1、ETSI EN 301 213-4 1.1.1 (2001-08) European Standard (Telecommunications series) 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 4: Direct Sequence Code Division Mu
2、ltiple Access (DS-CDMA) methods 2 ETSI EN 301 213-4V1.1.1 (2001-08) Reference DEN/TM-04103 Keywords CDMA, DRRS, multipoint, 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 O0017 - NAF 742 C Asso
3、ciation but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: htt!x/w.ettlsi. orq The present document may be made available in more than one electronic version or in print. In any case of existing o
4、r 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 s
5、hould 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 If you find errors in the present document, send your comment to: Copyright Notification No part may be reproduced except as authorized
6、by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 301 213-4V1.1.1 (2001-08) Contents Intellectual Property Rights 5 Foreword 5 1 2 3 3.1 3.2 3.3 4 4.1 4.2
7、 4.2.1 4.2.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5 5.1 5.1.1 5.2 5.3 5.4 5.5 5.5.1 5.5.2 5.5.3 5.5.4 5.5.4.1 5.5.4.2 5.5.5 5.5.6 5.5.7 5.6 5.6.1 5.6.2 5.6.3 5.6.4 5.7 5.7.1 5.7.2 5.7.3 5.7.4 5.7.4.1 5.7.4.2 5.7.4.3 5.7.5 Scope 6 References 6 Definitions, symbols and abbreviations . 7 Definitions 7 Symbols 7
8、 Abbreviations 7 General characteristics 8 General System Architecture . 8 Channel Plan 8 Channel Arrangement 8 Compatibility requirements 8 Environmental Conditions . 8 Power Supply 8 Electroniagnetic compatibility . 8 TMN interfaces . 9 Synchronization of interface bit rates . 9 Branching/feeder/a
9、ntenna requirements . 9 System Parameters 9 Maximum System Loading (MSL) . 9 Transparency . 10 Voice Coding Methods 10 Transmitter Characteristics 10 Transmitter Output Power 10 Transmitter Nominal Power . 10 Transmit Power and Frequency Control 10 RF Spectrum Mask 10 RF Spectrum density mask (all s
10、tations) 10 Discrete CW components exceeding the spectrum density mask limit (all stations) 11 Tx Local Oscillator Frequency Arrangements . 12 Spurious Emissions (external) 12 RF Local Oscillator Frequency Arrangements 12 Spurious Emissions 12 Receiver IF 12 Input level range (dynamic range) 13 Syst
11、em Performance 13 Dynamic Level Range 13 BER as a function of RSL 13 Equipment Residual BER . 16 Interference sensitivity . 16 Co-channel interference 16 Adjacent Channel Interference 17 CW Interference . 17 Frequency bands and channel arrangements . 8 System Capacity 9 Round Trip Delay 10 Radio Fre
12、quency Tolerance 12 Receiver Characteristics 12 Distortion Sensitivity . 17 6 Annex A (informative): Types of interfaces at the subscriber equipment and the network exchange 17 Bibliography . 18 ETSI 4 ETSI EN 301 213-4V1.1.1 (2001-08) History . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 ETSI 5 ETSI EN 301 213-4V1.1.1 (2001-08) Intellectu
14、al 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 O00 3 14: “Intellectual Property Rights (
15、IPRs); Essential, orpotentially Essential, IPRs notjed to ETSI in respect OfETSIstandards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (htt:/!wvw.etsi ordj r). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been c
16、arried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR O00 3 14 (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 prod
17、uced by ETSI Technical Committee Transmission and Multiplexing (TM). The present document is part 4 of a multi-part deliverable covering the 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,
18、as identified below: Part 1: “Basic parameters“; Part 2: “Frequency Division Multiple Access (FDMA) methods“; Part 3 : Part 4: Part 5: “Time Division Multiple Access (TDMA) methods“; “Direct Sequence Code Division Multiple Access (DS CDMA) methods“; “Multi-Carrier Time Division Multiple Access (MC-T
19、DMA) methods“. Parts 2 2 to 5 4 are intended to be used in conjunction with part 1, describing the basic parameters common to all access methods. A basic description of the different access methods and a comparison among them are provided in TR 101 274 5. The present document specifies the minimum r
