Handoff method between the microcell and macrocell in the hierarchical cell structure

摘要

(57) Abstract You grasp with the computer where the program because hand off method and its method in the radio communication system are made to actualize is recorded and you grasp with the computer where the program because method and its method of doing hand off with macro cell and the micro cell in regard to possible record medium, especially, in the hierarchical cell structure of the radio communication system are made to actualize is recorded and regard possible record medium. As for this invention, in order macro cell and to the micro cell (pico- cell) for frequency allotment (FA) to differ with identical service zone in the method of doing the idling hand off to the micro cell (pico- cell) from macro cell in hierarchical cell structure, 3rd you verify that it is the hierarchical cell making use of the information of cell constitution of the contiguity base station which the aforementioned mobile station which from 1st step and the base station which form the hierarchical cell receives service to the mobile station with information of cell constitution of contiguity base station and 2nd step and the macro cell which transmit the false noise (PN) cord/code receivesStep and, searching the false noise (PN) cord/code of the micro cell periodically, verifying, whether or not it is above value (T#ADD) of the base station pilot strength the value we should be satisfied because base station of contiguity set enters into candidacy set, it is above ratio (Ec/Io) of the pilot energy which between one false noise tip/chip period for the entire power spectral density within reception bandwidth of macro cell is accumulated, it includes with the 4th step which does idling hand off in the micro cell.