1、 ETSI TR 1Universal Mobile TelRequirements for serWireless Local A(3GPP TR 22.9TECHNICAL REPORT 122 937 V13.0.0 (2016elecommunications System (LTE; ervice continuity between mol rea Network (WLAN) netwo.937 version 13.0.0 Release 1316-01) (UMTS); obile and rks 13) ETSI ETSI TR 122 937 V13.0.0 (2016-
2、01)13GPP TR 22.937 version 13.0.0 Release 13Reference RTR/TSGS-0122937vd00 Keywords LTE,UMTS 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 742 C Association but non lucratif enregistre la Sous-Prfect
3、ure 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 electronic and/or print versions of the present document shall not be m
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8、 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 registered and owned by the GSM Association. ETSI ETSI TR 122 937 V13.0.0
9、 (2016-01)23GPP TR 22.937 version 13.0.0 Release 13Intellectual 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 any, is publicly available for ETSI members and non-members, and can
10、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 on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI
11、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 may be, or may become, essential to the present document. Foreword T
12、his Technical Report (TR) 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 identities. These should be interpreted as being references to the corresponding ET
13、SI 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“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to
14、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 TR 122 937 V13.0.0 (2016-01)33GPP TR 22.937 version 13.0.0 Release 13Content
15、s Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Use Cases . 7g34.1 General requirements . 7g34.2 Use Case 1 8g34.2.1 Descripti
16、on 8g34.2.2 Requirements 8g34.2.3 Analysis 10g34.3 Use Case 2 12g34.3.1 Description 12g34.3.2 Requirements 12g34.3.3 Analysis 13g34.6 Use Case 3 14g34.6.1 Description 14g34.6.2 Requirements 14g34.6.3 Analysis 16g34.7 Use Case 4 16g34.7.1 Description 16g34.7.2 Requirements 16g34.7.3 Analysis 16g34.8
17、Use Case 5 17g34.8.1 Description 17g34.8.2 Requirements 17g34.8.3 Analysis 17g34.9 Use Case 6 17g34.9.1 Description 17g34.9.2 Requirements 17g34.9.3 Analysis 18g34.10 Use Case 7 18g34.10.1 Description 18g34.10.2 Requirements 18g34.10.3 Analysis 19g35 Harmonized requirements 19g35.1 Service aspects .
18、 19g35.2 Security aspects 21g35.3 UICC aspects 21g35.4 Charging aspects 21g36 Recommendations 22g36.1 General recommendations and suggested workplan . 22g36.2 List of recommended requirements 22g3Annex A: Change history 24g3ETSI ETSI TR 122 937 V13.0.0 (2016-01)43GPP TR 22.937 version 13.0.0 Release
19、 13History 25g3ETSI ETSI TR 122 937 V13.0.0 (2016-01)53GPP TR 22.937 version 13.0.0 Release 13Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following
20、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 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 f
21、or approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for 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.
22、 Introduction For Fixed-Mobile Convergence (FMC), some scenarios require seamless roaming between a GSM/GPRS/3G mobile network and a WLAN. Both networks may be independently authenticated. To maintain the quality of the customer experience, and due to the difference of networks, handovers to support
23、 service continuity may require that the handset is authenticated to both networks simultaneously, for relatively short periods of time. The objective of the present document is therefore to determine the requirements for seamless roaming and service continuity between a GSM/GPRS/3G mobile network a
24、nd a WLAN. An example of a use case for such a study could be where the user, on his way to the office, is having a call on a 3GPP access network using his mobile phone. He then roams onto his office WLAN (and vice versa), while still being on the line and the call is transferred without the user no
25、ticing any interruption to the network served by the WLAN ETSI ETSI TR 122 937 V13.0.0 (2016-01)63GPP TR 22.937 version 13.0.0 Release 131 Scope The present document develops the use cases and requirements for service continuity between a 3GPP network and another network, which can be: - a TISPAN NG
26、N with an IMS, accessed by a WLAN. - an ISP accessed via a WLAN Each access network has its own separate security system and the NOs have a commercial agreement for roaming and handover. The present document considers use cases whereby: Editors Note: Text to be added when use cases are agreed The pr
27、esent document also examines the requirements and implications of: - service aspects: maintaining service quality and service continuity, while roaming between a 3GPP PLMN and an independently-owned WLAN; - security aspects: while roaming between a 3GPP PLMN and a WLAN, in particular when networks m
28、ay be independently authenticated. - UICC aspects, including NAA types, personalisation and ownership. The present document is related to ongoing standardisation efforts in the following areas: - where the WLAN is an I-WLAN , requirements for which are described in 3; - methods for selecting the 3GP
29、P or the non-3GPP access network, requirements for which are described in 2. 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
30、, version 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 o
31、f that document in the same Release as the present document. 1 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 2 3GPP TR 22.912: “Study into network selection requirements for non-3GPP access“. 3 3GPP TS22.234: “ Requirements on 3GPP system to Wireless Local Area Network (WLAN) interworking“.