20、equirements for system parameters of Direct Sequence - Code Division Multiple Access (DS-CDMA) Point-to-Multipoint (P-MP) Radio Systems in terrestrial fixed services operating in the band 24,5 GHz to 29,5 GHz. Only sections specific to DS-CDMA are described in respect to the paragraphs stated in Par
21、t 1 of the present document. The DS-CDMA Central Radio Station (CRS) transmits simultaneously and continuously to all active Terminal Stations (TS) within its coverage area information utilizing a specific set of codes allocated to each active Terminal Station. The terminal stations use the same, or
22、 a different, set of codes when transmitting to the CRS. Transmissions from CRS to TS are distinguished from transmissions on the other directions by using different frequency channels (FDD mode) or different times (TDD mode). Repeater stations (RS) may be placed for cell coverage enhancing. Nationa
23、l 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 withdrawal of any conflicting National Standard (dow): 24 August 200 1 30 November 2001 3 1 May 2002 3 1 May
24、 2002 ETSI 6 ETSI EN 301 213-4V1.1.1 (2001-08) 1 Scope The present document (Direct Sequence - Code Division Multiple Access Methods, DS-CDMA) is to be used in conjunction with part 1, describing the basic parameters common to all access methods. The present document specifies the minimum requiremen
25、ts for system parameters of Direct Sequence - Code Division Multiple Access (CDMA) Point-to-Multipoint (P-MP) Radio Systems in the terrestrial fixed services operating in the band 24,5 GHz to 29,5 GHz. Only sections specific to CDMA are described in respect to the paragraphs stated in EN 301 213-1 i
26、. Point-to-Multipoint Radio Relay Systems (P-MP) may use different access methods. As some technical parameters are different for the various access methods, the standard is divided in five parts. A basic description of the different access methods and a comparison among them is provided in TR 101 2
27、74 5. 2 Re fe re nces 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 andor edition number or version number) or non-specific. For a specific reference,
28、subsequent revisions do not apply. For a non-specific reference, the latest version applies. il ETSI EN 30 1 2 13-1 : “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; P
29、art 1: Basic parameters“. ETSI EN 30 1 2 13-2: “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“. ETSI EN 30 1
30、 2 13-3: “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“. ETSI EN 30 1 2 13-5: “Fixed Radio Systems; Point-to-mul
31、tipoint 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“. ETSI TR 101 274: “Transmission and Multiplexing (TM); Digital Radio Relay Systems
32、 (DRRS); Point-to-multipoint DRRS in the access network Overview of different access techniques“. Pl 31 41 51 61 Void. 71 ETSI EG 202 306 (V1.2.1): “Transmission and Multiplexing (TM); Access networks for residential customers“. ETSI 7 ETSI EN 301 213-4V1.1.1 (2001-08) 3 Definitions, symbols and abb
33、reviations See EN 301 213-1 i, clause 3. 3.1 Defi nit ions For the purposes of the present document, the terms and definitions given in clause 3 of EN 30 1 2 13- 1 i and the following apply. chip: unit of modulation used in Direct Sequence Spread Spectrum (DSSS) modulation chip rate: number of chips
34、 per second, e.g. Mchiph chip sequence: sequence of chips with defined length and chip polarities direct Sequence Spread Spectrum: scheme where the data to be transmitted is combined with a fixed code sequence (chip sequence) NOTE: This can be used to modulate a carrier single DS-CDMA signal: single
35、 traffic channel and any associated signalling and synchronization overhead system loading: number of simultaneous traffic channels at 64 kbit/s in a given radio channel maximum system loading: number of simultaneous 64 kbit/s traffic channels in a given radio channel for the class of operation decl
36、ared by the manufacturer round trip delay: sum of the delays between Baseband interface reference points F (SNI) to G (UNI) and G (UNI) to F (SNI) in figure 1 of EN 301 213-1, including any repeaters if appropriate 3.2 Symbols For the purposes of the present document, the following symbols apply: dB
