公开(公告)号：US09414251B2

公开(公告)日：2016-08-09

申请号：US14112272

申请日：2012-04-20

申请人： Satoshi Nagata ,  Yang Song ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Yang Song ,  Xiaoming She ,  Lan Chen

IPC分类号： H04J1/16 ,  H04W24/10 ,  H04B7/04 ,  H04L1/00 ,  H04B17/24 ,  H04B7/06

CPC分类号： H04W24/10 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0636 ,  H04B17/24 ,  H04L1/0025 ,  H04L1/003

摘要： Provided are a method for determining multi-user channel quality in a mobile communication system, a user terminal and a base station of the present invention. The method includes: in each user terminal, calculating the MU CQIs based on a first feedback template notified from a base station that has control over the user terminal or a second feedback template set by the user terminal and feeding the MU CQIs back to the base station. In the first feedback template or the second feedback template, a feedback ratio of MU CQIs for a plurality of hypothetical interference numbers k are defined, k being an integer larger than 0 and smaller than a maximum number of users schedulable by the base station. According to the present invention, it is possible to improve the accuracy in multi-user MIMO scheduling.

摘要翻译： 提供了一种用于确定本发明的移动通信系统，用户终端和基站中的多用户信道质量的方法。 该方法包括：在每个用户终端中，基于从具有对用户终端的控制的基站通知的第一反馈模板或由用户终端设置的第二反馈模板来计算MU CQI，并将MU CQI送回到基站 站。 在第一反馈模板或第二反馈模板中，定义多个假想干扰数k的MU CQI的反馈比，k是大于0并小于由基站调度的最大用户数的整数。 根据本发明，可以提高多用户MIMO调度的精度。

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：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：US09351177B2

公开(公告)日：2016-05-24

申请号：US14110738

申请日：2012-04-12

申请人： Satoshi Nagata ,  Xiang Yun ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Xiang Yun ,  Xiaoming She ,  Lan Chen

IPC分类号： H04W4/00 ,  H04W24/02 ,  H04B7/02 ,  H04B7/06 ,  H04B7/04 ,  H04W72/08

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04W72/082

摘要： The present invention is designed to provide a mobile terminal apparatus, a radio base station apparatus and a radio communication method which, even when a MIMO technique and a CoMP technique are applied together, can optimize the effects of both techniques. The mobile terminal apparatus estimates downlink channel states using reference signals included in downlink signals from a plurality of cells, determines the PMI for each cell and inter-cell phase difference information, from the channel states of the plurality of cells, such that the combinations of the PMI of each cell and inter-cell phase difference information become optimal, measures channel quality from the determined PMIs and inter-cell phase difference information, and transmits the PMI for each cell, the inter-cell phase difference information and channel quality information, to a radio base station apparatus.

摘要翻译： 本发明旨在提供即使将MIMO技术和CoMP技术应用于一起也可以优化两种技术的效果的移动终端装置，无线基站装置和无线通信方法。 移动终端设备使用包括在来自多个小区的下行链路信号中的参考信号来估计下行链路信道状态，从多个小区的信道状态确定每个小区的PMI和小区间相位差信息，使得 每个小区的PMI和小区间相位信息变为最优，从确定的PMI和小区间相位信息中测量信道质量，并且发送每个小区的PMI，小区间相位差信息和信道质量信息， 涉及无线基站装置。

公开(公告)号：US20140133419A1

公开(公告)日：2014-05-15

申请号：US14117686

申请日：2012-05-10

申请人： Satoshi Nagata ,  Yu Jiang ,  Jing Wang ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Yu Jiang ,  Jing Wang ,  Xiaoming She ,  Lan Chen

IPC分类号： H04L5/00

CPC分类号： H04L5/0073 ,  H04W52/244 ,  H04W72/1257

摘要： Provided are a method for coordinating inter-cell interference in a radio network, a transmission point and the radio network. The method includes: a step A of a normal base station performing scheduling based on feedback information of users of the normal base station and obtain a user scheduling result of the normal base station including a parameter about actual transmission characteristics of the normal base station; a step B of the normal base station obtaining a performance estimating parameter including a parameter about actual transmission characteristics of each of the one or plurality of low-power base stations for both cases of normal base station without transmission and normal base station with transmission; a step C of the normal base station using the performance estimating parameter and the user scheduling result of the normal base station as a basis to determine weighting throughputs of all transmission points for the case of normal base station without transmission and weighting throughputs of all the transmission points for the case of normal base station with transmission; and a step D of the normal base station comparing the weighting throughputs of all the transmission points, obtaining a transmission determination result and performing data transmission based on the transmission determination result.

摘要翻译： 提供了一种用于协调无线电网络，传输点和无线电网络中的小区间干扰的方法。 该方法包括：正常基站的步骤A，基于正常基站的用户的反馈信息进行调度，获取正常基站的用户调度结果，该结果包括关于正常基站的实际传输特性的参数; 正常基站的步骤B获得包括一个或多个低功率基站中的每个低功率基站的实际传输特性的参数的性能估计参数，用于无传输的普通基站和正常基站的传输; 使用性能估计参数和正常基站的用户调度结果的正常基站的步骤C作为基础来确定在没有传输的情况下的所有发送点的所有发送点的加权吞吐量，以及所有传输的加权吞吐量 正常基站传输点数; 以及正常基站的步骤D，比较所有传输点的加权吞吐量，获得传输确定结果并根据传输确定结果执行数据传输。

公开(公告)号：US20140016533A1

公开(公告)日：2014-01-16

申请号：US14006764

申请日：2012-03-22

申请人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

发明人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

IPC分类号： H04L12/18

CPC分类号： H04L12/1881 ,  H04B7/04 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0035 ,  H04W16/28 ,  H04W24/10 ,  H04W72/046 ,  H04W72/12

摘要： A base station receives channel state information corresponding to each of spare coordinated groups from each of user devices. A first group includes a plurality of coordinated groups arranged in advance. The spare coordinated groups corresponding to each user device are such as selected from the first group and include at least a service sector of best channel quality obtained measurement by the user device. The base station specifies a user device group corresponding to each of coordinated groups contained in each of coordinated group patterns. The user device group corresponding to the coordinated group is formed of user devices having the coordinated group in their spare coordinated groups. The base station uses channel state information reported from the user devices of the user device group corresponding to the coordinated group as a basis to perform user scheduling on the coordinated group.

