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公开(公告)号：US11051345B2
公开(公告)日：2021-06-29
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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公开(公告)号：US10484952B2
公开(公告)日：2019-11-19
申请号：US15636912
申请日：2017-06-29
Applicant: Optis Wireless Technology, LLC
Inventor： Sadaki Futagi , Daichi Imamura , Atsushi Matsumoto , Takashi Iwai
Abstract: Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit (111) of a transmission unit (110) decides, with reference to a CQI lookup table, an MCS pattern (MCS1) of the SDCH, an MCS pattern (MCS2) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS2 and the MCS1, encoding modulation units (112 and 113) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit (114) time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal.
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公开(公告)号：US09723573B2
公开(公告)日：2017-08-01
申请号：US14743296
申请日：2015-06-18
Applicant: Optis Wireless Technology, LLC
Inventor： Sadaki Futagi , Daichi Imamura , Atsushi Matsumoto , Takashi Iwai
CPC classification number: H04W52/262 , H04L1/0003 , H04L1/0004 , H04L1/0005 , H04L1/0009 , H04L1/001 , H04L1/0011 , H04L1/0016 , H04L1/0026 , H04L5/0007 , H04L5/0046 , H04L5/0058 , H04L5/006 , H04L27/2614 , H04W52/267 , H04W72/042 , H04W72/08 , Y10S370/914
Abstract: Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit (111) of a transmission unit (110) decides, with reference to a CQI lookup table, an MCS pattern (MCS1) of the SDCH, an MCS pattern (MCS2) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS2 and the MCS1, encoding modulation units (112 and 113) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit (114) time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal.
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公开(公告)号：US20170026077A1
公开(公告)日：2017-01-26
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
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：US08953544B2
公开(公告)日：2015-02-10
申请号：US13648976
申请日：2012-10-10
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura , Akihiko Nishio , Masayuki Hoshino
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 capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part (209) controls both a AC sequence to be used in a primary spreading in a spreading part (214) and a Walsh sequence to be used in a secondary spreading in a spreading part (217) so as to allow a very small circular shift interval of the ZC sequence to absorb the interference components remaining in the response signal; the spreading part (214) uses the ZC sequence set by the control part (209) to primary spread the response signal; and the spreading part (217) uses the Walsh sequence set by the control part (209) to secondary spread the response signal to which CP has been added.
Abstract translation: 一种无线通信装置，其能够最小化码复用的响应信号的分离特性的劣化。 在该装置中，控制部（209）控制在扩展部（214）中的一次扩频中使用的AC序列和扩频部（217）中的二次扩展中使用的沃尔什序列，以便 允许ZC序列的非常小的循环移位间隔吸收残留在响应信号中的干扰分量; 扩展部分（214）使用由控制部分（209）设置的ZC序列来初始扩展响应信号; 并且扩展部分（217）使用由控制部分（209）设置的沃尔什序列来二次扩展已经添加了CP的响应信号。
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Patent Agency Ranking
公开(公告)号：US11540326B2
公开(公告)日：2022-12-27
申请号：US16943177
申请日：2020-07-30
Applicant: Optis Wireless Technology, LLC
Inventor： Daichi Imamura , Sadaki Futagi , Atsushi Matsumoto , Takashi Iwai , Tomofumi Takata
Abstract: A radio performs random access by receiving control information and grouping a predetermined number of sequences that are generated from a plurality of base sequences into a plurality of groups by partitioning the predetermined number of sequences. At least one of the groups is associated with a first respective range of data amounts and a first respective range of reception qualities. Sequences generated from a common base sequence are arranged in an increasing order of respective cyclic shifts associated with the sequences. A sequence is randomly selected from a plurality of sequences contained in one group of the plurality of groups. A position at which the predetermined number of sequences are partitioned is determined based on the control information. A number of sequences contained in each of the plurality of groups varies in accordance with the control information.
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公开(公告)号：US10863448B2
公开(公告)日：2020-12-08
申请号：US16597175
申请日：2019-10-09
Applicant: Optis Wireless Technology, LLC
Inventor： Sadaki Futagi , Daichi Imamura , Atsushi Matsumoto , Takashi Iwai
Abstract: Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit (111) of a transmission unit (110) decides, with reference to a CQI lookup table, an MCS pattern (MCS1) of the SDCH, an MCS pattern (MCS2) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS2 and the MCS1, encoding modulation units (112 and 113) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit (114) time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal.
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公开(公告)号：US10455516B2
公开(公告)日：2019-10-22
申请号：US15814169
申请日：2017-11-15
Applicant: Optis Wireless Technology, LLC
Inventor： Siego Nakao , Akihiko Nishio , Daichi Imamura
IPC: H04W52/22 , H04W24/04 , H04W74/00 , H04W8/08 , H04W52/26 , H04L1/16 , H04L1/18 , H04L5/00 , H04W28/04 , H04H20/71 , H04L1/08 , H04W72/04 , H04W84/04
Abstract: A terminal apparatus and retransmission control method reduces overhead of the uplink control channel in cases when ARQ is applied in communication that uses an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band. A first condition is set in which downlink assignment control information is transmitted from a base station by a unit band group which comprises a basic unit band, which is the downlink unit band on which a broadcast channel signal including information relating to the uplink unit band is transmitted, and a second downlink unit band other than the basic unit band. A bundling unit will not transmit a response signal to the base station in certain cases.
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公开(公告)号：US10218552B2
公开(公告)日：2019-02-26
申请号：US15499555
申请日：2017-04-27
Applicant: Optis Wireless Technology, LLC
Inventor： Seigo Nakao , Daichi Imamura
IPC: H04J11/00 , H04L27/26 , H04J13/00 , H04L1/16 , H04L25/03 , H04L5/00 , H04B1/7103 , H04L27/34 , H04L1/12 , 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：US20170223745A1
公开(公告)日：2017-08-03
申请号：US15485337
申请日：2017-04-12
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: Apparatus for use in a mobile radio station includes a memory to store a table of adaptable associations between control information and code sequences. A data processor detects a condition and dynamically adapts one or more of the associations in the table stored in memory between control information and code sequences depending on the detected condition. A transmitter transmits one of the code sequences selected based on the dynamically adapted one or more of the associations.
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