1、STD-ETSI EN 301 102-ENGL 1998 3400855 0313394 941 = EN 301 102 1.1.1 (1998-06) European Standard (Telecommunications series) Private Integrated Services Network (PEN); Mapping functions for the employment of a circuit mode basic service and the supplementary service user-to-user signalling as a pair
2、 of on-demand inter-PINX connections (Map pi ng/U U S) STD-ETSI EN 301 102-ENGL 1998 W 3400655 0311395 686 W 2 Reference DE NE CM A-O0 1 24 (a7cOOico.P DF) Keywords ISDN, PINX, PSTN Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbon
3、ne - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Sit No 348 623 562 00017 - NAF 742 C Associatbn but non lucratl emstrde ia Sous-Prfectue de Grasse (OS) No 7Y88 internet secretariat 8 etsi.fr hitp:/Ewww.etsi.fr hitp:/Ewww.etsi.org EN 301 102 V1.1.1 (1998-06) copyr/g/ri Mtmon No part may be
4、 reproduced except as authorized by written permission. The copy-righ and the foregoing restriction extend to reproduction in ail media. Q European Teiecommiullcations Standards Institute 1998. All rights nsented. STD-ETSI EN 301 102-ENGL 1998 m 3400855 03LL396 714 m 3 EN 301 102 V1.l.l (1 998-06) T
5、able of contents Intellectual Property Rights 4 Foreword 4 1 Scope 5 2 Conformance 5 3 References 5 4.2.4 4.7.5 5 6 7 8 8.1 8.1.1 8.1.2 8.7 8.2.1 8.3.2 9 9.1 9.2 10 10.1 10.3 10.3 10.4 4 Definitions 6 4.1 External definitions . 4.7 Special definitions . . 6 4.7.1 Calling PINX . . 4.2.2 Called PINX 6
6、 4.7.3 Channel 6 7 4.2.3.2 7 7 4.2.3.1 Inter-PINX Link . 7 List of acronyms . 7 Introduction 7 Capabilities at the Q reference point 9 Mapping functions . 9 ISDN primary rate user-network Layer 1 interface 9 ISDN basic user-network Layer 1 interface . 10 Physical adaptation . . 9 Mapping matrix 10 .
7、 Bearer conditioning for the D Q-channel 11 IPC control functions . 11 IPC establishment . . . 11 IPC clearing . 12 IPL control functions . 12 Static pre-conditions for IPL establishment Use of message segmentation 12 . 12 IPL establishment . 12 Transfer of inter-PINX signalling Layer 2 information
8、. 12 Annex A (normative): A.l Introduction 13 A.2 Instructions for completing the ICs proforma . 13 A.2.1 General structure of the ICs proforma . 13 A.2.2 Additional information . 14 A.2.3 Exception information A.3 ICs proforma for PINX implementation 14 A.3.1 Implementation identification . 14 15 .
9、 15 Implementation Conformance Statement (ICs) proforma . 13 A.3.3 Procedures History 16 ETSI STD-C.TS1 EN 301 b02-ENGL 1998 3400855 0311397 650 4 EN 301 lo2 Vi .i .1 (1 998-0s) Intellectual Property Rights IPRs essential or potentially essentiai to the present document may have been declared to ETS
10、I. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members , and can be found in SR O00 314 “Intellectual Property Rights (IPRs); Essential, orpotentially Essential, IPRs notijed to ETSI in respect ofETSI standards“, which is available free
11、of charge from the ETSI Secretariat. Latest updates are available on the ETSI Web server (htrp:/www.etsifr/ipr or http:/www.etsi.org/ipr). 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 I
12、PRs not referenced in SR O00 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 pkduced by European Computer Manufacturers Association ECMA. The present document is o
13、ne of a series of ECMA standards defining mapping functions in exchanges of Private Integrated Services Networks (PISNs) required for the utilization of intervening network scenarios. The series uses the ISDN concepts as developed by IT-T (formerly CClrr) and is also within the framework of standard
14、s for open systems interconnection as defmed by 1SO. The present document specifies mapping functions for the type of scenarios where two PlNXs are interconnected via on-demand connections via the public ISDN using the supplementary service User-to-User Signalling for carrying signalling information
15、. The present document is based upon the practical expaience of ECMA member companies and the results of their active and continuous participation in the work of ISO/IEC JTCl, ITU-T, ETSI and other international and national standardization bodies. It has been produced under ETSI work item DWECMA-00
16、124. It represents a pragmatic and widely based consensus. National transposition dates Date of adoption of this EN: Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (doNe): Date of withdrawal of any confiicting National Stan
17、dard (dow): 5 May 1998 31 August 1998 28 February 1999 28 February 1999 STD-ETSI EN 303 JOZ-ENGL 3998 3400855 0333398 597 5 EN 301 102 V1.1.1 (1 998-06) 1 Scope The present document specifies the mapping functions for a pair of on-demand inier-PLNX connections using a circuit mode basic service and
