Communication system

摘要

The present invention has an object to provide a communication system capable of appropriately providing services while improving a data rate using carrier aggregation. In Step ST1408, of a cell1 and a cell2 of a base station A, RRC connection is established between the cell1 and a UE, and the cell1 becomes a primary cell (PCell). Then, in Step ST1418, the cell1 determines to configure the cell2 as a secondary cell (SCell) to be aggregated with the own cell. Then, the cell1 notifies the UE of the above in Step ST1419. Upon this notification, the operation of restricting access to the cell2 from the UE is stopped by an MME, and thereafter, communication between the UE and the cell2 is started in Step ST1422.

主权项

1. A communication system comprising a communication terminal device, a base station device configured to perform radio communication with said communication terminal device, and a host node device that restricts the connection between said communication terminal device and said base station device, wherein
said base station device provides a plurality of cells formed of component carriers having different frequencies, said base station device aggregating two or more cells of said plurality of cells and transmitting and receiving component carriers of the aggregated cells in parallel to perform radio communication with said communication terminal device, said plurality of cells include a cell for specific subscribers that specifies a connectable communication terminal device, upon establishment of radio connection between any one of said plurality of cells and said communication terminal device, a connected cell configures any of other cells as an aggregable cell that is allowed to be aggregated with the connected cell, said connected cell being a cell in which radio connection with said communication terminal device has been established, and upon said aggregable cell being configured by said connected cell:
said host node device stops an operation of restricting access to said aggregable cell; and said communication terminal device stops an operation of restricting access to said aggregable cell based on cell information being information related to said cell for specific subscribers held in advance.