Patent ID: 8325668

Claim:
A method of controlling communications, comprising: a step of determining whether reception of information from a mobile station is normal; a step of generating a first signal when reception of information is determined to be normal, generating a second signal when reception of information is determined to be abnormal and when the mobile station is instructed to retransmit information using a first radio resource used in previous transmission and when reception of information is determined to be abnormal and when the mobile station is instructed to retransmit the information using a second radio resource different from the first radio resource, generating the first signal, and a third signal including information on the second radio resource; and a step of transmitting any one of the first signal, the second signal, and a combination of the first signal and the third signal, the first signal, and the second signal, and the combination of the first signal and the third signal being generated by the step of generating, wherein the step of generating further includes a step of generating, when reception of information is determined to be normal, in addition to the first signal, a fourth signal for reporting, to the mobile station, a third radio resource to be used in following transmission.