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    • 1. 发明申请
    • Transmission apparatus and peak suppression method
    • 传输装置和峰值抑制方法
    • US20070121738A1
    • 2007-05-31
    • US10573815
    • 2004-09-27
    • Isamu YoshiiKenichi MiyoshiJun ChengAkihiko NishioMasaru FukuokaMasaru Fukuoka
    • Isamu YoshiiKenichi MiyoshiJun ChengAkihiko NishioMasaru FukuokaMasaru Fukuoka
    • H04K1/10
    • H04L27/2624H04B1/707H04B2201/70706H04B2201/70707
    • A transmission apparatus capable of improving overall throughput of a system by suppressing peaks using some frequencies in a communication band. In this apparatus, modulation section (102) adaptively modulates transmission data. Combination section (103) combines the waveform of the transmission data and the waveform of an inverse replica and suppresses peaks equal to or higher than a threshold. When there are peaks equal to or higher than a threshold, inverse replica generation section (112) extracts the waveform of a peak equal to or higher than the threshold and generates an inverse replica which is the waveform having the inverse characteristic of the extracted waveform. Where MCS is set for each subcarrier, sub-band selection section (114) selects the frequency of a subcarrier having large margin in reception quality and outputs the inverse replica within the range of the selected frequency to combination section (103).
    • 一种传输装置,其能够通过抑制通信频带中的一些频率的峰值来提高系统的整体吞吐量。 在该装置中,调制部(102)自适应地调制发送数据。 组合部(103)组合发送数据的波形和逆副本的波形,抑制等于或高于阈值的峰值。 当存在等于或高于阈值的峰值时,逆副本生成部分(112)提取等于或高于阈值的峰值的波形,并产生具有所提取波形的逆特性的波形的逆副本。 在为每个子载波设置MCS的情况下,子波段选择部(114)选择接收质量较大余量的副载波的频率,并将所选频率的范围内的反复制输出到组合部(103)。
    • 2. 发明申请
    • Transmission apparatus and peak suppression method
    • 传输装置和峰值抑制方法
    • US20070121737A1
    • 2007-05-31
    • US10573687
    • 2004-09-27
    • Isamu YoshiiKenichi MiyoshiJun ChengAkihiko NishioMasaru Fukuoka
    • Isamu YoshiiKenichi MiyoshiJun ChengAkihiko NishioMasaru Fukuoka
    • H04K1/10
    • H04L27/2618H04L1/0003H04L1/0009
    • A transmission apparatus capable of improving overall throughput of a system by suppressing peaks using some frequencies in a communication band. In this apparatus, modulation section (102) adaptively modulates transmission data. Combination section (103) combines the waveform of the transmission data and an inverse replica and suppresses peaks equal to or higher than a threshold. When there are peaks equal to or higher than a threshold, inverse replica generation section (112) extracts the waveform of a peak equal to or higher than the threshold and generates an inverse replica which is the waveform having the inverse characteristic of the extracted waveform. Sub-band selection section (114) selects frequencies of subcarriers for which MCS having low transmission efficiency is selected and outputs the inverse replica within the range of the selected frequency to combination section (103).
    • 一种传输装置,其能够通过抑制通信频带中的一些频率的峰值来提高系统的整体吞吐量。 在该装置中,调制部(102)自适应地调制发送数据。 组合部(103)组合发送数据的波形和逆副本,并抑制等于或高于阈值的峰值。 当存在等于或高于阈值的峰值时,逆副本生成部分(112)提取等于或高于阈值的峰值的波形,并产生具有所提取波形的逆特性的波形的逆副本。 子带选择部(114)选择选择了低传输效率的MCS的子载波的频率,并将所选频率的范围内的逆副本输出到组合部(103)。
    • 8. 发明授权
    • Radio communication base station apparatus and pilot transmission method
    • 无线电通信基站装置和导频传输方法
    • US08416810B2
    • 2013-04-09
    • US12160872
    • 2007-01-18
    • Isamu YoshiiAkihiko NishioMasaru FukuokaKatsuhiko Hiramatsu
    • Isamu YoshiiAkihiko NishioMasaru FukuokaKatsuhiko Hiramatsu
    • H04J4/00
    • H04J11/005H04L5/0007H04L5/005H04L25/03866H04L27/2602
    • Provided is a base station capable of giving a pilot appropriate for both of multicast data and unicast data which are frequency-multiplexed. In a pilot generation unit (105) of the base station, an insertion unit (1051) inserts a pilot (common pilot) common to a plurality of cells to generate an orthogonal pilot sequence (2). In accordance with the insertion process in the insertion unit (1051), an insertion unit (1052) inserts a sequence (common sequence) common to a plurality of cells to a unique scrambling sequence to generate a scrambling sequence. A scrambling unit (1053) performs a scrambling process for multiplying the orthogonal pilot sequence (2) by the scrambling sequence. This scrambling process generates, in a part of pilot sequences different for respective cells, a pilot sequence containing a pilot common to the cells.
    • 提供了能够给出适合于频率复用的多播数据和单播数据两者的导频的基站。 在基站的导频生成单元(105)中,插入单元(1051)将多个小区公共的导频(公共导频)插入以生成正交导频序列(2)。 根据插入单元(1051)中的插入处理,插入单元(1052)将多个单元公共的序列(公共序列)插入到唯一的加扰序列以生成加扰序列。 加扰单元(1053)执行用于将正交导频序列(2)乘以加扰序列的加扰处理。 该加扰过程在不同于各个小区的导频序列的一部分中生成包含小区公共的导频的导频序列。