1、 TSB-4973.000 May 2013Broadband Data Protocol Standards Overview NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and as
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22、reword (This foreword is not part of this bulletin.) This Telecommunications Systems Bulletin (TSB) is being created and will be maintained by the Broadband Data Systems Engineering Subcommittee (TR-8.8) of the TIA Mobile and Personal Radio Standards Engineering Committee (TR-8). Participating in th
23、e development of this TSB were radio equipment manufacturers and wireless broadband user representatives from the public safety and business/industrial user communities. This TSB provides an overview description of the TIA documents being created to describe protocols for interoperable applications
24、that will be available over wireless broadband systems. This TSB may change as additional TIA documents describing the protocols for such interoperable applications are created, and when existing TIA documents are revised. This TSB and the TIA documents described herein are being created and publish
25、ed because of the urgent need to assure standardized protocols are available if the need for interoperable applications over wireless broadband systems in the public safety and business/industrial communities is to be fulfilled. TSB-4973.000 ii Patent Identification The readers attention is called t
26、o the possibility that compliance with this or any TIA standard may require the use of one or more inventions covered by patent rights. By publication of those standards and bulletins, if any, no position is taken with respect to the validity of those claims or any patent rights in connection therew
27、ith. The patent holders so far identified have, however, filed statements of willingness to grant licenses under those rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. Details may be obtained from the publisher. The following patent hold
28、ers and patents have been identified in accordance with the TIA intellectual property rights policy: No patents are currently identified TIA shall not be responsible for identifying patents for which licenses may be required by this document or for conducting inquiries into the legal validity or sco
29、pe of those patents that are brought to its attention. Acknowledgements Wi-Fi is a registered trade mark of the Wi-Fi Alliance. TSB-4973.000 iii TABLE OF CONTENTS Foreword i Patent Identification ii Acknowledgements . ii 1 Introduction . 1 2 Abbreviations 3 3 Informative References . 4 4 Architectur
30、al Models 5 4.1 General Reference Model . 5 4.1.1 Functional Elements 8 4.1.1.1 UT Functional Elements . 8 4.1.1.2 IP Transport Functional Element 8 4.1.1.3 Service IP Transport Functional Elements . 8 4.1.1.4 Service Network Functional Element . 8 4.1.1.5 LMR Networks Functional Element . 9 4.1.2 R
31、eference Points . 9 4.1.2.1 Ubb Reference Point . 9 4.1.2.2 Ubd Reference Point . 9 4.1.2.3 Ubs Reference Point . 10 4.1.2.4 Usn Reference Point . 10 4.1.2.5 Eu Reference Point . 10 4.1.2.6 En Reference Point . 10 4.1.2.7 Rbb Reference Point . 11 4.1.2.8 Rbs Reference Point 11 4.1.2.9 G Reference Po
32、int . 11 4.1.2.10 Glmr Reference Point . 11 4.2 Model Protocol Stacks 12 5 Broadband Data Standards Suite 16 5.1 Document Tables 17 5.1 Document Descriptions . 18 5.1.1 Description of the General Information Category (0Mx) . 18 5.1.1.1 TSB-4973.000 Broadband Data Protocol Standards Overview (this do
33、cument) . 18 5.1.2 Description of the Systems and Supporting Data Category (1Mx) 18 5.1.3 Description of the Services and Applications Category (2Mx) 18 5.1.4 Description of the Compliance Assessment Recommendations Category (9Mx) 18 TSB-4973.000 iv LIST OF TABLES Table 1: Document Revision History
34、. v Table 2: “NM” Suffix Characters . 16 Table 3: TIA-PN.0Mx General Information series . 17 Table 4: TIA-PN.1Mx Systems and Supporting Data series 17 Table 5: TIA-PN.2Mx Services and Applications series 17 Table 6: TIA-PN.9Mx Compliance Assessment Recommendations 17 LIST OF FIGURES Figure 1: Protoc
35、ol Concept . 2 Figure 2: General Reference Model 7 Figure 3: Example UT 8 Figure 4: VPN implications for En. 11 Figure 5: Model for Protocol Stacks . 12 Figure 6: UT-to-UT Protocols (Eu) 13 Figure 7: UT-Service Protocols (En) 14 Figure 8: UT-Service Protocols (En) Client Relay 15 Figure 9: Inter-Ser
