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公开(公告)号：US20170374678A1
公开(公告)日：2017-12-28
申请号：US15698103
申请日：2017-09-07
Applicant: SUN PATENT TRUST
Inventor： Yoshihiko OGAWA , Akihiko NISHIO , Daichi IMAMURA , Seigo NAKAO , Masayuki HOSHINO , Takashi IWAI , Sadaki FUTAGI
CPC classification number: H04W72/1289 , H04L1/00 , H04L1/0004 , H04L1/0041 , H04L1/0045 , H04L5/0023 , H04L5/0028 , H04L5/0041 , H04L5/006 , H04L5/0064 , H04L5/0092 , H04L27/2601 , H04L27/2607 , H04L27/2614 , H04L27/2636 , H04L27/2647 , H04W28/06 , H04W72/042 , H04W72/0453 , H04W72/0466 , H04W72/0473 , H04W72/12 , H04W72/1268 , H04W84/042
Abstract: A wireless communication base station device, terminal device, and method have reduced signaling while maintaining high scheduling gain. A judgment unit pre-stores a correspondence between the number of code words and the number of dusters to reduce the maximum value for the number of dusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality, and the maximum value for the number of clusters that is output by the judgment unit, a scheduling unit schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters
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公开(公告)号：US20170026973A1
公开(公告)日：2017-01-26
申请号：US15289780
申请日：2016-10-10
Applicant: SUN PATENT TRUST
Inventor： Akihiko NISHIO , Masaru FUKUOKA
CPC classification number: H04W72/0453 , H04B7/0452 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0005 , H04L5/0053 , H04W24/10 , H04W52/221 , H04W52/325 , H04W72/0406 , H04W72/042 , H04W72/0493 , H04W88/08
Abstract: A base station can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding section performs encoding processing to an SCCH (Shared Control Channel) of each mobile station, each modulating section performs modulation processing to the encoded SCCH, an arranging section arranges the SCCH to each mobile station to one of a plurality of subcarriers which configure an OFDM symbol, and transmission power control section controls transmission power of the SCCH based on reception quality information reported from each mobile station. The arranging section arranges a plurality of the SCCH to be under transmission power control to one of the subcarriers so that combinations at resource blocks are the same.
Abstract translation: 基站可以防止由于对控制信道的发射功率控制的影响而引起的数据信道应用控制精度的恶化。 在基站中，每个编码部分对每个移动台的SCCH（共享控制信道）执行编码处理，每个调制部分对编码的SCCH执行调制处理，一个排列部分将每个移动台的SCCH布置成多个 配置OFDM符号的子载波，发送功率控制部根据从各移动台报告的接收质量信息来控制SCCH的发送功率。 配置部将多个SCCH进行发送功率控制配置到子载波之一，使得资源块的组合相同。
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公开(公告)号：US20250151067A1
公开(公告)日：2025-05-08
申请号：US19019052
申请日：2025-01-13
Applicant: Sun Patent Trust
Inventor： Seigo NAKAO , Akihiko NISHIO , Ayako HORIUCHI , Daichi IMAMURA
IPC: H04W72/21 , H04L1/00 , H04L1/08 , H04L1/1607 , H04L1/1829 , H04W28/04 , H04W52/02 , H04W72/04 , H04W72/20 , H04W76/28
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.
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公开(公告)号：US20250150989A1
公开(公告)日：2025-05-08
申请号：US19014973
申请日：2025-01-09
Applicant: Sun Patent Trust
Inventor： Takashi IWAI , Akihiko NISHIO , Daichi IMAMURA , Yoshihiko OGAWA , Atsushi MATSUMOTO
IPC: H04W52/36 , H04L5/00 , H04W72/044
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：US20250089034A1
公开(公告)日：2025-03-13
申请号：US18955707
申请日：2024-11-21
Applicant: Sun Patent Trust
Inventor： Takashi Iwai , Sadaki FUTAGI , Daichi IMAMURA , Akihiko NISHIO , Seigo NAKAO , Yoshihiko OGAWA
Abstract: A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus, a scheduling section allocates frequency resources to frequency allocation target terminals based on set frequency allocation units, and a frequency allocation parameter setting section adjusts the set frequency allocation units set in the scheduling section based on cluster numbers. Due to this, in each cluster number, frequency resources can be allocated based on the most suitable frequency allocation units with respect to the signaling bit number. As a result, the amount of signaling for frequency resource allocation information can be reduced. Further, system throughput can be maintained by making the cluster number, which is a parameter having little effect on system throughput, a setting parameter for frequency allocation units.
