GSM Networks : Protocols, Terminology, and Implementation - Chapter 5 docx

... Implementation 77 66 11 22 33 44 55 User data User data Header Header 77 2 2 55 33 4 4 7 7 7 7 6 6 7 7 6 5 5 6 6 6 6 6 6 55 55 55 7 7 7 7 7 7 44 44 44 33 33 22 6 5 7 4 3 2 Physical layer Data link ... information as an EST_IND message toward the BSC, 46 GSM Networks: Protocols, Terminology, and Implementation 5 The OSI Reference Model 5. 1 Reasons for Standardizati...

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... between MAP and TCAP in the NSS. This second section focuses on the processes and procedures within MAP itself; the 208 GSM Networks: Protocols, Terminology, and Implementation Invoke-component ... services of SCCP (PCs 0 and 1). The consequence is that SCCP-UDT messages are the only candidates for the transport of TCAP 186 GSM Networks: Protocols, Terminology, and...

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... Transport Layer 44 5. 6 .5 Layer 5: The Session Layer 45 5.6.6 Layer 6: The Presentation Layer 45 5.6.7 Layer 7: The Application Layer 46 5. 7 Comprehension Issues 46 5. 7.1 An Analogy: The Move to Europe ... in the NSS 244 12 .5 Handover 251 12 .5. 1 Measurement Results of BTS and MS 251 12 .5. 2 Analysis of a MEAS_RES/MEAS_REP 255 12 .5. 3 Handover Scenarios 256 13 Qual...

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... a car phone and in a handheld telephone. 13 16 GSM Networks: Protocols, Terminology, and Implementation Table 2.1 (continued) Parameter Remarks Security related data Algorithm A3 and A8 (m/f) Required ... tools for network opera- tors, to monitor coverage and evaluate the behavior of handover as a customer would experience it. 18 GSM Networks: Protocols, Terminology,...

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... assignment and 26 GSM Networks: Protocols, Terminology, and Implementation TM TCE TM TCE TM TCE Switch matrix TMTCE TMTCE TMTCE DB Central module Central functions, clock distribution OMC A-interface Abis-interface Figure ... abandoned as sites for antennas shortly after they were brought into service at the initial network startup. 22 GSM Networks: Protocols, Terminology,...

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... 33 subscriber A: Ki 123 456 78 subscriber B: Ki 234 156 70 subscriber C: Ki 98 753 013 = = = HLR GSM SIM . . . . . GSM SIM . . . . . GSM SIM . . . . . Ki 234 156 70= Ki 123 456 78= Ki 98 753 013= Figure 4.2 ... and Implementation EIR HLR VLRVLR E-interface MSC G-MSC B-interface BSSs G-interface C-interface C-interface F-interface F-interface D-interface D-interface B-interface Exter...

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... channel characteristics. 74 GSM Networks: Protocols, Terminology, and Implementation Channel type 04.08 - data (RSL) max. 255 octet 8 bit 8 bit Channel number identifier (01) Message type 8 bit 00000001 7 654 3 210 Message discriminator 8 ... Advance (Distance between MS and BTS) 00000000 Figure 6.29 Format of a CHAN_RQD message (taken from GSM 08 .58 ). 78 GSM Networks:...

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... different values over the Air-interface than on 102 GSM Networks: Protocols, Terminology, and Implementation 112 GSM Networks: Protocols, Terminology, and Implementation Table 7 .5 (continued) ID (Hex) ... turn indicates the 92 GSM Networks: Protocols, Terminology, and Implementation 2046 204720 452 044 0 0 01234 0 1 2 50 4948 1 2 25 24 56 7 1 2 3 4 47 48...

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... examples of a SLTM and a SLTA message. 132 GSM Networks: Protocols, Terminology, and Implementation in Layer 3 that automatically detect error situations and are able to try to cor- rect them autonomously. ... outage. STP STP STP SP SP SP SP SP SP Figure 8. 15 SS7 network in which a link has failed. 136 GSM Networks: Protocols, Terminology, and Implementation Nr. 1...

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... Code: 5- 2 2 5- 4 (OPC) Originating Point Code: 5- 2 2 4-0 (SLS) Signaling Link Selection: 5 RELEASED Destination Local Reference : 803A05h Source Local Reference : 32A402h Release Cause cause : 15 = ... Figure 9 .5 presents the general format of a SCCP message. SCCP messages consist of the following parts (refer to Figures 9.4 and 9 .5 ): 156 GSM Networks: Pr...

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