36、vice Protocols (G) . 15 TSB-4973.000 v DOCUMENT REVISION HISTORY Table 1: Document Revision History Version Date Description 1.5 23-April-2013 (Hengeveld) Changes in response to ballot comments. 1.4 6-Feb-2013 (Hengeveld) Final comment resolutions from 5-Feb-2013 conference call. Ready for ballot. 1
37、.3 1-Feb-2013 (Hengeveld) Updated in resolution of Cassidian comments. 1.2 17-May-2012 (Hengeveld) Updated per conference call. Added flow to illustrate potential QOS and other service control flows to network. Indication that standard describes layer 3 and above; Illustrate LMR on Reference diagram
38、; Add Ubd (Direct mode). 1.1 March 2012 (Hengeveld) Updated to resolve Motorola comments. 1.0 25-Jan-2012 Initial draft submitted to TR-8.8 TSB-4973.000 1 1 Introduction This document provides an overview of the structure of the TIA standards describing protocols for interoperable communications ove
39、r wireless broadband systems. In 2011 the Emergency Response Interoperability Center identified a set of “Applications Important to Public Safety“ for the 700 MHz National Public Safety Broadband Network (Ref. (1). Specifically1: Emergency Function Global Positioning Information CMAS-Public Warning
40、Incident Management Tools Welcome Page Internet Access Virtual Private Networking Text Messaging Video File Transfer Telemetry Push-to-Talk Voice The standards described herein provide standardized protocols for a subset of the recommended applications listed above. Often, the TIA documents provide
41、specific operating profiles for existing protocols codified by TIA or other standards development organizations (SDOs) in order to leverage existing standards to the greatest possible degree consistent with satisfying the needs of the public safety community and other users of wireless broadband sys
42、tems. The TIA standards do not define applications, but rather define protocols that can be used by applications to meet the needs of public safety and others. Generally, these standards specify the upper layers (5-7 of the OSI model) and identify the transport layer (layer 4) to be used for the pro
43、tocol. To facilitate development of a diverse set of applications by a multiplicity of vendors that are nevertheless interoperable, this suite of TIA standards defines protocols for the various required services. Furthermore, because the fusion of information from various content services will be an
44、 important part of public safety applications, TIA will standardize an underlying grammar and semantics for commonly used information elements. Application protocols that share such information elements, will greatly simplify the development of sophisticated applications that span multiple services.
45、 Figure 1 illustrates this concept. Here a public safety user accesses a variety of content services 1Ref. (1 pp. 6-10) TSB-4973.000 2 (i.e. application protocols) that all share data representations for the “context“ of the service. This “metadata“ can include location information (e.g. where a par
46、ticular video was shot), security data (e.g. a series of digital signatures to prove chain of custody), incident tags, and a variety of other common data. Figure 1: Protocol Concept TSB-4973.000 3 This document is organized as follows: Section 2 contains a list of abbreviations used in this document
47、. Section 3 contains a list of references. Section 4 describes an architectural model for the standards, and Section 5 summarizes the structure and nomenclature of the series of standards documents. 2 Abbreviations 3GPP 3rdGeneration Partnership Project En UT-Service application protocol reference p
48、oint ERIC Emergency Response Interoperability Center Eu UT-UT application protocol reference point FCC Federal Communications Commission G Service-Service application protocol reference point Glmr Reference point for application layer protocols between service networks and LMR networks. IP Internet
49、Protocol LTE Long Term Evolution NAT Network Address Translation NPSBN National Public Safety Broadband Network OSI Open Systems Interconnection PKI Public Key Infrastructure PSAC Public Safety Advisory Committee SDO Standards Development Organization TCP Transport Control Protocol Ubb UT to NPSBN transport reference point Ubd UT to UT direct mode interface Ubs NPSBN to service network transport reference point UDP User Datagram Protocol UT User Terminal URI Uniform Resource Identifier Usn Inter-service network transport reference point VPN Virtual Priva
