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    • 4. 发明授权
    • User equipment and channel state information feedback method
    • 用户设备和信道状态信息反馈方法
    • US08971436B2
    • 2015-03-03
    • US13703913
    • 2011-06-17
    • Satoshi NagataYoshihisa KishiyamaXiang YunJianchi ZhuXiaoming SheLan Chen
    • Satoshi NagataYoshihisa KishiyamaXiang YunJianchi ZhuXiaoming SheLan Chen
    • H04B7/02H04B7/04H04B7/06H04L1/00H04L5/00
    • H04B7/0478H04B7/024H04B7/0456H04B7/0482H04B7/0632H04L1/0015H04L1/0026H04L1/0031H04L5/0035
    • The present invention provides a user equipment and channel state information feedback method. The channel state information feedback method used in a coordinated multi-point system includes acquiring small-scale channel state information H′=[H′1, H′2, . . . , H′K] between a user equipment and all base stations joining coordination, acquiring large-scale channel state information li(i=1, . . . , K) between the user equipment and each of the base stations joining coordination, acquiring a CQI (CQIi=li▪|H′|, i=1, . . . , K) between the user equipment and each of the base stations joining coordination based on the small-scale channel state information and the large-scale channel state information, updating the source codebook C using the acquired CQI to acquire an updated codebook{tilde over (C)},performing quantization processing using the updated codebook to acquire CDI, and transmitting the CDI and the CQI associated with each of the base stations joining coordination to a base station as feedback to provide for channel reconstruction in the base station. According to the invention, the rate of utilization of feedback information is improved.
    • 本发明提供一种用户设备和信道状态信息反馈方法。 在协调多点系统中使用的信道状态信息反馈方法包括获取小规模信道状态信息H'= [H'1,H'2,...] 。 。 ,H'K]在用户设备和所有基站之间加入协调,获取用户设备和每个基站之间加入协调的大规模信道状态信息li(i = 1,...,K),获取 基于小规模信道状态信息和大规模信道状态信息,用户设备与加入协调的每个基站之间的CQI(CQIi =li▪| H'|,i = 1,...,K) 使用获取的CQI更新源码本C以获取更新的码本((C)),使用更新的码本执行量化处理以获取CDI,以及发送与连接协调的每个基站相关联的CDI和CQI 作为反馈提供给基站中的信道重建的基站。 根据本发明,提高了反馈信息的利用率。
    • 5. 发明申请
    • RECEIVING APPARATUS, DATA RECEIVING METHOD, AND CHANNEL ESTIMATING APPARATUS AND METHOD THEREFOR
    • 接收装置,数据接收方法和信道估计装置及其方法
    • US20140050111A1
    • 2014-02-20
    • US14112265
    • 2012-04-20
    • Satoshi NagataHidekazu TaokaJianchi ZhuXiaoming SheLan Chen
    • Satoshi NagataHidekazu TaokaJianchi ZhuXiaoming SheLan Chen
    • H04L25/02
    • H04L25/0202H04J11/0036H04J11/005H04L25/0204H04L25/03891
    • Disclosed are a receiving apparatus, a data receiving method, a channel estimating apparatus and a channel estimating method for multi-user interference (MUI) signals according to the present invention. The channel estimating apparatus for MUI signals has: a user type determining section configured to determine whether a UE apparatus corresponding to an own station belongs to a first type user or a second type user and to determine demodulation information to use in channel estimation of MUI signals based on the type of the UE apparatus corresponding to the own station; and a second channel estimating section configured to perform channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of MUI signals. In the present invention, the UE apparatus is classified by type and the demodulation information to use in channel estimation of MUI signals is determined based on the type of the UE apparatus. With this structure, it is possible to improve channel estimation accuracy and further to improve the performance of data reception and user and cell throughputs.
    • 公开了根据本发明的接收装置,数据接收方法,信道估计装置和用于多用户干扰(MUI)信号的信道估计方法。 用于MUI信号的信道估计装置具有:用户类型确定部分,用于确定与本站对应的UE装置是属于第一类用户还是第二类用户,并确定在MUI信号的信道估计中使用的解调信息 基于对应于本站的UE装置的类型; 以及第二信道估计部,被配置为基于所确定的解调信息来执行多用户干扰信号的信道估计,以在MUI信号的信道估计中使用。 在本发明中,根据类型对UE装置进行分类,并根据UE装置的种类来确定在MUI信号的信道估计中使用的解调信息。 利用这种结构,可以提高信道估计精度并进一步提高数据接收的性能和用户和小区吞吐量。
    • 6. 发明申请
    • USER EQUIPMENT AND CHANNEL STATE INFORMATION FEEDBACK METHOD
    • 用户设备和通道状态信息反馈方法
    • US20130114751A1
    • 2013-05-09
    • US13703913
    • 2011-06-17
    • Satoshi NagataYoshihisa KishiyamaXiang YunJianchi ZhuXiaoming SheLan Chen
    • Satoshi NagataYoshihisa KishiyamaXiang YunJianchi ZhuXiaoming SheLan Chen
    • H04B7/04
    • H04B7/0478H04B7/024H04B7/0456H04B7/0482H04B7/0632H04L1/0015H04L1/0026H04L1/0031H04L5/0035
    • The present invention provides a user equipment and channel state information feedback method. The channel state information feedback method used in a coordinated multi-point system includes acquiring small-scale channel state information H′=[H′1, H′2, . . . , H′K] between a user equipment and all base stations joining coordination, acquiring large-scale channel state information li(i=1, . . . , K) between the user equipment and each of the base stations joining coordination, acquiring a CQI (CQIi=li▪|H′|, i=1, . . . , K) between the user equipment and each of the base stations joining coordination based on the small-scale channel state information and the large-scale channel state information, updating the source codebook C using the acquired CQI to acquire an updated codebook {tilde over (C)}, performing quantization processing using the updated codebook to acquire CDI, and transmitting the CDI and the CQI associated with each of the base stations joining coordination to a base station as feedback to provide for channel reconstruction in the base station. According to the invention, the rate of utilization of feedback information is improved.
