公开(公告)号：US09049674B2

公开(公告)日：2015-06-02

申请号：US13266292

申请日：2010-04-09

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04B7/005 ,  H04W52/34

CPC分类号： H04B7/0626 ,  H04L5/0051 ,  H04W52/343 ,  H04W72/0473

摘要： A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased.

摘要翻译： 公开了一种用于检测系统中的下行链路接收功率的无线通信系统和方法。 系统中的N个小区通过使用相同的时间 - 频率资源的N个资源块分别向至少一个接收终端发送数据; 在每个资源块中设置相应小区的多信道状态信息参考信号（CSI-RS），并且在所有小区的CSI-RS之间保持正交性，其中N是大于1的整数。所述方法包括： 用于指示接收功率的附加解调参考信号（DM-RS）被设置在与另一个小区的资源块中的CSI-RS集相对应的第一小区的资源块中的删余位置; 并且根据所述附加DM-RS检测所述第一小区的接收功率。 通过使用该方法，可以检测N个小区中的单个小区的接收功率，并且不增加系统开销。

公开(公告)号：US20140071936A1

公开(公告)日：2014-03-13

申请号：US14115325

申请日：2011-09-29

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

IPC分类号： H04L5/00

CPC分类号： H04W72/044 ,  H04L5/0016 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/121

摘要： Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced.

摘要翻译： 提供了使用该方法加扰信号，传输点设备和用户设备的方法。 该方法用于对具有相同时间和频率资源的至少一层资源块的预定无线电资源分配的信号进行加扰，包括以下步骤：通过较高层信令向用户设备发送ID表，ID表为 整个ID空间的子集，并包含用户设备的可用ID; 通过物理层信令或UE特定的较高层信令通知用户设备将要使用的ID表中的ID; 基于通知的ID生成随机种子; 通过随机种子初始化加扰序列; 并用初始化的加扰序列对信号进行加扰。 本发明的方法通过组合物理层信令和较高层信令，可以将所使用的组ID和盲检测空间通知给UE，使得UE能够进行盲检，信令开销降低。

公开(公告)号：US20130039162A1

公开(公告)日：2013-02-14

申请号：US13642336

申请日：2011-03-22

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04J13/10

CPC分类号： H04J13/0003 ,  H04J13/0055 ,  H04J13/0059 ,  H04J13/0062 ,  H04J13/0066 ,  H04J13/007 ,  H04J13/10 ,  H04J13/14

摘要： There are provided a code division multiplexing method as well as a transmitting device and a receiving device using the method. The method performs code division multiplexing of a plurality of signals by using a code matrix, the code matrix comprising a plurality of code words, the number of which is the same as the number of the plurality of signals, with each code word comprising a plurality of chips, the method comprising: multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; and calculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals, wherein, corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero. The code division multiplexing method as well as the transmitting device and the receiving device according to the present disclosure can make the influence of the selectivity of channels when de-multiplexing is performed small, thus improving the channel transmission quality.

摘要翻译： 提供码分复用方法以及使用该方法的发送装置和接收装置。 该方法通过使用码矩阵来执行多个信号的码分复用，码矩阵包括多个码字，其数量与多个信号的数量相同，每个码字包括多个 所述方法包括：分别将相应代码字的每个芯片分别乘以所述多个信号中的每个信号; 并计算每个码字中的各个码片的乘积和相应信号的乘积之和，以形成多个复用信号，其中相应码字的相应码片构成多组码片，并且只有一个项目的差值或 其他芯片组中的任何一组芯片和一组芯片不为零。 根据本公开的码分复用方法以及发送装置和接收装置可以在进行解复用时使通道的选择性受到影响，从而提高信道传输质量。

公开(公告)号：US20120113842A1

公开(公告)日：2012-05-10

申请号：US13266292

申请日：2010-04-09

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04W24/00

CPC分类号： H04B7/0626 ,  H04L5/0051 ,  H04W52/343 ,  H04W72/0473

摘要： A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased.

