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71.发明申请公开(公告)号：US20150381258A1
公开(公告)日：2015-12-31
申请号：US14848167
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.
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公开(公告)号：US09143301B2
公开(公告)日：2015-09-22
申请号：US14091164
申请日：2013-11-26
Inventor： Sadaki Futagi , Daichi Imamura , Seigo Nakao , Masayuki Hoshino , Akihiko Nishio
CPC classification number: H04L1/001 , H04L1/0004 , H04L1/0015 , H04L1/0017 , H04L1/1812 , H04L5/0053 , H04L5/0055 , H04W72/0413 , H04W72/06 , H04W72/082
Abstract: Disclosed are an encoding ratio setting method and a radio communication device which can avoid encoding of control information at an encoding ratio lower than necessary and suppress lowering of the transmission efficiency of the control information. In the device, an encoding ratio setting unit (122) sets the encoding ratio R′control of the control information which is time-multiplexed with user data, according to the encoding ratio Rdata of the user data, ΔPUSCHoffset as the PUSCH offset of each control information, and ΔRANKoffset as the rank offset based on the rank value of the data channel using Expression (1). R control ′ = O Q ′ = max ( O ⌈ O 10 - Δ offset PUSCH + Δ offset RANK 10 · R data ⌉ , O 4 · M sc ) ( 1 ) Where ┌x┐ is an integer not greater than x, and max(x,y) is the greater one among X and Y.
Abstract translation: 公开了一种编码比率设定方法和无线通信装置，其可以避免编码率低于必要的编码，并抑制控制信息的传输效率的降低。 在该装置中，编码比设定部（122）根据用户数据的编码比Rdata＆Dgr; PUSCHoffset将与时间复用的控制信息的编码率R'control设置为用户数据作为PUSCH偏移量 以及＆Dgr; RANKoffset作为基于使用表达式（1）的数据信道的秩值的秩偏移。 R control'= OQ'= max（O⌈O 10 - ＆Dgr; offset PUSCH +＆Dgr; offset RANK 10·R data⌉，O 4·M sc）（1）其中┌x┐是不大于x的整数， 并且max（x，y）是X和Y中较大的一个。
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公开(公告)号：US09112668B2
公开(公告)日：2015-08-18
申请号：US13926738
申请日：2013-06-25
Inventor： Seigo Nakao , Daichi Imamura , Katsuhiko Hiramatsu
CPC classification number: H04J11/005 , H04B1/713 , H04J13/0059 , H04J13/0074 , H04L5/0055 , H04L5/0057 , H04L5/0073 , H04W72/0413 , H04W72/042 , H04W88/08
Abstract: A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference.
Abstract translation: 一种能够使小区间干扰和小区内干扰同时化的无线通信装置。 在该装置中，扩展部分主要在由控制单元设置的ZAC序列中扩展响应信号。 扩展部分以由控制单元设置的块式扩展码序列二次扩展主要扩展的响应信号。 控制单元根据设定的跳频图案控制在扩展部分中用于一次扩频的ZAC序列的循环移位量和用于扩展部分中的二次扩频的块式扩频码序列。 由控制单元设置的跳频图案由两层组成。 为了随机化小区间干扰，在第一层次中定义了每个小区不同的基于LB的跳频模式。 在第二层次中定义了针对每个移动站不同的跳频模式以随机化小区内干扰。
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公开(公告)号：US09112643B2
公开(公告)日：2015-08-18
申请号：US14455236
申请日：2014-08-08
Inventor： Zhi Zhang , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
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。
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公开(公告)号：US20150172944A1
公开(公告)日：2015-06-18
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.