    • 本发明提供一种用户设备和信道状态信息反馈方法。 在协调多点系统中使用的信道状态信息反馈方法包括获取小规模信道状态信息H'= [H'1,H'2,...] 。 。 ,H'K]在用户设备和所有基站之间加入协调,获取用户设备和每个基站之间加入协调的大规模信道状态信息li(i = 1,...,K),获取 基于小规模信道状态信息和大规模信道状态信息,用户设备和加入协调的每个基站之间的CQI(CQIi = li * | H'|,i = 1,...,K) 使用获取的CQI更新源码本C以获取更新的码本((C)),使用更新的码本执行量化处理以获取CDI,以及发送与连接协调的每个基站相关联的CDI和CQI 作为反馈提供给基站中的信道重建的基站。 根据本发明,提高了反馈信息的利用率。
    • 8. 发明申请
    • METHOD FOR COORDINATED MULTI-CELL TRANSMISSION, CENTRAL CONTROLLER AND USER EQUIPMENT
    • 协调多媒体传输方法,中央控制器和用户设备
    • US20110034163A1
    • 2011-02-10
    • US12840171
    • 2010-07-20
    • Jianchi ZhuXiaoming SheXiang YunLan Chen
    • Jianchi ZhuXiaoming SheXiang YunLan Chen
    • H04W40/00
    • H04B7/022H04B7/024H04L5/0035H04L5/0091
    • Embodiments of the present invention disclose a method for coordinated multi-cell transmission, a central controller and a User Equipment (UE). In one embodiment, the method includes: determining, by a central controller, at least one candidate cooperating set in a super-cell, wherein each cell in the super-cell belongs to at least one candidate cooperating set, and broadcasting information of the at least one candidate cooperating set determined to all UEs in the super-cell; selecting, by each UE, a candidate cooperating set from the at least one candidate cooperating set as a cooperating set of the UE, and feeding back information of the cooperating set selected to the central controller; and determining, by the central controller, all cooperating sets in the super-cell and UEs participating in cooperation in each cooperating set according to the information of the selected cooperating set fed back by each UE.
    • 本发明的实施例公开了一种用于协调多小区传输的方法,中央控制器和用户设备(UE)。 在一个实施例中,该方法包括:由中央控制器确定超小区中的至少一个候选协作集合,其中超小区中的每个小区属于至少一个候选协作集,并且广播信息 为超级小区中的所有UE确定的至少一个候选协作集; 从所述至少一个候选协作集合中选择所述候选协作集合作为所述UE的协作集合,并将所选择的所述协作集合的信息反馈给所述中央控制器; 以及由所述中央控制器根据由每个UE反馈的所选择的合作集的信息,确定所述超小区中的所有协作集合以及参与每个协作集合中的协作的UE。
    • 9. 发明申请
    • PRE-CODING METHOD FOR MIMO SYSTEM AND APPARATUS USING THE METHOD
    • 用于MIMO系统的预编码方法和使用该方法的装置
    • US20080095258A1
    • 2008-04-24
    • US11875600
    • 2007-10-19
    • Xiaoming SheJingxiu LiuLan ChenKenichi Higuchi
    • Xiaoming SheJingxiu LiuLan ChenKenichi Higuchi
    • H04L27/28
    • H04L25/03343H04B7/0639H04B7/066H04L1/0675
    • A pre-coding method for a MIMO system and an apparatus using the same are described. In the method, a receiver determines a corresponding codebook from a multi-codebook including multiple codebooks according to a location of a resource block, selects a corresponding codeword index from the determined codebook and transmits the index to a transmitter; the transmitter determines the corresponding codebook from the multi-codebook including multiple codebooks according to the location of the resource block where transmission data is to be transmitted, selects a corresponding codeword from the determined codebook according to the codeword index and performs pre-coding for the transmission data with the selected codeword. The pre-coding is performed with the multi-codebook in the present invention, which increases a diversity of pre-coding matrixes, so dynamic fluctuation range of a equivalent channel is improved and thus the performance of multi-user scheduling is enhanced effectively.
    • 对MIMO系统的预编码方法及使用该MIMO系统的装置进行说明。 在该方法中,接收机根据资源块的位置从包括多个码本的多码本中确定相应的码本,从确定的码本中选择相应的码字索引,并将该索引发送给发射机; 发射机根据发送数据的资源块的位置根据码字索引从包含多个码本的多码本中确定相应的码本,根据码字索引从所确定的码本中选择一个相应的码字,并执行预编码 传输数据与选定的码字。 利用本发明的多码本进行预编码,这增加了预编码矩阵的分集,从而提高了等效信道的动态波动范围,从而有效地提高了多用户调度的性能。