and the menb thereby making it possible to suppress interference with the menb due to signals from the hues in the uplink furthermore since synchronization can be established between mues located in the vicinity of an henb and the henb henb 100 can suppress interference due to signals from mues in the uplink by means of for example an interference removing interference canceller process not shown on the other hand henb 100 recognizes that henb 100 forms an isolated cell and sets a dl frame timing and an ul frame timing independently of an menb that is to say autonomously upon a failure in any of the above processes a to c in a case where frame timing of menb is not detected in this case although frame timing synchronization is not established between an menb and henb 100 henb 100 is an isolated cell and therefore can communicate with the menb with no interference according to the present embodiment it is possible to accurately synchronize frame timing between an henb and an menb and suppress interference in uplink fig4 is a block diagram showing a configuration of an henb according to the present embodiment here in fig4 the same components as in fig1 will be assigned the same reference numerals and overlapping descriptions will be omitted in henb 200 shown in fig4 control section 201 detects the presence of an interfering menb when all processes succeed in symbol timing detecting section 107 subframe timing detecting section 110 and frame timing detecting section 111 a case where frame timing of an menb is detected in a surrounding search mode as with control section 116 fig1 in the present.