公开(公告)号：US08797993B2

公开(公告)日：2014-08-05

申请号：US13378124

申请日：2010-04-12

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

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

IPC分类号： H04W4/00 ,  H04B7/04

CPC分类号： H04B7/046 ,  H04B7/0408 ,  H04B7/0413

摘要： The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance.

摘要翻译： 本发明提供了一种在空分多址通信系统中叠加数据信号和参考信号的方法，该通信系统的基站使用相同的时间/频率资源向终端发送第一层资源块和另一层资源块 所述第一层资源块中的参考信号和所述另一层资源块中的参考信号彼此正交，所述方法包括将在所述第一层资源块中发送的数据信号叠加在所述第一层资源块中的参考信号的位置， 与第一层资源块中的参考信号的扩展序列正交的叠加数据信号的扩展序列。 本发明可以有效地利用在多用户MIMO系统下消耗的资源，并且显着提高系统性能。

公开(公告)号：US08787275B2

公开(公告)日：2014-07-22

申请号：US13122950

申请日：2009-10-30

申请人： Akihiko Nishio ,  Seigo Nakao ,  Daichi Imamura ,  Masayuki Hoshino

发明人： Akihiko Nishio ,  Seigo Nakao ,  Daichi Imamura ,  Masayuki Hoshino

IPC分类号： H04L1/00 ,  H04W72/04 ,  H04L5/00

CPC分类号： 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

摘要： 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.

摘要翻译： 公开了即使在下行链路电路上专门进行宽带传输的情况下，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。

公开(公告)号：US08705507B2

公开(公告)日：2014-04-22

申请号：US13122572

申请日：2009-10-21

申请人： Masayuki Hoshino ,  Ayako Horiuchi ,  Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio ,  Yoshihiko Ogawa

发明人： Masayuki Hoshino ,  Ayako Horiuchi ,  Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio ,  Yoshihiko Ogawa

IPC分类号： H04B7/212

CPC分类号： H04J11/0023 ,  H04B7/0671 ,  H04J13/004 ,  H04J13/0059 ,  H04J13/0074 ,  H04J13/18 ,  H04J13/22 ,  H04L1/06 ,  H04L1/1692 ,  H04L1/1861

摘要： The present invention makes it possible to obtain the transmission diversity effect by applying a CDD while reducing the inter-code interference when performing a code multiplexing. When an Ack/Nack signal is transmitted from a user terminal to a base station in an upstream control channel by using an Ack/Nack resource, the signal is code-multiplexed by using a code sequence containing an orthogonal sequence and a cyclic-shifted sequence and transmitted from a plurality of user terminals to the base station. Upon using an aggregation size indicating the number of control signals of the downstream control channel, if the aggregation size is greater than one, it is determined that no resource located at the right of the axis of the cyclic-shifted amount of the cyclic-shifted sequence in the same orthogonal code of the orthogonal sequence is used, and the Ack/Nack signal to which CDD is applied from a plurality of antennas is transmitted by using a resource ACK #0 allocated to the own device and an unused resource ACK #1, which have the same orthogonal code, but have different cyclic-shifted amounts.

摘要翻译： 本发明通过在执行码复用时减少码间干扰同时应用CDD可以获得发送分集效果。 当Ack / Nack信号通过使用Ack / Nack资源从用户终端发送到上行控制信道中的基站时，通过使用包含正交序列和循环移位序列的码序列对信号进行码复用 并从多个用户终端发送到基站。 当使用指示下游控制信道的控制信号数量的聚合大小时，如果聚合大小大于1，则确定不存在位于循环移位量的循环移位量的轴右侧的资源 使用正交序列的相同正交码中的序列，并且通过使用分配给自身设备的资源ACK＃0和未使用的资源ACK＃1来发送从多个天线施加CDD的Ack / Nack信号 ，其具有相同的正交码，但具有不同的循环移位量。

