ETSI TS 148 031-2017 Digital cellular telecommunications system (Phase 2+) (GSM) Location Services (LCS) Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SML.pdf

1、 ETSI TS 148 031 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Location Services (LCS); Serving Mobile Location Centre - Serving Mobile Location Centre (SMLC - SMLC); SMLCPP specification (3GPP TS 48.031 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTE

2、M FOR MOBILE COMMUNICATIONSRETSI ETSI TS 148 031 V14.0.0 (2017-04)13GPP TS 48.031 version 14.0.0 Release 14Reference RTS/TSGR-0648031ve00 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 - NAF 74

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9、tered and owned by the GSM Association. ETSI ETSI TS 148 031 V14.0.0 (2017-04)23GPP TS 48.031 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, if a

10、ny, 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 available

11、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, or

12、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 identiti

13、es. 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“, “sho

14、uld 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 ETSI T

15、S 148 031 V14.0.0 (2017-04)33GPP TS 48.031 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Abbreviations . 7g34 Procedures 7g34.1 RIT Procedures . 7g34.1.1 RIT Query Operation 8g34.1.2 RIT Indicatio

16、n Operation 8g34.1.3 RIT Query Stop Operation 9g34.2 (void) 9g34.3 Deciphering Keys Procedure 9g34.3.1 Deciphering Keys Update Operation 10g35 Error Handling 10g35.1 Missing Message Part . 10g35.2 Repeated Message Part . 10g35.3 Unforeseen Message Part . 10g35.4 Incorrect Data . 11g35.5 Repeated Ope

17、ration 11g35.6 Unforeseen Operation . 11g35.7 Unknown Request ID . 11g35.8 Dublicate Request ID . 11g35.9 No RIT Information 11g35.10 (void) 12g35.11 Deciphering Keys Error 12g35.12 Internal Error 12g35.13 Other Error Situations 12g35.14 Summary of Indications . 12g36 Signalling Elements 12g36.1 Mes

18、sages 13g36.1.1 Operation Code . 14g36.1.2 Request ID 15g36.1.3 Argument 16g36.1.4 Result 16g36.1.5 Error Indication . 16g36.2 ASN.1 Definition of Arguments, Results, and IEs . 17g3Annex A (normative): Operation and Error Definition . 20g3Annex B (informative): Description of Arguments, Results and

19、Information elements 21g3B.1 Description of elements 21g3B.1.1 Arguments and Results . 21g3B.1.1.1 RIT Query Operation 21g3B.1.1.1.1 Argument . 21g3B.1.1.1.2 Result. 21g3B.1.1.2 RIT Indication . 21g3B.1.1.2.1 Argument. 21g3B.1.1.2.2 Result . 22g3B.1.1.3 RIT Query Stop . 22g3B.1.1.3.1 Argument . 22g3

20、B.1.1.3.2 Result. 22g3ETSI ETSI TS 148 031 V14.0.0 (2017-04)43GPP TS 48.031 version 14.0.0 Release 14B.1.1.4 (void) . 22g3B.1.1.5 Send Deciphering Keys . 22g3B.1.1.5.1 Request 22g3B.1.1.5.2 Result. 22g3B.1.2 Information elements 22g3B.1.2.1 Request Type IE 22g3B.1.2.2 Cell List IE 23g3B.1.2.3 Refere

21、nce Clock IE . 24g3B.1.2.4 RIT Data IE . 26g3B.1.2.5 (void) . 28g3B.1.2.6 (void) . 28g3B.1.2.7 (void) . 28g3B.1.2.8 (void) . 28g3B.1.2.9 (void) . 28g3B.1.2.10 (void) . 28g3B.1.2.11 (void) . 28g3B.1.2.12 (void) . 28g3B.1.2.13 (void) . 28g3B.1.2.14 (void) . 28g3B.1.2.15 (void) . 28g3B.1.2.16 Decipheri

22、ng Key Type IE . 28g3B.1.2.17 Deciphering Keys IE . 28g3B.1.2.18 Location Area IE . 28g3B.1.2.19 (void) . 28g3Annex C (informative): Change History 29g3History 30g3ETSI ETSI TS 148 031 V14.0.0 (2017-04)53GPP TS 48.031 version 14.0.0 Release 14Foreword This Technical Specification has been produced b

23、y 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 with an identifying change o

24、f 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 all changes of substance,

25、 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 148 031 V14.0.0 (2017-04)63GPP TS 48.031 version 14.0.0 Release 141 Scope The present document contains the definition of the SML

26、CPP protocol to be used between two Serving Mobile Location Centres (SMLC). The LCS architecture is described in 3GPP TS 43.059. The following aspects of it are relevant to the issue: - each SMLC controls a number of LMUs, and a given LMU is under the direct control of a single SMLC; - there is a di

27、rect communication path, independent of SMLCPP, between a LMU and the SMLC that controls it; - deciphering keys are controlled by one SMLC in the location area and sent to other SMLCs in the same location area. SMLCPP runs between two SMLC functions in the same PLMN. Transport is outside the scope o

28、f the present document. It assumes a transport service between these functions, as provided by BSSAP-LE. The present document assumes that the underlying transport (e.g., as described by BSSAP-LE specifications) provides for transport and routing for any two pairs of SMLCs which need to run SMLCPP e

29、xchanges. The main functions of SMLCPP are described in 5. The key aspects are: a) allowing an SMLC to ask for and obtain information about Radio Interface Timing (RIT), as known from measurements done by LMUs not under its direct control; c) allowing an SMLC, that controls deciphering keys in the l

30、ocation area, to sent them to other SMLCs in the same location area. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, versio

31、n number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific 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 d

