GSM switching services and protocols P8
GSM switching services and protocols P8
... of the handover and through transferring the handover decision to the BSS. The GSM handover is thus anetwork-originated handover as opposed to a mobile-originated handover, where thehandover ... categories:² Handover because of more favorable path loss conditions² Mandatory intercell handover² Mandatory intracell handover8.4 Handover1998.2 Location Registration and Location UpdateBefore ... supplementary services is requested or changed, e.g. the currently validtarget number for unconditional call forwarding in the HLR or VLR registers.8 GSM Switching, Services and Protocols: Second...
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Tài liệu GSM Switching, Services and Protocols P8 pdf
... of the handover and through transferring the handover decision to the BSS. The GSM handover is thus anetwork-originated handover as opposed to a mobile-originated handover, where thehandover ... distinguish three categories:² Handover because of more favorable path loss conditions² Mandatory intercell handover² Mandatory intracell handover8.4 Handover199Roaming and Switching 8.1 Mobile Application ... its participation in thehandover decision. The MSC causes the new BSS to prepare a channel for the handover, and frees the handover to the mobile station (handover command), as soon as thereservation...
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GSM switching services and protocols P6
... elements of GSM transmission chain on the physical layer at the air interface GSM Switching, Services and Protocols: Second Edition. Jo È rg Eberspa È cher, Hans-Jo È rg Vo È gel and Christian ... radio channel: source coding and speech processing (Section 6.1), channel coding and burst mapping (Section 6.2), and security related functions, such as encryption and authentication (Section ... other data services are similar. As shown in Table 6.2, for the 4.8 kbit/s and 2.4 kbit/s services, blocks of 60 or 36 bit length arrive every 10 ms. Subsequent blocks are combined and are then...
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GSM switching services and protocols P7
... and logical channels. Furthermore, exchange ofmeasurement and control information for channel monitoring occurs through serviceprimitives.7.4.1.1 Layer 1 Services Layer 1 services of the GSM ... 00101001Assignment failure DCCH MS ! N 00101111Handover access DCCH MS ! N±Handover command DCCH N ! MS 00101011Handover complete DCCH MS ! N 00101100Handover failure DCCH MS ! N 00101000Physical ... the handover procedure, which is also initiated onlyfrom the network side and, for example, becomes necessary if the current cell is left. Incontrast to assignment command,ahandover command...
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GSM switching services and protocols P9
... in a networktransition switching unit and carried as a voiceband signal in the PSTN to the analog terminal.After these introductory remarks, the GSM data and teleservices and their realization ... according to ITU-T standard9.7 Teleservices: Fax227Figure 9.16: Fax adapter in GSM Figure 9.17: Overview of GSM procedure for fax servicesignals in GSM networks are transported in standard ISDN format ... transcoding in the TRAU. From the MSC on, the speech9 GSM Switching, Services and Protocols: Second Edition. JoÈrg EberspaÈcher,Hans-JoÈrg VoÈgel and Christian BettstetterCopyright q 2001 John...
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GSM switching services and protocols P10
... International operation of network management10 GSM Switching, Services and Protocols: Second Edition. JoÈrg EberspaÈcher,Hans-JoÈrg VoÈgel and Christian BettstetterCopyright q 2001 John ... probability, and availability, and it can also be characterized with nontech-nical criteria like ease of operation and comfort of subscriber access or even hot-line and support services. Considering ... response times, etc.), and utilization of network components (hardware and software).The objective is on one hand to ensure a good utilization of resources and onthe other hand to recognize trends...
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GSM switching services and protocols P11
... more ef®cient way and simplify the access to external datanetworks.11 GSM Switching, Services and Protocols: Second Edition. JoÈrg EberspaÈcher,Hans-JoÈrg VoÈgel and Christian BettstetterCopyright ... (and vice versa), whereas in conventional GSM the scope is only between MS and BTS/BSC.As in GSM ciphering, the algorithm A8 generates the Cipher Key Kc from the key Ki and arandom number RAND ... channel (multiple access) and how the assignment of radio resources between circuit-switched GSM services and GPRS services is controlled. Afterward, the logical channels and their mapping onto...
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GSM switching services and protocols P12
... and HTML documents12.2 Overview of GSM Services in Phase 21 GSM is not a closed system that does not undergo any change. The GSM standards arebeing enhanced; and in the current phase of standardization ... and control of services in public networks and to use the idea of dividing the12 GSM ± The Story Goes On284 switching functionality into basic switching functionality, residing in Service Switching Points ... requires a GSM- speci®c version of IN. Similar to the IN approach, GSM de®nes a basic call processingfunction as GSM Service Switching Function (gsmSSF) and a service logic function GSM Service...
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Tài liệu GSM Switching, Services and Protocols P1 pdf
... currently staying and has access to the network. There, the samecommunication services can be used as at home, limited only by the properties of the1 GSM Switching, Services and Protocols: Second ... characteristics and the cellular principle. The understanding of duplex and multi-ple access schemes serves as the basis for understanding GSM technology. Chapter 3introduces the GSM system architecture and ... Hong Kong, and New Zealand. Afterward, GSM has also been introduced in Brunei, Cameroon, Iran, South Africa, Syria, Thailand, USA and United Arab Emirates. Whereas the majority of the GSM networks...
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Tài liệu GSM Switching, Services and Protocols P2 pdf
... Simpli®ed two-path model of radio propagation GSM Switching, Services and Protocols: Second Edition. JoÈrg EberspaÈcher,Hans-JoÈrg VoÈgel and Christian BettstetterCopyright q 2001 John ... multiple of its original bandwidth. Typically, spreading factors are between 10 and 1000; they generate a broadband signal for transmission from the narrowband signal, and this is less sensitive ... systems and is also used in digital systems. For the communication between mobile and base station,the available frequency band is split into two partial bands, to enable simultaneous sendingand...
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