommendation G.773: “Protocol suites for Q-interfaces for management of transm
46、ission systems“. ITU-T Recommendation G.821: “Error performance of an international digital connection operating at a bit rate below the primary rate and forming part of an integrated services digital network“. ITU-T Recommendation G.826: “Error performance parameters and objectives for internationa
47、l, constant bit rate digital paths at or above the primary rate“. ITU-T Recommendation G.827: “Availability parameters and objectives for path elements of international constant bit-rate digital paths at or above the primary rate“. ITU-T Recommendation Q.552: “Transmission characteristics at 2-wire
48、analogue interfaces of digital exchanges“. ITU-T Recommendation Q.553: “Transmission characteristics at 4-wire analogue interfaces of digital exchanges“. ITU-T Recommendation R.20: “Telegraph modem for subscriber lines“. ETSI TR 101 274: “Transmission and Multiplexing (TM); Digital Radio Relay Syste
49、ms (DRRS); Point-to-multipoint DRRS in the access network: Overview of different access techniques“. CEPTERC Recommendation 74-01 : “Spurious emissions“. 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 (CSMNCD) access method and physical layer specifications“. ITU-T Recommendation V series: “Data communication over the telephone network“. ITU-T Recommendation X series: “
