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公开(公告)号：US20240204961A1
公开(公告)日：2024-06-20
申请号：US18587302
申请日：2024-02-26
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Akihiko NISHIO , Seigo NAKAO
IPC: H04L5/00 , H04B7/0413 , H04B7/0452 , H04L1/1607 , H04L1/1829 , H04L27/26 , H04W72/20 , H04W72/21
CPC classification number: H04L5/0053 , H04B7/0413 , H04B7/0452 , H04L1/1671 , H04L1/1861 , H04L5/0023 , H04L5/0055 , H04L5/0057 , H04W72/20 , H04W72/21 , H04L27/2636
Abstract: This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal, which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.
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公开(公告)号：US20240146434A1
公开(公告)日：2024-05-02
申请号：US18407811
申请日：2024-01-09
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Daichi IMAMURA , Akihiko NISHIO , Yoshihiko OGAWA , Masaru FUKUOKA
CPC classification number: H04J11/0053 , H04B1/713 , H04B7/024 , H04B17/354 , H04J13/0062 , H04J13/0074 , H04L1/20 , H04L5/0007 , H04L5/0035 , H04L5/0051 , H04L5/0091 , H04L1/0026
Abstract: Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.
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公开(公告)号：US20240040519A1
公开(公告)日：2024-02-01
申请号：US18487725
申请日：2023-10-16
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Akihiko NISHIO , Daichi IMAMURA , Yoshihiko OGAWA , Atsushi MATSUMOTO
IPC: H04W52/36 , H04L5/00 , H04W72/044
CPC classification number: H04W52/365 , H04L5/0007 , H04L5/0053 , H04W72/0473
Abstract: A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.
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公开(公告)号：US20230292220A1
公开(公告)日：2023-09-14
申请号：US18322424
申请日：2023-05-23
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Seigo NAKAO , Akihiko NISHIO , Masayuki HOSHINO , Daichi IMAMURA , Atsushi SUMASU
IPC: H04W48/02 , H04B7/0413 , H04L1/00 , H04L1/1867 , H04L5/00 , H04L1/1829 , H04L1/1607 , H04W28/04 , H04W48/12
CPC classification number: H04W48/02 , H04B7/0413 , H04L1/0031 , H04L1/1893 , H04L5/001 , H04L5/0023 , H04L5/0057 , H04L1/0026 , H04L1/1861 , H04L1/1671 , H04L5/0055 , H04W28/04 , H04W48/12
Abstract: An integrated circuit includes circuitry, which, in operation, controls transmitting downlink data to a terminal apparatus; receiving a plurality of transport blocks which are transmitted in a same time period using a same frequency band in a spatial multiplexing scheme, wherein a same acknowledgement information (ACK/NACK) relating to an error detection result of the downlink data is scrambled with different scrambling schemes respectively for the plurality of transport blocks and the respectively scrambled ACK/NACK is multiplexed with data on respective ones of the plurality of transport blocks, and channel quality information (CQI) of a downlink channel is multiplexed with the data on only one transport block of the plurality of transport blocks by the terminal apparatus; and extracting the ACK/NACK and the CQI from the received plurality of transport blocks.
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公开(公告)号：US20230024432A1
公开(公告)日：2023-01-26
申请号：US17959071
申请日：2022-10-03
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Akihiko NISHIO , Daichi IMAMURA , Yoshihiko OGAWA , Atsushi MATSUMOTO
Abstract: A radio communication apparatus is provided, which includes a receiver and a controller. The receiver, in operation, receives a first power headroom (PHR), which is obtained by subtracting a transmit power for a data channel from a maximum transmit power at a mobile station and which is transmitted from the mobile station, and receives a second PHR, which is obtained by subtracting the transmit power for the data channel and a transmit power for a control channel from the maximum transmit power at the mobile station and which is transmitted from the mobile station. The controller, in operation, selectively sets a simultaneous transmission of the data channel and the control channel in different frequency bands to be performed by the mobile station. When the data channel and the control channel are simultaneously transmitted in different frequency bands from the mobile station, the second PHR is obtained and transmitted from the mobile station.
