1、 TIA-41.500-E (Revision of TIA-41.D) October 2010 Part 500: Wireless Radiotelecommunications Intersystem Operations Introduction to Signaling Protocols ANSI/TIA-41.500-E-2004 APPROVED: APRIL 20, 2004 REAFFIRMATION: SEPTEMBER 1, 2010 NOTICE TIA Engineering Standards and Publications are designed to s
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22、EGATION OF DAMAGES IS A FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-41-500-E123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960500-1 MAP PROTOCOL ARCH
23、ITECTUREPART 5001 MAP PROTOCOL ARCHITECTUREThe following figure provides a high-level view of the MAP Protocol Architecture.Figure 1 MAP Protocol ArchitectureThe fundamental division within the architecture is between data transfer services and applicationservices. Application services deal with the
24、 transfer of information, with its associated syntax andsemantics. Data transfer services simply move octets between MAP functional entities via asignaling network.In terms of the Open Systems Interconnection (OSI) Reference Model, defined in the ITU X.200series of recommendations, Application Servi
25、ces encompass the Application, Presentation, Session,and Transport layers. Data Transfer Services cover the Network, Data Link, and Physical layers ofthe model (see Figure 2).DATA TRANSFER SERVICESAPPLICATION SERVICESMAP Signaling Node A MAP Signaling Node Binformation transferdata transferSignaling
26、 NetworkDATA TRANSFER SERVICESAPPLICATION SERVICESTIA-41-500-EMAP PROTOCOL ARCHITECTURE123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960500-2Figure 2 OSI Reference Model RelationshipThis Standard specifies a single set of Application Serv
27、ices (see Figure 3) comprised of the ANSITransaction Capabilities specified in ANSI T1.114, along with TIA-41 application-specific servicescalled the Mobile Application Part (MAP). These services are defined in TIA-41-520-E includingthe qualifications, limitations and exceptions on the use of ANSI T
28、1.114 in this Standard.Figure 3 Application ServicesA choice of two sets of Data Transfer Services is allowed in this Standard.One set is based on the X.25 data communications standard (see Figure 4). The relevant X.25standards, as well as the qualifications, limitations and exceptions on the use of
29、 these standards inTIA-41, are specified in TIA-41-510-E.Application LayerAPPLICATION SERVICESPresentation LayerSession LayerTransport LayerNetwork LayerData Link LayerPhysical LayerDATA TRANSFER SERVICESANSI Transaction CapabilitiesANSI Transaction CapabilitiesApplication LayerPresentation LayerSes
30、sion LayerTransport LayerTransaction Capabilities Application Part (TCAP)APPLICATION SERVICESMobile Application Part (MAP)TIA-41-500-E123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960500-3 MAP PROTOCOL ARCHITECTUREFigure 4 X.25-based Data
31、 Transfer ServicesThe other set is SS7-based and is comprised of the SS7 Signaling Connection Control Part (SCCP)plus Message Transfer Part (MTP) (see Figure 5). The qualifications, limitations and exceptions on the use of these standards in TIA-41are specifiedin TIA-41-511-E for ANSI and TIA-41-512
32、-E for ITU-T. Figure 5 SS7-based Data Transfer Services ANSI Transaction CapabilitiesX.25 Network LayerX.25 Data Link LayerX.25 Physical LayerX.25-BASED DATA TRANSFER SERVICESX.25 Signaling NetworkANSI Transaction CapabilitiesMTP Level 3 (part of Network Layer)MTP Level 2 (Data Link Layer)MTP Level 1 (Physical Layer)SS7-BASED DATA TRANSFER SERVICESSCCP (part of Network Layer)SS7 Signaling NetworkTIA-41-500-EMAP PROTOCOL ARCHITECTURE123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960500-4
