1、 ETSI TR 103 269-1 V1.1.1 (2014-07) TETRA and Critical Communications Evolution (TCCE); Critical Communications Architecture; Part 1: Critical Communications Architecture Reference Model TECHNICAL REPORT ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)2Reference DTR/TCCE-04189 Keywords Architecture, Model ET
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7、e foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2014. 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 fo
8、r 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 103 269-1 V1.1.1 (2014-07)3Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g
9、32.1 Normative references . 5g32.2 Informative references 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 Architectural Requirements 6g35 Critical Communication System Architecture 6g35.1 CCS Reference Model 6g35.2 Interfaces 9g35.2.1 1 IP Core Network - IP Termin
10、al interface 9g35.2.2 2 Infra CCA - IP Core Network interface 9g35.2.3 3 IP Terminal to Mobile CCA interface . 10g35.2.4 4 Infra CCA to Mobile CCA interface . 10g35.2.5 5 Infra CCA to Application interface . 10g35.2.6 6 Mobile CCA to Mobile Application Interface . 10g35.2.7 7 Application to Applicat
11、ion interface . 10g35.2.8 8 Inter CCA interface . 10g35.2.9 8bis CCA to Legacy PMR interface . 11g35.2.10 9 Core Network to Core Network interface . 11g35.2.11 10 IP Terminal to IP Terminal interface 11g35.2.12 11 Mobile CCA to Mobile CCA interface . 11g35.2.13 11bis Mobile CCA to Repeater CCA inter
12、face 11g35.2.14 12 Infra CCA to Relay CCA interface . 11g35.2.15 13 Mobile CCA to Relay CCA interface 11g36 Services provided by the CCA . 11g36.1 Call Services (Real Time Conversational Services) . 12g36.2 Session Services (Real Time Streaming) 12g36.3 Professional Supplementary Services . 13g36.4
13、Data Services (non-Real Time) 13g36.5 Application Registration Services 14g37 Roaming and interoperability . 15g37.1 Roaming aspects . 15g37.2 Interoperability between CCAs 15g37.3 Interoperability between UE CCAs for Proximity Services . 15g37.4 Interoperability with legacy systems 16g38 Management
14、 services . 16g38.1 Management of Mission Critical services for professional users . 16g38.2 QoS management . 16g39 Security aspects 17g3History 18g3ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)4Intellectual Property Rights IPRs essential or potentially essential to the present document may have been decl
15、ared to ETSI. The information pertaining to these essential IPRs, 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
16、 is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/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 ET
17、SI 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 This Technical Report (TR) has been produced by ETSI Technical Committee TETRA and Critical Communications Evolution (TCCE). Modal verbs terminology In the present d
18、ocument “shall“, “shall not“, “should“, “should not“, “may“, “may not“, “need“, “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 ETS
19、I deliverables except when used in direct citation. ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)51 Scope The present document describes an architecture that will allow Critical Communications applications to operate across a broadband IP network. The IP network may be a wireless network, for example, a 3
20、GPP specified LTE network. The various interfaces and reference points that comprise the architecture are detailed within the present document together with a brief outline of some of the most important services that the architecture supports. The interfaces described include those relevant to a net
21、work to terminal application, a terminal to terminal application, and network to terminal application via a relay terminal. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited
22、 version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks in
23、cluded in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references The following referenced docum
24、ents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TS 122 011: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Service accessibility (3GPP TS 22
25、.011)“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: call: a set of exchanges of information between two or more users that takes place in a conversational service Critical Communication Application (CCA): applic
26、ation providing professional communication services to critical communication users over broadband IP networks, e.g. LTE networks, and to legacy professional networks Critical Communication System (CCS): the whole system that is providing Professional Communication Services to Professional Users NOT
27、E: The CCS may include Access Network, Core Network, Control Rooms and Applications. professional operator: operator in charge to provide Critical Communication Services to Professional Users (Public Safety users, Rail Users, Utility users, other professional users) ETSI ETSI TR 103 269-1 V1.1.1 (20
28、14-07)6session: set of information sent from one user to one or more other users outside a Conversational Service 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ARP Allocation and Retention Priority CCA Critical Communication Application CCS Critical C
29、ommunication System DMR Digital Mobile Radio EPC Evolved Packet Core GSM-R Global System for Mobile communication for Railway application HSS Home Subscriber Server LMR Land Mobile Radio LTE Long Term Evolution MNO Mobile Network Operator MVNO Mobile Virtual Network Operator PMR Professional Mobile
30、Radio or Private Mobile Radio QCI QoS Class Identifier QoS Quality of Service SLA Service Level Agreement UE User Equipment 4 Architectural Requirements In order to satisfy the Critical Communication User requirements the Critical Communication System: provides generic multimedia individual and grou
