SIST EN 301 179 V1.1.1:2003

• Abstract:

  This EN covers the following P-MP applications: fax, voiceband data, telex, data up to 8 Mbit/s. The main field of application of P-MP systems is to provide access to both public and private networks, particularly for remote subscribers. By means of P-MP systems the network service area may be extended to c over both distant and scattered subscriber locations.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.20 - Transmission systems
• ICS: 33.060.30 - Radio relay and fixed satellite communications systems
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 301 179 V1.1.1 (1999-09) - Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint DRRS in the bands within the range 1 GHz to 3 GHz

Overview

SIST EN 301 179 V1.1.1:2003 defines requirements and guidelines for Transmission and Multiplexing (TM), specifically for Digital Radio Relay Systems (DRRS) utilizing Frequency Hopping Code Division Multiple Access (FH-CDMA) in point-to-multipoint (P-MP) configurations. This international standard applies to P-MP DRRS operating in the 1 GHz to 3 GHz frequency range, supporting access to both public and private networks. The primary applications include the extension of telecommunication service areas to reach remote, scattered, or otherwise hard-to-reach subscribers, enabling services such as voice, fax, telex, and data transmissions up to 8 Mbit/s.

Key areas covered include system architecture, radio characteristics, subscriber interfaces, environmental requirements, and compatibility with other telecommunications standards.

Key Topics

• Point-to-Multipoint DRRS Architecture

  • Multi-user connectivity for remote and dispersed locations
  • Integration with public and private networks via standardized interfaces

• FH-CDMA Access Method

  • Use of frequency hopping and code division for efficient spectrum utilization
  • Support for slow frequency hopping with adjustable hopping periods

• Frequency Bands and Channel Arrangements

  • Applicable to bands at 1.5 GHz, 2.2 GHz, 2.4 GHz, and 2.6 GHz
  • Spectrum allocation and channel planning in accordance with CEPT and ITU-R recommendations

• Supported Applications

  • Voice, fax, voiceband data, telex, ISDN, and internet access
  • Transparent transmission for analogue and digital subscriber equipment

• System Characteristics

  • Transmission error performance and low round trip delay requirements
  • Options for various standardized voice coding techniques to optimize bandwidth usage

• Subscriber Equipment and Interfaces

  • Compliance with ETSI, ITU, and ISO/IEC interface standards for seamless network integration
  • Support for both analogue and digital interfaces, including Ethernet, ISDN, and traditional telephony

• Environmental and Power Requirements

  • Adherence to operational environments as defined in ETSI standards
  • Power supply interfaces compatible with common telecommunications specifications

Applications

SIST EN 301 179 V1.1.1:2003 enables practical solutions in scenarios where extending traditional wired infrastructure is not feasible or cost-effective. Typical applications include:

• Rural and Remote Connectivity
  Rapid deployment of telecommunication services in underserved locations, boosting social and economic inclusion.

• Business and Enterprise Links
  Creation of private network connections for organizations with distributed facilities, supporting secure and reliable data and voice services.

• Temporary Networks
  Fast setup for events, disaster recovery, or construction sites where temporary communications are required.

• Scalable Access Networks
  Expansion of service areas for both public switched telephone networks (PSTN) and private data networks (PDN), serving a few to thousands of users.

By leveraging FH-CDMA and flexible frequency management, these systems offer robust interference rejection, high system capacity, and efficient use of available spectrum.

Related Standards

To ensure interoperability and compliance, several key standards are referenced by SIST EN 301 179 V1.1.1:2003:

• CEPT T/R 13-01: Channel arrangements for fixed services in the 1-3 GHz range
• ITU-R Recommendations F.701-2, F.697-2, F.1098-1: Channel and error performance for digital radio systems
• ETS 300 132 & ETS 300 019: Power supply and environmental conditions for telecom equipment
• ETS 300 012 & ISO/IEC 8802-3 (Ethernet): Digital interfaces for subscriber and network equipment
• ITU-T Recommendations G.711, G.726, G.729: Voice coding standards for digital telephony
• ETS 300 385: Electromagnetic compatibility for radio links

Adherence to these related standards ensures reliable and standardized network performance, equipment interoperability, and regulatory compliance in diverse telecom environments.

