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公开(公告)号：US20170099651A1
公开(公告)日：2017-04-06
申请号：US15383818
申请日：2016-12-19
Applicant: Sun Patent Trust
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
CPC classification number: H04W72/005 , H04B17/318 , H04B17/345 , H04L5/0073 , H04W24/08 , H04W24/10 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/085
Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.
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公开(公告)号：US12267193B2
公开(公告)日：2025-04-01
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：US11438873B2
公开(公告)日：2022-09-06
申请号：US16887642
申请日：2020-05-29
Applicant: Sun Patent Trust
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
IPC: H04W72/04 , H04W72/00 , H04W24/10 , H04W24/08 , H04L5/00 , H04W72/08 , H04B17/318 , H04B17/345 , H04W36/00
Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.
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44.发明授权公开(公告)号：US10986524B2
公开(公告)日：2021-04-20
申请号：US16722727
申请日：2019-12-20
Applicant: Sun Patent Trust
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Daichi Imamura , Masayuki Hoshino , Atsushi Sumasu
IPC: H04W24/10 , H04L1/00 , H04L1/20 , H04L5/00 , H04L12/18 , H04L27/28 , H04W24/02 , H04B7/26 , H04W84/04
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：US20200337033A1
公开(公告)日：2020-10-22
申请号：US16920306
申请日：2020-07-02
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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Patent Agency Ranking
公开(公告)号：US10667263B2
公开(公告)日：2020-05-26
申请号：US16053256
申请日：2018-08-02
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 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.
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公开(公告)号：US20190029007A1
公开(公告)日：2019-01-24
申请号：US16140155
申请日：2018-09-24
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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48.发明授权公开(公告)号：US10034193B2
公开(公告)日：2018-07-24
申请号：US15605837
申请日：2017-05-25
Applicant: Sun Patent Trust
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Daichi Imamura , Masayuki Hoshino , Atsushi Sumasu
IPC: H04W24/10 , H04L1/00 , H04L1/20 , H04L12/18 , H04L5/00 , H04B7/26 , H04L27/28 , H04W24/02 , H04W84/04
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：US20180070334A1
公开(公告)日：2018-03-08
申请号：US15808745
申请日：2017-11-09
Applicant: Sun Patent Trust
Inventor： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi
CPC classification number: H04W72/005 , H04B17/318 , H04B17/345 , H04L5/0073 , H04W24/08 , H04W24/10 , H04W36/0085 , H04W72/0413 , H04W72/042 , H04W72/0446 , H04W72/085
Abstract: Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node.
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公开(公告)号：US20170142701A1
公开(公告)日：2017-05-18
申请号：US15422200
申请日：2017-02-01
Applicant: Sun Patent Trust
Inventor： Akihiko Nishio , Seigo Nakao , Yasuaki Yuda , Ayako Horiuchi , Sujuan Feng , Michael Einhaus
CPC classification number: H04W72/042 , 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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