APPARATUS AND METHOD FOR PERFORMING A NETWORK ENTRY PROCEDURE IN A CLOUD CELL COMMUNICATION SYSTEM

摘要

The present invention relates to a network entry procedure execution apparatus in a cloud cell communication system and a method comprising: a process of inspecting the existence of a cloud cell member candidate base station transmitting a downlink synchronization signal which is under a threshold signal strength difference value in which the difference between the signal strength and the downlink synchronization signal transmitted from a master base station is determined in advance; a process of determining the corresponding cloud cell member candidate base station and a final cloud cell member candidate base station cooperated with the master base station when the cloud cell member candidate base station transmitting the downlink synchronization signal is existed; a process of transmitting the access request message including the information for the final cloud cell member candidate base station with the master base station; and a process of receiving an access response message including information for the cloud cell member base station from the master base station. [Reference numerals] (411) Selecting a master base station;(413) Does a cloud cell member candidate base station, which transmits a downlink SCH signal including under difference value A between the threshold SINR and the SINR for a downlink SCH signal in a master base station be existed?;(415) Transmitting an access request message;(417) Executing the other network entry procedure;(419) Determining the final cloud cell member candidate base station;(421) Receiving an access request message;(423) Does an access response message include information for a cloud cell member base station?;(425,429) Executing the other network entry procedure;(427) Executing a uplink synchronization acquisition procedure and beam acquisition procedure;(AA,DD) YES;(BB,CC) NO