18、the supplementary service User-to-User Signalling (service 3) of a public ISDN at the same time. In order to connect a Private Integrated services Network exchange (PINX) to another PUVX, mapping functions are required to adapt the specific interfaces at the C reference point to the application at t
19、he Q reference point. As such, mapping functions provide for physical adaptation to the interface at the C reference point. Mapping functions also provide for the mapping of user channels and signailing information at the Q reference point to the appropriate channels or timeslots at the C reference
20、point. The C and Q reference points are defined in ISO/iEC 11579-13. At the Q reference point the mappings provide a 64 kbit/s service for user channels and a packet mode service for the signalling channel. Bearer conditioning is outside the scope of the present document, except for providing the la
21、yer 2 for the signalling channel at the Q reference point. Scenario management is outside the scope of the present document. The present document is applicable to PINXs which can be interconnected to form a PISN and which support signalling protocols at the Q reference point. 2 Conformance In order
22、to conform to the present document, a PWX shall satisfy the requirements identified in rhe Implementation Conformance Statement (1CS) proforma in annex A. 3 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document Refe
23、rences are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, subsequent revisions do apply A non-specific reference to an ETS shall also be taken to ref
24、er to later versions published as an EN with the same number. 111 121 EG 201 568 (V1.3.5): “Example 2, using fmed text“. ISOAEC 11 574: “Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode 64 kbit/s bearer services
25、 - Service description, functional capabiiities and information flows (1994)“. ISOAEC 11 579- 1 : “Information technology - Telecommunications and information exchange between systems - Private integrated services network - Part 1: Reference configuration for PISN Exchanges (PINX) (1994)“. ETS 300 0
26、1 1 : “Integrated Services Digitai Network (ISDN); Primary rate user-network interface; Layer 1 specification and test principles (1992)“. ETS 300 012: “Integrated Services Digital Network (ISDN); Basic user-network interface; Layer 1 specification and test principles (1992)“. I31 L41 15 J ETSI 6 EN
27、 301 1M V1.1.1 (1998-06) 161 ES 300 286: “Integrated Services Digital Network (ISDN); User-to-User Signalling (UUS) supplementary service; Digital Subscriber Signalling System No. one (DDSl) protocol; (1995)“. ETS 300 402: “integrated Services Digitai Network (ISDN); Digital Subscriber Signalling Sy
28、stem No. one (DSSI) protocol; Data link layer; Application of CCIlT Rec. Q.920fi.440 and Q.921A.441 (1995)“. ETS 300 403: “Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSSl) protocol; Signalling network layer for circuit mode basic call control (1995)“. E
29、TS 300 415: “Private Integrated Services Network (PISN); Terms and definitions (1994)“. CCIIT Recommendation 1.1 12: “Vocabulary of terms for ISDNs (1988)“. 171 181 191 1101 1111 CCIIT Recommendation 1.210: “Principles of telecommunication services supported by an ISDN and the means to describe them
30、 (1988)“. CCIlT Recommendation 1.41 1: “ISDN user-network interfaces - Reference configurations (1988)“. 1121 4 Def ni t ions 4.1 External definitions For the purpose of the present document the foliowing defimitions apply: Basic Service (as): (CCITT Recommendation 1.210 i 11) Cali, Basic Call (BC):
31、 (ISOREC 11582) Integrated Services Digitai Network (ISDN): (CC Recommendation 1.112 lo) Private Integrated Services Network (PISN): (ISOREC 11579-1 131) Private Integrated Services Network Exchange (PINX): (ISO/iEC 11579- 1131) public ISDN. (ETS 300 415 191) signalling: (CCITT Recommendation 1.112
32、lo) Supplementary Service (Sa: (ISO/IEC 11582) 4.2 Special definitions 4.2.1 Calling PINX The PINX which is at the originating interface of the public ISDN Intervening Network (IVN). 4.2.2 Called PINX The PINX which is at the destination interface of the public ISDN (IVN). 4.2.3 Channel A means of b
33、i-directional transmission of user or signaliing information between two points. STDDETSI EN 301 102-ENGL 1998 m 3400855 0311400 T75 m 7 EN 301 102 V1.l.l (1998-06) 4.2.3.1 D,-Channel A channel used to convey call control information between the Q reference points of two peer PiNXs. 4.2.3.2 U,-Chann
34、el A channel used to convey user information between the Q reference points of two PINXs. 4.2.4 Inter-PINX Connection A connection provided by an IVN between two C reference points used to transport inter-PiNX information from the PISN control plane andor the PISN user plane. 4.2.5 Inter-PINX Link A
