Unlike previous generations, the fifth generation mobile wireless network can be deployed in standalone or non-standalone mode. At the initial deployment of 5G, most operators are choosing a non-standalone mode of 5G with dual connectivity to the existing 4G network.
This thesis initially presents the development of the 5G network and the reasons for the standardization of the 5G in non-standalone mode. This is followed by the presentation of 4G network architecture, which is the basis for the operation of the 5G in non-standalone mode. Presented are also standalone and non-standalone 5G architectures. In the case of non-standalone architecture, the most frequently used architectural option 3 and its sub-options, which can be set via various settings of the data radio bearer, are presented in more detail. Practical aspects of deploying different architectural options are also presented.
In the practical part of the thesis, the test environment and the process of establishing dual connectivity are presented first, followed by various settings and test results of displaying the 5G status icon on user devices. At the end of the practical part, test methods and results of different types of non-standalone 5G radio data bearers are presented.