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ETSI TS 148 014-2017 Digital cellular telecommunications system (Phase 2+) (GSM) General Packet Radio Service (GPRS) Base Station System (BSS) - Serving GPRS Support Node (SGSN) in.pdf

1、 ETSI TS 148 014 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Base Station System (BSS) - Serving GPRS Support Node (SGSN) interface; Gb interface Layer 1 (3GPP TS 48.014 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL

2、SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 148 014 V14.0.0 (2017-04)13GPP TS 48.014 version 14.0.0 Release 14Reference RTS/TSGR-0648014ve00 Keywords GSM 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 - N

3、AF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electron

4、ic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) v

5、ersion 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 available at https:/portal.etsi.org/TB/ETSIDeliverabl

6、eStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including ph

7、otocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institut

8、e 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks

9、registered and owned by the GSM Association. ETSI ETSI TS 148 014 V14.0.0 (2017-04)23GPP TS 48.014 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs,

10、 if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “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 avail

11、able on the ETSI Web server (https:/ipr.etsi.org/). 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

12、, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM ide

13、ntities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“,

14、 “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI E

15、TSI TS 148 014 V14.0.0 (2017-04)33GPP TS 48.014 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Abbreviations . 5g34 Definitions 6g34.1 Definitions 6g34.2 Symbols 6g35 Layer 1 specification 6g35.1 P

16、hysical configuration of the Gb interface . 6g35.2 Physical layer interface 6g35.3 Error rate 7g35.4 Provision of physical channels . 7g3Annex A (informative): Change History 8g3History 9g3ETSI ETSI TS 148 014 V14.0.0 (2017-04)43GPP TS 48.014 version 14.0.0 Release 14Foreword This Technical Specific

17、ation has been produced by the 3rd Generation Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG wit

18、h an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for

19、all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 148 014 V14.0.0 (2017-04)53GPP TS 48.014 version 14.0.0 Release 141 Scope The present document specifies

20、 the physical layer on the Base Station System (BSS) to Serving GPRS Support Node (SGSN) interface (Gb interface) and references layer 1 standards to be used on this interface. The protocol stack on the Gb interface is defined in the stage 2 3GPP TS 23.060. 2 References The following documents conta

21、in provisions which, through reference in this text, constitute provisions of the present document. References 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-specifi

22、c reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2

23、3GPP TS 22.060: “General Packet Radio Service (GPRS); Service description; Stage 1“. 3 3GPP TS 23.060: “General Packet Radio Service (GPRS); Service description; Stage 2“. 4 3GPP TS 48.004: “Base Station System - Mobile-services Switching Centre (BSS-MSC) interface; Layer 1 specification“. 5 FRF.1.2

24、 (July 2000): “User-to-Network Interface (UNI) Implementation Agreement“. 6 ITU-T Recommendation G.704 (Blue Book): “Synchronous frame structures used at 1 544, 6 312, 2 048, 8 488 and 44 736 kbit/s hierarchical levels“. 7 ANSI T1.403-1999: “Network and Customer Installation Interfaces - DS1 - Elect

25、rical Interface“. 8 Bellcore TR-NWT-001203 Issue 2 (December 1992): “Generic Requirements for the Switched DS1/Switched Fractional DS1 Service Capability From an ISDN Interface (SWF-DS1/ISDN)“. 9 ITU-T Recommendation V.35: “Data transmission at 48 kilobits per second using 60-108 kHz group band circ

26、uits“. 10 ITU-T Recommendation G.703: “Physical/electrical characteristics of hierarchical digital interfaces“. 11 ITU-T Recommendation X.21: “Interface between Data Terminal Equipment and Data Circuit-terminating Equipment for synchronous operation on public data networks“. 12 TIA/EIA-530-A: “High

27、Speed 25-Position Interface for Data Terminal Equipment and Data Circuit-Terminating Equipment, Including Alternative 26-Position Connector (ANSI/TIA/EIA-530-A-92) (R98)“. 3 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 and 3GPP TS 23.060, and the