32、ocument in the same Release as the present document. 1 3GPP TS 21.905: “Vocabulary for 3GPP Specifications“. 2 (void) 3 3GPP TS 24.007: “Mobile radio interface signalling layer 3; General aspects“. 4 3GPP TS 24.008: “Mobile radio interface layer 3 specification“. 5 3GPP TS 43.059: “Functional Stage

33、2 Description of Location Services in GERAN (Release 4)“. 6 3GPP TS 29.002: “Mobile Application Part (MAP) specification“. 7 ASN.1 encoding rules “Specification of Packet Encoding Rules (PER)” ITU-T Rec. X.691 (1997) | ISO/IEC 8825-2:1998. 8 (void) 9 Abstract Syntax Notation One (ASN.1) “Specificati

34、on of Basic Notation” ITU-T Rec.X.680 (1997) | ISO/IEC 8824 1:1998. 10 (void) ETSI ETSI TS 148 031 V14.0.0 (2017-04)73GPP TS 48.031 version 14.0.0 Release 1411 3GPP TS 44.071: “Mobile radio interface layer 3 Location Services (LCS) specification“. 12 3GPP TS 49.031: “Location Services (LCS); Base St

35、ation System Application Part LCS Extension (BSSAP-LE)“. 3 Abbreviations Abbreviations used in the present document are listed in 3GPP TS 21.905 or in 3GPP TS 43.059. 4 Procedures 4.1 RIT Procedures Two modes of operation are supported: - provision of RIT information on request. In this mode a SMLC

36、Client needing RIT information requests it from another SMLC using the RIT Query operation. The SMLC Server sends the requested RIT information using the RIT Indication operation. There are two cases: - single indication: RIT Indication is requested only once. SMLCServerSMLCClientRIT IndicationRIT Q

37、ueryIn this case the procedure consists of one RIT Query and one RIT Indication operations. - Open-ended repetitive RIT Indications: RIT information is requested on a regular basis until the RIT Query Stop operation. SMLCServerSMLCClientRIT Indication. . .RIT IndicationRIT QueryRIT Query StopIn this

38、 case the procedure consists of one RIT Query, one or more RIT Indication, and one RIT Query Stop operations. - Autonomous provision of RIT information. In this mode, the RIT information is provided automatically by the SMLC Server, according to an internal configuration not managed through SMLCPP (

39、e.g., by O RIT Indication is requested only once; - open-ended repetitive indications; RIT Indication operations are requested on a regular basis until the RIT Query Stop operation. A RIT Query Response includes the same Request ID that the Request included, and it is used as a positive acknowledgem

40、ent. A RIT Query Error message can be sent in return, if the SMLC Server detects an error situation (e.g. syntax errors, or overlapping Request ID values), or it can not fullfil the Request (e.g. RIT information is requested for unknown BTSs ). It contains the same Request ID values as the Request.

41、4.1.2 RIT Indication Operation SMLCSMLCRIT Indication Request(Request ID, )RIT Indication Error(Request ID, )RIT Indication Response(Request ID)This operation allows a SMLC to send RIT information to another SMLC. It can be used both in the cased of autonomous provision, and the provision of RIT inf

42、ormation on request. The RIT Indication Request contains RIT information to be delivered. It also contains the Request ID that: ETSI ETSI TS 148 031 V14.0.0 (2017-04)93GPP TS 48.031 version 14.0.0 Release 14- has the same value as the RIT Query operation, that invoked the RIT Indication (RIT provisi

43、on on request); - has a reserved value indicating autonomous provision. A RIT Indication Response includes the same Request ID that the Request included, and it is used as a positive acknowledgement. The SMLC Client can send a RIT Indication Error to the SMLC Server, if it detects an error situation

44、 (e.g. syntax errors, or unknown Request ID values). 4.1.3 RIT Query Stop Operation SMLCSMLCRIT Query Stop Request(Request ID)RIT Query Stop Error(Request ID, )RIT Query Stop Response(Request ID)This operation allows a SMLC to send an indication to another SMLCPP to stop sending RIT information, tha

45、t it has originally asked to obtain on open-ended repetitive basis. The RIT Query Stop Request includes the Request ID values that is the same as in the corresponding RIT Query that should be stopped. A RIT Query Stop Response includes the same Request ID that the Request included, and it is used as

46、 a positive acknowledgement. The SMLC Server can send a RIT Query Stop Error to the SMLC Client, if it detects an error situation (e.g. syntax errors, or unknown Request ID values). 4.2 (void) 4.3 Deciphering Keys Procedure This procedure includes one operation that is related to LCS assistance data

47、 broadcast deciphering keys. With this operation the SMLC Server controlling the deciphering keys (needed in LCS Assistance Data broadcast) can send the deciphering keys to other SMLC Clients in the same location area. One SMLC (i.e. SMLC Server) in location area is ETSI ETSI TS 148 031 V14.0.0 (201

48、7-04)103GPP TS 48.031 version 14.0.0 Release 14selected to control the deciphering keys and sending the keys to other SMLC Clients in location area. The sending has to be done to each SMLC Client with a separate message. SMLCClientSMLCServerDeciphering Keys Update4.3.1 Deciphering Keys Update Operat

49、ion SMLCSMLCDeciphering Keys Update Request(Request ID, )Deciphering Keys Update Response(Request ID)Deciphering Keys Update Error(Request ID, )This operation allows a SMLC controlling deciphering keys to send the keys to another SMLC Client. The Deciphering Keys Update Request includes the Request ID and information of keys. A Deciphering Keys Update Response includes only the same Request ID that the Request included, and it is used as a positive acknowledgement. The SMLC Client can send a Deciphering Keys Update Error to the SMLC Serv