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公开(公告)号：US20150155923A1
公开(公告)日：2015-06-04
申请号：US14615359
申请日：2015-02-05
Inventor： Hui Tong , Masayuki Hoshino , Ming Xu , Seigo Nakao , Daichi Imamura
CPC classification number: H04B7/0478 , H04B7/024 , H04B7/0456 , H04B7/0469 , H04B7/0634 , H04B7/0639 , H04B7/0641 , H04B7/0663 , H04B2001/3855 , H04B2001/3861 , H04L25/03904 , H04L25/03917 , H04W88/02 , H04W88/08
Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.
Abstract translation: 本公开提供了一种在具有多个天线阵列的无线通信系统中生成码本的方法，以及使用该通信码本的无线通信系统，基站和终端。 该方法包括以下步骤：提供包含多个预编码矩阵的基本码本; 并将相位偏移分配给基本码本中的某些预编码矩阵以形成具有相位偏移的码本。 降低了从客户端到基站侧的反馈开销，通过在无线通信系统，基站和终端中应用生成码本的方法和使用生成的码本来保持多天线阵列的反馈精度良好。
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公开(公告)号：US08995557B2
公开(公告)日：2015-03-31
申请号：US14316634
申请日：2014-06-26
Inventor： Hui Tong , Masayuki Hoshino , Ming Xu , Seigo Nakao , Daichi Imamura
CPC classification number: H04B7/0478 , H04B7/024 , H04B7/0456 , H04B7/0469 , H04B7/0634 , H04B7/0639 , H04B7/0641 , H04B7/0663 , H04B2001/3855 , H04B2001/3861 , H04L25/03904 , H04L25/03917 , H04W88/02 , H04W88/08
Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.
Abstract translation: 本公开提供了一种在具有多个天线阵列的无线通信系统中生成码本的方法，以及使用该通信码本的无线通信系统，基站和终端。 该方法包括以下步骤：提供包含多个预编码矩阵的基本码本; 并将相位偏移分配给基本码本中的某些预编码矩阵以形成具有相位偏移的码本。 降低了从客户端到基站侧的反馈开销，通过在无线通信系统，基站和终端中应用生成码本的方法和使用生成的码本来保持多天线阵列的反馈精度良好。
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73.发明授权Radio communication for reducing the signaling amount in selecting a plurality of beams in pre-coding for enhancing throughput 有权无线电通信，用于在预编码中减少选择多个波束的信令量，以增强吞吐量公开(公告)号：US08964873B2
公开(公告)日：2015-02-24
申请号：US14103134
申请日：2013-12-11
Inventor： Masayuki Hoshino , Katsuhiko Hiramatsu , Yasuaki Yuda , Ryohei Kimura
CPC classification number: H04B7/0617 , H04B7/0408 , H04B7/0417
Abstract: The signaling amount in selecting a plurality of beams is reduced in pre-coding to enhance throughput. When notification of a beam number is provided in a feedback signal from an user equipment to a radio base station, a superior beam number, having a high quality rank with small time variation, is bound up and fixed for a predetermined time period and notification of only a inferior beam number is provided within the predetermined time period. For example, to select three beams among six beams, first, notification of the superior two beam numbers (beam numbers ‘b’ and ‘c’) is provided. These beam numbers are fixed for a predetermined time period and then notification of only the inferior one beam number (beam number ‘e’) is provided within the predetermined time period. Thus, the signaling amount for providing beam number notification is reduced.
Abstract translation: 在预编码中减少了选择多个波束的信令量，以增加吞吐量。 当在用户设备向无线基站的反馈信号中提供波束号的通知时，具有小时间变化的具有高质量等级的优良波束号被约束并固定预定时间段，并通知 在预定时间段内仅提供较差的光束号。 例如，为了在六个光束中选择三个光束，首先提供上两个光束号（光束号'b'和'c'）的通知。 这些波束编号固定预定时间段，然后在预定时间段内仅提供较差的一个波束号（波束号“e”）。 因此，用于提供波束号通知的信令量减少。
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74.发明授权公开(公告)号：US08953704B2
公开(公告)日：2015-02-10
申请号：US14252000
申请日：2014-04-14
Inventor： Qian Yu , Lei Huang , Masayuki Hoshino , Daichi Imamura
CPC classification number: H04B7/0456 , H04B7/002 , H04B7/0413 , H04B7/0469 , H04B7/0617 , H04B7/0634 , H04B7/0639 , H04B7/0691 , H04B7/10 , H04L25/0224 , H04L25/0248 , H04L25/03898 , H04L25/03961 , H04L2025/03808
Abstract: In a MIMO system using a cross-polarized antenna structure, even if no ideal XPD can be obtained, the interference between different polarized waves can be reduced to allow an effective precoding to be executed. When a MIMO communication is performed between a transmitter and a receiver each using a cross-polarized antenna structure, a channel estimating and precoding selection section of the receiver performs a channel estimation of MIMO channels from the transmitter to the receiver, decides a precoding matrix of a projection matrix for mutually orthogonalizing or substantially orthogonalizing the channel response matrixes for respective different polarized waves, and feeds the determined precoding matrix back to the transmitter. In the transmitter, a precoding processing section applies the precoding matrix to the spatial stream corresponding to one of the polarized waves to perform a precoding, thereby allowing the transmitter to transmit the polarized waves with the orthogonality therebetween maintained.
