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    • 48. 发明公开
    • WIRELESS TRANSMITTER AND WIRELESS RECEIVER
    • DRAHTLOSER SENDER UND DRAHTLOSEREMPFÄNGER
    • EP1850516A1
    • 2007-10-31
    • EP06702139.4
    • 2006-01-05
    • Sharp Kabushiki Kaisha
    • KATO, Yasuyuki
    • H04J11/00H04J1/02H04B7/26H04L1/00
    • H04L5/006H04L1/0028H04L5/0046H04L5/0048H04L5/0096
    • Effective throughput is enhanced by minimizing a transmission amount of modulation information per frame.
      A storage part (22) storing information indicating an adaptive modulation level of a modulation parameter, a difference information output part (11) that generates difference information with one bit indicating a difference between the adaptive modulation level of a modulation parameter used for adaptive modulation in a previous frame and that of a modulation parameter used for adaptive modulation in a current frame, and a frame generation part (14,21) generating a frame using the difference information as modulation information to notify a receiving side of the modulation parameter used for adaptive modulation of a subcarrier or subcarrier group in the current frame, are provided.
    • 通过最小化每帧调制信息的传输量来增强有效吞吐量。 存储指示调制参数的自适应调制电平的信息的存储部分(22),产生差分信息的差分信息输出部分(11),其中一个比特指示用于自适应调制的调制参数的自适应调制电平之间的差异 前一帧和用于当前帧中的自适应调制的调制参数的帧;以及帧生成部分(14,21),其使用差分信息生成帧作为调制信息,以将接收侧通知用于自适应的调制参数 提供了当前帧中的子载波或子载波组的调制。
    • 49. 发明公开
    • WIRELESS COMMUNICATION APPARATUS, MOBILE TERMINAL AND WIRELESS COMMUNICATION METHOD
    • 设备以供无线通信,移动终端和方法用于无线通信
    • EP1843497A1
    • 2007-10-10
    • EP05811779.7
    • 2005-12-02
    • Sharp Kabushiki Kaisha
    • KASHIWAGI, HirokiHAMAGUCHI, Yasuhiro
    • H04J11/00H04J1/02
    • H04W72/048H04J1/00H04L5/0007H04L5/0037H04L5/0046H04L5/006H04L5/0064H04L5/0066H04W52/0212H04W52/16H04W52/247H04W52/346H04W52/42H04W72/0413H04W72/0473H04W72/085H04W72/1231H04W88/02H04W88/08Y02D70/122Y02D70/142
    • [Object] To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.
      [Overcoming Means] Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
    • [对象为了实现无线通信因此,与一个通信设备确实是一个有限的带终端能够接收仅频率的一部分。 [克服手段]本发明提供(10)做了一个频率信道分配部分配的频率信道,终端接收品质信息处理部(6)确实最优调制的计算速率和所需发送功率对于每个子载波,子载波功率控制部(12 )做对照的发射功率为每个子载波的电平,和一个确定的采矿部(10)做了检查连通装置的接收带宽,而确定性采矿无论通信设备是全带终端能够接收在系统中的所有频率信道的 带或是一个有限的带终端能够仅接收频率的一部分,并且当所述通信设备是有限的带末端,所有的或一部分子载波的发送功率在频信道减少所做的是邻近分配给的接收带 通信设备,并没有被分配到其他通信设备。