GSM Networks : Protocols, Terminology, and Implementation - Chapter 12 pptx

... large arrows). 260 GSM Networks: Protocols, Terminology, and Implementation BTS TRX BTS TRX BSC Figure 12. 13 The intra-BSC handover. 264 GSM Networks: Protocols, Terminology, and Implementation The ... functionality between the 244 GSM Networks: Protocols, Terminology, and Implementation 236 GSM Networks: Protocols, Terminology, and Implementation...

Ngày tải lên: 13/08/2014, 02:21

... Interface and A-Interface 287 13.5.1 Most Important Error Messages 291 x GSM Networks: Protocols, Terminology, and Implementation A word on coding of parameters and messages should be added here: Coding ... interface and are presented as shown in Figures 1.4(a) through 1.4(e). 10 GSM Networks: Protocols, Terminology, and Implementation The following factors were ma...

Ngày tải lên: 13/08/2014, 02:21

... 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,...

Ngày tải lên: 13/08/2014, 02:21

... 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,...

Ngày tải lên: 13/08/2014, 02:21

... 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 External connections Figure ... detail to be a standalone entity. The only major function assigned to the AuC is to calculate and provide the authentication-triplets, that 32 GSM Networks: Protocols, Terminology,...

Ngày tải lên: 13/08/2014, 02:21

... to the lower layers, the Transport Layer performs end-to-end data control. The Transport Layer 44 GSM Networks: Protocols, Terminology, and Implementation • Telephone systems are used for many ... layer does not care 40 GSM Networks: Protocols, Terminology, and Implementation Physical layer Data link layer Network layer Network node A Network node CNetwork node B Peer-to...

Ngày tải lên: 13/08/2014, 02:21

... point identifier (SAPI) = 0 is two, and the number of unacknowledged frames for SAPI = 62 and for SAPI = 63 is one. 58 GSM Networks: Protocols, Terminology, and Implementation Address field 16 bit Control ... frames from the same TRX. 70 GSM Networks: Protocols, Terminology, and Implementation 0123 4567 Bit 1111P/F101 Figure 6.22 Control field of an XID frame. The Ab...

Ngày tải lên: 13/08/2014, 02:21

... on 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 ... N201. 104 GSM Networks: Protocols, Terminology, and Implementation Table 7.2 Possible Values of SAPI on the Air-Interface SAPI (Decimal) Meaning 0 RR, MM, CC 3...

Ngày tải lên: 13/08/2014, 02:21

... 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. ... in Figure 8.2, which shows the flags that mark beginning and end (as we have seen in LAPD), 126 GSM Networks: Protocols, Terminology, and Implementation SP...

Ngày tải lên: 13/08/2014, 02:21

... SCCP=> Routing label: OPC/DPC/SLS SCCP-MT 04 RLSD==> DLR / SLR Release cause EO End of Optional parameters = Signal Unit: MSU BSN: 112 BIB: 1 FSN: 100 FIB: 1 LI: 14 SIO-Indicator: (SCCP) Signalling ... 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 : 32A402...

Ngày tải lên: 13/08/2014, 02:21