Keywords: digital radio relay systems, frequency hopping CDMA, point-to-multipoint, FH-CDMA, telecommunications standard, remote access, rural connectivity, spectrum efficiency, P-MP DRRS, network interfaces.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.OQLTransmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Frequency Hopping Code Division Multiple Access (FH-CDMA); Point-to-multipoint DRRS in the bands within the range 1 GHz to 3 GHz33.060.30Radiorelejni in fiksni satelitski komunikacijski sistemiRadio relay and fixed satellite communications systems33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 301 179 Version 1.1.1SIST EN 301 179 V1.1.1:2003en01-december-2003SIST EN 301 179 V1.1.1:2003SLOVENSKI
STANDARD
ETSIETSI EN 301 179 V1.1.1 (1999-09)2ReferenceDEN/TM-04058 (ax000ico.PDF)KeywordsCDMA, DRRS, multipoint, radio, RLL,transmissionETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail] copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: [e-mail] NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999.All rights reserved.SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)3ContentsIntellectual Property Rights.5Foreword.5Introduction.51Scope.71.1Applications.71.2Frequency bands and channel arrangements.71.3Access method.71.4Compatibility.72References.83Definitions, symbols and abbreviations.103.1Definitions.103.2Symbols.113.3Abbreviations.114General system architecture.124.1Sub-system components.124.2System characteristics.134.2.1Transmission error performance.134.2.2Round trip delay.134.2.3Transparency and voice coding methods.134.2.4TMN interface.144.2.5Synchronization.144.2.6Frequency hopping characteristics.145Radio characteristics.145.1Frequency bands.145.2Channel arrangement.145.3System capacity.145.4Transmitter characteristics.155.4.1Tx power range.155.4.2Transmit power control.155.4.2.1Automatic Transmit Power Control (ATPC).155.4.2.2Remote Transmit Power Control (RTPC).155.4.3Spectrum mask.165.4.4Transmitter spurious emissions.175.4.5Radio frequency tolerance.175.5Receiver characteristics.175.5.1Input level range.175.5.2Spurious emissions.175.5.3BER performance.175.5.4Interference sensitivity.175.5.4.1Co channel interference sensitivity.175.5.4.2Adjacent channel interference sensitivity.185.5.4.3Broadband CW interference rejection capability.185.6Antenna port characteristics.185.6.1RF interface.185.6.2Return loss.186Types of subscriber equipment and network exchange interface.197Power supply and environmental characteristics.197.1Power Supply.197.2Environmental Conditions.197.2.1Equipment within weather-protected locations.197.2.2Equipment for non weather-protected locations.20SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)47.3Electromagnetic Compatibility Conditions.20Bibliography.21History.22SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)5Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server(http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmissionand Multiplexing (TM).National transposition datesDate of adoption of this EN:10 September 1999Date of latest announcement of this EN (doa):31 December 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):30 June 2000Date of withdrawal of any conflicting National Standard (dow):30 June 2000IntroductionThe main field of application of Point-to-Multipoint (P-MP) systems is to provide access to both public and privatenetworks (Public Switched Telephone Network (PSTN), Private Data Network (PDN), .). By means of P-MP systemsthe network service area may be extended to cover both distant and scattered subscriber locations; and the systems maybe applied to build new access networks covering both urban and rural areas.Subscribers are offered the full range of services by the particular public or private network. Subscribers have access tothese 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 networknode. These systems allow a service to be connected to a number of subscribers ranging from 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 DemandAssigned Multiple Access (DAMA) radio systems.The essential features of a typical P-MP DAMA radio system are:·efficient use of the radio spectrum;·concentration;·transparency.Radio is often the ideal way of obtaining communications at low cost and almost independent of distance, and difficulttopography. Moreover, a small number of sites is required for these installations, thus facilitating rapid implementationand minimizing maintenance requirements of the systems.SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)6Concentration means that m subscribers can share n radio channels (m being larger than n), allowing better use to bemade of the available frequency spectrum and at a lower equipment cost. The term "multi-access" means that everysubscriber has access to every channel (instead of a fixed assignment as in most multiplex systems). When a call isinitiated an available channel is allocated to it. When the call is terminated, the channel is released for another call.Concentration requires the use of distributed intelligent control which in turn allows many other operation andmaintenance functions to be added.Transparency means that the exchange and the subscriber equipment communicate with each other without being awareof the radio link.SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)71Scope1.1ApplicationsThe scope of the present document covers the following typical P-MP applications, delivered directly or indirectly, or inany superimposed transport network layer:·voice;·fax;·voiceband data;·telex;·data up to 64 kbit/s;·ISDN;·Internet Access.1.2Frequency bands and channel arrangementsThe 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 [6] and ITU-RRecommendation F.1098-1 [19]. For the 2,4 GHz band, the ITU-R Recommendation F.701-2 [7] is applicable.The present document may cover equipment which uses either Frequency Division Duplexing or Time DivisionDuplexing.NOTE: As with other point-to-multipoint standards, attention should be given to assigning spectrum so as to allowdifferent systems to operate in adjacent assigned frequencies without unacceptable mutual interference.This is the responsibility of the regulatory authorities who are advised to note any guidelines produced byCEPT, particularly those with reference to spectrum where unlike duplex methods are to be used.1.3Access methodThe 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 [25], with ahopping period up to 400 ms. During the dwell time, several different links in the same area may operateon different sub-channels in a manner which resembles the characteristics and properties of FDMAsystems. The sub-channel supporting each link may be further subdivided using frequency division, timedivision or a combination of both techniques. (The terms "hopping period", "dwell time" and"sub-channel" are defined in subclause 3.1).1.4CompatibilityThe present document is not intended to ensure that a Central Station (CS) from one manufacturer will inter-operate witha Terminal Station (TS) or Repeater Station (RS) from another manufacturer.SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)82ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.·References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.·For a specific reference, subsequent revisions do not apply.·For a non-specific reference, the latest version applies.·A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]ETS 300 012: "Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1specification and test principles".[2]ITU-T Recommendation Q.553 (1996): "Transmission characteristics at 4-wire analogue interfacesof digital exchanges".[3]ITU-T Recommendation Q.552 (1996): "Transmission characteristics at 2-wire analogue interfacesof digital exchanges".[4]ITU-T Recommendation G.821 (1996): "Error performance of an international digital connectionoperating at a bit rate below the primary rate and forming part of an integrated services digitalnetwork".[5]ITU-T Recommendation R.20 and V-series: "Telegraph modem for subscriber lines".[6]CEPT T/R 13-01 (1993): "Preferred channel arrangements for fixed services in the range1-3 GHz".[7]ITU-R Recommendation F.701-2 (1997): "Radio-frequency channel arrangements for analogueand digital point-to-multipoint radio systems operating in frequency bands in the range 1.350 to2.690 GHz (1.5, 1.8, 2.0, 2.2, 2.4 and 2.6 GHz)".[8]ETS 300 019: "Equipment Engineering (EE); Environmental conditions and environmental testsfor telecommunications equipment".[9]ETS 300 132: "Equipment Engineering (EE); Power supply interface at the input totelecommunications equipment; Part 1: Operated by alternating current (ac) derived from directcurrent (dc) sources; Part 2: Operated by direct current (dc)".[10]ITU-T Recommendation G.773 (1993): "Protocol suites for Q-interfaces for management oftransmission systems".[11]ETS 300 385: "Radio Equipment and Systems (RES); ElectroMagnetic Compatibility (EMC)standard for digital fixed radio links and ancillary equipment with data rate around 2 Mbit/s andabove".[12]ITU-T Recommendation G.711 (1988): "Pulse code modulation (PCM) of voice frequencies".[13]ITU-T Recommendation G.726 (1990): "40, 32, 24, 16 kbit/s adaptive differential pulse codemodulation (ADPCM)".[14]ITU-T Recommendation G.728 (1992): "Coding of speech at 16 kbit/s using low-delay codeexcited linear prediction".[15]ITU-T Recommendation G.729 (1996): "Coding of speech at 8 kbit/s using conjugate-structurealgebraic-code-excited linear-prediction".SIST EN 301 179 V1.1.1:2003

