公开(公告)号：US09401830B2

公开(公告)日：2016-07-26

申请号：US14116836

申请日：2012-05-10

申请人： Satoshi Nagata ,  Jianchi Zhu ,  Xiaoming She ,  Xiang Yun ,  Yu Jiang ,  Lan Chen ,  Hirohito Suda

发明人： Satoshi Nagata ,  Jianchi Zhu ,  Xiaoming She ,  Xiang Yun ,  Yu Jiang ,  Lan Chen ,  Hirohito Suda

IPC分类号： H04L25/03 ,  H04B7/04 ,  H04L5/00 ,  H04L25/02 ,  H04B7/06

CPC分类号： H04L25/03904 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04L5/0035 ,  H04L25/0242 ,  H04L25/03949 ,  H04L2025/03802

摘要： In order to recognize a relatively accurate channel state of each UE, a channel of the UE is reconfigured based on channel phase information and channel quality information reported from the UE to obtain a channel matrix of the UE. Besides, a channel of the UE is reconfigured based on channel phase information and channel quality information reported from the UE to obtain a channel matrix of the UE, a precoding matrix of the UE is determined based on the channel matrix of the UE, and precoding is performed on data to transmit to the UE, using the precoding matrix.

摘要翻译： 为了识别每个UE的相对准确的信道状态，基于从UE报告的信道相位信息和信道质量信息重新配置UE的信道，以获得UE的信道矩阵。 此外，基于从UE报告的信道相位信息和信道质量信息重新配置UE的信道，以获得UE的信道矩阵，基于UE的信道矩阵确定UE的预编码矩阵，并且预编码 使用预编码矩阵对要发送给UE的数据执行。

公开(公告)号：US09647806B2

公开(公告)日：2017-05-09

申请号：US14112270

申请日：2012-04-23

申请人： Satoshi Nagata ,  Jianchi Zhu ,  Mingju Li ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Jianchi Zhu ,  Mingju Li ,  Xiaoming She ,  Lan Chen

IPC分类号： H04W72/00 ,  H04L5/00 ,  H04W72/04 ,  H04B7/024 ,  H04L1/00 ,  H04L1/18 ,  H04B7/06

CPC分类号： H04L5/0035 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/1887 ,  H04W72/04 ,  H04W72/1231

摘要： Provided is a method for configuring coordinated multipoint transmission (CoMP) of the present invention. The method includes: providing a transmission mode to support CoMP and, at a base station (eNB), configuring the transmission mode to support CoMP to a user terminal (UE) by radio resource control (RRC) signaling. According to the method of the present invention, it becomes possible to configure CoMP so that the LTE system can support the CoMP function.

公开(公告)号：US08971436B2

公开(公告)日：2015-03-03

申请号：US13703913

申请日：2011-06-17

申请人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Xiang Yun ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Xiang Yun ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

CPC分类号： H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0632 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0031 ,  H04L5/0035

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20150043370A1

公开(公告)日：2015-02-12

申请号：US14385866

申请日：2012-03-28

申请人： Zhi Zhang ,  Yixue Lei ,  Jianchi Zhu

发明人： Zhi Zhang ,  Yixue Lei ,  Jianchi Zhu

IPC分类号： H04W24/02 ,  H04W28/04 ,  H04W88/08

CPC分类号： H04W24/02 ,  H04W28/04 ,  H04W84/045 ,  H04W88/08

摘要： The long term evolution (LTE) of the third generation partnership project may benefit from a long term evolution local area network (LTE-LAN) system, such as a portable LTE-LAN system. Moreover, an LTE-LAN system may benefit from inter-cell interference (ICI) detection for inter portable LTE-LAN interference. A method can include measuring, with a first local access point, a first power of a first uplink sequence and a second power of a second uplink sequence from at least one user equipment. The method can also include determining that the first local access point and a second local access point are interfering with one another based on a comparison of the first power and the second power.

摘要翻译： 第三代合作伙伴项目的长期演进（LTE）可能受益于诸如便携式LTE-LAN​​系统的长期演进局域网（LTE-LAN​​）系统。 此外，LTE-LAN​​系统可以受益于便携式LTE-LAN​​干扰的小区间干扰（ICI）检测。 方法可以包括利用第一本地接入点从至少一个用户设备测量第一上行链路序列的第一功率和第二上行链路序列的第二功率。 该方法还可以包括基于第一功率和第二功率的比较来确定第一本地接入点和第二本地接入点彼此干扰。

公开(公告)号：US20140050111A1

公开(公告)日：2014-02-20

申请号：US14112265

申请日：2012-04-20

申请人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04L25/02

CPC分类号： H04L25/0202 ,  H04J11/0036 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/03891

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20130114751A1

公开(公告)日：2013-05-09

申请号：US13703913

申请日：2011-06-17

申请人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Xiang Yun ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Yoshihisa Kishiyama ,  Xiang Yun ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04B7/04

CPC分类号： H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/0632 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0031 ,  H04L5/0035

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08351386B2

公开(公告)日：2013-01-08

申请号：US12680585

申请日：2008-09-26

申请人： Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04W4/00

CPC分类号： H04L1/0034 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0656 ,  H04L1/0026 ,  H04W72/1231

摘要： A base station apparatus includes a correction unit for correcting a CQI reported from a user apparatus and a scheduler for scheduling based on the corrected CQI. The correction unit uses a correction table to correct the CQI such that if the reported CQI is poor, the CQI is slightly reduced, and otherwise, the CQI is significantly reduced. One method of generating the correction table includes deriving a first SINR in consideration of the number of interference users less than (n−1) and a second SINR in consideration of the number of interference users equal to (n−1) to explore a distribution of the second SINR to the first SINR. In this method, correspondence between the first SINR and the second SINR is determined based on the distribution to generate the correction table.

摘要翻译： 基站装置包括校正单元，用于校正从用户装置报告的CQI和基于校正后的CQI进行调度的调度器。 校正单元使用校正表来校正CQI，使得如果所报告的CQI较差，则CQI略微降低，否则CQI显着降低。 一种生成校正表的方法包括考虑到小于（n-1）的干扰用户的数量和考虑到等于（n-1）的干扰用户的数量来探测分布的第二SINR，导出第一SINR 的第二SINR到第一SINR。 在该方法中，基于分配来确定第一SINR和第二SINR之间的对应关系，以产生校正表。

公开(公告)号：US20110034163A1

公开(公告)日：2011-02-10

申请号：US12840171

申请日：2010-07-20

申请人： Jianchi Zhu ,  Xiaoming She ,  Xiang Yun ,  Lan Chen

发明人： Jianchi Zhu ,  Xiaoming She ,  Xiang Yun ,  Lan Chen

IPC分类号： H04W40/00

CPC分类号： H04B7/022 ,  H04B7/024 ,  H04L5/0035 ,  H04L5/0091

摘要： 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.

摘要翻译： 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。