Tài liệu GSM Roaming ppt

Ngày tải lên: 19/01/2014, 22:20

... period, GSM grow up with breathtaking speed, in terms of users, of countries to introduce GSM, of networks, of variety of services offered to the users and of applicable frequency bands, and the GSM ... Consolidation of GSM Phase 1 In the years 1989–1992, the main focus of activities in GSM and PT12 was the consolidation of phase 1 specifications in order to enable the roll-out of the...

Ngày tải lên: 15/12/2013, 05:15

... consistent. GSM and UMTS: The Creation of Global Mobile Communication470 14 See TDoc GSM 222/88. 15 See TDoc GSM 482/89 rev2. 16 Cf. for example TDoc GSM 222/88 and TDoc GSM 227/88 at GSM# 20. 17 See ... codec and the adaptive multi-rate codec; † localization; † global roaming between GSM 900, GSM 1800, GSM 1900 and also inter-system roaming, for example with mobile satel...

Ngày tải lên: 15/12/2013, 05:15

... are: † GSM Europe † GSM Asia Pacific GSM and UMTS: The Creation of Global Mobile Communication502 † GSM Arab World GSM † GSM Russia GSM † GSM North America † GSM South America † GSM Africa † GSM ... leadership and direction for the GSM industry. The latest information on the GSM Association can be found at the GSM Association information centre, GSM World at www.g...

Ngày tải lên: 15/12/2013, 05:15

... E b = I 0 f ( r ) PDFofanMSbeinginaringofarea2πrdr f ( r j = r  σ ) expectation of 10 ζ = 10 with the constraint function φ ( ζ  r = r j ) 285 GSM, cdmaOne and 3G Systems. Raymond Steele, Chin-Chun Lee and Peter Gould Copyright © 2001 John

Ngày tải lên: 23/12/2013, 17:15

... some new GSM- speci®c performance characteristics. In Phase 2, which was standardized in 1996, there are some 4.3 Supplementary Services 53 Table 4.4: Overview of GSM supplementary services (GSM Phase ... 0-470-84174-5 For telecommunication services, the GSM standard includes agreements of target times for their market introduction. This fact is especially important, since GSM is an i...

Ngày tải lên: 23/12/2013, 17:15

... data between differ- ent GSM networks is also guaranteed without problems. 7.3.2 Transport of User Data in the Signaling Plane In the signaling plane (control plane) of the GSM architecture, one ... (SM-TP) which uses the services of the signaling protocols within the GSM network. Transport of these messages outside of the GSM network is not de®ned. For example, the SMS-SC could be di...

Ngày tải lên: 20/01/2014, 23:20

... networks do not know roaming, only outgoing data calls are possible. 9.7 Teleservices: Fax In the following, we brie¯y explain the realization of the GSM fax service. The GSM standard considers ... Fax 227 Figure 9.16: Fax adapter in GSM Figure 9.17: Overview of GSM procedure for fax service Data Communication and Networking 9.1 Reference Con®guration GSM was conceived in accordanc...

Ngày tải lên: 20/01/2014, 23:20

... requires a GSM- speci®c version of IN. Similar to the IN approach, GSM de®nes a basic call processing function as GSM Service Switching Function (gsmSSF) and a service logic function GSM Service ... transport technology. 12 GSM ± The Story Goes On 296 Figure 12.17: Evolution steps from GSM to UMTS 12.2 Overview of GSM Services in Phase 21 GSM is not a closed system that does n...

Ngày tải lên: 20/01/2014, 23:20

... some new GSM- speci®c performance characteristics. In Phase 2, which was standardized in 1996, there are some 4.3 Supplementary Services 53 Table 4.4: Overview of GSM supplementary services (GSM Phase ... 0-470-84174-5 For telecommunication services, the GSM standard includes agreements of target times for their market introduction. This fact is especially important, since GSM is an i...

Ngày tải lên: 26/01/2014, 12:20