-
公开(公告)号：US08982690B2
公开(公告)日：2015-03-17
申请号：US14169057
申请日：2014-01-30
Inventor： Seigo Nakao , Akihiko Nishio , Ayako Horiuchi , Daichi Imamura
CPC classification number: 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
Abstract: 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.
Abstract translation: 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：US20150036646A1
公开(公告)日：2015-02-05
申请号：US14520170
申请日：2014-10-21
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.
Abstract translation: 可以提供可以提高CQI的接收性能和参考信号的无线通信终端装置和无线发送方法。 相位表存储单元存储将循环移位量与要参考信号相乘的复系数{w1，w2}相关联的相位表。 复系数乘法单元从相位表存储单元读出与由资源分配信息指示的循环移位量相对应的复数系数，并将读出的复数系数与参考信号相乘，以便改变相关关系 参考信号在一个插槽。
-
公开(公告)号：US20150016566A1
公开(公告)日：2015-01-15
申请号：US14504343
申请日：2014-10-01
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），其通过扰码“1”或“e-j（＆pgr / / 2）”将经调制后的响应信号相乘，以便在每个响应信号上旋转星座 循环换档轴; 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。
-
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。
-
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.
-
Patent Agency Ranking
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.
-
公开(公告)号：US11764926B2
公开(公告)日：2023-09-19
申请号：US17565313
申请日：2021-12-29
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.
-
公开(公告)号：US11716158B2
公开(公告)日：2023-08-01
申请号：US17478003
申请日：2021-09-17
Inventor： Ayako Horiuchi , Masayuki Hoshino , Seigo Nakao
IPC: H04B17/318 , H04L5/00 , H04W48/12
CPC classification number: H04B17/318 , H04L5/005 , 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.
-
公开(公告)号：US11153019B2
公开(公告)日：2021-10-19
申请号：US16844645
申请日：2020-04-09
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.
-
公开(公告)号：US20200235831A1
公开(公告)日：2020-07-23
申请号：US16844645
申请日：2020-04-09
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.
-
-
-
-
-
-
-
-
-
Search Results
139
records
(took 0.023 seconds)
