1、 STDmETSI ETS 300 392-4-3-ENGL 3999 3400855 0435477 2bL E EUROPEAN I ELECOMMUNICATION n STANDARD ETS 300 392-4-3 June 1999 Source: TETRA Reference: DE/TETRA-O3001-04-3 ICs: 33.020 Key words: radio, TETRA Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 4: Gateways basic operation; Sub-
2、part 3: Data networks gateway ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE Internet: secretariat Qetsi.fr - hitp:/www.etsi.org Tel.: +33 4 92
3、 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notificatlon: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. Q European Telecommunications Standards Institute 1999. All rights reserved. STD-ETSI ETS
4、300 392-4-3-ENGL 1999 3400855 0415478 IT8 = Page 2 ETS 300 392-4-3: June 1999 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Standards
5、Making Support Dept.“ at the address shown on the title page. STD-ETSI ETS 300 372-4-3-ENGL 1777 3400855 0415477 034 Page 3 ETC 300 392-4-3: June 1999 Contents Foreword . 5 1 Scope 7 2 Normative references . 7 3 Definitions and abbreviations 7 3.1 Definitions 7 Abbreviations . 7 3.2 4 General on dat
6、a network gateways 8 5 Data network gateways . 8 5.1 X.25 and X.75 gateway . 8 5.2 Specific ConnectionLess Network Service (SCLNS) 8 6 Address mapping 8 Annex A (informative): Bibliography 9 History . 1 0 STDmETSI ETS 300 392-4-3-ENGL 3999 3400855 0435480 85b m Page 5 ETS 300 392-4-3: June 1999 Fore
7、word This European Telecommunication Standard (ETS) has been produced by the Terrestrial Trunked Radio (TETRA) Project of the European Telecommunications Standards Institute (ETSI). This ETS is a multi-part standard and will consist of the following parts: Part 1: “General network design“; Part 2: “
8、Air Interface (Al)“; Part 3: Part 4: “Gateways basic operation“; Part 5: Part 6: Part 7: “Security“; Part 9: Part 1 O: Part 1 1 : Part 12: Part 13: Part i 4: “Interworking at the Inter-System Interface (ISI)“; “Peripheral Equipment Interface (PEI)“; “Line connected Station (LS)“; “General requiremen
9、ts for supplementary services“; “Supplementary services stage 1 “; “Supplementary services stage 2“; “Supplementary services stage 3“; “SDL model of the Air Interface (Al)“; “Protocol Implementation Conformance Statement (PICS) proforma specification“. Transposition dates Date of adoption of this ET
10、S: Date of latest announcement of this ETS (doa): 4 June 1999 30 September 1999 Date of latest publication of new National Standard or endorsement of this ETS (dop/e): 31 March2000 I Date of withdrawal of any conflicting National Standard (dow): 31 March2000 Previous page is blank STD=ETSI ETS 300 3
11、72-4-3-ENGL 1777 3400855 0415481 792 E Page 7 ETS 300 392-4-3: June 1999 1 Scope This ETS specifies Packet mode Data Network (PDN) gateways for TETRA Switching and Management Infrastructures (SwMI). The circuit mode data services and Internet Protocol (IP) issues are outside the scope of this ETS. T
12、he information exchange about address mapping between the TETRA air interface address and any external data network address due to migration between TETRA SwMIs is outside the scope of this gateway standard. The gateway functions are defined as required by the used upper network layer protocol and a
13、re outside the scope of this standard. 2 Normative references This ETS incorporates by dated and undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subseque
14、nt amendments to or revisions of any of these publications apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. 1 i41 ETS 300 392-1 : “Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part
15、1: General network design“. ETS 300 392-2: “Terrestrial Trunked Radio (TETRA): Voice plus Data (V+D); Part 2: Air Interface (Al)“. ITU-T Recommendation X.35 (1993): “Interface between a PSPDN and a Private PSDN which is based on X.25 procedures and enhancements to define a gateway function that is p
16、rovided in the PSPDN“. ITU-T Recommendation X.75 (1 993): “Packet-switched signalling system between public networks providing data transmission services“. ITU-T Recommendation X.31 (1 995): “Support of packet mode terminal equipment by an ISDN“. 3 Definitions and abbreviations 3.1 Definitions For t
17、he purposes of this ETS, the following terms and definitions apply: TETRA user: user within TETRA addressing domain and utilizes a data network gateway. 3.2 Abbreviations For the purposes of this ETS, the following abbreviations apply: CLNP CONP CONS GTSI IP ITS1 NSAP PDN SCLNS SwMI ConnectionLess N
18、etwork Protocol Connection Oriented Network Protocol Connection Oriented Network Service Group TETRA Subscriber Identity Internet Protocol Individual TETRA Subscriber Identity Network Service Access Point Packet mode Data Network Specific ConnectionLess Network Service Switching and Management Infra