摘要翻译： 公开了一种用于检测系统中的下行链路接收功率的无线通信系统和方法。 系统中的N个小区通过使用相同的时间 - 频率资源的N个资源块分别向至少一个接收终端发送数据; 在每个资源块中设置相应小区的多信道状态信息参考信号（CSI-RS），并且在所有小区的CSI-RS之间维持正交性，其中N是大于1的整数。所述方法包括： 用于指示接收功率的附加解调参考信号（DM-RS）被设置在与另一个小区的资源块中的CSI-RS集相对应的第一小区的资源块中的删余位置; 并且根据所述附加DM-RS检测所述第一小区的接收功率。 通过使用该方法，可以检测N个小区中的单个小区的接收功率，并且不增加系统开销。

公开(公告)号：US09306712B2

公开(公告)日：2016-04-05

申请号：US14115325

申请日：2011-09-29

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio

IPC分类号： H04L5/00 ,  H04L25/02

CPC分类号： H04W72/044 ,  H04L5/0016 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/121

摘要： Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced.

摘要翻译： 提供了使用该方法加扰信号，传输点设备和用户设备的方法。 该方法用于对具有相同时间和频率资源的至少一层资源块的预定无线电资源分配的信号进行加扰，包括以下步骤：通过较高层信令向用户设备发送ID表，ID表为 整个ID空间的子集，并包含用户设备的可用ID; 通过物理层信令或UE特定的较高层信令通知用户设备将要使用的ID表中的ID; 基于通知的ID生成随机种子; 通过随机种子初始化加扰序列; 并用初始化的加扰序列对信号进行加扰。 本发明的方法通过组合物理层信令和较高层信令，可以将所使用的组ID和盲检测空间通知给UE，使得UE能够进行盲检，信令开销降低。

公开(公告)号：US09077471B2

公开(公告)日：2015-07-07

申请号：US13642336

申请日：2011-03-22

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04J13/00 ,  H04J13/10 ,  H04J13/14

CPC分类号： H04J13/0003 ,  H04J13/0055 ,  H04J13/0059 ,  H04J13/0062 ,  H04J13/0066 ,  H04J13/007 ,  H04J13/10 ,  H04J13/14

摘要： There are provided a code division multiplexing method as well as a transmitting device and a receiving device using the method. The method performs code division multiplexing of a plurality of signals by using a code matrix, the code matrix comprising a plurality of code words, the number of which is the same as the number of the plurality of signals, with each code word comprising a plurality of chips, the method comprising: multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; and calculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals, wherein, corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero. The code division multiplexing method as well as the transmitting device and the receiving device according to the present disclosure can make the influence of the selectivity of channels when de-multiplexing is performed small, thus improving the channel transmission quality.

摘要翻译： 提供码分复用方法以及使用该方法的发送装置和接收装置。 该方法通过使用码矩阵来执行多个信号的码分复用，码矩阵包括多个码字，其数量与多个信号的数量相同，每个码字包括多个 所述方法包括：分别将相应代码字的每个芯片分别乘以所述多个信号中的每个信号; 并计算每个码字中的各个码片的乘积和相应信号的乘积之和，以形成多个复用信号，其中相应码字的相应码片构成多组码片，并且只有一个项目的差值或 其他芯片组中的任何一组芯片和一组芯片不为零。 根据本公开的码分复用方法以及发送装置和接收装置可以在进行解复用时使通道的选择性受到影响，从而提高信道传输质量。

公开(公告)号：US20120115539A1

公开(公告)日：2012-05-10

申请号：US13257181

申请日：2010-03-17

申请人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

发明人： Zhi Zhang ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Miyoshi ,  Megumi Ichikawa

IPC分类号： H04W56/00 ,  H04W4/00

CPC分类号： H04W56/0045 ,  Y02D70/1262

摘要： A method and device for adjusting a timing advance in a communication system composed of a mobile terminal and multiple base stations is provided. The method includes steps: the multiple base stations measures channel latencies and powers of channel responses between the mobile terminal and the multiple base stations separately; the non-serving base station in the multiple base stations reports the channel latency and the power measured to a serving base station; and the serving base station determines the timing advance of the uplink of the mobile terminal according to the channel latency and the power received and the channel latency and the power which are measured by the serving base station itself, and informs the mobile base station of the timing advance. By using the method and the device, the useful power received by the uplink multi-base stations can be optimized, and the interference power can be effectively reduced.

