| 摘要 |
PROBLEM TO BE SOLVED: To minimize an influence of interference of radio waves transmitted from a femto base station by introducing a device supplying a data signal/synchronization signal, in order to mitigate an installation condition of the femto base station, and to allow a femto base station to be installed at a place where a backhaul line cannot be used and where a GPS signal and a signal from a macro base station cannot be received.SOLUTION: A communication device 10 has a function for transferring a data signal received from a macro base station 20 and a synchronization signal extracted from a radio signal to a femto base station 30 via a line such as a wired LAN. In addition, the communication device 10 reads signals exchanged between a center network 50 and the femto base station 30 to add or store information so that interference of radio waves transmitted from the femto base station 30 can be avoided.SELECTED DRAWING: Figure 3 |