公开(公告)号：US08681602B2

公开(公告)日：2014-03-25

申请号：US13498287

申请日：2010-08-03

申请人： Seigo Nakao ,  Akihiko Nishio ,  Ayako Horiuchi ,  Daichi Imamura

发明人： Seigo Nakao ,  Akihiko Nishio ,  Ayako Horiuchi ,  Daichi Imamura

IPC分类号： G01R31/08

CPC分类号： H04W72/0413 ,  H04L1/0061 ,  H04L1/08 ,  H04L1/1671 ,  H04L1/1854 ,  H04W28/04 ,  H04W52/0212 ,  H04W72/04 ,  H04W72/1278 ,  H04W72/1284 ,  H04W76/28 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/25

摘要： Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.

摘要翻译： 提供一种终端装置和重发控制方法，即使使用信道选择作为在使用多个的载波聚合通信的载波聚合通信期间发送响应信号的方法，也可以使上行链路控制信道（PUCCH）的开销的上升最小化 下行单位频带。 基于上行链路数据的生成状态和由CRC单元获得的错误检测结果，所提供的终端中的控制单元使用响应信号传输规则来控制响应信号的传输或指示上行链路的生成的上行链路控制信号 数据。 如果在相同传输时间单元内同时产生上行链路控制信号和响应信号，则控制单元根据响应信号的数量和位置来改变响应信号和/或响应信号的相位点的资源 错误检测结果模式。

公开(公告)号：US08467432B2

公开(公告)日：2013-06-18

申请号：US13571207

申请日：2012-08-09

申请人： Sadaki Futagi ,  Seigo Nakao ,  Daichi Imamura

发明人： Sadaki Futagi ,  Seigo Nakao ,  Daichi Imamura

IPC分类号： H04B1/00

CPC分类号： H04L1/0026 ,  H04B1/7103 ,  H04B7/0626 ,  H04J13/0062 ,  H04J13/0074 ,  H04J13/102 ,  H04J13/18 ,  H04L1/1671 ,  H04L5/0016 ,  H04L5/0055 ,  H04L5/0057 ,  H04L25/03828 ,  H04L2001/125 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1226 ,  H04W88/02 ,  H04W88/08

摘要： Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.

公开(公告)号：US20130148623A1

公开(公告)日：2013-06-13

申请号：US13818417

申请日：2011-08-19

申请人： Akihiko Nishio ,  Seigo Nakao ,  Ayako Horiuchi ,  Hidenori Matsuo ,  Daichi Imamura

发明人： Akihiko Nishio ,  Seigo Nakao ,  Ayako Horiuchi ,  Hidenori Matsuo ,  Daichi Imamura

IPC分类号： H04W72/04

CPC分类号： H04W72/0406 ,  H04B7/04 ,  H04L1/0038 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1896 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/042

摘要： Provided are a base station, a terminal whereby erroneous detection of control information can be reduced to prevent the degradation of the system throughput. A PDCCH generation unit (104) forms a downstream allocation control information unit (i.e., DCI) including cyclic redundant check (CRC) bits, which have been masked or scrambled by use of ID information of a terminal (200), and further including a bit sequence (i.e., virtual CRC) known between the terminal (200) and the base station; and an allocation unit (108) and a multiplex unit (109) map the formed DCI to a resource region (i.e., R-PDCCH region) that can be used as any one of a downstream control channel region and a downstream data channel region. That is, the PDCCH generation unit (104) includes the virtual CRC into the DCI only when the DCI addressed to the terminal (200) is mapped to the R-PDCCH region.

