Base station, wireless communication system, and method for controlling allocation of wireless resource

#This application is based upon and claims the benefit of priority of the prior Japanese Patent application No. 2013-240959, filed on Nov. 21, 2013, the entire contents of which are incorporated herein by reference.

#The embodiments discussed herein are a base station, a wireless communication system, and a method for controlling allocation of wireless resource.

#A typical wireless communication system includes wireless terminals and base stations. In such a wireless communication system, each base station provides a wireless area where a wireless terminal communicates with the base station, using a wireless resource.

#FIG. 1 is a block diagram schematically illustrating an example of the configuration of a wireless communication system according to a first embodiment;

#FIG. 2 is a block diagram schematically illustrating an example of the configuration of a base station of FIG. 1;

#FIG. 3 is a block diagram schematically illustrating an example of the configuration of a transmitter of FIG. 2;

#Even when the wireless terminal sends a preamble via the wireless resource allocated to preamble communication in the corresponding wireless area, interference based on data sent in another wireless area may cause the base station to erroneously detect the preamble.

#In this case, the base station sends an unnecessary response signal in response to the preamble erroneously detected, which has a possibility of lowering the throughput of the entire wireless communication system. Besides, the consumption electric power of the base station may increase.

#Hereinafter, the embodiments will be described with reference to the accompanying drawings. The following embodiments are exemplary, so there is no intention to exclude application of various modifications and techniques not suggested in the following description to the embodiments. Throughout accompanying drawings of the embodiments, like reference numbers designate the same or substantially identical parts and elements.