1、 ETSI EN 301 126-2-3 V1.2.1 (2004-11)European Standard (Telecommunications series) Fixed Radio Systems;Conformance testing;Part 2-3: Point-to-Multipoint equipment;Test procedures for TDMA systemsETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 2 Reference REN/TM-04154 Keywords DRRS, FWA, multipoint, radio,
2、 RLL, SDH, testing, transmission, architecture, TDMA ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important n
3、otice 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 Porta
4、ble 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 http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may
6、 be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2004. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of
7、its Members. TIPHONTMand 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. ETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 3 Contents Intellect
8、ual Property Rights4 Foreword.4 1 Scope 6 2 References 6 3 Definitions, symbols and abbreviations .7 3.1 Definitions7 3.2 Symbols7 3.3 Abbreviations .7 4 General characteristics .7 4.1 Equipment configuration8 4.1.1 System configuration 9 4.2 Transmitter characteristics10 4.2.1 Maximum RF output pow
9、er10 4.2.2 Minimum RF output power (if applicable).11 4.2.3 Automatic Transmit Power Control (ATPC)11 4.2.4 Remote Transmit Power Control (RTPC).12 4.2.5 Frequency accuracy 12 4.2.6 RF spectrum mask 12 4.2.7 Remote Frequency Control.13 4.2.8 Spectral lines at the symbol rate .13 4.2.9 Spurious emiss
10、ions (External) 14 4.3 Receiver characteristics15 4.3.1 Input level range (if applicable)15 4.3.2 Spurious emissions .16 4.4 System Characteristics .16 4.4.1 Dynamic level range .16 4.4.2 BER as a function of receiver input signal level RSL 17 4.4.3 Equipment Background BER17 4.4.4 Interference sens
11、itivity18 4.4.4.1 Co-channel Interference Sensitivity 18 4.4.4.2 Adjacent RF-Channel Interference Sensitivity20 4.4.4.3 CW Spurious Interference.21 History 23 ETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may
12、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 sta
13、ndards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 o
14、ther IPRs not referenced in ETSI SR 000 314 (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). Th
15、e present document is part 2-3 of a multi-part deliverable covering the Fixed Radio Systems; Conformance testing, as identified below: Part 1: “Point-to-Point equipment; Definitions, general requirements and test procedures“; Part 2-1: “Point-to-Multipoint equipment; Definitions and general requirem
16、ents“; Part 2-2: “Point-to-Multipoint equipment; Test procedures for FDMA systems“; Part 2-3: “Point-to-Multipoint equipment; Test procedures for TDMA systems“; Part 2-4: “Point-to-Multipoint equipment; Test procedures for FH-CDMA systems“; Part 2-5: “Point-to-Multipoint equipment; Test procedures f
17、or DS-CDMA systems“; Part 2-6: “Point-to-Multipoint equipment; Test procedures for Multi Carrier Time Division Multiple Access (MC-TDMA) systems“; Part 3-1: “Point-to-Point antennas; Definitions, general requirements and test procedures“; Part 3-2: “Point-to-Multipoint antennas; Definitions, general
18、 requirements and test procedures“. This part 2-3 of EN 301 126 defines harmonized test methods for the conformity assessment testing of point-to-multipoint fixed radio systems applying time division multiple access method (TDMA). It should be noted that the present document can only be applied in c
19、onjunction with part one. The part 2-1 of EN 301 126 defines the conformity assessment testing requirements (definitions and general requirements) for radio specific parameters required directly by the relevant EN/ETS for point-to-multipoint systems. Annex A of that part one contains the suppliers d
20、eclaration, annex B contains the test report format. It is recommended that where a clarification of a test procedure or an agreed test procedure is required, this should be described on the final page of the test report titled “Additional information supplementary to the test report“. ETSI ETSI EN
21、301 126-2-3 V1.2.1 (2004-11) 5 National transposition dates Date of adoption of this EN: 12 November 2004 Date of latest announcement of this EN (doa): 28 February 2005 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 31 August 2005 Date of withdrawal of any con
22、flicting National Standard (dow): 31 August 2005 ETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 6 1 Scope The present document details standardized test procedures for conformance testing of equipment for Point-to-MultiPoint (P-MP) digital radio relay systems applying time division multiple access method
23、 (TDMA). Optionally, for certain of the system types defined in the present document, other access methods (e.g. Orthogonal Frequency Division Multiple Access (OFDMA) may be used in conjunction with TDMA to provide another dimension of multiple access. Standardized procedures are required in order t
24、o fulfil ECC/DEC/(04)04 1 on the mutual recognition, within CEPT, of the results of conformance tests on equipment carried out in individual CEPT Countries. Furthermore the procedures described in the present document are relevant to be able to fulfil the conformance assessment procedure described i
25、n Chapter II of the Directive 1999/5/EC 3 in order to demonstrate the compliance of the DRRS with the relevant Essential Requirements identified in Article 3.2 of the Directive 1999/5/EC 3. The present document is intended to be applied in conjunction with EN 301 126-2-1 2 and in conjunction with th
26、e individual equipment ENs/ETSs describing TDMA methods and will enable commonality of test results, irrespective of the Supplier or the Notified Body carrying out the test. The conformance tests described in the present document are those related to radio specific parameters required directly by th
27、e relevant radio relay ENs/ETSs. Conformance tests to other boundary EN/ETS (e.g. those for system input/output interfaces and related base band process) are outside the scope of the present document. 2 References The following documents contain provisions which, through reference in this text, cons
28、titute 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 doc
