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公开(公告)号：US09380574B2
公开(公告)日：2016-06-28
申请号：US14996183
申请日：2016-01-14
Inventor： Akihiko Nishio , Seigo Nakao
CPC classification number: H04W72/0406 , H04L5/00 , H04L5/0007 , H04L5/0053 , H04L5/0055 , H04W72/04 , H04W72/0413 , H04W72/042
Abstract: A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part allocates allocation information allocated to a PDCCH received from modulation parts to a particular one of a plurality of search spaces that is corresponding to a CCE aggregation size of the PDCCH. A placement part then places the allocation information in one of downstream line resources, reserved for the PDCCH, that is corresponding to the CCE of the particular search space to which the allocation information has been allocated. A radio transmission part then transmits an OFDM symbol, in which the allocation information has been placed, to the mobile station from an antenna.
Abstract translation: 能够减少移动台的盲解码次数的无线通信基站装置，而不会增加由通知信息引起的开销。 在该装置中，CCE分配部将从调制部接收的PDCCH分配给与PDCCH的CCE聚合大小对应的多个搜索空间中的特定一个的分配信息。 然后，放置部分将分配信息放置在与PDCCH分配的特定搜索空间的CCE相对应的下行线路资源中，该分配信息被分配给分配信息。 然后，无线发送部从天线向移动台发送其中已分配信息的OFDM符号。
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公开(公告)号：US20160088598A1
公开(公告)日：2016-03-24
申请号：US14959754
申请日：2015-12-04
Inventor： Seigo Nakao , Akihiko Nishio , Masayuki Hoshino , Ayako Horiuchi
CPC classification number: H04W72/042 , H04L1/0029 , H04L1/08 , H04L1/1607 , H04L1/1854 , H04L1/1861 , H04L5/001 , H04L5/0053 , H04L5/0055 , H04W28/06 , H04W28/12 , H04W76/28
Abstract: Provided are a communication apparatus and a method for receiving a response signal transmitted from a terminal configured with one or more downlink component carriers. The communication apparatus includes a transmitting section and a receiving section. The transmitting section is configured to transmit, to the terminal, downlink assignment information indicating one or more resources for downlink data, each of the one or more resources being assigned to one of the one or more downlink component carrier(s), and configured to transmit the downlink data to the terminal. The receiving section is configured to receive one or more response signals for the downlink data, which are transmitted from the terminal. The terminal makes the phase points of the response signals different in accordance with a number of downlink data which has been successively received.
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公开(公告)号：US20160065347A1
公开(公告)日：2016-03-03
申请号：US14935211
申请日：2015-11-06
Inventor： Seigo Nakao , Daichi Imamura
CPC classification number: 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
Abstract: 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).
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公开(公告)号：US20160057739A1
公开(公告)日：2016-02-25
申请号：US14930285
申请日：2015-11-02
Inventor： Seigo Nakao , Akihiko Nishio , Daichi Imamura
CPC classification number: H04W72/042 , H04L1/1822 , H04L5/001 , H04L5/0023 , H04L5/0055 , H04L5/0094 , H04W4/06 , H04W72/0413 , H04W72/0453
Abstract: Disclosed is a base station in which the frequency usage efficiency can be improved when the communication bandwidths are asymmetric in the uplink line and the downlink line. A base station can communicate by using a plurality of downlink unit bands and a smaller number of uplink unit bands. A control unit allocates uplink resource allocation information and downlink resource allocation information to a PDCCH which is arranged in each of the plurality of downlink unit bands, and allocates a response signal to the uplink line data to a PHICH which is arranged in the same number of downlink unit bands from the plurality of downlink unit bands as there are uplink unit bands. A transmit RF unit transmits the resource allocation information or the response signal.
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公开(公告)号：US09246657B2
公开(公告)日：2016-01-26
申请号：US14595136
申请日：2015-01-12
Inventor： Akihiko Nishio , Seigo Nakao , Daichi Imamura , Masayuki Hoshino
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.
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Patent Agency Ranking
96.发明申请公开(公告)号：US20160014788A1
公开(公告)日：2016-01-14
申请号：US14858333
申请日：2015-09-18
Inventor： Tomofumi Takata , Daichi Imamura , Seigo Nakao , Sadaki Futagi , Takashi Iwai , Yoshihiko Ogawa
CPC classification number: H04L5/0048 , H04B7/0632 , H04J11/00 , H04J13/0003 , H04J13/0055 , H04J13/0059 , H04J13/0074 , H04J13/10 , H04L5/0007 , H04L5/0057 , H04L25/0204 , H04L25/0208 , H04L25/0228 , H04L27/2695 , H04W72/0413 , H04W72/0446 , H04W72/082 , H04W88/02
Abstract: It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit stores a phase table which correlates the amount of cyclic shift to complex coefficients {w1, w2} to be multiplied on the reference signal. A complex coefficient multiplication unit reads out a complex coefficient corresponding to the amount of cyclic shift indicated by resource allocation information, from the phase table storage unit and multiplies the read-out complex coefficient on the reference signal so as to change the phase relationship between the reference signals in a slot.
