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公开(公告)号：US10972231B2
公开(公告)日：2021-04-06
申请号：US16749053
申请日：2020-01-22
Applicant: Sun Patent Trust
Inventor： Kazuki Takeda , Hidetoshi Suzuki , Ayako Horiuchi , Akihiko Nishio
Abstract: A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.
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公开(公告)号：US10932227B2
公开(公告)日：2021-02-23
申请号：US16593189
申请日：2019-10-04
Applicant: Sun Patent Trust
Inventor： Lilei Wang , Hidetoshi Suzuki , Yoshihiko Ogawa , Masayuki Hoshino
Abstract: Provided are wireless communication methods for D2D communication and UEs therefor. A wireless communication method involves transmitting either a first DCI or a second DCI based on whether a first UE and a second UE are to be in a communication type of groupcast or unicast. In the wireless communication methods, the first DCI and the second DCI are scrambled by the UE ID of the second UE if the first UE and the second UE are in the communication type of unicast upon transmitting the first DCI and the second DCI, and the first DCI and the second DCI are scrambled by the group ID if the first UE and the second UE are in the communication type of groupcast upon transmitting the first DCI and the second DCI.
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公开(公告)号：US20210007153A1
公开(公告)日：2021-01-07
申请号：US17029482
申请日：2020-09-23
Applicant: Sun Patent Trust
Inventor： Akihiko Nishio , Masayuki Hoshino , Hidetoshi Suzuki , Takashi Iwai
Abstract: In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit in base station sets a first resource candidate group, which enables terminal capable of receiving a latch response transmitted by demodulation reference signal (DMRS) transmission to be selected, and a second resource candidate group, which enables terminal incapable of receiving a latch response transmitted by DMRS transmission but capable of receiving a latch response transmitted by cell-specific reference signal (CRS) transmission to be selected. Control unit selects DMRS transmission as the latch response transmission method when a resource in which latch preamble has been received is included in the first candidate group, but selects CRS transmission as the latch response transmission method when the resource is included in the second resource candidate group.
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14.发明授权公开(公告)号：US10701642B2
公开(公告)日：2020-06-30
申请号：US16284887
申请日：2019-02-25
Applicant: Sun Patent Trust
Inventor： Lilei Wang , Hidetoshi Suzuki , Sujuan Feng , Masayuki Hoshino , Joachim Loehr
Abstract: The present disclosure provides a power control method in device to device (D2D) communication and a user equipment for performing the power control method. The method includes computing a power value of device to device (D2D) transmission of a user equipment performing D2D communication in a subframe in a serving cell, based on a power control adjustment state of a Long Term Evolution (LTE) wide area network (WAN) uplink channel of the user equipment and an offset or a ratio indicated by a transmit power control (TPC) command indicated in D2D grant or downlink control information (DCI) format 3/3A.
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公开(公告)号：US10700841B2
公开(公告)日：2020-06-30
申请号：US16287784
申请日：2019-02-27
Applicant: Sun Patent Trust
Inventor： Alexander Golitschek Edler von Elbwart , Sujuan Feng , Christian Wengerter , Hidetoshi Suzuki
Abstract: The present invention relates to providing control information within a search space for blind decoding in a multi-carrier communication system. In particular, the control information is carried within a sub-frame of the communication system, the sub-frame including a plurality of control channel elements. The control channel elements may be aggregated into candidates for blind decoding. The number of control channel elements in a candidate is called aggregation level. In accordance with the present invention, the candidates of lower aggregation levels are localized, meaning that the control channel elements of one candidate are located adjacently to each other in the frequency domain. Some candidates of the higher aggregation level(s) are distributed in the frequency.
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Patent Agency Ranking
公开(公告)号：US10674502B2
公开(公告)日：2020-06-02
申请号：US16431477
申请日：2019-06-04
Applicant: Sun Patent Trust
Inventor： Kazuki Takeda , Hidetoshi Suzuki , Ayako Horiuchi , Toru Oizumi
Abstract: A wireless communication terminal capable of increasing the utilization efficiency of ACK/NACK resources and suppressing unnecessary PUSCH band reduction while avoiding ACK/NACK collision. The wireless communication terminal has a configuration provided with: a reception unit for receiving a control signal including ARI via an E-PDCCH set from among one or a plurality of E-PDCCH sets; a control unit for determining an offset value indicated by the ARI on the basis of whether or not a resource region that may be taken by a dynamic ACK/NACK resource corresponding to the E-PDCCH set that has received the control signal and a resource region that may be taken by a dynamic ACK/NACK resource corresponding to another E-PDCCH set overlap, and imparting an offset to the ACK/NACK resource according to the value of the ARI; and a transmission unit for transmitting the ACK/NACK signal using the determined ACK/NACK resource.
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公开(公告)号：US10667171B2
公开(公告)日：2020-05-26
申请号：US16440029
申请日：2019-06-13
Applicant: Sun Patent Trust
Inventor： Prateek Basu Mallick , Joachim Loehr , Hidetoshi Suzuki
Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.
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公开(公告)号：US20200162206A1
公开(公告)日：2020-05-21
申请号：US16749053
申请日：2020-01-22
Applicant: Sun Patent Trust
Inventor： Kazuki Takeda , Hidetoshi Suzuki , Ayako Horiuchi , Akihiko Nishio
Abstract: A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.
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公开(公告)号：US20200153479A1
公开(公告)日：2020-05-14
申请号：US16738355
申请日：2020-01-09
Applicant: Sun Patent Trust
Inventor： Seigo NAKAO , Hidetoshi Suzuki , Daichi Imamura
IPC: H04B1/7143 , H04B7/024 , H04J11/00 , H04J13/22
Abstract: A wireless communication terminal apparatus wherein CoMP communication can normally be performed without increasing the overhead of an upstream line control channel. In this apparatus, a spreading unit primarily spreads a response signal by use of a ZAC sequence established by a control unit. A spreading unit secondarily spreads the response signal, to which CP has been added, by use of a block-wise spread code sequence established by the control unit. The control unit controls, in accordance with sequence numbers and a hopping pattern established therein, the circular shift amount of the ZAC sequence to be used for the primary spread in the spreading unit and the block-wise spread code sequence to be used for the secondary spread in the spreading unit. The hopping pattern established in the control unit is a hopping pattern common to a plurality of base stations that CoMP-receive the response signal.
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公开(公告)号：US10560906B2
公开(公告)日：2020-02-11
申请号：US16384505
申请日：2019-04-15
Applicant: Sun Patent Trust
Inventor： Shinsuke Takaoka , Hidetoshi Suzuki , Akihiko Nishio , Takashi Iwai
Abstract: Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit detects whether or not a total transmission power value of the UL channels transmitted by the plurality of CC exceeds the maximum transmission power specific to the UE. When a plurality of SRS are simultaneously transmitted using a Pcell and a Scell, and power scaling occurs, a power scaling control unit performs power allocation so that transmission power of the SRS of the Pcell has the higher priority than that of the SRS of the Scell.
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