1、ETSI EN 301 179 1.2.1 (2001-02) European Standard (Telecommunications series) Fixed Radio Systems; Point-to-multipoint equipment; Frequency Hopping Code Division Multiple Access (FH-DMA); Point-to-multipoint Digital Radio Relay Systems (DRRS) in the bands within the range 1 GHz to 3 GHz 2 ETSI EN 30
2、1 179 V1.2.1 (2001-02) Tt- Reference REN/TM-04111-20 Keywords CDMA, DRRS, multipoint, radio, RLL, transmission 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 enregi
3、stre 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,
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6、ht and the foregoing restriction extend to reproduction in all media. 8 European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 301 179 V1.2.1 (2001-02) Contents Intellectual Property Rights 5 Foreword 5 Introduction 5 1 1.1 1.2 1.3 1.4 2 3 3.1 3.2 3.3 4 4.1 4.2 4.2
7、.1 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 Frequency bands and channel arrangements . 7 Access method 7 Applications 7 Compatibility 7 References 8 Defini
8、tions, symbols and abbreviations . 10 Symbols 11 General system architecture 12 Sub-system components 12 Transmission error performance . 13 Round trip delay 13 Transparency and voice coding methods . 13 Synchronization . 14 Frequency hopping characteristics 14 Radio characteristics . 14 Definitions
9、 10 Abbreviations 11 System characteristics 13 TMN interface . 14 Frequency bands 14 Channel arrangement . 14 System capacity . 15 Transmitter characteristics . 15 Tx power range 15 Remote Transmit Power Control (RTPC) 16 Spectrum mask 16 Spectrum density mask . 16 Radio frequency tolerance 18 Recei
10、ver characteristics . 18 Input level range 18 Spurious emissions . 18 Interference sensitivity . 19 Transmit power control 15 Automatic Transmit Power Control (ATPC) 15 Discrete CW components exceeding the spectrum mask limit (all stations) 17 Transmitter spurious emissions . 18 BER performance 19 C
11、o channel interference sensitivity 19 Adjacent channel interference sensitivity . 20 Broadband CW interference rejection capability 20 Antenna port characteristics . 20 RF interface . 20 Return loss . 20 6 Types of subscriber equipment and network exchange interface 21 7 Power supply and environment
12、al characteristics 21 7.1 Power Supply 21 7.2 Environmental Conditions . 21 ETSI 4 ETSI EN 301 179 V1.2.1 (2001-02) 7.2.1 Equipment within weather-protected locations 21 7.2.2 Equipment for non weather-protected locations 22 7.3 Electromagnetic Compatibility Conditions . 22 Annex A (informative): Bi
13、bliography . 23 History . 24 ETSI 5 ETSI EN 301 179 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 essential IPRs, if any, is publicly available for ETSI members and non
14、-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 updates are available on the ETSI Web server ClattD:/www.etsP.c/iDr. Pur
15、suant 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) which are, or may be, or may become, essential to the present do
16、cument. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission and Multiplexing (TM). The former title of the present document was: “Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Frequency Hopping Code Division
17、 Multiple Access (FH-CDMA); Point-to-multipoint DRRS in the bands within the range 1 GHz to 3 GHz“. National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (dop/e): Date of wi
18、thdrawal 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 access to both public and private networks (Public Switched Telephone Network (PSTN), Pri
19、vate 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 build new access networks covering both urban and rural areas. Subscribers are offered the full range of services
20、 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 systems provide standard network interfaces and transparently connect subscribers to the appropriate network nod
21、e. 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 as Pre-Assigned Multiple Access (PAMA) radio systems or as Demand Assigned Multiple Access (DAMA) radio system
22、s. The essential features of a typical P-MP DAMA radio system are: efficient use of the radio spectrum; concentration; transparency. ETSI 6 ETSI EN 301 179 V1.2.1 (2001-02) Radio is often the ideal way of obtaining communications at low cost and almost independent of distance, and difficult topograp
23、hy. 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 radio channels (m being larger than n), allowing better use to be made of the a
24、vailable 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 an available channel is allocated to it. When the call is terminated, the c
25、hannel 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 the subscriber equipment communicate with each other without being aware of
26、 the radio link. ETSI 7 ETSI EN 301 179 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 transport network layer: voice; 0 fax; voiceband data: telex; data up to 64 k
27、bids; ISDN; Internet Access. 1.2 Frequency bands and channel arrangements The present document covers Fixed Service bands at 1,5 GHz, 2,2 GHz, 2,4 GHz and 2,6 GHz. The frequency plans for the 1,5 GHz, 2,2 GHz and 2,6 GHz bands are given in CEPT T/R 13-01 7 and ITU-R Recommendation F.1098-1 20. For t
28、he 2,4 GHz band, the ITU-R Recommendation F.701-2 8 is applicable. 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 dif
