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Analysis of parameters and communication protocols on radio interface of UMTS networks
Plhák, Jan ; Skořepa, Michal (referee) ; Novotný, Vít (advisor)
These times the third generation cellular networks are getting in use increasingly and they dramatically exceed the parameters of second generation networks. Third generation networks are in contrast to older generations data-oriented, providing better maintenance in data and multimedia services. The most widespread third generation network is the UMTS, designed as succesor of GSM network. Master’s thesis is focused on parameters and communication protocols of radio interface of UMTS network. Parameters of radio interface affect the behaviour of mobile terminal through utilization of network services. This thesis describes individual protocols of radio interface and individual procedures, which the mobile terminal have to perform through its staying in the cell. Theoretical part of this thesis considers description of the UMTS network and individual procedures and parameters. Practical part is focused on measuring the radio interface and individual procedures in real UMTS networks. Some procedures are simulated in network simulation software. This thesis includes a lab task focused on this thema.
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Effect of softhandover function on effectivity of using radio sources in UMTS
Plhák, Jan ; Lambertová, Petra (referee) ; Novotný, Vít (advisor)
Bachelor’s thesis is focused on soft handover procedure in the UMTS network and its impact on the function of this network. Soft handover function allows continuous transfer of data flows, when the mobile station is crossing the border between areas which are controlled by different basic stations. This function has also impact on the performance and capacity of the whole network. This thesis describes the features of the UMTS network, soft handover principles, differences between various types of handovers and focuses on the mechanisms of the soft handover in detail. There have been several scenarios of handover procedure created in network simulation software and have been confirmed features of this function, that allows use of the lower transmission powers. On the other hand the soft handover burdens radio resources more than hard handover because of multipath propagation of the signal. To achieve the greatest soft handover gain, parameters of the network have to be set properly.
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Effect of softhandover function on effectivity of using radio sources in UMTS
Plhák, Jan ; Lambertová, Petra (referee) ; Novotný, Vít (advisor)
Bachelor’s thesis is focused on soft handover procedure in the UMTS network and its impact on the function of this network. Soft handover function allows continuous transfer of data flows, when the mobile station is crossing the border between areas which are controlled by different basic stations. This function has also impact on the performance and capacity of the whole network. This thesis describes the features of the UMTS network, soft handover principles, differences between various types of handovers and focuses on the mechanisms of the soft handover in detail. There have been several scenarios of handover procedure created in network simulation software and have been confirmed features of this function, that allows use of the lower transmission powers. On the other hand the soft handover burdens radio resources more than hard handover because of multipath propagation of the signal. To achieve the greatest soft handover gain, parameters of the network have to be set properly.
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Analysis of parameters and communication protocols on radio interface of UMTS networks
Plhák, Jan ; Skořepa, Michal (referee) ; Novotný, Vít (advisor)
These times the third generation cellular networks are getting in use increasingly and they dramatically exceed the parameters of second generation networks. Third generation networks are in contrast to older generations data-oriented, providing better maintenance in data and multimedia services. The most widespread third generation network is the UMTS, designed as succesor of GSM network. Master’s thesis is focused on parameters and communication protocols of radio interface of UMTS network. Parameters of radio interface affect the behaviour of mobile terminal through utilization of network services. This thesis describes individual protocols of radio interface and individual procedures, which the mobile terminal have to perform through its staying in the cell. Theoretical part of this thesis considers description of the UMTS network and individual procedures and parameters. Practical part is focused on measuring the radio interface and individual procedures in real UMTS networks. Some procedures are simulated in network simulation software. This thesis includes a lab task focused on this thema.
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