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公开(公告)号：US09673954B2
公开(公告)日：2017-06-06
申请号：US15144190
申请日：2016-05-02
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura
IPC: H04J11/00 , H04L5/00 , H04J13/00 , H04L1/16 , H04L25/03 , H04L27/26 , H04B1/7103 , H04L1/12 , H04W88/08
CPC classification number: H04L27/2626 , H04B1/7103 , H04B2201/709709 , H04J13/0048 , H04J13/0059 , H04L1/16 , H04L1/1607 , H04L5/0048 , H04L5/0055 , H04L25/03866 , H04L27/2602 , H04L27/2655 , H04L27/3483 , H04L2001/125 , H04W88/08
Abstract: A base station is provided for receiving an acknowledgement or negative acknowledgement (ACK/NACK) signal, including a transmitting unit configured to transmit a control signal using one or a plurality of CCE(s). The base station also includes a receiving unit configured to receive an ACK/NACK signal, the ACK/NACK signal being multiplied by an orthogonal sequence, by a sequence defined by a cyclic shift, and by either a first value or a second value, wherein the first value rotates a constellation of the ACK/NACK signal by 0 degrees and the second value rotates the constellation of the ACK/NACK signal by N degrees, which is different from 0 degrees.
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公开(公告)号：US20210194537A1
公开(公告)日：2021-06-24
申请号：US17197196
申请日：2021-03-10
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino
IPC: H04B1/7103 , H04J13/00 , H04J13/18 , H04L5/00
Abstract: A radio communication apparatus includes spreading circuitry that spreads a response signal using a first set of orthogonal sequences to produce a spread response signal. Each orthogonal sequence in the first set has a first length. The spreading circuitry also spreads a reference signal using a second set of orthogonal sequences to produce a spread reference signal. Each orthogonal sequence in the second set has a second length that is shorter than the first length. A radio transmitter transmits the spread response signal and the spread reference signal.
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公开(公告)号：US10200083B2
公开(公告)日：2019-02-05
申请号：US15286817
申请日：2016-10-06
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino
IPC: H04B1/7103 , H04J13/00 , H04J13/18 , H04L5/00
Abstract: A wireless communication apparatus and method minimizes degradation in a separation characteristic of a code-multiplexed response signal using two-dimensional processing. One of plural cyclic shift values defines a reference signal sequence that is spread with an orthogonal sequence associated with one of the plural cyclic shift values. This two-dimensional processing compensates for interference affecting the reference signal.
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公开(公告)号：US09660750B2
公开(公告)日：2017-05-23
申请号：US14595650
申请日：2015-01-13
Applicant: Optis Wireless Technology, LLC
Inventor： Sadaki Futagi , Seigo Nakao , Daichi Imamura
IPC: H04J13/10 , H04L1/16 , H04L5/00 , H04W72/04 , H04B1/7103 , H04J13/18 , H04J13/00 , H04L25/03 , H04L1/12 , H04W88/02 , H04W88/08
CPC classification number: H04L1/0026 , H04B1/7103 , H04B7/0626 , H04J13/0062 , H04J13/0074 , H04J13/102 , H04J13/18 , H04L1/1671 , H04L5/0016 , H04L5/0055 , H04L5/0057 , H04L25/03828 , H04L2001/125 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/1226 , H04W88/02 , H04W88/08
Abstract: Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.
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公开(公告)号：US09648642B2
公开(公告)日：2017-05-09
申请号：US14844180
申请日：2015-09-03
Applicant: Optis Wireless Technology, LLC
Inventor： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomofumi Takata
CPC classification number: H04W74/0833 , H04J13/0059 , H04J13/0066 , H04J13/16 , H04J13/22 , H04L5/0091 , H04W72/042
Abstract: Integrated circuitry for use in a mobile radio station includes a receiver that receives control information and a data processor coupled to the receiver. The data processor provides a number of different sequences that are derived from a base sequence. The different derived sequences are respectively associated with different amounts of data or reception qualities, have different cyclic shifts, and are arranged in an increasing order of the cyclic shifts. The data processor randomly selects a sequence from a subset of the derived sequences. The subset of derived sequences depends on the control information.
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Patent Agency Ranking
公开(公告)号：US09484982B2
公开(公告)日：2016-11-01
申请号：US14616844
申请日：2015-02-09
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino
IPC: H04W4/00 , H04B1/7103 , H04J13/00 , H04J13/18 , H04L5/00
CPC classification number: H04B1/7103 , H04J13/0003 , H04J13/0048 , H04J13/0062 , H04J13/0074 , H04J13/18 , H04L5/0016 , H04L5/005 , H04L5/0053 , H04L5/0055
Abstract: A wireless communication apparatus and method minimizes degradation in a separation characteristic of a code-multiplexed response signal using two-dimensional processing. One of plural cyclic shift values defines a reference signal sequence that is spread with an orthogonal sequence associated with one of the plural cyclic shift values. This two-dimensional processing compensates for interference affecting the reference signal.
