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公开(公告)号：US20230013540A1
公开(公告)日：2023-01-19
申请号：US17955420
申请日：2022-09-28
Applicant: SUN PATENT TRUST
Inventor： Masayuki HOSHINO , Akihiko NISHIO , Seigo NAKAO , Daichi IMAMURA , Yasuaki YUDA
Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
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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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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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公开(公告)号：US20250039849A1
公开(公告)日：2025-01-30
申请号：US18911090
申请日：2024-10-09
Applicant: SUN PATENT TRUST
Inventor： Masayuki HOSHINO , Akihiko NISHIO , Seigo NAKAO , Daichi IMAMURA , Yasuaki YUDA
IPC: H04W72/04 , H04B7/06 , H04B17/00 , H04B17/24 , H04L1/00 , H04L1/1607 , H04L5/00 , H04W24/10 , H04W72/1268 , H04W88/02
Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
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Patent Agency Ranking
公开(公告)号：US20200252935A1
公开(公告)日：2020-08-06
申请号：US16853001
申请日：2020-04-20
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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公开(公告)号：US20200178219A1
公开(公告)日：2020-06-04
申请号：US16785189
申请日：2020-02-07
Applicant: SUN PATENT TRUST
Inventor： Masayuki HOSHINO , Akihiko NISHIO , Seigo NAKAO , Daichi IMAMURA , Yasuaki YUDA
Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
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8.发明公开公开(公告)号：US20240114377A1
公开(公告)日：2024-04-04
申请号：US18539013
申请日：2023-12-13
Applicant: Sun Patent Trust
Inventor： Yasuaki YUDA , Seigo NAKAO , Ayako HORIUCHI , Daichi IMAMURA , Masayuki HOSHINO , Atsushi SUMASU
CPC classification number: H04W24/10 , H04L1/0026 , H04L1/20 , H04L5/0057 , H04L12/189 , H04L27/28
Abstract: To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.
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公开(公告)号：US20190191413A1
公开(公告)日：2019-06-20
申请号：US16282092
申请日：2019-02-21
Applicant: SUN PATENT TRUST
Inventor： Masayuki HOSHINO , Akihiko NISHIO , Seigo NAKAO , Daichi IMAMURA , Yasuaki YUDA
CPC classification number: H04W72/04 , H04B7/0626 , H04B17/0085 , H04B17/24 , H04L1/0003 , H04L1/0009 , H04L1/0027 , H04L1/1607 , H04L5/0048 , H04W24/10 , H04W72/1268 , H04W88/02
Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
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公开(公告)号：US20160255635A1
公开(公告)日：2016-09-01
申请号：US15149601
申请日：2016-05-09
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
IPC: H04W72/04
CPC classification number: H04W72/0453 , H04L1/0042 , H04L1/0061 , H04L5/0023 , H04L5/0039 , H04L5/0048 , H04L25/0226 , H04L25/03159 , H04L27/2602
Abstract: Disclosed are a wireless communication base station device and a division number determination method that improve 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.
Abstract translation: 公开了一种无线通信基站装置和分割数确定方法，无论来自无线通信终端装置的发送信号的频域中的分割数如何，都可以在维持信道估计精度的同时提高频率分集效应。 确定单元确定来自无线通信终端设备的发送信号的频域中的分割数。 这里，确定单元随着发送信号中包括的导频块的数量的增加，增加来自无线通信终端装置的发送信号的频域的分割数。 此外，调度单元根据由确定单元确定的分割数来调度分配的发送信号的频率资源。
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