摘要翻译： 提供了一种基站，其中可以减少控制信息的错误检测以防止系统吞吐量的恶化。 PDCCH生成单元（104）形成包含循环冗余校验（CRC）比特的下行分配控制信息单元（即，DCI），所述循环冗余校验已被使用终端（200）的ID信息进行了掩蔽或加密，并且还包括 在终端（200）和基站之间已知的比特序列（即虚拟CRC）; 以及分配单元（108）和复用单元（109）将形成的DCI映射到可以用作下游控制信道区域和下游数据信道区域中的任一个的资源区域（即，R-PDCCH区域）。 也就是说，仅当寻址到终端（200）的DCI被映射到R-PDCCH区域时，PDCCH生成单元（104）才将虚拟CRC包括到DCI中。

公开(公告)号：US20130094349A1

公开(公告)日：2013-04-18

申请号：US13805529

申请日：2011-06-21

申请人： Masayuki Hoshino ,  Takashi Iwai ,  Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio

发明人： Masayuki Hoshino ,  Takashi Iwai ,  Seigo Nakao ,  Daichi Imamura ,  Akihiko Nishio

IPC分类号： H04B7/04

CPC分类号： H04B7/0482 ,  H04B7/0486 ,  H04L1/06 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0055 ,  H04L25/03942

摘要： This invention provides a terminal apparatus that can suppress the quality degradation caused by a propagation path variation when implementing a retransmission control method using non-adaptive HARQ in a wireless communication system utilizing the MIMO communication technique. In this apparatus, a number-of-retransmissions counting unit (105) counts a number of retransmission requests (L) for the same code word. A predetermined precoder designating unit (106) changes precoders between when the number of retransmission requests (L) is less than N and when the number of retransmission requests (L) is equal to or greater than N plus one. A PDCCH generation unit (211) determines, based on a result of comparison between the number of retransmission requests (L) for the same CW and the number of retransmission requests (N) established for the change of precoders, a precoder to be used by terminals, and further allocates, based on the determined precoder, resources to the plurality of terminals.

摘要翻译： 本发明提供一种能够在利用MIMO通信技术的无线通信系统中实现使用非自适应HARQ的重发控制方法时能够抑制由传播路径变化引起的质量劣化的终端装置。 在该装置中，重发次数计数单元（105）对相同码字的重发请求数（L）进行计数。 预定的预编码器指定单元（106）在重发请求数（L）小于N时，当重传请求数（L）等于或大于N加1时，改变预编码器。 PDCCH生成单元（211）基于相同CW的重发请求（L）的数量与为改变预编码器而建立的重发请求数（N）的比较结果，确定由 终端，并且基于所确定的预编码器进一步分配资源给多个终端。

公开(公告)号：US08422533B2

公开(公告)日：2013-04-16

申请号：US13397588

申请日：2012-02-15

申请人： Seigo Nakao ,  Daichi Imamura

发明人： Seigo Nakao ,  Daichi Imamura

IPC分类号： H04B1/00

CPC分类号： H04L1/1893 ,  H04J13/0003 ,  H04J13/0059 ,  H04J13/0074 ,  H04J13/22 ,  H04L1/0061 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1896 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/0091 ,  H04L25/03866 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04L2001/125 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042

摘要： Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code “1” or “e−j(π/2)” so as to rotate a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a Zero Auto Correlation (ZAC) sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).

摘要翻译： 提供一种能够使应答（ACK）接收质量和否定确认（NACK）接收质量彼此相等的无线通信装置。 该装置包括：加扰单元（214），其通过扰码1或e-j（＆pgr / / 2）对调制后的响应信号进行乘法，以便在循环移位轴上旋转每个响应信号的星座图; 扩展单元（215），其通过使用由控制单元（209）设置的零自动相关（ZAC）序列来执行所述响应信号的初级扩展; 以及扩展单元（218），其通过使用由所述控制单元（209）设置的块式扩展码序列来执行经过所述主扩展之后的所述响应信号的二次扩展。

公开(公告)号：US20120287886A1

公开(公告)日：2012-11-15

申请号：US13521550

申请日：2011-01-28

申请人： Masaru Fukuoka ,  Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Sadaki Futagi ,  Tomofumi Takata