35、 link between the Q reference points of two PINXs, comprising the totality of signalling transfer and user information transfer means. 5 DLL DSS 1 FCS ICs IPC IPL ISDN IVN PISN PINX PL uus3 List of acronyms Data Link Layer Digital Subscriber Signalling System No. one Field Control Sequence Implement
36、ation Conformance Statement Inter-PNX Connection Inter-PiNX Link Integrated Services Digital Network Intervening Network Private Integrated Services Network Private Integrated Services Network Exchange Physical Layer User-to-User Signalling service 3 - 6 Introduction The Inter-PINX Connection (IPC)
37、scenario using circuit mode basic services and the supplementary service User-to-User Signalling service 3 (UUS3) as defined for public ISDNs is an on-demand connection scenario. This scenario creates an Inter-PINX Link (IPL) from the connections established as a result of an ISDN call. The ISDN Cal
38、i is established by specifying the supplementary service UUS3. The signalling connection associated with the ISDN call in conjunction with the UUS3 information transfer capability is used to provide the inter-PiNX signalling connection. The circuit mode ISDN connection is used to provide the inter-P
39、iNX user connection. This scenario also includes procedures for sequence control and end-to-end flow control. Connections of this scenario can be established and released at any time under the control of either PiNX. In case of failure, the public ISDN may reject a call establishmentrequest or relea
40、se an already established call. In case of congestion, the sending PINX may inhibit temporarily the sending of USER NFORMATION signalling messages by nieans of an internal congestion mechanism. This scenario provides for the use of up to two pairs of signalling and user information connections per I
41、SDN basic access and up to thirty pairs of signalling and user information connections per ISDN primary rate access (subject to implementation in the public ISDN). Multiple pairs of IPCs may exist at one or at more interfaces of a PiNX. Each pau of IPCs can convey just one LPL. In the case of multip
42、le pairs of IPCs (at one or more interfaces of a PiNX), i.e. several calls with UUS3 are established at the same time from one PINX to one or more other PlNXs, there is no mapping Co-ordination necessary. ETSi 8 EN 301 102 V1.l .i (1 99846) Provision of just one number for addressing a Called PiNX i
43、s sufficient for establishment of any number of pairs of IKs from a given Caiiing PiNX. STD-ETSI EN 301 102-ENGL 3978 m 3400855 031L402 848 9 EN 301 102 V1.l.l (1998-06) 7 Capabilities at the Q reference point For each instance of the Q reference point: - - one signalling channel (DQ ) for carrying
44、the inter-PNX Layer 3 signalling protocol, and one user channel (U Q) are provided. Inter-PINX signalling information is not restricted to call control on this particular U Q-channel. For a UQ-channel the foliowing bearer capability shall be provided - - NOTE: information transfer rate: 64 kbit/s; o
45、ther attributes shall be the same as at the C reference point. The provision of bearer conditioning can change these attributes. However, this is outside the scope of the present document. For a DQ-channei the following bearer capability shall be provided: - Transfer mode: packet mode; - - Informati
46、on transfer rate: implementation-dependent; - Information transfer capability: unrestricted digital information; Other attributes shall be the same as at the C reference point. The functions to map D and UQ channels to an IPC at the C reference point are described in clause 8. 8 Mapping functions Th
47、e PINX mapping functions shall meet the requirements defuied for physical adaptation (see subclause 8.1), channel allocation (see subclause 8.2.1) and bearer conditioning for the D Q-channel (see subclause 8.2.2). 8.1 Physical adaptation A PINX shall support at least one of the following physical ad
48、aptations. 8.1.1 ISDN primary rate user-network Layer 1 interface Layer 1 termination shall be in accordance with ETS 300 O11 4. Timeslots 1 to 15 and 17 to 31 shall be used for up to thirty circuit mode 64 kbids IPCs for user information. Timeslot 16 (D-channel) carries signalling information for e
49、stablishing and clearing the circuit mode 64 kbih IPCs and providing, for each one, a packet mode 1PC for inter-PINX signalling information through the use of UUS3. NOTE: UUS3 provides a packet mode service by virtue of allowing the transfer of User-to-User information in USER LNFORMATLON messages using the call reference of the circuit mode 64 kbit/s IPC. The circuit mode 64 kbit/s IPC will in general have different cail references at the caiiing and called interfaces. The Layer 2 protocol in timeslot 16 at the C referenc