29、uments which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ECC/DEC/(04)04: “ECC Decision of 19 March 2004 on the withdrawal of the ERC Decision (97)10 “ERC Decision of 30 June 1997 on the mutual recognition of conformity assessme
30、nt procedures including marking of radio equipment and radio terminal equipment“. 2 ETSI EN 301 126-2-1: “Fixed Radio Systems; Conformance testing; Part 2-1: Point-to-Multipoint equipment; Definitions and general requirements“. 3 Directive 1999/5/EC of the European Parliament and of the Council of 9
31、 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (R 2) Spectrum Analyser with an accurate frequency reference (recommended two orders of magnitude greater than the allowed limit), internal or external. Test Configuration: Z E A B
32、(C) Modulator Transmitter Transmit RF filter (branching) Atten Freq.counter or Spectrum Analyser. Figure 6: Test configuration for frequency accuracy Test Procedure: The Tx is to be operated in the normal operating modulated condition and frequency measurements conducted on each of the three selecte
33、d frequencies (high, medium, low) through the remote frequency control, if fitted. The measured frequency is to be within the suppliers stated operating range. A power splitter or coupler may be required if the TS requires an RF link from the CRS before it can operate. Using appropriately gated freq
34、uency counter or the spectrum analyser, the CW signal or the carrier breakthrough shall be measured. If adequate measurement stability cannot be achieved by this method, then the supplier shall make available an appropriate method to place the transmitter in a mode that allows the frequency of the c
35、arrier or a pair of sidebands to be measured. NOTE 2: For systems that do not shut down on loss of synchronization, frequency accuracy should also be measured in the non-synchronized condition. 4.2.6 RF spectrum mask RF spectrum mask measurements are to be conducted at the lowest, mid-band and highe
36、st channel of the unit under test. Objective: To verify that the output spectrum is within the specified limits of the relevant EN/ETS. Test Instruments: 1) Spectrum Analyser; 2) Plotter. ETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 13Test Configuration: Z E A B(C) Modulator Transmitter Transmit RF fil
37、ter (branching) Atten Spectrum Analyser and plotter Figure 7: Test configuration for Spectrum Mask Test Procedure: The transmitter output port shall be connected to either a Spectrum Analyser via an attenuator or an artificial load with some means of monitoring the emissions with a Spectrum Analyser
38、. The Spectrum Analyser shall have a variable persistence display or a digital storage facility. When not stated in the relevant EN/ETS, the resolution bandwidth, frequency span, scan time and video filter settings of the Spectrum Analyser are to be set in accordance with the following indications.
39、A power splitter or coupler may be required if the TS requires an RF link from the CRS before it can operate. Table 1: Spectrum Analyser Settings for RF Power Spectrum Measurement for CRS only RF channel spacing (MHz) 20 Centre frequency actual actual Actual Sweep width (MHz) Note 1 Note 1 Note 1 Sc
40、an time auto auto Auto IF bandwidth (kHz) 30 30 100 Video bandwidth (kHz) 0,1 0,3 0,3 See note 2 for TS settings. NOTE 1: 5 channel spacing sweep width 7 channel spacing. NOTE 2: The spectrum analyser settings for RF power Spectrum Measurement for TDMA Terminal Stations (TS) are depending on the bur
41、st duration. For a burst duration of 50 s, the recommended settings are IF bandwidth 30 kHz and video bandwidth 10 kHz. For other pulse durations, the recommended settings are as following: - IF bandwidth 30 kHz 50s/ (pulse duration in s); - Video bandwidth 10 kHz 50s/ (pulse duration in s); - The s
42、upplier has to declare the settings. NOTE 3: For TDMA/OFDMA Terminal Stations (TS), for this test, the TSs should be modulated with the maximum number of sub-carriers supported. The manufacturer shall declare the worst-case configuration and have available supporting evidence. Typically this will in
43、clude the highest and lowest sub-carrier frequencies. With the transmitter modulated by a signal having the characteristics given in the relevant EN/ETS, the transmitter power density, (including the spectral lines at the symbol rate if stated in the EN/ETS), shall be measured by the Spectrum Analys
44、er and recorded. Where possible, transmitter spectral power density plots at the lowest, mid-band and highest frequencies of the suppliers declared operating range are to be recorded. 4.2.7 Remote Frequency Control Remote frequency control is an optional feature. However, when fitted the function sh
45、all be tested during the frequency accuracy test. If necessary, repeat test as in clause 4.2.5 with frequency settings controlled using the remote frequency control option. 4.2.8 Spectral lines at the symbol rate The test for spectral lines at the symbol rate is performed at the same time as the RF
46、spectrum mask, see clause 4.2.6 if applicable to the standard. ETSI ETSI EN 301 126-2-3 V1.2.1 (2004-11) 144.2.9 Spurious emissions (External) Objective: To verify that any spurious emissions generated by the transmitter, (including the spectral lines at the symbol rate if stated in the EN/ETS), are
47、 within the limits quoted in the relevant EN/ETS. Spurious emissions are emissions outside the bandwidth necessary to transfer the input data at the transmitter to the receiver of which level may be reduced without affecting the corresponding transfer of information. Spurious emissions include harmo
48、nic emissions, parasitic emissions, intermodulation products and frequency conversion products. Test Instruments: 1) Spectrum Analyser; 2) Spectrum Analyser Mixer Units - as required; 3) Plotter. Test Configuration: Z E A B Modulator Transmitter Transmit RF Filter (Branching) Atten Spectrum Analyser
49、 Plotter Notch Filter W/G Trans. Mix er Figure 8: Test Configuration for conducted antenna port spurious emissions Test Procedure: The transmitter output port shall be connected to either a Spectrum Analyser via a suitable attenuator and/or notch filter to limit the power into the front end of the Analyser. In some cases, where the upper frequency limit exceeds the basic operating range of the Analyser, suitable waveguide transitions and mixer will be required. It is important that the circuit between the transmitter and the input to t