28、following apply: DCE Data Circuit-terminating Equipment DTE Data Terminal Equipment FRF Frame Relay Forum ETSI ETSI TS 148 014 V14.0.0 (2017-04)63GPP TS 48.014 version 14.0.0 Release 144 Definitions 4.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TS

29、22.060 and the following apply: E1: a four wire symmetrical digital transmission path carrying PCM signal at 2 048 kbit/s. T1: a four wire symetrical digital transmission path carrying PCM signal at 1 544 kbit/s. 4.2 Symbols For the purposes of the present document, the symbols given in 3GPP TS 23.0

30、60 apply. 5 Layer 1 specification Since Frame Relay shall be used on the Gb interface for phase 1 of GPRS, see 3GPP TS 23.060, the present document refers to “The Frame Relay Forum User-to-Network Implementation Agreement (UNI)“ which recommends physical layer interfaces to be used in conjunction wi

31、th Frame Relay. 5.1 Physical configuration of the Gb interface The detailed physical configuration of the Gb interface is subject to negociation between operators and equipment providers and is out of the scope of the present document. EXAMPLE: Point-to-point physical lines or an intermediate Frame

32、Relay network may be used. In the latter case, the two ends of the Gb interface may use different types of physical interfaces. 5.2 Physical layer interface Each of the physical layer of the Gb interface shall conform to one of the following FRF 1.2 clauses. This does not mean that each BSS and SGSN

33、 equipment has to support all of these physical interfaces, it means that the supported physical interfaces shall be compliant with the corresponding clause of FRF 1.2. a) clause 2.1.1: ANSI T1.403. b) clause 2.1.2: V.35, physical circuit and DTE/DCE interface clauses. c) clause 2.1.3: G.703. d) cla

34、use 2.1.4: G.704. e) clause 2.1.5: X.21. f) clause 2.1.6: TIA/EIA-530-A. g) clause 2.1.7: HSSI. The Gb interface may be multiplexed with the A interface on the same E1 (2 048 kbit/s), or T1 (15 44 kbit/s) digital path. In case of E1 interface, ITU-T Recommendation G.704 shall be applied according to

35、 FRF 1.2 and ETSI ETSI TS 148 014 V14.0.0 (2017-04)73GPP TS 48.014 version 14.0.0 Release 143GPP TS 48.004 as appropriate, and in case of T1 interface ANSI T1.403 shall be applied according to FRF 1.1 and 3GPP TS 48.004 as appropriate. In the case where multiple 64 kbit/s channels are used on an E1

36、(2048 kbit/s), digital path on the Gb interface, it is recommended to aggregate them into one nx64 kbit/s channel, see ITU-T Recommendation G.704, clause 5 and included clauses. In case where multiple 64 kbit/s channels are used on a T1 (1 544 kbit/s) digital path on the Gb interface, it is recommen

37、ded to aggregate them into nx64kbit/s (where 2 n 24) channel, see Bellcore TR-NWT-1203. This approach optimises the use of the available bandwidth by taking advantage of the statistical multiplexing at the upper layer. However, this approach requires that no slipping occurs between individual 64 kbi

38、t/s channels e.g. when passing through intermediate equipment between BSS and SGSN. 5.3 Error rate The error rate experienced at the physical layer between the BSS and the SGSN shall be compatible with the operation of the upper layers. 5.4 Provision of physical channels The physical channels on the

39、 Gb interface shall be permanently reserved by means of administrative procedures. ETSI ETSI TS 148 014 V14.0.0 (2017-04)83GPP TS 48.014 version 14.0.0 Release 14Annex A (informative): Change History TSG # TSG Doc. CR Rev Subject/Comment New January 2016 - - - Rel-13 version created based on v12.0.0 13.0.0 Change history Date Meeting TDoc CR Rev Cat Subject/Comment New version 2017-03 75 Version for Release 14 (frozen at TSG-75) 14.0.0 ETSI ETSI TS 148 014 V14.0.0 (2017-04)93GPP TS 48.014 version 14.0.0 Release 14History Document history V14.0.0 April 2017 Publication

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