1、 ETSI TR 102 681 V1.1.1 (2009-06)Technical Report Reconfigurable Radio Systems (RRS);Radio Base Station (RBS) Software Defined Radio (SDR)status, implementations and costs aspects,including future possibilitiesETSI ETSI TR 102 681 V1.1.1 (2009-06) 2Reference DTR/RRS-02003 Keywords air interface, bas
2、e station, configuration 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 notice Individual copies of t
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5、is 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 be reproduced except as aut
6、horized by written permission. The 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 t
7、he benefit of its Members. 3GPPTM is 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 M
8、arks registered and owned by the GSM Association. ETSI ETSI TR 102 681 V1.1.1 (2009-06) 3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Definitions and abbreviations . 6g33.1 Definitions
9、6g33.2 Abbreviations . 6g34 RRS RBS requirements 7g34.1 Re-configurability requirements from use cases 7g34.1.1 Generic requirements for reconfigurable RBS 7g34.1.2 Potential additional requirements for Femto/home-RBS 8g34.2 Stakeholder requirements . 8g34.2.1 Operator requirements 8g34.2.2 OEM requ
10、irements 10g34.3 Power efficiency and energy consumption . 10g35 Architectures for current RBS 10g35.1 Basic RBS architecture . 10g35.2 Re-configurable radio architecture examples . 11g35.2.1 Example architecture from E2R and E3 projects 11g35.2.2 Re-configurable architecture from RRS for UE 14g35.2
11、.3 SDR Forum architectures 15g35.3 Existing RBS interfaces 15g35.3.1 CPRI . 15g35.3.2 OBSAI 15g35.3.3 Other interfaces . 16g36 Re-configurable architectures . 16g36.1 Configuration control . 17g36.2 S/W management . 17g36.3 Operations and maintenance. 18g36.4 Backhaul management . 18g36.5 Spectrum m
12、anagement . 18g36.6 Multi-radio control . 18g36.7 Antenna management . 18g36.8 Power management 18g36.9 Mobility management . 19g36.10 Radio resource management. 19g37 Technology development . 19g38 Energy consumption aspect of re-configurability 20g39 Recommendations 22g3History 24g3ETSI ETSI TR 10
13、2 681 V1.1.1 (2009-06) 4Intellectual 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 000 314
14、: “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 (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, n
15、o 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 may become, essential to the present document. Foreword This Technical
16、 Report (TR) has been produced by ETSI Technical Committee Reconfigurable Radio Systems (RRS). Introduction The present document provides the results of a feasibility study carried out under the ETSI TC on reconfigurable radio systems (RRS). The target of the study was to investigate the need for st
17、andardization within the cellular radio base station to address the requirements resulting from on-situ reconfiguration of future RBS. The study addresses current radio base station architectures, the possibilities provided by software radio architectures and the requirements of future RBS. The stud
18、y considers also the impact of re-configurability on the total life cycle energy consumption and the environmental impact of radio base stations. ETSI ETSI TR 102 681 V1.1.1 (2009-06) 51 Scope The scope of the present document is to investigate and assess possible architectures, related qualities an
19、d corresponding costs of reconfigurable radio base stations (RBS). It covers public radio systems working on licensed bands (including GSM, WCDMA, LTE, WiMax and similar). The present document will include expected future technology and cost developments of these architectures. Definition of key pos
20、sible requirements for SDR applications in RBS, the impact on RBS architecture, network management and equipment certification. It covers reconfigurable RBS on a generic level independent of power classes defined in 3GPP. 2 References References are either specific (identified by date of publication
21、 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 in the following cases: - if it is accepted that it will be possible to use all future cha
22、nges 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 found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause w
23、ere 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. For dated references, only the edition cited applies. For non-specific references, the lates
24、t 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 they assist the user with regard to a particular subject area. For non-specific references,
25、the latest version of the referenced document (including any amendments) applies. i.1 White Paper of the European Project IST-E2R II (June 2007): “End-to-End Reconfiguration Management and Control System Architecture“, Zachos Boufidis, Eleni Patouni, Nancy Alonistioti. i.2 IST-E2R II Contribution to
26、 ETSI Workshop (February 2007): “End-to-End Reconfigurability (E2R II) Management and Control of Adaptive Communications Systems“, Didier Bourse, Markus Muck. NOTE: Available at http:/www.etsi.org/website/document/Workshop/SoftwareDefinedRadio/SDRworkshop1-1DidierBourse.pdf. ETSI ETSI TR 102 681 V1.
