重配置环境下CPC的研究与仿真

As globalization penetrates in all fields of human initiative, the world of telecommunications is currently undergoing some radical changes, in order to meet the continuously increasing user demands. In the context of heterogeneous radio network environment, it is necessary for reconfigurable radio terminals to be able to initiate a new user session to set the conditions allowing a connection to the most suitable access point of the most appropriate Radio Access Technology (RAT). The E2R project is pursing research on the definition of the most appropriate distribution of intelligence and functionalities between end-users terminals and network, in the context of B3G heterogeneous environment. E2R is currently developing concepts and solutions for a Cognitive Pilot Channel (CPC), encompassing both in-band/out-band and downlink/uplink functionalities. CPC could be understood as an assistant method in the process of network selection. Users get network information through CPC and complete the whole selection process with networks. Due to the relationship between CPC and network selection, this paper will also introduce some algorithms that could be used in the network selection.