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公开(公告)号：US20170070374A1
公开(公告)日：2017-03-09
申请号：US15122654
申请日：2015-03-17
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Osamu NAKAMURA , Shoichi SUZUKI , Jungo GOTO , Daiichiro NAKASHIMA , Yasuhiro HAMAGUCHI
CPC classification number: H04L27/0012 , H04L1/0003 , H04L1/0005 , H04L1/0009 , H04L1/0011 , H04L1/0016 , H04L1/0023 , H04L1/1829 , H04L1/1854 , H04L5/0028 , H04L5/0091 , H04L27/0008 , H04L27/32 , H04L27/34 , H04W88/02 , H04W88/08
Abstract: MCS that provides high accuracy is selected in semi-persistent scheduling (SPS). A terminal apparatus configured to receive control information includes a control information extraction unit configured to decode the control information using C-RNTI information and extract an MCS index from the control information, and a PDSCH demodulation unit configured to determine MCS using the MCS index and an MCS table and perform a demodulation, wherein the PDSCH demodulation unit selects a particular MCS table from a plurality of MCS tables in accordance with the C-RNTI information used in the decoding.
Abstract translation: 在半永久调度（SPS）中选择提供高精度的MCS。 被配置为接收控制信息的终端装置包括：控制信息提取单元，被配置为使用C-RNTI信息对控制信息进行解码，并从控制信息中提取MCS索引;以及PDSCH解调单元，被配置为使用MCS索引来确定MCS， MCS表并执行解调，其中PDSCH解调单元根据在解码中使用的C-RNTI信息从多个MCS表中选择特定的MCS表。
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公开(公告)号：US20160020878A1
公开(公告)日：2016-01-21
申请号：US14773155
申请日：2013-12-20
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Kazunari YOKOMAKURA , Hiroki TAKAHASHI , Osamu NAKAMURA , Jungo GOTO , Yasuhiro HAMAGUCHI
CPC classification number: H04L5/0048 , H04L5/0023 , H04W72/042 , H04W72/0453 , H04W88/08
Abstract: A terminal device that is capable of increasing the number of spatial multiplexes of a reference signal is provided. A terminal device according to the present invention is a terminal device that generates and transmits a reference signal. The terminal device includes a reference signal generation module that configures a repetition factor (RF) of the reference signal based on a signal which is notified by a base station, and generates the reference signal. Furthermore, the reference signal generation module uses at least one among multiple values that are included in the signal which is notified by the base station, only for configuration of the RF.
Abstract translation: 提供能够增加参考信号的空间复用的数量的终端设备。 根据本发明的终端装置是生成并发送参考信号的终端装置。 终端装置包括参考信号生成模块，其基于由基站通知的信号来配置参考信号的重复因子（RF），并生成参考信号。 此外，参考信号生成模块仅使用由基站通知的信号中包含的多个值中的至少一个，仅用于RF的配置。
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公开(公告)号：US20160013952A1
公开(公告)日：2016-01-14
申请号：US14771878
申请日：2014-02-19
Applicant: SHARP KABUSHIKI KAISHA , OSAKA UNIVERSITY
Inventor： Osamu NAKAMURA , Hiroki TAKAHASHI , Jungo GOTO , Kazunari YOKOMAKURA , Yasuhiro HAMAGUCHI , Shinsuke IBI , Seiichi SAMPEI , Shinichi MIYAMOTO
CPC classification number: H04L25/0222 , H04L1/0047 , H04L25/03318 , H04L27/2647 , H04W88/08
Abstract: A reception unit for receiving a signal representing a bit sequence, a channel estimation unit for estimating channel variation that the received signal undergoes and calculating a channel estimation value representing the channel variation, and a demodulation unit for demodulating the signal by using the channel estimation value and restoring each bit included in the bit sequence represented by the received signal are included, and the demodulation unit performs demodulation of the received signal by using a value indicating magnitude of error included in the channel estimation value.
