1、 ETSI TR 102 651 V1.1.1 (2009-06)Technical Report Broadband Radio Access Networks (BRAN);5 GHz high performance RLAN;Guide to the implementation ofDynamic Frequency Selection (DFS)ETSI ETSI TR 102 651 V1.1.1 (2009-06) 2Reference DTR/BRAN-00200015 Keywords access, broadband, radio, testing ETSI 650 R
2、oute 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 notice Individual copies of the present document can be download
3、ed 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 Portable Document Format (PDF). In case of dispute, the reference sh
4、all 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 on the current status of this and other ETSI documents is avai
5、lable 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 be reproduced except as authorized by written permission. The
6、copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2009. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM i
7、s a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GS
8、M Association. ETSI ETSI TR 102 651 V1.1.1 (2009-06) 3Contents Intellectual Property Rights 5g3Foreword . 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 6g33 Definitions, symbols and abbreviations . 8g33.1 Definitions 8g33.2 Symbols 8g33.3 Abbreviations . 8g34
9、 Purpose of the present document 9g35 The importance of Spectrum Sharing . 9g36 A short history of “DFS“ 9g36.1 Europe Spawns the Idea . 9g36.2 ITU-R Recommendation M.1652 . 10g36.3 WRC-03 - ITU-R Resolution 229 10g36.4 DFS developments outside Europe: the example of the US . 10g37 Regulatory Requir
10、ements . 11g37.1 Europe 11g37.1.1 Regulation . 11g37.1.1.1 ECC Decision 11g37.1.1.2 EC Decision 11g37.1.2 R 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 (htt
11、p:/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 other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or ma
12、y become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI Technical Committee Broadband Radio Access Networks (BRAN). The basis for this work was a document submitted by the Wi-Fi Alliance Regulatory Task Group as an Associate Member of ETSI. The init
13、ial goal of this coordination was to advance global 5 GHz spectrum access through harmonization of RLAN regulations. ETSI ETSI TR 102 651 V1.1.1 (2009-06) 61 Scope Due to the scarcity of radio frequency spectrum, many radio systems have to share spectrum with other radio systems - in one form or ano
14、ther; 5 GHz Wireless Access Systems including Radio Local Area Networks (WAS/RLANs), also known as Wireless LANs, radio LANs, or RLANs, are no exception. Wireless LANs are allowed to operate in the 5 GHz bands which are also used by many radar systems. The present document is intended to help the de
15、signers of Wireless LANs that operate in the 5 GHz frequencies understand the requirements for radar detection and avoidance. The performance requirements of such a mechanism, also known as DFS or Dynamic Frequency Selection, is further described in EN 301 893. NOTE: It is advised to download the la
16、test version of EN 301 893. The present document deals only with the regulatory requirements and the philosophy under which they were issued. It does not provide design rules or example implementations. By avoiding such “blueprint“ material, innovation among Wireless LAN designers is maintained and
17、encouraged. 2 References 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. Non-specific reference may be made only to a complete document or a part thereof and only
18、in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be foun
19、d at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. Fo
20、r dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. Not applicable. 2.2 Informative references The following referenced documents are not essential to the use of the present document but th
21、ey assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications
22、terminal equipment and the mutual recognition of their conformity (R 5 GHz high performance RLAN; Harmonized EN covering essential requirements of article 3.2 of the R 5 GHz high performance RLAN; Harmonized EN covering essential requirements of article 3.2 of the R 5 GHz high performance RLAN; Harm
23、onized EN covering essential requirements of article 3.2 of the R 5 GHz high performance RLAN; Harmonized EN covering essential requirements of article 3.2 of the R Test Report Template for testing to EN 301 893 (V1.3.1) (R HIPERLAN Type 2; Physical (PHY) layer“. i.8 ITU-R Recommendation M.1652: “Dy
24、namic frequency selection (DFS) in wireless access systems including radio local area networks for the purpose of protecting the radiodetermination service in the 5 GHz band“. i.9 ITU-R Recommendation M.1638: “Characteristics of and protection criteria for sharing studies for radiolocation, aeronaut
25、ical radionavigation and meteorological radars operating in the frequency bands between 5 250 and 5 850 MHz“. i.10 ERC Decision (99)23 of 29 November 1999 on the harmonised frequency bands to be designated for the introduction of High Performance Radio Local Area Networks (HIPERLANs). i.11 ECC Decis
26、ion(04)08 of 9 July 2004 on the harmonised use of the 5 GHz frequency bands for the implementation of Wireless Access Systems including Radio Local Area Networks (WAS/RLANs). i.12 ITU-R Resolution 229: “Use of the bands 5 150-5 250 MHz, 5 250-5 350 MHz and 5 470-5 725 MHz by the mobile service for t
27、he implementation of wireless access systems including radio local area networks“. i.13 Memorandum Opinion and Order FCC 06-96: “Revision of Parts 2 and 15 of the Commissions Rules to Permit Unlicensed National Information Infrastructure (U-NII) devices in the 5 GHz band“. i.14 Report and Order FCC
28、03-287: “In the matter of Revision of Parts 2 and 15 of the Commissions Rules to Permit Unlicensed National Information Infrastructure (U-NII) devices in the 5 GHz band“. i.15 Commission Decision 2005/513/EC of 11 July 2005 on the harmonised use of radio spectrum in the 5 GHz frequency band for the
29、implementation of wireless access systems including radio local area networks (WAS/RLANs). i.16 Commission Decision 2007/90/EC of 12 February 2007 amending Decision 2005/513/EC on the harmonised use of radio spectrum in the 5 GHz frequency band for the implementation of Wireless Access Systems inclu