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97.发明申请TERMINAL STATION APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND CONTROL METHOD 有权终端站装置，基站装置，传输方法和控制方法公开(公告)号：US20150381257A1
公开(公告)日：2015-12-31
申请号：US14848149
申请日：2015-09-08
Inventor： Yoshihiko Ogawa , Akihiko Nishio , Takashi Iwai , Seigo Nakao , Daichi Imamura , Atsushi Sumasu
CPC classification number: H04J11/003 , H04B7/0452 , H04B7/0689 , H04J13/0048 , H04J13/18 , H04L5/005 , H04W72/042 , H04W72/1226 , H04W88/02 , H04W88/08
Abstract: A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus: a pilot information deciding unit decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis.
Abstract translation: 公开了一种终端装置，其中即使在同时应用SU-MIMO和MU-MIMO的情况下，同一终端使用的多个导频信号中的序列间干扰也可以被抑制到较低的值，而 终端之间的导频信号中的序列间干扰可以减少。 在该终端装置中：导频信息决定部基于分配控制信息，决定第一和第二流组中的至少一个流中的至少一个包括多个流的沃尔什序列; 并且导频信号生成单元通过使用所确定的沃尔什序列形成传输信号，以扩展包括在第一和第二流组中的流。 在此期间，在第一和第二流组中建立彼此正交的沃尔什序列，并且以流逐群分组为基础分配用户。
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公开(公告)号：US20150341154A1
公开(公告)日：2015-11-26
申请号：US14818071
申请日：2015-08-04
Inventor： Seigo Nakao , Daichi Imamura
CPC classification number: 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
Abstract: 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 “ej(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).
Abstract translation: 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“ej（＆pgr / / 2）”对调制后的响应信号进行乘法，以便在循环移位上旋转每个响应信号的星座图 轴; 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。
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公开(公告)号：US09184891B2
公开(公告)日：2015-11-10
申请号：US14673069
申请日：2015-03-30
Inventor： Takashi Iwai , Akihiko Nishio , Daichi Imamura , Seigo Nakao , Yoshihiko Ogawa
CPC classification number: H04L5/0048 , H04B1/713 , H04L5/0041 , H04L5/0057 , H04L5/006 , H04L5/0064 , H04L25/0224 , H04W24/00 , H04W72/042 , H04W72/0453 , H04W72/0486 , H04W72/085 , H04W88/08
Abstract: A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus (100), an allocation setting unit (106), which sets the reception band of an SRS at an SRS extraction unit (103) and sets the units of frequency allocation (RBG) at a CQI estimation unit (104) and allocation unit (105), matches the frequency position at the end of the SRS reception band to the frequency position at the end of any of the units of frequency allocation and sets the reception bandwidth of the reference signal to a natural number multiple of the bandwidth of the unit of frequency allocation. In the terminal apparatus (200), a band information setting unit (204), which sets the transmission band and units of frequency allocation (RBG), matches the frequency position at the end of the transmission band to the frequency position at the end of any of the units of frequency allocation and sets the transmission bandwidth of the SRS to a natural number multiple of the bandwidth of the unit of frequency allocation.
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公开(公告)号：US09173220B2
公开(公告)日：2015-10-27
申请号：US14581649
申请日：2014-12-23
Inventor： Shinsuke Takaoka , Seigo Nakao , Daichi Imamura , Masayuki Hoshino
CPC classification number: H04W72/0453 , H04B7/0456 , H04J13/0059 , H04L1/0003 , H04L1/0009 , H04L5/0007 , H04L5/0021 , H04L5/0023 , H04L5/0041 , H04L5/0046 , H04L5/006 , H04L27/0008 , H04L27/2636
Abstract: A wireless communication terminal apparatus wherein even when a SC-FDMA signal is divided into a plurality of clusters and the plurality of clusters are then mapped to respective discontinuous frequency bands (when C-SC-FDMA is used), the improvement effect of system throughput can be maintained, while the user throughput can be improved. In the apparatus, a DFT unit (210) subjects a symbol sequence of time domain to a DFT process, thereby generating signals of frequency domain. A setting unit (211) divides the signals input from the DFT unit (210) into a plurality of clusters according to a cluster pattern that is in accordance with an MCS set, an encoding size, or the number of Ranks occurring during MIMO transmissions, which is indicated in those signal input, and then maps the plurality of clusters to the respective ones of a plurality of discontinuous frequency resources, thereby setting a constellation of the plurality of clusters in the frequency domain.
Abstract translation: 一种无线通信终端装置，其中即使当SC-FDMA信号被划分为多个群集并且多个群集然后被映射到各个不连续的频带（当使用C-SC-FDMA时），系统吞吐量的改善效果 可以维护，同时可以提高用户吞吐量。 在该装置中，DFT单元（210）将时域的符号序列进行DFT处理，从而产生频域的信号。 设置单元（211）根据在MIMO传输期间发生的MCS集合，编码大小或Rank数量的集群模式将从DFT单元（210）输入的信号划分为多个集群， 在这些信号输入中指示，然后将多个簇映射到多个不连续频率资源中的相应的一个，从而在频域中设置多个聚类的星座。
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