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公开(公告)号：US20150124751A1
公开(公告)日：2015-05-07
申请号：US14581649
申请日：2014-12-23
Inventor： Shinsuke Takaoka , Seigo Nakao , Daichi Imamura , Masayuki Hoshino
IPC: H04W72/04
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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112.发明申请TERMINAL DEVICE, WIRELESS TRANSMISSION METHOD, BASE STATION DEVICE, AND CHANNEL ESTIMATION METHOD 有权终端设备，无线传输方法，基站设备和信道估计方法公开(公告)号：US20150009847A1
公开(公告)日：2015-01-08
申请号：US14378071
申请日：2013-02-22
Inventor： Takashi Iwai , Daichi Imamura , Akihiko Nishio , Yoshihiko Ogawa , Kazuki Takeda
IPC: H04L25/02
CPC classification number: H04L25/024 , H04B7/024 , H04B7/0452 , H04J11/005 , H04J13/0062 , H04J13/22 , H04L5/001 , H04L5/0048 , H04L25/0204 , H04L25/022 , H04L25/0228 , H04L25/03159 , H04L2025/03426 , H04W84/042
Abstract: The present invention adopts a configuration such that when cooperative reception by a plurality of base stations is not applied, a reference signal sequence determined from a selection baseline value corresponding to the number of a sequence group allocated to a cell belonging to the device in question is selected from among a plurality of selection baseline values as a reference signal sequence for non-cooperative reception, whereas when cooperative reception by a plurality of base stations is applied, a reference signal sequence determined from one or more intermediate selection baseline values set between two adjacent selection baseline values corresponding to the number of a sequence group allocated individually to a terminal device is selected among the plurality of selection baseline values as a reference signal sequence for cooperative reception differing from the reference signal sequence for non-cooperative reception.
Abstract translation: 本发明采用这样的结构，即当不应用由多个基站进行协同接收时，从与分配给属于所述设备的小区的序列组的数量相对应的选择基准值确定的参考信号序列是 从多个选择基准值中选择作为用于非协作接收的参考信号序列，而当应用由多个基站进行协作接收时，从由两个相邻的基站之间设置的一个或多个中间选择基线值确定的参考信号序列 在多个选择基准值之中选择与分别分配给终端装置的序列组的编号相对应的选择基准值，作为与用于非合作接收的参考信号序列不同的协同接收的参考信号序列。
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公开(公告)号：US10523384B2
公开(公告)日：2019-12-31
申请号：US14556938
申请日：2014-12-01
Inventor： Masayuki Hoshino , Seigo Nakao , Daichi Imamura
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.
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公开(公告)号：US09602267B2
公开(公告)日：2017-03-21
申请号：US14795334
申请日：2015-07-09
Inventor： Shinsuke Takaoka , Daichi Imamura , Kenichi Miyoshi
IPC: H04L5/00 , H04L25/03 , H04W72/08 , H04W24/02 , H04L1/00 , H04W48/00 , H04J11/00 , H04B7/02 , H04W92/20 , H04W28/06
CPC classification number: H04L5/0073 , H04B7/024 , H04J11/0053 , H04J11/0079 , H04L1/00 , H04L5/0023 , H04L5/0035 , H04L5/0082 , H04L25/03343 , H04L25/03904 , H04L25/03955 , H04L2025/03777 , H04W24/02 , H04W28/06 , H04W48/00 , H04W72/042 , H04W72/08 , H04W92/20
Abstract: A communication apparatus comprises a generator that generates frequency resource position information corresponding to a first information which is based on the communication quality information received from user equipments, the frequency resource position information indicating validity or invalidity of the first information for each frequency resource, anda transmitter that transmits the first information, the frequency resource position information and a cell ID which the frequency resource position is applied, to another communication apparatus via a backhaul.
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公开(公告)号：US09467882B2
公开(公告)日：2016-10-11
申请号：US14631694
申请日：2015-02-25
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
CPC classification number: H04W72/005 , H04B17/318 , H04B17/345 , H04L5/0073 , H04W24/08 , H04W24/10 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/085
Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.
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Patent Agency Ranking
公开(公告)号：US20160270122A1
公开(公告)日：2016-09-15
申请号：US15161973
申请日：2016-05-23
Inventor： Daichi Imamura , Takashi Iwai , Kazunori Inogai , Sadaki Futagi , Atsushi Matsumoto
CPC classification number: H04W74/0833 , H04B1/707 , H04B1/7083 , H04B2201/70702 , H04B2201/70713 , H04J13/0062 , H04J13/102 , H04J13/22 , H04L5/0048 , H04L23/02 , H04L27/2613 , H04W72/04 , H04W72/0446 , H04W72/0453 , H04W74/0875
Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.
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公开(公告)号：US20160233988A1
公开(公告)日：2016-08-11
申请号：US15098249
申请日：2016-04-13
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).
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），其通过加扰码“1”或“e-j（π/ 2）”将调制后的响应信号相乘，以便在循环的每个响应信号上旋转星座图 换档轴; 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：US20160205674A1
公开(公告)日：2016-07-14
申请号：US15053963
申请日：2016-02-25
Inventor： Zhi Zhang , Ming Xu , Masayuki Hoshino , Daichi Imamura , Akihiko Nishio
CPC classification number: H04W72/044 , H04L5/0016 , H04L5/0051 , H04L25/0226 , H04L27/2613 , H04W72/121
Abstract: Method of scrambling signals, transmission point device, and user equipment using the method are provided. The method includes: 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, wherein the blind detection for the UE is enabled and the signaling overhead is reduced.
Abstract translation: 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。 该方法包括：通过更高层信令向用户设备发送ID表，该ID表是整个ID空间的子集，并且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。 通过组合物理层信令和较高层信令，本发明的方法可以将所使用的组ID和盲检测空间通知给UE，其中，UE的盲检测被启用，并且信令开销降低。
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公开(公告)号：US09370007B2
公开(公告)日：2016-06-14
申请号：US14457783
申请日：2014-08-12
Inventor： Yoshihiko Ogawa , Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino , Katsuhiko Hiramatsu , Kenichi Miyoshi , Yasuaki Yuda , Sadaki Futagi , Takashi Iwai
CPC classification number: H04W72/0453 , H04L1/0042 , H04L1/0061 , H04L5/0023 , H04L5/0039 , H04L5/0048 , H04L25/0226 , H04L25/03159 , H04L27/2602
Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.
Abstract translation: 公开了一种无线通信基站装置和分割数确定方法，无论来自无线通信终端装置的发送信号的频域中的分割数如何，都可以在维持信道估计精度的同时提高频率分集效应。 确定单元确定来自无线通信终端设备的发送信号的频域中的分割数。 这里，确定单元随着发送信号中包括的导频块的数量的增加，增加来自无线通信终端装置的发送信号的频域的分割数。 此外，调度单元根据由确定单元确定的分割数来调度分配的发送信号的频率资源。
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公开(公告)号：US20160113005A1
公开(公告)日：2016-04-21
申请号：US14986030
申请日：2015-12-31
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
IPC: H04W72/04 , H04B17/345 , H04W72/00 , H04B17/318
CPC classification number: H04W72/005 , H04B17/318 , H04B17/345 , H04L5/0073 , H04W24/08 , H04W24/10 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/085
Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.
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