By Pierre Lescuyer (auth.), Frank Bott (eds.)
The common cellular Telecommunication process (UMTS) is the main 3rd new release (3G) cellular communications know-how. The UMTS usual includes approximately three hundred specification records, so this ebook fulfills the true desire for a great, present advent to the world, in line with the necessities specified by the standard.
With complete and updated assurance of the traditional, the publication seems to be on the subject from the perspective of platforms, and covers either the structure and the concepts hired within the UMTS community. The introductory chapters conceal the origins of UMTS and its relation to the opposite 3rd iteration applied sciences, whereas later chapters are extra technical and describe diversified elements of the traditional, akin to: structure, constitution of the radio interface, protocols used, value of the GSM inheritance.
This ebook could be integral to builders, designers, undertaking managers and different telecommunications execs who want an easy-to-read evaluate of this crucial new know-how and a complete consultant to the details of the normal. it's going to even be invaluable for these attending classes on smooth electronic communications and 3G systems.
Read Online or Download UMTS: Origins, Architecture and the Standard PDF
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Extra resources for UMTS: Origins, Architecture and the Standard
The access stratum is then charged by the non-access stratum with establishing the communication route within the access network. The only view that the non -access stratum has of the communication channel used is the Radio Access Bearer (RAB). 5): • the radio bearer, corresponding to the 'radio interface' segment of the RAB; • the Iu bearer, corresponding to the 'Iu interface' segment of the RAB. e. the way in which it will be implemented in the access stratum. For example, the type of radio channel used, the protocols employed and the way they work are known only to the access network.
These two security functions are activated at the start of the call set-up with the subscriber. If either of these procedures fails, the call is rejected. The AuC is coupled to the HLR and contains, for each subscriber, an identification key that allows it to carry out the authentication and encryption functions. Equipment Identity Register (EIR) The EIR is an optional component in GSM networks, intended to combat the theft of mobile terminals. The EIR is in fact a database containing a list, called the black list, of mobiles that are not allowed to access the network.
Notification SAP Just like the GC SAP, the notification SAP collects together services related to the transmission of information on the access interface. The difference lies in the fact that the information transmitted through the Nt SAP is intended only for one or more identified users of the network. The Nt SAP is used, for example, to broadcast paging messages or notification of a conference call. 3 Access points between the access stratum and the non-access stratum. 47 3 UMTS Principles specified in the GSM standard, have not been included in the UMTS standard.
UMTS: Origins, Architecture and the Standard by Pierre Lescuyer (auth.), Frank Bott (eds.)