1. A wireless signal transmitting method in which at least one access point among a plurality of access points each constituting a different communication cell transmits a wireless signal on which directivity control has been performed to stations, the wireless signal transmitting method comprising: generating a preamble signal to be added to the wireless signal, the preamble signal being used to perform timing synchronization and frequency synchronization; generating a pilot subcarrier signal that is used to correct a residual frequency error; performing weighting on a data signal to which the pilot subcarrier signal has been added and outputting a wireless signal; extracting a propagation channel corresponding to a subcarrier in which the preamble signal is transmitted from among propagation channels acquired from the stations; calculating a weight based on the extracted propagation channel and performing weighting on the preamble signal; and transmitting the wireless signal on which the weighting has been performed and the preamble signal on which the weighting has been performed which is added to the wireless signal on which the weighting has been performed.