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公开(公告)号：US20150009922A1
公开(公告)日：2015-01-08
申请号：US14369428
申请日：2013-02-01
Inventor： Masayuki Hoshino , Takashi Tamura
IPC: H04L5/00
CPC classification number: H04L5/0053 , H04L5/001 , H04L5/0035 , H04L5/0048 , H04L5/0057 , H04L5/0087 , H04L5/0092 , H04W24/10
Abstract: Provided is a terminal whereby the accuracy of CSI measurement results in the terminal can be assured, and declines in throughput prevented. In this terminal, a reception processor (203) receives reference signals respectively transmitted from a plurality of transmission points. A CSI generator (206) identifies a second subframe on the basis of a first subframe respectively established for each of the plurality of transmission points, and using the reference signals from the plurality of transmission points, generates channel information in a subframe other than the second subframe, without generating channel information in the second subframe. A transmission signal former (208) transmits the generated channel information.
Abstract translation: 提供了一种可以确保终端中的CSI测量结果的精度的终端，并且防止吞吐量的下降。 在该终端中，接收处理器（203）接收分别从多个发送点发送的参考信号。 CSI生成器（206）基于对于多个发送点中的每一个分别建立的第一子帧和使用来自多个发送点的参考信号来识别第二子帧，在除了第二子帧之外的子帧中生成信道信息 子帧，而不在第二子帧中生成信道信息。 发送信号形成器（208）发送所生成的信道信息。
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Patent Agency Ranking
76.发明申请TRANSMISSION DEVICE, RECEPTION DEVICE, AND METHOD FOR CONTROLLING TRANSMISSION POWER 有权传输设备，接收设备和控制传输功率的方法公开(公告)号：US20140376487A1
公开(公告)日：2014-12-25
申请号：US14377147
申请日：2013-02-22
Inventor： Takashi Iwai , Kazuki Takeda , Akihiko Nishio , Daichi Imamura , Masayuki Hoshino
CPC classification number: H04W52/242 , H04L5/0091 , H04W52/146 , H04W52/362 , H04W52/40 , H04W52/58 , H04W72/0406
Abstract: This transmission device can notify of a control value pertaining to transmission power without causing an increase in the amount of signaling. A control unit (103) controls transmission power based on a bit sequence notified from a reception device and the association between the bit sequence and a control value pertaining to transmission power; in the association, each bit sequence is respectively associated with a first control value candidate group and a second control value candidate group; when the device is not the subject of cooperative reception, the control unit (103) calculates a transmission power using a control value candidate associated with the notified bit sequence among the first control value candidate group, and when the device is the subject of cooperative reception, the control unit (103) calculates a transmission power using a control value candidate associated with the notified bit sequence among the second control value candidate group.