19、structure Previous page is blank STD.ETS1 ETS 300 392-4-3-ENGL 3999 3400855 0435482 629 Page 8 ETS 300 392-4-3: June 1999 4 General on data network gateways TETRA air interface standard ETS 300 392-1 I and ETS 300 392-2 2 can support multiple packet mode data communication standards such as: - Conne
20、ction Oriented Network Protocol (CONP); - Connectionless Network Protocol (CLNP); - This ETS considers the X.25 packet data gateway and related issues. As a part of data transmission path a TETRA SwMI could behave seen from the external network as a data terminal or as a data network node. In both c
21、ases a TETRA user equipment identification Individual TETRA Subscriber Identity (ITSI) or Group TETRA Subscriber Identity (GTSI) is associated with an X.25 address known by the external network, see ETS 300 392-1 l, clause 7, Network Service Access Point (NSAP) addressing. This association or bindin
22、g may be static or dynamic. Specific ConnectionLess Network Service (SCLNS). 5 Data network gateways 5.1 X.25 and X.75 gateway A TETRA SwMI shall be connected to a X.25 network as a X.25 network node. ITU-T Recommendation X.35 3 should be used as a guide in design of interface to PDNs. The SwMI shal
23、l act as a data node on the X.25 network and the protocol defined in ITU-T Recommendation X.75 4 shall be used for interworking purposes. 5.2 Specific ConnectionLess Network Service (SCLNS) The SCLNS as defined in ETS 300 392-2 2, clause 26 as such is a sub-network access protocol and requires an up
24、per network layer provided by other network layer protocols. A full version of this service is bound to the TETRA domain although some of the facilities may be mapped against other network protocols in the gateway e.g. time stamping, see ETS 300 392-2 2, subclause 27.2.1. 6 Address mapping The TETRA
25、 networks use addresses as defined in ETS 300 392-1 I, clause 7. TETRA air interface addressing and external data networks addressing are inherently different although TETRA address construction is the same as used in other land mobile systems and e.g. country code values may be same. For that reaso
26、n an address mapping is required between TETRA and external networks. The address mapping inside TETRA network should follow the same principles as defined in ITU-T Recommendation X.31 5 for the X.25 service. in effect the TETRA air interface address should be a sub-network address limited to the TE
27、TRA domain. STD-ETSI ETS 300 372-4-3-ENGL 3997 3400855 0435483 565 Page 9 ETC 300 392-4-3: June 1999 Annex A (informative): Bibliography IS0 8208: “X.25 packet level protocol for Data Terminal Equipment“. IS0 8348: “Information processing systems - Data communications-Network service definition“. IS
28、0 8473: “Protocol for providing the connectionless mode network service“. IS0 8878: “Use of X.25 to provide the OS1 connection mode network“. ITU-T Recommendation X.21 (1 992): “Interface between Data Terminal equipment and Data Circuit-terminating Equipment for synchronous operation on public data
29、networks“. CCITT Recommendation X.21 bis (1 988): “Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to synchronous V- Series modems“. ITU-T Recommendation X.25 (1 993): “Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipme
30、nt (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit“. ITU-T Recommendation X.28 (1 993): “DTUDCE interface for a start-stop mode data terminal equipment accessing the packet assembly/disassembly facility (PAD) in a public data network situat
31、ed in the same country“. ITU-T Recommendation X.29 (1 993): “Procedures for the exchange of control information and user data between a packet assembly/disassembly (PAD) facility and a packet mode DTE or another PAD“. ITU-T Recommendation X.30A.461 (1 993): “Support of X.21, X.21 bis and X.20 bis ba
32、sed Data Terminal Equipments (DTEs) by an Integrated Services Digital Network (ISDN)“. ITU-T Recommendation X.32 (1993): “Interface between DTE and DCE for terminals operating in the packet mode and accessing a packet switched public data network through a public switched telephone network or an int
33、egrated services digital network or a circuit switched public data network“. ITU-T Recommendation X.300 (1 993): “General Principles for Interworking between Public Networks and between Public Networks and other Networks for the Provision of Data Transmission Services“. ITU-T Recommendation X.301 (1
34、 996): “Description of the general arrangements for call control within a subnetwork and between subnetworks for the provision of data transmission services“. ITU-T Recommendation X.325 (1 993): “General Arrangements for Interworking between Packet Switched Public Data Networks (PSPDNs) and Integrat
35、ed Services Digital Networks (ISDNs) for the Provision of Data Transmission Services“. Page 10 ETS 300 392-4-3: June 1999 History I Document history I November 1998 I Public Enquiry PE9911: 1998-11-13 to 1999-03-12 1 I March 1999 I Vote V 9922: 1999-03-30 to 1999-05-28 I I June 1999 I First Edition I ISBN 2-7437-31 55-9 Dpt lgal : Juin 1999
