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    • 3. 发明授权
    • Code multiplexing transmission method, transmission apparatus and reception apparatus
    • 码复用发送方法,发送装置和接收装置
    • US09413499B2
    • 2016-08-09
    • US13254230
    • 2010-03-01
    • Kenichi HiguchiYoshihisa Kishiyama
    • Kenichi HiguchiYoshihisa Kishiyama
    • H04J11/00H04L5/00H04B1/7103H04J13/00H04L27/26
    • H04L5/0021H04B1/7103H04J11/0026H04J13/0003H04J13/0048H04J13/0059H04L27/2634H04L27/2636
    • To obtain a high frequency diversity effect while suppressing inter-code interference in code multiplexing transmission in an OFDM-based radio access scheme, a transmission apparatus is provided with an orthogonal spreading code generating section (10) that generates different spreading codes based on orthogonal code sequences, a phase rotation giving section (11) and spreading modulation section (12) which provide the information symbols or spreading codes with different phase rotation for each symbol sequence and then, spreads the information symbols with the spreading codes for each symbol sequence, and a multiplexing section (13) that multiplexes spread symbols of different symbol sequences, where the information symbols or the spreading codes are rotated by a phase rotation amount such that overlaps in a signal constellation in polar coordinates of spread symbols for transmitting different information symbols are controlled to within a required range.
    • 为了在基于OFDM的无线电接入方案中抑制代码复用传输中的码间干扰的同时获得高频分集效应,发送装置具有正交扩频码生成部(10),该正交扩展码生成部(10)根据正交码生成不同的扩频码 序列,相位旋转给出部分(11)和扩展调制部分(12),其为每个符号序列提供具有不同相位旋转的信息符号或扩展码,然后用每个符号序列的扩展码扩展信息符号,以及 复用部分(13),其复用不同符号序列的扩展符号,其中信息符号或扩展码被旋转相位旋转量,使得控制用于发送不同信息符号的扩展符号的极坐标中的信号星座中的重叠被控制 达到所需范围。
    • 4. 发明授权
    • Radio base station apparatus, terminal and radio communication method
    • 无线基站装置,终端和无线电通信方法
    • US09326279B2
    • 2016-04-26
    • US13985344
    • 2012-02-17
    • Yoshihisa Kishiyama
    • Yoshihisa Kishiyama
    • H04W4/00H04W72/04H04L5/00
    • H04W72/042H04L5/0057H04L5/0092H04W24/10
    • The present invention is designed to provide a radio base station apparatus which can acquire CSI reports at appropriate times, and which can trigger CSI reports effectively. The radio base station apparatus of the present invention has: a PDCCH signal generating section (211) that generates a downlink allocation signal for receiving and decoding downlink transmission data, the downlink allocation signal including a report request bit for triggering reporting of channel information aperiodically; a transmission section that transmits a downlink signal including a downlink control channel where the downlink allocation signal is mapped; and a receiving section that receives an uplink signal which includes the reporting of channel information from a terminal triggered by the report request bit, via the uplink.
    • 本发明旨在提供一种能够在适当的时间获取CSI报告的无线基站装置,其能够有效地触发CSI报告。 本发明的无线基站装置具有:生成用于接收和解码下行链路发送数据的下行链路分配信号的PDCCH信号生成部(211),所述下行链路分配信号包括用于触发非周期性地报告信道信息的报告请求比特; 传输包括下行链路分配信号被映射的下行链路控制信道的下行链路信号的发送部分; 以及接收部,其经由所述上行链路接收包括从所述报告请求位触发的终端的信道信息的报告的上行链路信号。
    • 8. 发明授权
    • Radio base station apparatus, mobile terminal apparatus and radio communication method
    • 无线基站装置,移动终端装置及无线通信方式
    • US09001638B2
    • 2015-04-07
    • US13387121
    • 2010-07-29
    • Teruo KawamuraYoshihisa KishiyamaMamoru Sawahashi
    • Teruo KawamuraYoshihisa KishiyamaMamoru Sawahashi
    • H04J11/00H04L25/02H04L5/00H04L27/26H04J13/00
    • H04L25/0226H04J13/0059H04L5/0048H04L5/0053H04L5/006H04L27/2613
    • To enable an uplink control signal subjected to user multiplexing by an orthogonally multiplexing method using the cyclic shift to be user-demultiplexed, and further enable channel estimation accuracy to be improved, a radio communication method of the invention is characterized in that a mobile terminal apparatus provides a plurality of subcarriers with phase rotation amounts set to minimize the number of unit subcarriers for coherent averaging in association with the number of multiplexed users, and transmits an uplink control signal using the plurality of subcarriers provided with the phase rotation amounts, and that a radio base station apparatus receives the uplink control signal, performs coherent averaging on reference signal using the different number of unit subcarriers corresponding to the number of multiplexed users to demultiplex into a reference signal for each of the users, and estimates a channel variation using the demultiplexed reference signal.
    • 为了能够通过使用循环移位进行用户多路复用的上行链路控制信号进行用户多路复用,能够提高信道估计精度,本发明的无线通信方法的特征在于,移动终端装置 提供具有相位旋转量的多个子载波,其相对于多路复用用户的数量与相关平均化的单位子载波的数量最小化,并且使用提供有相位旋转量的多个子载波来发送上行链路控制信号,并且 无线基站装置接收上行链路控制信号,使用与多路复用用户数对应的不同数量的单位子载波对参考信号进行相干平均,以解复用为每个用户的参考信号,并且使用解复用的 参考信号。