Abstract translation: 无线通信装置和方法使用二维处理来最小化码复用的响应信号的分离特性的劣化。 多个循环移位值之一定义了以与多个循环移位值之一相关联的正交序列扩展的参考信号序列。 该二维处理补偿影响参考信号的干扰。
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公开(公告)号：US09137830B2
公开(公告)日：2015-09-15
申请号：US14501324
申请日：2014-09-30
Applicant: Optis Wireless Technology, LLC
Inventor： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomofumi Takata
CPC classification number: H04W74/0833 , H04J13/0059 , H04J13/0066 , H04J13/16 , H04J13/22 , H04L5/0091 , H04W72/042
Abstract: Integrated circuitry for use in a mobile radio station includes a receiver that receives control information and a data processor coupled to the receiver. The data processor provides a number of different sequences that are derived from a base sequence. The different derived sequences are respectively associated with different amounts of data or reception qualities, have different cyclic shifts, and are arranged in an increasing order of the cyclic shifts. The data processor randomly selects a sequence from a subset of the derived sequences. The subset of derived sequences depends on the control information.
Abstract translation: 用于移动无线电台的集成电路包括接收控制信息的接收机和耦合到接收机的数据处理器。 数据处理器提供从基序列导出的多个不同序列。 不同的导出序列分别与不同数量的数据或接收质量相关联，具有不同的循环移位，并以循环移位的递增顺序排列。 数据处理器从派生序列的子集中随机选择一个序列。 派生序列的子集取决于控制信息。
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公开(公告)号：US20150155910A1
公开(公告)日：2015-06-04
申请号：US14616844
申请日：2015-02-09
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino
IPC: H04B1/7103 , H04L5/00 , H04J13/00 , H04J13/18
CPC classification number: H04B1/7103 , H04J13/0003 , H04J13/0048 , H04J13/0062 , H04J13/0074 , H04J13/18 , H04L5/0016 , H04L5/005 , H04L5/0053 , H04L5/0055
Abstract: A wireless communication apparatus and method minimizes degradation in a separation characteristic of a code-multiplexed response signal using two-dimensional processing. One of plural cyclic shift values defines a reference signal sequence that is spread with an orthogonal sequence associated with one of the plural cyclic shift values. This two-dimensional processing compensates for interference affecting the reference signal.
Abstract translation: 无线通信装置和方法使用二维处理来最小化码复用的响应信号的分离特性的劣化。 多个循环移位值之一定义了以与多个循环移位值之一相关联的正交序列扩展的参考信号序列。 该二维处理补偿影响参考信号的干扰。
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公开(公告)号：US11206100B2
公开(公告)日：2021-12-21
申请号：US16672925
申请日：2019-11-04
Applicant: Optis Wireless Technology, LLC
Inventor： Sadaki Futagi , Seigo Nakao , Daichi Imamura
IPC: H04L1/00 , H04J13/00 , H04L1/16 , H04L5/00 , H04W72/04 , H04B1/7103 , H04J13/10 , H04J13/18 , H04B7/06 , H04W72/12 , H04L25/03 , H04L1/12 , H04W88/02 , H04W88/08
Abstract: Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. A diffusion unit (214) diffuses the ACK/NACK signal inputted from a judgment unit (208) by using a ZC sequence. A diffusion unit (219) diffuses the CQI signal by using a cyclic shift ZC sequence. By using a Walsh sequence, a diffusion unit (216) further diffuses the ACK/NACK signal which has been diffused by using the ZC sequence. A control unit (209) controls the diffusion unit (214), the diffusion unit (216), and the diffusion unit (219) so that the minimum value of the difference between the CQI signals from a plurality of mobile stations and a cyclic shift amount of the ACK/NACK signal is not smaller than the minimum value of the difference between the cyclic shift amounts of the ACK/NACK signals from the plurality of mobile stations.
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公开(公告)号：US20200170049A1
公开(公告)日：2020-05-28
申请号：US16775335
申请日：2020-01-29
Applicant: Optis Wireless Technology, LLC
Inventor： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomofumi Takata
Abstract: A user terminal apparatus includes a receiver to receive a control information value belonging to a set of multiple control information values. Each control information value in the set of multiple control information values is associated with a subset of random access sequences from multiple subsets of random access sequences. Different ones of the multiple subsets of random access sequences are associated with different amounts of data. A data processor selects a random access sequence from one of the subset of random access sequences based on the control information value. A transmitter transmits the selected random access sequence.
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