29、ferent systems to operate in adjacent assigned frequencies 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 unlike duplex methods are to be
30、used. 1.3 Access method The present document covers Frequency Hopping - Code Division Multiple Access (FH-CDMA) systems. NOTE: The method described in the present document applies slow frequency hopping TR 101 274 26, with a hopping period up to 400 ms. During the dwell time, several different links
31、 in the same area may operate on different sub-channels in a manner 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 peri
32、od“, “dwell time“ and “sub-channel“ are defined in clause 3.1). 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
33、179 V1.2.1 (2001-02) 2 References 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
34、 reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. ETSI ETS 300 012: “Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1 specification and test principles“. ITU-T Recommendation Q.553 (1996): “Transmission character
35、istics at 4-wire analogue interfaces of digital exchanges“. ITU-T Recommendation Q.552 (1996): “Transmission characteristics at 2-wire analogue interfaces of digital exchanges“. ITU-T Recommendation G.821 (1996): “Error performance of an international digital connection operating at a bit rate below
36、 the primary rate and forming part of an integrated services digital network“. ITU-T Recommendation R.20: “Telegraph modem for subscriber lines“. ITU-T Recommendations V-series: “Data communication over the telephone network“. CEPT T/R 13-01 (1993): “Preferred channel arrangements for fixed services
37、 in the range 1-3 GHz“. ITU-R Recommendation F.701-2 (1997): “Radio-frequency channel arrangements for analogue and digital point-to-multipoint 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)“. ETSI ETS 300 019 (all parts): “Equipment
38、Engineering FE); Environmental conditions and environmental tests for telecommunications equipment“. ETSI ETS 300 132: “Equipment Engineering (EE); Power supply interface at the input to telecommunications equipment; Part 1: Operated by alternating current (ac) derived from direct current (dc) sourc
39、es; Part 2: Operated by direct current (dc)“. ITU-T Recommendation G.773 (1993): “Protocol suites for Q-interfaces for management of transmission systems“. ETSI EN 300 385: “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for fixed radio l
40、inks and ancillary equipment“. ITU-T Recommendation G.711 (1988): “Pulse code modulation (PCM) of voice frequencies“. ITU-T Recommendation G.726 (1990): “40, 32, 24, 16 kbids Adaptive Differential Pulse Code Modulation ( ADPCM) “ . ITU-T Recommendation G.728 (1992): “Coding of speech at 16 kbids usi
41、ng low-delay code excited linear prediction“. ITU-T Recommendation G.729 (1996): “C source code and test vectors for implementation verification of the G.729 8 kbids CS-ACELP speech coder“. ITU-R Recommendation F.697-2 (1997): “Error performance and availability objectives for the local-grade portio
42、n at each end of an ISDN connection at a bit rate below the primary rate utilizing digital radio-relay systems“. ETSI 9 ETSI EN 301 179 V1.2.1 (2001-02) i181 i191 i221 i231 i241 i251 i261 i271 i281 i291 i301 i311 i321 i331 ETSI ETS 300 324 (all parts): “V interfaces at the digital Local Exchange (LE
43、); V5.1 interface for the support of Access Networks (AN)“. ETSI ETS 300 347 (all parts): “V interfaces at the digital Local Exchange (LE); V5.2 interface for the support of Access Networks (AN)“. ITU-R Recommendation F. 1098-1 (1995): “Radio-frequency channel arrangements for radio-relay systems in
44、 the 1 900 - 2 300 MHz band“. 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.131 (1996): “Control of talker echo“. IEC 60169-1: “Radio-frequency connectors - Part 1: General requirements and measuring met
45、hods“. IEC 60339-1: “General purpose rigid coaxial transmission lines and their associated flange connectors - Part 1: General requirements and measuring methods“. IEC 60339-2: “General purpose rigid coaxial transmission lines and their associated flange connectors - Part 2: Detail specifications“ E
46、TSI TR 101 274: “Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Point-to-multipoint DRRS in the access network: Overview of different access techniques“. ITU-R Recommendation F. 1189-1 (1997): “Error performance objectives for constant bit rate digital paths at or above the
47、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-R Recommendation F.557-4 (1997): “Availability objective for radio-relay systems over a hypothetical reference circuit and a hypothetical reference
48、digital path“. ITU-T Recommendation G.827 (1996): “Availability parameters and objectives for path elements of international constant bit-rate digital paths at or above the primary rate“. ISO/IEC 8802-3 (1996): “Information technology - Telecommunications and information exchange between systems - L
49、ocal and metropolitan area networks - Specific requirements - Par 3: Carrier sense multiple access with collision detection (CSMAKD) access method and physical layer specifications“. CEPT/ERC/Recommendation 74-01: “Spurious emissions“. ITU-T Recommendation G.703 (1998): “Physical/electrical characteristics of hierarchic digital interfaces“. ITU-T Recommendations X-series: “Data networks and open system communications“. ETSI 10 ETSI EN 301 179 V1.2.1 (2001-02) 3 3.1 Definitions, symbols and abbreviations Def i n it ions For the purposes of the present