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Patent Agency Ranking
公开(公告)号：US20240298310A1
公开(公告)日：2024-09-05
申请号：US18663206
申请日：2024-05-14
Applicant: Sun Patent Trust
Inventor： Akihiko NISHIO , Seigo NAKAO
IPC: H04W72/0453 , H04L1/00 , H04L5/00 , H04W72/23
CPC classification number: H04W72/0453 , H04L1/0038 , H04L5/0007 , H04L5/003 , H04L5/0053 , H04L5/0055 , H04W72/23 , H04L1/0025
Abstract: A wireless communication base station device which makes it possible to provide a base station, terminal and CCE allocation method capable of reducing the number of times blind decoding of a terminal is performed, without increasing the CCE block rate, even when a plurality of unit bands are set in a terminal. In this device, a search space setting section (103) sets in each of a plurality of unit bands a common search space in respect of a terminal which is communicating using the plurality of unit bands and other terminals, and sets in each of the plurality of unit bands an individual search space in respect of the terminal. An allocation section (106) allocates control information solely to CCEs within the common search spaces set in specified unit bands among the plurality of unit bands, or solely to CCEs within individual search spaces set in specified unit bands.
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公开(公告)号：US20240107548A1
公开(公告)日：2024-03-28
申请号：US18523691
申请日：2023-11-29
Applicant: Sun Patent Trust
Inventor： Akihiko NISHIO , Seigo NAKAO , Ayako HORIUCHI , Yasuaki YUDA , Sujuan FENG , Michael EINHAUS
CPC classification number: H04W72/23 , H04L5/0007 , H04L5/0053 , H04L5/0055 , H04L5/14
Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.
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28.发明公开公开(公告)号：US20230370188A1
公开(公告)日：2023-11-16
申请号：US18360740
申请日：2023-07-27
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Akihiko NISHIO , Takashi IWAI , Seigo NAKAO , Daichi IMAMURA , Atsushi SUMASU
CPC classification number: H04J11/003 , H04B7/0452 , H04J13/0048 , H04J13/18 , H04W72/23 , H04W72/54 , H04B7/0689 , H04L5/005 , H04W88/02
Abstract: A terminal apparatus includes circuitry and a transmitter. The circuitry, in operation, generates a reference signal using a cyclic shift value and an orthogonal sequence, which are associated with each other. The orthogonal sequence is one of two orthogonal sequences corresponding to a first orthogonal sequence [1, 1] and a second orthogonal sequence [1, −1]. The cyclic shift value is one of 12 cyclic shift values ranging from 0 to 11. The transmitter, in operation, transmits the reference signal multiplexed with a data signal. Two of the cyclic shift values having a difference of 6 are respectively associated with the two orthogonal sequences.
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公开(公告)号：US20230024162A1
公开(公告)日：2023-01-26
申请号：US17954231
申请日：2022-09-27
Applicant: Sun Patent Trust
Inventor： Akihiko NISHIO , Seigo NAKAO , Ayako HORIUCHI , Yasuaki YUDA , Sujuan FENG , Michael EINHAUS
Abstract: Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station maps a downstream allocation control information unit, which is addressed to a terminal, to a first resource region, which can be used for any of a downstream control channel region and a downstream data channel region, or to a second resource region, which can be used only for the downstream control channel, so as to transmit the downstream allocation control information unit. In the base station, a control unit establishes a scale of the PDCCH region, and a transmission region establishing unit establishes, on the basis of a scale value established by the control unit, a mapping region to which the DCI is mapped within the R-PDCCH region and the PDCCH region.
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公开(公告)号：US20220312420A1
公开(公告)日：2022-09-29
申请号：US17839385
申请日：2022-06-13
Applicant: Sun Patent Trust
Inventor： Yoshihiko OGAWA , Seigo NAKAO , Daichi IMAMURA , Akihiko NISHIO , Masayuki HOSHINO , Katsuhiko HIRAMATSU , Kenichi MIYOSHI , Yasuaki YUDA , Sadaki FUTAGI , Takashi IWAI
Abstract: Disclosed are a wireless communication base station device and a division number determination method that improves the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit.
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