List of Figures
| 1.1 | Switching matrix in a switching center |
| 1.2 | Necessary software changes to adapt a fixed-line switching center for a wireless network |
| 1.3 | Timeslot architecture of an E-1 connection |
| 1.4 | An SS-7 network with an STP, two SCP databases and three switching centers |
| 1.5 | Comparison of the SS-7, OSI and TCP/IP protocol stacks |
| 1.6 | Establishment of a voice call between two switching centers |
| 1.7 | Enhancement of the SS-7 protocol stack for GSM |
| 1.8 | Comparison of the classic and IP-based SS-7 protocol stacks |
| 1.9 | Interfaces and nodes in the NSS |
| 1.10 | Digitization of an analog voice signal |
| 1.11 | Mobile switching center (MSC) with integrated Visitor Location Register (VLR) |
| 1.12 | The international mobile subscriber identity (IMSI) |
| 1.13 | A terminal program can be used to retrieve the IMSI from the SIM card |
| 1.14 | Creation of a signed response (SRES) |
| 1.15 | Message flow during the authentication of a subscriber |
| 1.16 | Authentication between network and mobile device |
| 1.17 | SMS delivery principle |
| 1.18 | GSM uplink and downlink in the 900-MHz frequency band |
| 1.19 | A typical antenna of a GSM base station. The optional microwave directional antenna (round antenna at the bottom of the mast) connects the base station with the GSM network |
| 1.20 | Cellular structure of a GSM network |
| 1.21 | Sectorized cell configurations |
| 1.22 | A GSM TDMA frame |
| 1.23 | A GSM burst |
| 1.24 | Arrangement of bursts of a frame for the visualization of logical channels in Figure 1.25 |
| 1.25 | Use ... |
