公开(公告)号：US20150245331A1

公开(公告)日：2015-08-27

申请号：US14698372

申请日：2015-04-28

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Masayuki HOSHINO ,  Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W72/044 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/1829 ,  H04L1/20 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0094 ,  H04L25/0224 ,  H04W72/0406 ,  H04W72/1215

Abstract: Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information.

公开(公告)号：US20150229379A1

公开(公告)日：2015-08-13

申请号：US14690721

申请日：2015-04-20

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Zhi ZHANG ,  Ming XU ,  Masayuki HOSHINO ,  Daichi IMAMURA

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04L5/0051 ,  H04W52/343 ,  H04W72/0473

Abstract: 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.

Abstract translation: 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：US20150085809A1

公开(公告)日：2015-03-26

申请号：US14556938

申请日：2014-12-01

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Masayuki HOSHINO ,  Seigo Nakao ,  Daichi Imamura

IPC: H04L5/00

Abstract: A data alignment method capable of preventing degradation in demodulation performance due to variation in signal qualities when a data signal to which a Turbo code is applied is transmitted simultaneously from a plurality of cells. The method divides signal components to be used for data alignment into resources common to all the cells and resources dependent on the cells and transmits encoded and rate-matched data with the first half thereof aligned to the resources common to all the cells and the second half thereof aligned to the resources dependent on the cells.

Abstract translation: 当从多个单元同时传输当应用了Turbo码的数据信号时，能够防止由信号质量的变化引起的解调性能的劣化的数据对准方法。 该方法将用于数据对准的信号分量划分为所有小区和取决于小区的资源共有的资源，并发送编码和速率匹配的数据，其前半部分与所有小区共同的资源对准，下半部分 其对应于依赖于小区的资源。

公开(公告)号：US20140347971A1

公开(公告)日：2014-11-27

申请号：US14455236

申请日：2014-08-08

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Zhi ZHANG ,  Ming XU ,  Masayuki HOSHINO ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04L5/00

CPC classification number: H04J13/004 ,  H04J13/0048 ,  H04J13/12 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0066 ,  H04L43/087

Abstract: The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.

Abstract translation: 本公开提供了一种基于正交码的码分复用方法，其通过使用正交矩阵来执行多层资源块中的解调参考信号的码分复用，所述方法包括：改变第一正交矩阵的特定行中的码片的顺序 以获得具有改变的码片顺序的第二正交矩阵; 并将第二正交矩阵的各行中的码片乘以相应于时间方向的资源块的相应层中的解调参考信号，以获得码分复用信号。 本公开的技术方案可以提高下行链路信号的功率抖动情况，从而可以提高基站侧的功率放大器的使用效率。

公开(公告)号：US20140334328A1

公开(公告)日：2014-11-13

申请号：US14338246

申请日：2014-07-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hui TONG ,  Ming XU ,  Masayuki HOSHINO ,  Daichi IMAMURA

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/082 ,  H04W72/085 ,  Y02D70/1262 ,  Y02D70/146

Abstract: A method and a system of setting up a reference signal in a radio communication system are disclosed. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource to receive a serving resource block from the serving cell and an interference resource block from the neighboring cell. The method includes setting up a user-specific reference signal in the interference resource block and puncturing at the same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system are used and the interference power between cells is measured, it is possible to effectively reduce feedback overhead in a coordinated beamforming.

Abstract translation: 公开了一种在无线电通信系统中建立参考信号的方法和系统。 无线电通信系统包括服务小区和相邻小区，并且服务小区的移动终端使用相同的时间频率资源从服务小区接收服务资源块和来自相邻小区的干扰资源块。 该方法包括在干扰资源块中设置用户特定参考信号，并在与服务资源块的干扰资源块上建立用户特定参考信号的时间频率位置相同的时间频率位置进行删截 以防止在穿孔的时间频率位置发送任何信号。 当使用方法和系统并且测量小区之间的干扰功率时，可以有效地减少协调波束形成中的反馈开销。

公开(公告)号：US20140307536A1

公开(公告)日：2014-10-16

申请号：US14312473

申请日：2014-06-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yoshihiko OGAWA ,  Seigo NAKAO ,  Akihiko NISHIO ,  Masayuki HOSHINO ,  Daichi IMAMURA ,  Atsushi SUMASU

IPC: H04W28/04 ,  H04W48/02 ,  H04W48/12

CPC classification number: H04W48/02 ,  H04B7/0413 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/1671 ,  H04L1/1861 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/04 ,  H04W48/12

Abstract: A terminal and a communication method thereof whereby, even in a case of employing the asymmetric carrier aggregation system and further employing the MIMO transmission method for upstream channels, the error characteristic of control information can be prevented from being degraded. In the terminal, a transport signal forming unit forms transport signals by arranging, based on an arrangement rule, ACK/NACK and CQI in a plurality of layers. According to the arrangement rule, an error detection result is arranged, on a priority basis, in a layer that is different from a layer in which the channel quality information is arranged. In this way, the puncturing of CQI using ACK/NACK can be minimized, with the result that the error characteristic of control information can be prevented from being degraded.

Abstract translation: 一种终端及其通信方法，即使在采用非对称载波聚合系统并进一步采用上行信道的MIMO传输方法的情况下，可以防止控制信息的误差特性降低。 在终端中，传输信号形成单元通过基于布置规则排列多层中的ACK / NACK和CQI来形成传输信号。 根据该排列规则，在与布置信道质量信息的层不同的层中优先配置错误检测结果。 以这种方式，可以将使用ACK / NACK的CQI的删截最小化，从而可以防止控制信息的错误特性劣化。

公开(公告)号：US20140293935A1

公开(公告)日：2014-10-02

申请号：US14306011

申请日：2014-06-16

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Akihiko NISHIO ,  Seigo NAKAO ,  Daichi IMAMURA ,  Masayuki HOSHINO

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0038 ,  H04L1/0046 ,  H04L1/0072 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/0094 ,  H04W28/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/0433 ,  H04W72/0453 ,  H04W74/085

Abstract: Disclosed is wireless communication base station equipment in which CCE allocation can be flexibly performed without collision of ACK/NACK signals between a plurality of unit bands, even when wideband transmission is performed exclusively on a downlink circuit. In this equipment, an allocation unit (105) sets up mutually different search spaces for each of a plurality of downlink unit bands, with respect to wireless communication terminal devices that communicate using a plurality of downlink unit bands, and allocates resource allocation information of downlink circuit data destined for the wireless communication terminal devices to CCEs in mutually different search spaces for each of the plurality of downlink unit bands, and an ACK/NACK reception unit (119); extracts a response signal in respect of the downlink circuit data from the uplink control channel associated with the CCE to which the resource allocation information of this downlink circuit data was allocated.

Abstract translation: 公开了即使在下行链路电路上专门进行宽带发送的情况下，也可以灵活地执行CCE分配而不会在多个单位频带之间发生ACK / NACK信号的冲突的无线通信基站设备。 在该设备中，对于使用多个下行链路单位频带进行通信的无线通信终端装置，分配单元（105）为多个下行链路单位频带中的每一个设置相互不同的搜索空间，并且分配下行链路的资源分配信息 多个下行单位频带中的每一个的不同搜索空间中的无线通信终端装置的CCE的电路数据和ACK / NACK接收单元（119）; 从与分配了该下行链路电路数据的资源分配信息的CCE相关联的上行链路控制信道中提取关于下行链路电路数据的响应信号。