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    • 6. 发明公开
    • TRANSMITTING APPARATUS, TRANSMITTING METHOD, RECEIVING APPARATUS, RECEIVING METHOD AND TRANSFER SYSTEM
    • SENDEVORRICHTUNG,SENDEVERFAHREN,EMPFANGSSVORRICHTUNG,EMPFANGSVERFAHREN UNDÜBERTRAGUNGSSYSTEM
    • EP2026486A1
    • 2009-02-18
    • EP07745174.8
    • 2007-06-13
    • Sony Corporation
    • YAMASUGE, HiroyukiUSUI, Takashi
    • H04J11/00H04B1/707
    • 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,本发明在多个子载波中发送多载波信号以替代与副载波相对应的信号,在空值信号的避免传输的频率位置处执行发送回避处理。 随后,对发送回避处理的输出执行逆傅里叶变换,根据被替换为空信号的子载波的数量来发送已经变换的多载波信号的发送功率,并且发送多载波信号。 当接收到该多载波信号时,估计了避免传输的子载波,并且当在估计中估计出存在避免传输的子载波时,在不使用避免传输的子载波的情况下进行解扩和解调。
    • 7. 发明公开
    • RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD
    • FUNKKOMMUNIKATIONSEINRICHTUNG UND FUNKKOMMUNIKATIONSVERFAHREN
    • EP1993214A1
    • 2008-11-19
    • EP07714343.6
    • 2007-02-16
    • Sony Corporation
    • YAMASUGE, Hiroyuki
    • H04B1/713H04J11/00
    • H04L1/0047H04L1/0003H04L1/0009H04L27/2647
    • Transmission data spread over a frequency domain and a time domain is efficiently received. When a spread signal is received, if the SNR exceeds a predetermined value, it is determined that a despreading process is not necessary for all blocks, and a block selection flow is started. If a block having a channel estimation result indicating that a decoding process is possible without despreading is present, only that block is subjected to the decoding process, and despreading processes over the frequency domain and time domain are terminated. Moreover, when decoding is performed by despreading only some of the blocks, the despreading process over the frequency domain is preferentially performed so as to efficiently terminate FFT with regard to the spread signal over the time domain for which despreading is not performed.
    • 在频域和时域上扩展的传输数据被有效地接收。 当接收到扩展信号时,如果SNR超过预定值,则确定对于所有块不需要解扩处理,并且开始块选择流程。 如果存在具有指示在不进行解扩的情况下可以进行解码处理的信道估计结果的块,则仅对该块进行解码处理,并且终止频域和时域的解扩处理。 此外,当通过仅解扩部分块进行解码时,优先执行频域上的解扩处理,以便有效地终止对于不进行解扩的时域上的扩展信号的FFT。