Abstract translation: 提供了能够高精度地测量与切换目的地的通信质量的无线电通信终端。 无线电通信终端能够与基站或中继节点通信，并且包括：接收机，其接收包括与相邻小区的测量质量的测量有关的信息的控制信息; 从与所述测量有关的信息中提取作为仅执行来自连接到所述基站的所述中继节点的信号的信号的子帧的，应当执行所述测量的子帧的信息的提取器; 测量部，其基于所提取的关于应当进行测量的子帧的信息，在子帧的基础上进行测量; 以及将测量结果发送到基站或中继节点的发射机。
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Patent Agency Ranking
76.发明申请BASE STATION, TERMINAL, BAND ALLOCATION METHOD, AND DOWNLINK DATA COMMUNICATION METHOD 有权基站，终端，带分配方法和下行链路数据通信方法公开(公告)号：US20150078313A1
公开(公告)日：2015-03-19
申请号：US14550790
申请日：2014-11-21
Inventor： Seigo Nakao , Katsuhiko Hiramatsu , Akihiko Nishio , Daichi Imamura
CPC classification number: H04L5/001 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L27/2647 , H04W56/0015 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/0453 , H04W72/048
Abstract: Provided are a base station, a terminal, a band allocation method, and a downlink data communication method with which bands can be efficiently allocated. In a base station in which a plurality of unit bands can be allocated to a single communication, when a data receiver acquires terminal capability information transmitted by a terminal in the initial access unit band and the bandwidth available for communication indicated by the terminal capability information can accommodate a plurality of unit bands, a unit band group which includes the initial access unit band as well as the unit bands adjacent thereto is allocated to the terminal, and a communication band movement indication, which indicates the movement of the center frequency in the communication band of the terminal toward the center frequency in the unit band group, is transmitted to the terminal using the initial access unit band.
Abstract translation: 提供可以有效地分配频带的基站，终端，频带分配方法和下行链路数据通信方法。 在可以将多个单位频带分配给单个通信的基站中，当数据接收机获取由终端能力信息指示的初始接入单元频带中的终端发送的终端能力信息和可用于通信的带宽时， 容纳多个单位频带，将包括初始接入单元频带的单位频带组以及与其相邻的单位频带分配给终端，以及通信频带移动指示，其指示通信中的中心频率的移动 使用初始接入单元频带向终端发送终端朝向单位频带组中的中心频率的频带。
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77.发明授权Wireless communication base station equipment, wireless communication terminal device and search space setting method 有权无线通信基站设备，无线通信终端设备和搜索空间设置方法公开(公告)号：US08964687B2
公开(公告)日：2015-02-24
申请号：US14306011
申请日：2014-06-16
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.
Abstract translation: 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。
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公开(公告)号：US20150023292A1
公开(公告)日：2015-01-22
申请号：US14505429
申请日：2014-10-02
Inventor： Akihiko Nishio , Seigo Nakao
IPC: H04W72/04
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.
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公开(公告)号：US12294464B2
公开(公告)日：2025-05-06
申请号：US17841490
申请日：2022-06-15
Inventor： Tetsuya Yamamoto , Seigo Nakao , Hidetoshi Suzuki , Masayuki Hoshino
IPC: H04L1/1829 , H04L1/1607 , H04W72/21 , H04W72/23
Abstract: If repetition transmission is applied to a response signal for a downlink data signal and an uplink signal, the uplink signal is repeatedly transmitted using a certain number of consecutive subframes starting with a first subframe, at which the repetition transmission of the uplink signal starts, and the response signal is repeatedly transmitted using at least the certain number of consecutive subframes starting with a second subframe, at which the repetition transmission of the response signal starts. The first subframe is set to be the same as the second subframe.
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公开(公告)号：US20250015908A1
公开(公告)日：2025-01-09
申请号：US18895159
申请日：2024-09-24
Inventor： Ayako Horiuchi , Masayuki Hoshino , Seigo Nakao
IPC: H04B17/318 , H04L5/00 , H04W48/12
Abstract: Received Signal Strength Indicator (RSSI) is measured accurately even in a case where a discovery signal is transmitted. A receiver receives a plurality of subframes, at least one of which includes a discovery signal, and a measurer measures Reference Signal Reception Power (RSRP) using a first resource in which the discovery signal is mapped, measures RSSI using a second resource different from the first resource for which the discovery signal is mapped, and calculates Reference Signal Reception Quality (RSRQ) using RSRP and RSSI.
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