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    • 7. 发明授权
    • Transmission apparatus, transmission method, reception apparatus, reception method, and transmission system
    • 传输装置,传输方法,接收装置,接收方法和传输系统
    • US08644399B2
    • 2014-02-04
    • US12305143
    • 2007-06-13
    • Hiroyuki YamasugeTakashi Usui
    • Hiroyuki YamasugeTakashi Usui
    • H04K1/10H04L27/28
    • H04L27/2602H04L5/0007H04L5/0062H04L25/03828H04L27/2626H04L27/2647H04W74/08H04W84/12
    • It is desired to suitably carry out transmission processing and reception processing carried out when transmitting a multicarrier signal where specific subcarriers are omitted. Therefore, the present invention carries out transmission avoidance processing operable when transmitting a multicarrier signal to replace signals corresponding to subcarriers, in a plurality of subcarriers, at frequency positions where transmission is avoided with a null signal. Subsequently, an inverse Fourier transform is carried out on the output of the transmission avoidance processing, the transmission power of the multicarrier signal that has been transformed is amplified in accordance with the number of subcarriers replaced with the null signal and the multicarrier signal is transmitted. When this multicarrier signal is received, subcarriers where transmission was avoided are estimated, and when it is estimated in the estimation that subcarriers where transmission was avoided are present, despreading and demodulation are carried out without using the subcarriers where transmission was avoided.
    • 期望在发送特定子载波被省略的多载波信号时进行发送处理和接收处理。 因此,本发明可以在发送多载波信号时,在多个子载波中,在用空信号避免发送的频率位置处发送对应于副载波的信号,进行可发送回避处理。 接着,对发送回避处理的输出进行逆傅里叶变换,根据被空值信号代替的副载波的数量,发送已经变换的多载波信号的发送功率,并发送多载波信号。 当接收到该多载波信号时,估计避免传输的子载波,并且当在估计中估计出存在避免传输的子载波时,进行解扩和解调,而不使用避免传输的副载波。
    • 8. 发明申请
    • Transmission Apparatus, Transmission Method, Reception Apparatus, Reception Method, and Transmission System
    • 传输装置,传输方法,接收装置,接收方法和传输系统
    • US20090207888A1
    • 2009-08-20
    • US12305143
    • 2007-06-13
    • Hiroyuki YamasugeTakashi Usui
    • Hiroyuki YamasugeTakashi Usui
    • H04B1/707H04J11/00H04L27/28
    • H04L27/2602H04L5/0007H04L5/0062H04L25/03828H04L27/2626H04L27/2647H04W74/08H04W84/12
    • It is desired to suitably carry out transmission processing and reception processing carried out when transmitting a multicarrier signal where specific subcarriers are omitted. Therefore, the present invention carries out transmission avoidance processing operable when transmitting a multicarrier signal to replace signals corresponding to subcarriers, in a plurality of subcarriers, at frequency positions where transmission is avoided with a null signal. Subsequently, an inverse Fourier transform is carried out on the output of the transmission avoidance processing, the transmission power of the multicarrier signal that has been transformed is amplified in accordance with the number of subcarriers replaced with the null signal and the multicarrier signal is transmitted. When this multicarrier signal is received, subcarriers where transmission was avoided are estimated, and when it is estimated in the estimation that subcarriers where transmission was avoided are present, despreading and demodulation are carried out without using the subcarriers where transmission was avoided.
    • 期望在发送特定子载波被省略的多载波信号时进行发送处理和接收处理。 因此,本发明可以在发送多载波信号时,在多个子载波中,在用空信号避免发送的频率位置处发送对应于副载波的信号,进行可发送回避处理。 接着,对发送回避处理的输出执行逆傅立叶变换,根据被空值信号代替的副载波的数量,发送已变换的多载波信号的发送功率,并发送多载波信号。 当接收到该多载波信号时,估计避免传输的子载波,并且当在估计中估计出存在避免传输的子载波时,进行解扩和解调,而不使用避免传输的副载波。