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Patent Agency Ranking
公开(公告)号：US20190230700A1
公开(公告)日：2019-07-25
申请号：US16375269
申请日：2019-04-04
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Daichi IMAMURA , Ayako HORIUCHI , Sadaki FUTAGI
CPC classification number: H04W72/1289 , H04L5/0007 , H04L5/0037 , H04L5/006 , H04L5/0085 , H04L5/023 , H04W88/085
Abstract: A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section divides the RBs into the RB groups, the RB control unit performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.
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公开(公告)号：US20180323937A1
公开(公告)日：2018-11-08
申请号：US16040304
申请日：2018-07-19
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Akihiko NISHIO , Seigo NAKAO
IPC: H04L5/00 , H04L1/18 , H04L1/16 , H04W72/04 , H04B7/0452 , H04B7/0413
CPC classification number: H04L5/0053 , H04B7/0413 , H04B7/0452 , H04L1/1671 , H04L1/1861 , H04L5/0023 , H04L5/0055 , H04L5/0057 , H04L27/2636 , H04W72/0406 , H04W72/0413
Abstract: This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal (200), which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit (204) that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit (205) that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.
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公开(公告)号：US20180183555A1
公开(公告)日：2018-06-28
申请号：US15894199
申请日：2018-02-12
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Akihiko NISHIO , Yoshihiko OGAWA , Seigo NAKAO , Masayuki HOSHINO
IPC: H04L5/00 , H04J11/00 , H04L23/02 , H04B7/024 , H04J13/00 , H04L12/801 , H04L27/26 , H04B7/0452
CPC classification number: H04L5/0048 , H04B7/024 , H04B7/0452 , H04J11/0023 , H04J11/0026 , H04J11/0053 , H04J11/0056 , H04J13/0062 , H04L5/0032 , H04L5/0035 , H04L23/02 , H04L27/2613 , H04L47/34
Abstract: Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit (102) sets the cell IDs of all cells in the CoMP set in a cell selection unit (104), and a serving cell setting unit (103) sets the cell ID of the serving cell in the cell selection unit (104). The cell selection unit (104) selects the cell ID having a number closest to the cell ID of the serving cell from the cells in the CoMP set. A sequence information calculation unit (106) derives a sequence group number from the selected cell ID, and the sequence information calculation unit (106) calculates a sequence number from the derived sequence group number and a transmission bandwidth of the DM-RS.
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公开(公告)号：US20180048449A1
公开(公告)日：2018-02-15
申请号：US15664689
申请日：2017-07-31
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Akihiko NISHIO , Seigo NAKAO
CPC classification number: H04L5/0053 , H04B7/0413 , H04B7/0452 , H04L1/1671 , H04L1/1861 , H04L5/0023 , H04L5/0055 , H04L5/0057 , H04L27/2636 , H04W72/0406 , H04W72/0413
Abstract: This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal (200), which uses a plurality of different layers to transmit two code words in which control information is placed, comprises: a resource amount determining unit (204) that determines, based on a lower one of the encoding rates of the two code words or based on the average value of the reciprocals of the encoding rates of the two code words, resource amounts of control information in the respective ones of the plurality of layers; and a transport signal forming unit (205) that places, in the two code words, the control information modulated by use of the resource amounts, thereby forming a transport signal.
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40.发明申请公开(公告)号：US20170070964A1
公开(公告)日：2017-03-09
申请号：US15355169
申请日：2016-11-18
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Daichi IMAMURA , Akihiko NISHIO , Yoshihiko OGAWA , Shinsuke TAKAOKA
CPC classification number: H04W52/241 , H04L5/0048 , H04L5/0051 , H04W52/146 , H04W52/16 , H04W52/325 , H04W72/0473
Abstract: Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal controls the transmission power of a second signal by adding an offset to the transmission power of a first signal; an offset-setting unit sets an offset correction value in response to a transmission time gap between a third signal transmitted the previous time and the second signal transmitted this time; and a transmission power control unit controls the transmission power of the second signal using the correction value.
Abstract translation: 本发明公开了一种无线通信装置，其能够抑制基站中的TPC误差引起的SINR测量精度的劣化，能够抑制终端的功耗的增加。 终端通过向第一信号的发送功率添加偏移来控制第二信号的发送功率; 偏移设定单元响应于在前一次发送的第三信号与此次发送的第二信号之间的传输时间间隔来设置偏移校正值; 发送功率控制单元使用校正值来控制第二信号的发送功率。
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