ETSIETSI EN 301 179 V1.1.1 (1999-09)9[16]ITU-R Recommendation F.697-2 (1997): "Error performance and availability objectives for thelocal-grade portion at each end of an ISDN connection at a bit rate below the primary rate utilizingdigital radio-relay systems".[17]ETS 300 324: "V interfaces at the digital Local Exchange (LE); V5.1 interface for the support ofAccess Networks (AN)".[18]ETS 300 347: "V interfaces at the digital Local Exchange (LE); V5.2 interface for the support ofAccess Networks (AN)".[19]ITU-R Recommendation F.1098-1 (1995): "Radio-frequency channel arrangements for radio-relaysystems in the 1 900 - 2 300 MHz band".[20]ITU-T Recommendation G.723: "Speech coders".[21]ITU-T Recommendation G.131 (1996): "Control of talker echo".[22]IEC 60169-1: "Radio-frequency connectors - Part 1: General requirements and measuringmethods".[23]IEC 60339-1: "General purpose rigid coaxial transmission lines and their associated flangeconnectors - Part 1: General requirements and measuring methods".[24]IEC 60339-2: "General purpose rigid coaxial transmission lines and their associated flangeconnectors - Part 2: Detail specifications"[25]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".[26]ITU-R Recommendation F.1189-1 (1997): "Error performance obj
...