A base station device, and it can be carried out first modulation mode of high speed wireless communication and wireless communication can speed modulation corresponding to second, more than 1 M and the following sub channels for wireless communication between the wireless terminal and wireless terminal in the range of ability, and is characterized in that the wireless the base station, with the radio base station: a determination section in the first combinations and second combinations were needed to meet the communication speed of the case, in the need to send the output necessary to send an output of the second combinations is less than that of the first combinations, select the second combinations, among them, the first combined by the first modulation the number of sub channels and N, the second combinations of second modulation and sub channel number N \, among them, 1 = N = 1 = N and M = M; and the\ Notice of the Ministry of the combined, the selected Notify the wireless terminal.
【技术实现步骤摘要】
【技术保护点】
１．一种无线基站，其与能够进行高速无线通信的第１调制方式和能够进行低速无线通信的第２调制方式对应地，将１个以上且Ｍ个以下的子信道用于在无线终端的能力范围内、与该无线终端之间进行的无线通信，所述无线基站的特征在于，所述无线基站具有：判定部，其在第１组合和第２组合均满足所需要的通信速度的情况下，在该第２组合的必要发送输出小于该第１组合的必要发送输出时，选择该第２组合，其中，该第１组合由所述第１调制方式和子信道数量Ｎ构成，该第２组合由第２调制方式和子信道数量Ｎ’构成，其中，１≤Ｎ≤Ｍ，且１≤Ｎ’≤Ｍ；以及通知部，其将该选择出的组合通知给该无线终端。
【技术特征摘要】
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