摘要翻译： 基站从每个用户设备接收对应于每个备用协调组的信道状态信息。 第一组包括预先排列的多个协调组。 与每个用户设备相对应的备用协作组例如从第一组中选择，并且至少包括由用户设备获得的测量获得的最佳信道质量的服务扇区。 基站指定与每个协调组模式中包含的每个协调组对应的用户设备组。 对应于协调组的用户设备组由其备用协调组中具有协调组的用户设备组成。 基站使用从与协作组对应的用户装置组的用户装置报告的信道状态信息作为对协调组进行用户调度的依据。

公开(公告)号：US09544159B2

公开(公告)日：2017-01-10

申请号：US14006764

申请日：2012-03-22

申请人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

发明人： Satoshi Nagata ,  Xiang Yun ,  Lan Chen ,  Xiaoming She ,  Juejia Zhou ,  Hirohito Suda

IPC分类号： H04H20/71 ,  H04L12/18 ,  H04W72/04 ,  H04B7/04 ,  H04B7/06 ,  H04W16/28 ,  H04W24/10 ,  H04W72/12 ,  H04L5/00

CPC分类号： H04L12/1881 ,  H04B7/04 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0035 ,  H04W16/28 ,  H04W24/10 ,  H04W72/046 ,  H04W72/12

摘要： A base station receives channel state information corresponding to each of spare coordinated groups from each of user devices. A first group includes a plurality of coordinated groups arranged in advance. The spare coordinated groups corresponding to each user device are such as selected from the first group and include at least a service sector of best channel quality obtained measurement by the user device. The base station specifies a user device group corresponding to each of coordinated groups contained in each of coordinated group patterns. The user device group corresponding to the coordinated group is formed of user devices having the coordinated group in their spare coordinated groups. The base station uses channel state information reported from the user devices of the user device group corresponding to the coordinated group as a basis to perform user scheduling on the coordinated group.

摘要翻译： 基站从每个用户设备接收对应于每个备用协调组的信道状态信息。 第一组包括预先排列的多个协调组。 与每个用户设备相对应的备用协作组例如从第一组中选择，并且至少包括由用户设备获得的测量获得的最佳信道质量的服务扇区。 基站指定与每个协调组模式中包含的每个协调组对应的用户设备组。 对应于协调组的用户设备组由其备用协调组中具有协调组的用户设备组成。 基站使用从与协作组对应的用户装置组的用户装置报告的信道状态信息作为对协调组进行用户调度的依据。

公开(公告)号：US09307423B2

公开(公告)日：2016-04-05

申请号：US14131370

申请日：2012-07-09

申请人： Satoshi Nagata ,  Jing Wang ,  Yu Jiang ,  Xiaoming She ,  Lan Chen ,  Hirohito Suda

发明人： Satoshi Nagata ,  Jing Wang ,  Yu Jiang ,  Xiaoming She ,  Lan Chen ,  Hirohito Suda

IPC分类号： H04W24/02 ,  H04W16/14 ,  H04W72/08 ,  H04W72/04

CPC分类号： H04W24/02 ,  H04W16/14 ,  H04W72/0426 ,  H04W72/082 ,  Y02D70/122 ,  Y02D70/1262

摘要： Provided are a method for coordinating inter-cell interference in a heterogeneous network (HetNet) and the heterogeneous network. The method includes: forming M normal base stations and low-power nodes within coverage of the respective normal base stations in the heterogeneous network into a coordinated group; combining mute/non-mute states of bandwidths of the M normal base stations to obtain a plurality of states of the coordinated group; a user of each of the normal base stations feeding at least one first CQI back to the normal base station; a user of each of the low-power nodes feeding one or more second CQIs back to the low-power node; using the first CQI and the second CQIs as a basis to make capacity estimation of the coordinated group; and setting the mute/non-mute states of the bandwidths of the M normal base stations in accordance with a state of the coordinated group corresponding to an optimal system capacity so as to perform data transmission. In the method for coordinating interference provided by the present invention, M transmission points each including one or more normal base stations and low-power nodes covered by the respective normal base stations can be formed into a coordinated group, thereby extending processing for the normal base stations up to all the transmission points in the coordinated group.

摘要翻译： 提供了一种用于协调异构网络（HetNet）和异构网络中的小区间干扰的方法。 该方法包括：将异构网络中相应正常基站的覆盖范围内的M个正常基站和低功率节点形成协调组; 组合M个正常基站的静音/非静音带宽，以获得协调组的多个状态; 每个正常基站的用户将至少一个第一CQI馈送回正常基站; 每个低功率节点的用户将一个或多个第二CQI馈送回所述低功率节点; 使用第一CQI和第二CQI作为进行协调组的容量估计的基础; 以及根据与最佳系统容量相对应的协调组的状态来设置M个正常基站的带宽的静音/非静音状态，以执行数据传输。 在本发明提供的干扰协调方法中，可以将由各个正常基站覆盖的一个或多个正常基站和低功率节点组成的M个发送点形成为协调组，从而扩展正常基站的处理 到达协调组中的所有传输点的站。