31、p services for Professional Communication to the Application layer (Control Rooms, Localization Applications and Multimedia Applications); addresses several professional markets including: Public Safety, Railway, Utilities; has full control of user profiles; has full control of security level; suppo
32、rts interworking with legacy Professional Networks (TETRA, TETRAPOL, DMR, GSM-R, P25, etc.); provides mechanisms ensuring the required level of resiliency; controls the resources usage according to users and communications priorities; supports efficient use of features such as broadcast transport an
33、d/or QoS management when these are available. This is typically the case when the broadband access is an LTE network. supports the ability to connect one or more broadband networks to a CCA and allows multiple CCAs to be connected to a broadband network. 5 Critical Communication System Architecture
34、5.1 CCS Reference Model The Critical Communication System architecture model considers the following aspects: services and facilities that are provided to professional users; reference points / interfaces for the user plane and control plane between the CCA, Core IP Network(s) (e.g. LTE network) and
35、 legacy professional networks; ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)7 reference points / interfaces for the user plane and control plane between the CCA and Application Layer; reference points / interfaces for the user plane and control plane between the CCAs on terminals (e.g. LTE UEs) for Proxim
36、ity scenarios; reference points /interfaces to the 3rdparty application layer functions in the terminal and CCA; The performance and security aspects of the architecture are also important considerations. To meet the Mission Critical requirements, the complete architecture of the Critical Communicat
37、ion System, CCS has to be considered, not only the Critical Communication Application (CCA). The CCS model also includes also the underlying IP Core Network (e.g. LTE EPC) and other functions. The CCS Reference Model considered is the following. Figure 1: CCS Reference Model In addition, derived ref
38、erence models apply to the Direct Mode of Operations - see figure 2, to the Terminal to Terminal Repeater - see figure 3, and to the Terminal to Network Relay - see figure 4. ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)8TerminalIP terminale.g. LTE UECritical Communications Application(Mobile CCA)Mobile A
39、pplications36TerminalMobile Applications361011IP terminale.g. LTE UECritical Communications Application(Mobile CCA)7Figure 2: Direct Mode of Operations Reference Model Figure 3: Terminal to Terminal Repeater Reference Model ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)9Figure 4: Terminal to Network Relay
40、Reference Model 5.2 Interfaces 5.2.1 1 IP Core Network - IP Terminal interface This interface is specified according to the network protocols of the underlying IP network. Where the underlying network is LTE, it consists of the 3GPP specified LTE UE to EPC interfaces. 5.2.2 2 Infra CCA - IP Core Net
41、work interface The objective of this interface is to allow interworking between an Infrastructure CCA and IP Core Networks from different manufacturers. This interface is specified according to the network protocols of the underlying IP network. Where that underlying network is an LTE EPC, it consis
42、ts of existing Rx and SGi interfaces, plus the MB2 interface developed in the GCSE-LTE work item from 3GPP Release 12, to allow use and control of LTE broadcast bearers This interface may also provide additional reporting information from the IP network (e.g. location, charging or some other functio
43、n). ETSI ETSI TR 103 269-1 V1.1.1 (2014-07)10One CCA may make use of more than one broadband IP network. The broadband networks may be of the same type, for example in the case where multiple 3GPP LTE networks are used to provide access to one CCA. The broadband networks may also be of mixed network
44、 types, such as a mixture of 3GPP LTE and WiFi networks which provide service to the same CCA. Multiple CCAs may also share the same broadband IP access network. Therefore there can be a many-to-many relationship of CCAs and broadband IP access networks. 5.2.3 3 IP Terminal to Mobile CCA interface T
45、his interface relies on the services available from the IP network terminal. In an LTE environment, it utilizes the interfaces provided by the UE to any application and may evolve to include developments related to GCSE-LTE work item from 3GPP Release 12. This interface itself is not fully standardi
46、zed since it is dependent on the terminal implementation and operating system. 5.2.4 4 Infra CCA to Mobile CCA interface The objective of this interface is to allow interoperability between a CCA infrastructure and terminals from different manufacturers. This interface provides similar functionality
47、 to existing digital PMR Layer 3 Air Interface messages, supporting, but not limited to, user registration, setup and control of individual and group communications, media transfer and management and short data transport. 5.2.5 5 Infra CCA to Application interface The objective of this interface is
48、to allow easy integration of Applications in a CCA environment, and portability of those applications to CCAs from different manufacturers. This interface supports for instance the dispatcher functionalities. This interface is made of two main components: A Call interface, to provide control of sess
49、ions (C-Plane) and of media transport (U-Plane) within a communication. This interface may be similar to a Dispatch interface in existing PMR systems, extended to Multimedia. NOTE: A single communication session can be an organized set of one or more communications used to transport the same information to or from one or several mobiles. Independent sessions implies that there can be several separate communications taking place between different sets of parties which can be accessed through this interf