发明人： Masaru Fukuoka ,  Takashi Iwai ,  Akihiko Nishio ,  Daichi Imamura ,  Seigo Nakao ,  Sadaki Futagi ,  Tomofumi Takata

IPC分类号： H04W72/02

CPC分类号： H04L5/003 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/001 ,  H04W28/04 ,  H04W72/02 ,  H04W88/08

摘要： Disclosed is a base station which can prevent degradation in the reception characteristics of nearby cells when carrier aggregation and channel selection are applied. In accordance with the resistance to interference of a plurality of uplink component carriers of a femtocell, a response protocol controller (101) in a base station (100) changes combination rules for the uplink component carriers and signal points which a terminal (200) in a microcell covered by the base station (100) uses in the feedback of a response signal. Information in relation to the combination rules is notified to the terminal (200). A controller (217) in the terminal (200) changes the combination rules for the uplink component carriers and the signal points of the microcell covered by the base station (100) in accordance with the information notified from the base station (100), and controls transmission of the response signal in accordance with said rules.

摘要翻译： 公开了当应用载波聚合和信道选择时，可以防止附近小区的接收特性的劣化的基站。 根据毫微微小区的多个上行链路分量载波的抗干扰性，基站（100）中的响应协议控制器（101）改变上行链路分量载波和终端（200）中的信号点的组合规则 由基站（100）覆盖的微小区在响应信号的反馈中使用。 关于组合规则的信息被通知给终端（200）。 终端（200）中的控制器（217）根据从基站（100）通知的信息改变基站（100）覆盖的上行链路分量载波和微小区的信号点的组合规则，以及 根据所述规则控制响应信号的传输。

公开(公告)号：US08295221B2

公开(公告)日：2012-10-23

申请号：US12744775

申请日：2008-11-17

申请人： Atsushi Matsumoto ,  Ayako Horiuchi ,  Daichi Imamura ,  Seigo Nakao

发明人： Atsushi Matsumoto ,  Ayako Horiuchi ,  Daichi Imamura ,  Seigo Nakao

IPC分类号： H04B7/14

CPC分类号： H04L1/0057 ,  H04B7/15521 ,  H04B7/2606 ,  H04L1/0083 ,  H04L2001/0097 ,  H04W88/04

摘要： There are provided a wireless transmitting apparatus and a wireless transmission method that enable reduction of transmission delay of a system by enhancing receiving performance achieved during transmission of network-coded data. A decoding section 18 subjects a demodulated signal to error correction decoding and outputs the decoded signal to a buffer 17. The buffer 17 holds a data packet for a given period of time and outputs the packet to an encoding section 12. An encoding control section 11 controls an encoding rate for transmission data and outputs control information to the encoding section 12. In accordance with control information from the encoding control section 11, the encoding section 12 subjects a data packet to error correction encoding and outputs the coded data packet to a coding section 13. The coding section 13 subjects data sequences that pair up with each other to XOR processing and outputs a processing result to a modulation section 14. A wireless transmission section 15 subjects a modulated signal to transmission processing, such as digital-to-analogue conversion, up-conversion, and amplification, and transmits the signal subjected to transmission processing from an antenna 16 through wireless communication.

摘要翻译： 提供了一种无线发送装置和无线传输方法，其能够通过增强在网络编码数据的传输期间实现的接收性能来减少系统的传输延迟。 解码部分18对解调的信号进行纠错解码，并将解码的信号输出到缓冲器17.缓冲器17保持数据分组一段给定的时间段，并将该分组输出到编码部分12.编码控制部分11 控制发送数据的编码率并将控制信息输出到编码部分12.根据来自编码控制部分11的控制信息，编码部分12对数据分组进行纠错编码，并将编码数据分组输出到编码 编码部13将彼此配对的数据序列进行异或处理，并将处理结果输出到调制部14.无线发送部15将调制信号进行发送处理，例如数字到模拟 转换，上变频和放大，并且通过导线从天线16发送经过发送处理的信号 沟通较少