37、 decibel dBm kbith kilobits per second GHz Gigahertz Mbith Megabits per second MHz Megahertz decibels relative to one milliwatt 3.3 Ab brevi at ions For the purposes of the present document, the following abbreviations apply: ATPC BER BW CRS cs CSmin cw DSSS DS-CDMA EN FDD FDMA ISDN MSL MC-TDMA Auto
38、matic Transmission Power Control Bit Error Ratio Bandwidth Central Radio Station Central Station minimum practical Channel Separation (for a given radio-frequency channel arrangement) Continuous Wave Direct Sequence Spread Spectrum Direct Sequence Code Division Multiple Access European Norm Frequenc
39、y Division Duplex Frequency Division Multiple Access Integrated Services Digital Network Multiple Carrier Time Division Multiple Access Maximum System Loading ETSI 8 ETSI EN 301 213-4V1.1.1 (2001-08) P-MP RBER RF RS SNI TDD TDMA TMN TS UNI Point-to-Multipoint Residual BER Radio Frequency Repeater St
40、ation Service Node Interface (EG 202 306 7) Time Division Duplex Time Division Multiple Access Telecommunication Management Network Terminal Station User Network Interface (EG 202 306 7) 4 Gen era I characteristics 4.1 General System Arch i tect u re See EN 301 213-1 i, clause 4.1. 4.2 Frequency ban
41、ds and channel arrangements 4.2.1 Channel Plan See EN 301 213-1 i, clause 4.2.1. 4.2.2 Channel Arrangement In DS-CDMA systems the required channel spacing is determined by the chip rate. For the purposes of the present document, the following example channel spacings have been defined (see table 1).
42、 Other channel spacings may also be employed. Further channel spacings are available by scaling proportionally all channel-related parameters in the present document. 4.3 Com pati bi I ity requirements See EN 301 213-1 i, clause 4.3. 4.4 E nvi ron m enta I Conditions See EN 301 213-1 i, clause 4.4.
43、4.5 Power Supply See EN 301 213-1 i, clause 4.5. 4.6 Electromagnetic com pati bi li ty See EN 301 213-1 i, clause 4.6. ETSI 9 Channel Spacing + minimum number of simultaneous 64 kbit/s traffic channels ETSI EN 301 213-4V1.1.1 (2001-08) 33 MHz 7 MHz 14 MHz 28 MHz 56MHz 112MHz 20 40 80 160 320 640 4.7
44、 TMN interfaces See EN 301 213-1 i, clause 4.7. 4.8 Synchronization of interface bit rates See EN 301 213-1 i, clause 4.8. 4.9 B ra n c h i n g /f eed e r/a n t e n n a req u i rem e n t s See EN 301 213-1 i, clause 4.9. 5 5.1 System Pa ram et ers System Capacity The system capacity parameter consid
45、ered in the present document is the transmission capacity of the CS, which is the maximal payload bit rate transmitted over the air between a given CS and its associated remote terminal and repeater stations (TSs and RSs). Due to particular features of DS-CDMA, the system capacity is a free design p
46、arameter. However in order to define the performance of the system in the present document a maximum system loading shall be used. The manufacturer shall declare which class the equipment meets. The class will define the number of 64 kbit/s traffic channels that can Co-exist within a single allocate
47、d radio channel with a Bit Error Ratio (BER) lower than or equal to equipment against maximum system loading are given in tables 7 to 12. Systems shall use orthogonal code sequences. Different classes of NOTE: orthogonal code sequences are referred to as “Class A“ in some other DS-CDMA standards to
48、distinguish them from “Class B“ (non-orthogonal or pseudo random chip sequences). The BER for a single traffic channel will degrade as the number of simultaneous traffic channels increases. 5.1 .I Maximum System Loading (MSL) Manufacturers shall declare the MSL for a system. The system performance s
49、hall equal or exceed that given in tables 7 to 12 at the declared MSL class of operation. The minimum number of simultaneous traffic channels is given in table 2. NOTE 1: NOTE 2: The nomenclature used for class of operation in tables 7 to 12 is derived from the declared number of 64 kbit/s users that can be supported under maximum loading conditions. Thus, for example, class “A20“ denotes “MSL of 20 x 64 kbith channels“ with orthogonal code sequences. For systems that do not support exact multiples of 64 kbit/s traffic, the system must s