Abstract translation: 该发送装置能够通知与发送功率有关的控制值而不引起信令量的增加。 控制单元（103）基于从接收装置通知的比特序列和比特序列与发送功率的控制值之间的关联来控制发送功率; 在关联中，每个比特序列分别与第一控制值候选组和第二控制值候选组相关联; 当设备不是协同接收的对象时，控制单元（103）使用与第一控制值候选组之间的通知的位序列相关联的控制值候选来计算发送功率，并且当该设备是协作接收的对象时 ，控制单元（103）使用与第二控制值候选组中的所通知的位序列相关联的控制值候选来计算发送功率。
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公开(公告)号：US08917672B2
公开(公告)日：2014-12-23
申请号：US14243630
申请日：2014-04-02
Inventor： Seigo Nakao , Masayuki Hoshino
IPC: H04W4/00 , H04L5/00 , H04B7/04 , H04B7/06 , H04L1/18 , H04B7/02 , H04L1/16 , H04W72/04 , H04J11/00 , H04W28/04
CPC classification number: H04L5/0055 , H04B7/024 , H04B7/0413 , H04B7/0434 , H04B7/0623 , H04J11/0033 , H04L1/1628 , H04L1/18 , H04L1/1829 , H04L1/1861 , H04W28/04 , H04W72/0406
Abstract: Provided are a MIMO transmission device and a MIMO transmission method which can improve reception quality of a response signal. A terminal (100) as the MIMO transmission device maps a first and a second element of the ACK/NACK signal vector formed from ACK/NACK signals onto a first and a second stream, respectively, and transmits the elements contained in a 2SC-FDMA symbol in a single slot. In the terminal (100), a response signal vector formation unit (140) forms [a·Sack, 0] as the ACK/NACK signal vector in a first SC-FDMA symbol and [0, a·Sack] as an ACK/NACK signal vector in a second SC-FDMA symbol. A precoding unit (165) uses a unitary matrix to precode the ACK/NACK signal vector formed in the response signal vector formation unit (140).
Abstract translation: 提供了可以提高响应信号的接收质量的MIMO传输装置和MIMO传输方法。 作为MIMO传输设备的终端（100）将从ACK / NACK信号形成的ACK / NACK信号向量的第一和第二元素分别映射到第一和第二流上，并将包含在2SC-FDMA 符号在单个插槽。 在终端（100）中，响应信号矢量形成单元（140）在第一SC-FDMA符号中形成作为ACK / NACK信号矢量的[a·Sack，0]，作为ACK / NACK信号向量在第二SC-FDMA符号中。 预编码单元（165）使用酉矩阵来对响应信号向量形成单元（140）中形成的ACK / NACK信号矢量进行预编码。
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公开(公告)号：US20250106862A1
公开(公告)日：2025-03-27
申请号：US18975873
申请日：2024-12-10
Inventor： Ayako Horiuchi , Lilei Wang , Alexander Golitschek Edler von Elbwart , Masayuki Hoshino , Yasuaki Yuda
IPC: H04W72/23 , H04L1/00 , H04L1/1812 , H04L5/00 , H04W72/0446 , H04W72/20
Abstract: A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.
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公开(公告)号：US12034666B2
公开(公告)日：2024-07-09
申请号：US18447975
申请日：2023-08-10
Inventor： Tetsuya Yamamoto , Masayuki Hoshino , Seigo Nakao
IPC: H04L5/00 , H04J13/18 , H04L27/26 , H04W72/04 , H04W72/0446
CPC classification number: H04L5/0048 , H04J13/18 , H04L5/0051 , H04L27/2607 , H04W72/0446 , H04L5/0016
Abstract: A base station selects, from among a plurality of code sequences orthogonal to one another, one code sequence by which an uplink signal including a demodulation reference signal repeated in a plurality of subframes is multiplied and transmits, to a terminal for which transmission of the repeated uplink signal is configured, information indicating the selected code sequence by using a field for indicating a cyclic shift and an orthogonal sequence used for the demodulation reference signal. A terminal receives information indicating one of a plurality of code sequences orthogonal to one another using a field for indicating a cyclic shift and an orthogonal sequence used for a demodulation reference signal and multiplies an uplink signal including the demodulation reference signal repeated in a plurality of subframes by the code sequence indicated by the information.
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公开(公告)号：US11917673B1
公开(公告)日：2024-02-27
申请号：US18319325
申请日：2023-05-17
Inventor： Masayuki Hoshino , Ayako Horiuchi , Seigo Nakao
IPC: H04W72/54 , H04W72/542 , H04W48/16 , H04L5/00 , H04W24/10 , H04W72/0446 , H04W88/08
CPC classification number: H04W72/542 , H04L5/0048 , H04W24/10 , H04W48/16 , H04W72/0446 , H04W88/08
Abstract: A reception processor receives the cell detection reference signals, each of the cell detection reference signals being transmitted from corresponding one of a plurality of cells. An RRM report generator generates measurement information indicating a measurement result of reception quality measured using the cell detection reference signal. A transmission processor transmits the measurement information. The cell detection reference signals are mapped to any one of a plurality of candidate resources, which is a part of a plurality of resources set for other reference signals in a subframe to which the cell detection reference signals are mapped.
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