27、1.1 (2009-06) 6i.3 ICT Summit (2006): “ER SDR Equipments : towards Proof-of-Concept and Standardization“, E. Nicollet, Ulf Lcking, Siegfried Walter, Bjrn Mennenga, Laurent Alimi. NOTE: Available at http:/www.vodafone- i.4 ETSI TR 102 680: “Reconfigurable Radio Systems (RRS); SDR Reference Architectu
28、re for Mobile Device“. i.5 SDRF-01-P-0006-V2.0.0: “Base Station System Structure“. NOTE: Available at http:/www.sdrforum.org/pages/documentLibrary/documents/SDRF-01-P-0006-V2_0_0_BaseStation_Systems.pdf. i.6 ETSI TR 102 530: “Environmental Engineering (EE); The reduction of energy consumption in tel
29、ecommunications equipment and related infrastructure“. i.7 Life cycle analysis of communication system, Jens Malmodin, Green Telco 2009. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: radio application: software ap
30、plication executing in software defined radio equipment NOTE Radio application is typically designed to use certain radio frequency band(s) and it includes agreed schemes for multiple access, modulation, channel and data coding as well as control protocols for all radio layers needed to maintain use
31、r data links between adjacent radio equipments, which run the same radio application. radio equipment: equipment using radio technology radio technology: technology for wireless transmission and/or reception of electromagnetic radiation for information transfer radio system: system, which consists o
32、f a number of radio equipments using at least one common radio technology reconfigurable radio equipment: radio equipment supporting reconfigurable radio technology reconfigurable radio system: radio system using reconfigurable radio technology reconfigurable radio technology: radio technology allow
33、ing the modification of modulation, frequency or power by S/W, possibly with extensions for cognitive radio NOTE: Re-configurability includes the typical understanding of SDR like the ability to change RAT (Re-configurable within 3GPP standards like EDGE/ WCDMA/ LTE), re-configurability between all
34、standards, capacity upgrades to match future needs and mixed or flexible spectrum (single or multi-band) usage. software defined radio equipment: radio equipment supporting SDR technology software defined radio system: radio system using SDR technology 3.2 Abbreviations For the purposes of the prese
35、nt document, the following abbreviations apply: BB BaseBand CAPEX CAPital EXpenditure CCM Configuration Control Module ETSI ETSI TR 102 681 V1.1.1 (2009-06) 7CEM Configurable Execution Modules CMM Configuration Management Module CPRI Common Public Radio Interface CR Cognitive Radio EOL End Of LifeGS
36、M Global System for Mobile communications HSPA High Speed Packet Access IP Intellectual Property IP Internet Protocol (as in TCP/IP) JEDEC Joint Electron Device Engineering Council NOTE: JEDEC Solid State Technology Association. LTE Long Term Evolution MEMS Micro Electro-Mechanical Systems MIMO Mult
37、iple Input Multiple Output MURI MUlti-Radio access interface OBSAI Open Base Station Architecture Initiative OPEX OPerational EXpenditure PCle Peripheral Component interconnect express RAT Radio Access Technology RBS Radio Base Station REC Radio Equipment Control RF Radio Frequency RPI Radio Program
38、ming Interface RRFI Reconfigurable RF Interface RRS Reconfigurable Radio System RX Receiver SCA Service Component Architecture SDR Software Defined Radio SON Self Organizing Network S-RMP Self-ware Reconfiguration Management and control Plane TCP Transport Control Protocol TM Trade Mark TX Transmitt
39、erURAI Unified Radio Application Interface WCDMA Wideband Code Division Multiple Access 4 RRS RBS requirements Re-configurability requirements are partly different for user equipment and RBS. In clause 4.1 we list general requirements based on different use cases. In clause 4.2 different requirement
40、s based on telecom operator needs and telecom infrastructure equipment manufacturers are listed. 4.1 Re-configurability requirements from use cases 4.1.1 Generic requirements for reconfigurable RBS Transition from one standard to a new (example GSM= WCDMA, WCDMA=LTE, etc.). Multi-standard use, frequ
41、ency re-farming. Spectrum trading. Secondary spectrum usage. Dynamic capacity optimization depending on load (energy saving). Network planning and adaptation, antenna tuning. ETSI ETSI TR 102 681 V1.1.1 (2009-06) 8 Backhaul reconfiguration for flat architecture. These use cases above require the re-
42、configurability of: a) Modulation and BW. b) Frequency allocation (existing bands and future bands, cognitive radio). c) Dynamic spectrum allocation. d) Multi-standard operation. e) Power levels, capacity, efficiency. f) FDD/TDD operation change. g) Network architecture modifications. 4.1.2 Potentia
43、l additional requirements for Femto/home-RBS It is expected that there will be a future market for reconfigurable Mobile Devices that offer the possibility to either operate as a standard Mobile Device entity providing voice/data service access to end-users and/or as a Femto-Base-Station (Femto-BS).
44、 In order to enable an efficient implementation, such “Dual Mode“ devices require the following: The Femto-BS mode of the corresponding “Dual Mode“ device should build on a standard architecture typically applied for Reconfigurable Mobile Devices, for example such as it is defined in TR 102 680 i.4.
45、 Suitable extensions to such available architectures need to be defined. The corresponding device is expected to build on reconfigurable hardware, typically exploiting SDR principles. 4.2 Stakeholder requirements The following requirements are collected from the needs of current stakeholders. The re
46、quirements are separated according to the different stakeholders. A requirement is mentioned in multiple sections if it applies for several stake holders. 4.2.1 Operator requirements The development of different systems which coexist temporally and geographically requires to manage at the same time
47、and in the same area, two or more systems in order to adapt the network to the characteristics of the traffic and optimize the resource usage. Typically, said problem rises for an operator who has already an installed network and wants to add a new network related to a new generation system (e.g. to
48、 add an LTE network to a 2G-3G network already deployed). Moreover, the operator wants to be able to manage dynamically the hardware resources dedicated to the existing system and to the new generation system, according to the traffic variation that insists on the cells of a certain area. Considerin
49、g a cell set in a certain area, it is possible that the traffic of different services on a specified system (or different systems), changes from one area to the other according to the day period. Moreover it could happen that some cells may be congested (high call blocking percentages) in some particular area while surrounding cells are less loaded or characterized by low blocking percentages. In addition, in case of deployment of two or more RATs in the area, the tr