Abstract translation: 接收单元，用于接收表示比特序列的信号，信道估计单元，用于估计接收信号经历的信道变化，并计算表示信道变化的信道估计值;以及解调单元，用于通过使用信道估计值来解调该信号 并且包括恢复由接收信号表示的比特序列中的每个比特，并且解调单元通过使用指示信道估计值中包括的误差大小的值来执行接收信号的解调。
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4.发明申请WIRELESS COMMUNICATION SYSTEM, CONTROL STATION APPARATUS AND TERMINAL APPARATUS 审中-公开无线通信系统，控制站设备和终端设备公开(公告)号：US20140219318A1
公开(公告)日：2014-08-07
申请号：US14247047
申请日：2014-04-07
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Yasuhiro HAMAGUCHI , Kazunari YOKOMAKURA , Osamu NAKAMURA , Jungo GOTO , Hiroki TAKAHASHI , Toshizo NOGAMI
IPC: H04L27/00
CPC classification number: H04L27/0008 , H04B7/0413 , H04B7/0456 , H04B7/063 , H04B7/068 , H04B7/0689 , H04L5/0023 , H04L5/0091 , H04L25/03343 , H04L2025/03414 , H04L2025/03808 , H04W48/08
Abstract: A control station apparatus comprising a transmitter that is configured to transmit, to a terminal apparatus, information indicating an allocation method for allocating frequency signals to a plurality of subcarriers, where the information indicates a communication scheme which is one of Single Carrier Frequency Division Multiple Access (SC-FDMA) scheme and Clustered Discrete Fourier Transform-spread-OFDM (Clustered DFT-S-OFDM) scheme.
Abstract translation: 一种控制站装置，包括：发射机，被配置为向终端设备发送指示用于向多个子载波分配频率信号的分配方法的信息，其中所述信息指示作为单载波频分多址 （SC-FDMA）方案和聚类离散傅立叶变换扩展OFDM（Clustered DFT-S-OFDM）方案。
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公开(公告)号：US20180310294A1
公开(公告)日：2018-10-25
申请号：US16022895
申请日：2018-06-29
Applicant: Sharp Kabushiki Kaisha
Inventor： Jungo GOTO , Osamu NAKAMURA , Hiromichi TOMEBA , Shiro WAKAHARA , Yasuhiro HAMAGUCHI
Abstract: In an LTE-A system, there is a problem that it is difficult to perform stable communication in a case where there is a time when another system occupies an unlicensed band being used. There is provided a base station apparatus that communicates with a terminal device in a second frequency band different from a first frequency band capable of being used as a dedicated frequency band. The base station apparatus includes: a wireless transmission unit that transmits data or control information to the terminal device; and a wireless reception unit that receives data or control information transmitted from the terminal device. The wireless transmission unit transmits data to the terminal device, and the wireless reception unit performs a process of receiving ACK/NACK transmitted from the terminal device in a subframe of an initial uplink after communication of another system is ended in a case where the other system performs the communication in the second frequency band at a reception timing of the ACK/NACK of the data transmission.
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Patent Agency Ranking
公开(公告)号：US20170288754A1
公开(公告)日：2017-10-05
申请号：US15507281
申请日：2015-08-28
Applicant: Sharp Kabushiki Kaisha
Inventor： Hiromichi TOMEBA , Jungo GOTO , Osamu NAKAMURA , Shiro WAKAHARA , Yasuhiro HAMAGUCHI
IPC: H04B7/06 , H04B7/024 , H04W72/04 , H04B7/0452
CPC classification number: H04B7/0617 , H04B7/024 , H04B7/0413 , H04B7/0452 , H04W16/28 , H04W16/32 , H04W56/0015 , H04W72/046 , H04W92/20
Abstract: Provided are a base station apparatus, a terminal device, and a communication method that can realize a small cell network while reducing load on the terminal device, the small cell network including a small cell performing massive MIMO transfer. The base station apparatus of the present invention is a second base station apparatus included in a communication system in which a plurality of the second base station apparatuses capable of acquiring assistance information from a first base station apparatus communicates with a terminal device, the base station apparatus including a codebook that describes a plurality of linear filters, in which the same cell identification number as at least one of the other second base station apparatuses is configured, and a synchronization signal correlated with the cell identification number is transmitted on the basis of the plurality of linear filters after first precoding of the synchronization signal.