30、ding Radio Local Area Networks (WAS/RLANs). i.17 ITU-R Report M.2115: “Testing procedures for implementation of dynamic frequency selection“. i.18 NPRM FCC 03-110: “In the Matter of Revision of Parts 2 and 15 of the Commissions Rules to Permit Unlicensed National Information Infrastructure (U NII) d
31、evices in the 5 GHz band“. i.19 FCC Part 15.407: “Chapter I - Federal Communications Commission; Part 15 - Radio Frequency Devices - General technical requirements“. ETSI ETSI TR 102 651 V1.1.1 (2009-06) 8i.20 IEEE 802.11: “IEEE Standard for Information Technology - Telecommunications and informatio
32、n exchange between systems - Local and Metropolitan networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications“. i.21 IEEE 802.11a-1999 ISO/IEC 8802-11:1999/Amd 1:2000(E) (Supplement to IEEE Std 802.11, 1999 Edition): “Part 11: Wirele
33、ss LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: High-speed Physical Layer in the 5 GHz Band“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purpose of the present document, the terms and definitions given in EN 301 893 and the following apply: HIPERLAN
34、2: High Performance Radio Local Area Network type 2 as described in e.g. TS 101 475 i.7 3.2 Symbols For the purposes of the present document, the following symbols apply: dBi antenna gain in decibels relative to an isotropic antenna dBm dB relative to 1 milliwatt GHz GigaHertz Hz Hertz kHz kiloHertz
35、 MHz MegaHertz 3.3 Abbreviations For the purposes of the present document, the abbreviations given in EN 301 893 and the following apply: DFS Dynamic Frequency Selection EIRP Equivalent Isotropically Radiated Power FCC Federal Communications CommissionFH Frequency Hopping HIPERLAN High Performance R
36、adio Local Area Network ITU International Telecommunications Union LAN Local Area Network MIMO Multiple-Input and Multiple-Output NTIA National Telecommunications and Information Administration pps pulses per second PRF Pulse Repetition Frequency R including military and weather radars. 6.4 DFS deve
37、lopments outside Europe: the example of the US In 2000, as the RLAN industry in the US was preparing to enter the 5 GHz spectrum market with products designed to the IEEE 802.11a i.21 standard, manufacturers with worldwide distribution were concerned that Europe would restrict this band to HIPERLAN
38、(High Performance Radio LAN) products as specified in ERC Decision (99)23 i.10. HIPERLAN was a specific RLAN technology developed by ETSI. The ERC Decision (99)23 i.10 mandated two mechanisms to protect radars and other primary users of this band: DFS (Dynamic Frequency Selection) and TPC (Transmit
39、Power Control). As a result, a project, P802.11 TGh, was started to add these mechanisms in the IEEE 802.11 i.20 standard, with the assumption that if these additional regulatory requirements were met, global adoption of IEEE 802.11a-1999 i.21 would be possible. At that time the 5 GHz band for RLANs
40、 in the US was restricted to the 5 150 MHz to 5 250 MHz, 5 250 MHz to 5 350 MHz and 5 725 MHz to 5 825 MHz bands, but planning was already in the works for the 2003 meeting of the World Radiocommunication Conference, to add the 5 470 MHz to 5 725 MHz band. This made DFS even more important for the U
41、S market. Over the course of the next three years, the FCC, with the help of the wireless LAN industry and the NTIA, developed the DFS rules for the US. The spectrum used within US Federal agencies is administered by an Executive Branch organization known as the NTIA (National Telecommunications and
42、 Information Administration). Spectrum allocated for use by US commercial and private citizens is administered by the FCC (Federal Communications Commission). When considering opening the 5 GHz band for use by wireless LANs, the NTIA expressed a strong desire that products entering the new band woul
43、d adequately protect US military radars. This requirement was the basis of the US position at the WRC-03 which developed the first DFS requirements document - ITU-R Recommendation M.1652 i.8. During the period 2003 to 2006, the FCC with the help of the wireless LAN industry and the NTIA, developed t
44、he DFS rules for the US. Since ETSI BRAN developed the first 5 GHz Harmonized Standard (EN 301 893 (V1.2.3) i.2) in 2003, the DFS test specification included in this standard became the basis for the development of the FCC DFS test specification and other test specifications in other countries. ETSI
45、 ETSI TR 102 651 V1.1.1 (2009-06) 11In the US, the FCC, NTIA and the wireless LAN industry collaborated to develop an extended set of DFS equipment test specifications that would ensure compliant equipment would provide protection of radar systems not previously addressed by the ITU-R Recommendation
46、 M.1652 i.8. The new requirements and the related radio certification process were released in July of 2006 (FCC-06-96 i.13) and are available on http:/fjallfoss.fcc.gov/edocs_public/attachmatch/FCC-06-96A1.doc. It can be noted that similar extensions on the radar detection requirements were incorpo
47、rated by ETSI BRAN into EN 301 893(V1.3.1) i.3. EN 301 893 is the European Harmonized Standard for 5 GHz high performance RLANs. 7 Regulatory Requirements In addition to the world wide regulatory requirements agreed by the ITU-R (see clause 6), various national and regional regulatory regimes were d
48、eveloped and are further described in this clause. 7.1 Europe 7.1.1 Regulation 7.1.1.1 ECC Decision As given already in clause 6.1, after the WRC-03, the CEPT (48 member countries) had revised the existing ERC Decision (99)23 i.10 resulting in the “ECC Decision (04)08 i.11 on the harmonized use of t
49、he 5 GHz frequency bands for the implementation of Wireless Access Systems including Radio Local Area Networks“. ECC decisions are implemented on a voluntary basis and as such only have a legal status in those countries where administrations have adopted them into their national regulations. 7.1.1.2 EC Decision By mid of 2005, the European Commission published Commission Decision 2005/513/EC i.15 requiring all EU member states (27 member states) to open the 5 GHz bands for the implementation of Wireless Acces