32、4 3GPP TS 22.011: “Service accessibility“. 5 ETSI TS 102 310: “Smart Cards; Extensible Authentication Protocol support in the UICC“. ETSI ETSI TR 122 937 V13.0.0 (2016-01)73GPP TR 22.937 version 13.0.0 Release 133 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present
33、 document, the terms and definitions given in TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 1. Credentials: Data objects which are used to uniquely identify a subscriber and which are used in se
34、curity procedures. For example, in the case of a USIM the credentials are IMSI and shared-secret Ki. The Milenage customisation parameter OPc can also be regarded also a credential, since it is derived from the Ki and is usually provisioned with the Ki. Credential-Attach: This is a procedure whereby
35、 a credential is used to identify and authenticate a UE and to enrol it in a session with a network or subsystem. Primary NO: The Network Operator which has the commercial relationship with the subscriber and is responsible for billing the subscriber. Secondary NO: A Network Operator that has a comm
36、ercial relationship with the Primary Network Operator by which the SNO provides services to subscribers of the PNO. The relationship could support the seamless handover of services to and from the PNO. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR 21.905 1
37、 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 1. AAA Authentication, Authorisation, Accounting DSL Digital Subscriber Line EAP Extensible Authentication Protocol EPS Evolved Packet System
38、FMC Fixed-Mobile ConvergenceFMCA Fixed-Mobile Convergence Alliance GNAA Generic Network Access Application (not supported on the UICC) NAA Network Access Application (on the UICC) PNM Personal Network Management PNO Primary Network Operator SNO Secondary Network Operator VCC Voice Call Continuity 4
39、Use Cases 4.1 General requirements The subscriber possesses an UE which gives access to WLAN and 3GPP and access networks. The UE shall support functionality to support service continuity when performing handover between the access networks to which it allows access. Handover between networks shall
40、be transparent to the user. ETSI ETSI TR 122 937 V13.0.0 (2016-01)83GPP TR 22.937 version 13.0.0 Release 134.2 Use Case 1 4.2.1 Description Alice is a subscriber whose PNO provides her with home connectivity to DSL via technologies including WLAN. The PNO also provides her with seamless access to it
41、s public WLANs and those of its roaming partners. The PNO is a member of the WiFi Alliance and its infrastructure requires the UE to support EAP-SIM for secure access. The PNO also provides Alice with seamless access to the mobile networks of a SNO and its roaming partners. Her PNOs network uses its
42、 own AAA infrastructure, which was in place before the PNO formed the commercial relationship with its current SNO. The PNO may also provide Alice with multimedia services through an IMS Alice is at home. She wishes to have an Internet multimedia session on her hand-held dual-mode UE. She switches o
43、n the UE and it automatically obtains a secure connection (authenticated and encrypted) to the WLAN of her WLAN provider that being the default network when she is at home. She then connects to the desired Internet multimedia service. If that service is part of the PNO“s IMS, the UE establishes a se
44、cure session with the IMS, and then identifies which public user identities Alice wants to use. Alice needs to undertake a journey to a location in a different town but she wants to carry on with her Internet and/or IMS multimedia session during the journey. She gets into a taxi, which sets off towa
45、rds a local rail station. Within a few seconds, the taxi approaches the limit of Alice“s home WLAN coverage. The UE, which is in automatic network selection mode, connects to the 3GPP mobile network of the SNO and drops the PNOs WLAN connection. Alice does not have to enter a username or password or
46、 PIN for the handover. Alice can see on the UE that the current network has changed, but the identity of the SNO is not visible to her. As far as she is aware, network service is always provided by her PNO. The Internet and/or IMS multimedia session continues uninterrupted. When the taxi approaches
47、the station, the UE comes within range of a public WLAN hotspot of Alice“s PNO (or a roaming partner). Alice“s PNO prefers that Internet and/or IMS access is provided over WLAN rather than the 3GPP network, so the UE automatically moves the Internet and/or IMS multimedia session to the WLAN Again, t
48、he UE indicates that the network has changed, but Alice is otherwise unaware of the change in Network Operator. As the train leaves the station, the UE detects a fall in WLAN signal, and so re-establishes the 3G connection and then drops the WLAN connection. Alice knows from previous experience that
49、 as she stops at various stations along the way, or passes slowly though them, her UE will try to connect to the WLAN hotspots at those stations. She decides that her user experience would be more consistent if she remained connected to the 3GPP network for the duration of the train journey. So, she uses the User Preferred menu function on the UE to select the 3GPP Preferred“ option for the duration of her train journey. When Alice reaches the destination town, she knows that she can get handover with service continuity between WLAN hotspots