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公开(公告)号：US20170127444A1
公开(公告)日：2017-05-04
申请号：US15319823
申请日：2015-06-18
Applicant: Sharp Kabushiki Kaisha
Inventor： Jungo GOTO , Osamu NAKAMURA , Hiromichi TOMEBA , Shiro WAKAHARA , Yasuhiro HAMAGUCHI
CPC classification number: H04W74/0808 , H04L27/0006 , H04L27/2601 , H04W16/14 , H04W56/0015
Abstract: In an LTE-A system, there is a problem that it is difficult to perform stable communication in a case where there is a time when another system occupies an unlicensed band being used. There is provided a base station apparatus that communicates with a terminal device in a second frequency band different from a first frequency band capable of being used as a dedicated frequency band. The base station apparatus includes: a CS determination unit that performs carrier sense in a subframe of carrier sense configured in the second frequency band; a synchronization signal generation unit that generates a synchronization signal; and a wireless transmission unit that transmits the synchronization signal. In a case where the CS determination unit determines that another system does not perform communication in the second frequency band, the wireless transmission unit transmits the synchronization signal generated by the synchronization signal generation unit.
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公开(公告)号：US20160150562A1
公开(公告)日：2016-05-26
申请号：US14901201
申请日：2014-06-25
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Osamu NAKAMURA , Jungo GOTO , Yasuhiro HAMAGUCHI
CPC classification number: H04W72/1294 , H04L1/0061 , H04L5/0048 , H04L5/0053 , H04L5/0094 , H04W72/12
Abstract: An amount of control information per subframe is reduced by keeping the amount of control information constant in both a case where multi-subframe scheduling is performed and a case where multi-subframe scheduling is not performed.
Abstract translation: 通过在执行多子帧调度的情况下保持控制信息的量不变，并且不执行多子帧调度的情况，减少每个子帧的控制信息量。
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公开(公告)号：US20150341910A1
公开(公告)日：2015-11-26
申请号：US14646462
申请日：2013-11-01
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Takashi HAYASHI , Hiroki TAKAHASHI , Jungo GOTO , Osamu NAKAMURA , Kazunari YOKOMAKURA , Yasuhiro HAMAGUCHI
CPC classification number: H04W72/042 , H04L5/001 , H04L5/0023 , H04L5/0042 , H04L5/0051 , H04W16/32 , H04W28/18 , H04W52/146 , H04W52/367 , H04W52/40 , H04W52/58 , H04W88/02
Abstract: A terminal apparatus, which performs communication with a first base station apparatus and a second base station apparatus which has a smaller maximum transmit power than that of the first base station apparatus, includes a control unit that extracts control information from signals received from the first base station apparatus and the second base station apparatus and sets communication parameters of an uplink data signal, in which a bit number of information which is extracted by the control unit as the control information from the signal from the second base station apparatus is smaller than a bit number of information which is extracted as the control information from the signal from the first base station apparatus.
Abstract translation: 与第一基站装置进行通信的终端装置和具有比第一基站装置的发送功率小的最大发送功率的第二基站装置包括控制部，其从从第一基站接收的信号中提取控制信息 并且设置上行链路数据信号的通信参数，其中由来自第二基站装置的信号的由控制单元提取的信息的比特数作为控制信息小于比特 从作为控制信息的第一基站装置的信号中提取的信息数。
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公开(公告)号：US20190132866A1
公开(公告)日：2019-05-02
申请号：US16091518
申请日：2017-02-22
Applicant: SHARP KABUSHIKI KAISHA
Inventor： Jungo GOTO , Osamu NAKAMURA , Takashi YOSHIMOTO , Yasuhiro HAMAGUCH
Abstract: In a case of a contention-based radio communication technique, it is necessary to identify a terminal apparatus that has performed data transmission among terminal apparatuses sharing a frequency resource. There is a problem that it is difficult to identify the terminal apparatus that has performed data transmission in a case with a large number of terminal apparatuses that are non-orthogonally spatial multiplexed. Included are: a reception processing unit possible to perform first data reception of receiving a data signal transmitted without SR reception and control information of transmission permission and second data reception of receiving a data signal transmitted after SR reception or transmission of control information of transmission permission; an identification signal separator configured to separate an identification signal; a transmission terminal identification unit configured to identify the transmission device, based on the identification signal; and a control information transmitting unit configured to transmit in advance a transmission parameter. The reception processing unit receives the identification signal transmitted based on the transmission parameter, only in the first data reception, and the transmission terminal identification unit identifies whether or not the data transmission is performed, from the identification signal.
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