摘要翻译： 提供了一种用于调整由移动终端和多个基站组成的通信系统中的定时提前的方法和装置。 该方法包括以下步骤：多个基站分别测量移动终端与多个基站之间的信道响应的信道延迟和功率; 多个基站中的非服务基站向服务基站报告信道延迟和测量的功率; 并且服务基站根据信道等待时间和接收的功率以及由服务基站本身测量的信道延迟和功率来确定移动终端的上行链路的定时提前，并且向移动基站通知 时间提前。 通过使用该方法和装置，可以优化上行链路多基站接收到的有用功率，并且能够有效地降低干扰功率。

公开(公告)号：US08768261B2

公开(公告)日：2014-07-01

申请号：US13257692

申请日：2010-03-19

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04B1/00 ,  H04B17/00 ,  H04B1/10

CPC分类号： H04W52/243 ,  H04W24/10 ,  H04W52/143 ,  H04W88/08

摘要： A method for reducing interferences between base stations in a communication system having a plurality of base stations. This method comprises the steps of: causing a user station to receive both a signal transmitted by a local-cell base station and a signal transmitted by an adjacent-cell base station, thereby measuring the SNR of the interfered link and the SNR of the leak link of the adjacent-cell base station; calculating a weighting factor of a leak power based on the measured SNR of the interfered link and the measured SNR of the leak link of the adjacent-cell base station; and determining, based on the calculated weighting factor, whether or not the leak power has to be suppressed and to what degree such suppression has to be performed.

摘要翻译： 一种用于减少具有多个基站的通信系统中的基站之间的干扰的方法。 该方法包括以下步骤：使用户站接收由本地小区基站发送的信号和由相邻小区基站发送的信号，从而测量被干扰链路的SNR和泄漏的SNR 相邻小区基站的链路; 基于受干扰链路的测量SNR和相邻小区基站的泄漏链路的测量SNR来计算泄漏功率的加权因子; 以及基于所计算的加权因子来确定是否必须抑制泄漏功率以及必须在多大程度上执行这种抑制。

公开(公告)号：US20130308488A1

公开(公告)日：2013-11-21

申请号：US13981589

申请日：2011-03-31

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/0031 ,  H04W52/0238 ,  Y02D70/1262 ,  Y02D70/444

摘要： There are provided a method, user equipment, and transmission point device for feeding back channel quality indicator (MU-CQI) to the transmission point in a communication system including the transmission point and a plurality of user equipments, the method comprising steps: the transmission point sending a message to an intended user equipment of the plurality of user equipments; and the intended user equipment calculating the MU-CQI based on the message, and feeding back the MU-CQI to the transmission point. The present disclosure enables dynamic MU operation, and improves link adaptation performance with marginal downlink overhead. And the accuracy is not limited by codebook size.

摘要翻译： 提供了一种在包括传输点和多个用户设备的通信系统中向传输点反馈信道质量指示符（MU-CQI）的方法，用户设备和传输点设备，所述方法包括步骤： 向所述多个用户设备的预定用户设备发送消息; 以及基于该消息来计算MU-CQI的目标用户设备，并将MU-CQI反馈到传输点。 本公开使得能够进行动态MU操作，并且利用边际下行链路开销改善链路适配性能。 并且准确性不受码本大小的限制。

公开(公告)号：US20120040701A1

公开(公告)日：2012-02-16

申请号：US13257692

申请日：2010-03-19

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04W24/02

CPC分类号： H04W52/243 ,  H04W24/10 ,  H04W52/143 ,  H04W88/08

摘要： A method for reducing interferences between base stations in a communication system having a plurality of base stations. This method comprises the steps of: causing a user station to receive both a signal transmitted by a local-cell base station and a signal transmitted by an adjacent-cell base station, thereby measuring the SNR of the interfered link and the SNR of the leak link of the adjacent-cell base station; calculating a weighting factor of a leak power based on the measured SNR of the interfered link and the measured SNR of the leak link of the adjacent-cell base station; and determining, based on the calculated weighting factor, whether or not the leak power has to be suppressed and to what degree such suppression has to be performed.

摘要翻译： 一种用于减少具有多个基站的通信系统中的基站之间的干扰的方法。 该方法包括以下步骤：使用户站接收由本地小区基站发送的信号和由相邻小区基站发送的信号，从而测量被干扰链路的SNR和泄漏的SNR 相邻小区基站的链路; 基于受干扰链路的测量SNR和相邻小区基站的泄漏链路的测量SNR来计算泄漏功率的加权因子; 以及基于所计算的加权因子来确定是否必须抑制泄漏功率以及必须在多大程度上执行这种抑制。