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公开(公告)号：US20180205513A1
公开(公告)日：2018-07-19
申请号：US15746742
申请日：2016-07-14
Inventor： TETSUYA YAMAMOTO , HIDETOSHI SUZUKI , AYAKO HORIUCHI
CPC classification number: H04L5/0044 , H04L1/1861 , H04L5/0007 , H04L5/0048 , H04L5/0055 , H04W4/70 , H04W72/042 , H04W72/0446
Abstract: A receiver (202) receives the same downlink data over one or more subframes through a downlink resource within a narrow band for MTC terminal. A response signal generator (210) generates a response signal as a response to the downlink data. A transmitter (217) transmits the response signal through an uplink resource a predetermined number of subframes after the last subframe of the one or more subframes, the uplink resource being associated in one-to-one correspondence with the number of a downlink resource to which the downlink data is allocated in the last subframe.
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公开(公告)号：US20170373810A1
公开(公告)日：2017-12-28
申请号：US15698054
申请日：2017-09-07
Inventor： LILEI WANG , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , MASAYUKI HOSHINO
CPC classification number: H04L5/0053 , H04L5/005 , H04L5/0051 , H04L5/0064 , H04L5/02 , H04L25/0202 , H04W4/022 , H04W4/70 , H04W72/042
Abstract: Wireless communication methods and devices are provided. The wireless communication method includes transmitting a reference signal and a data signal in a Physical Resource Block (PRB) with a coverage enhancement level, wherein the number of resource elements transmitting the reference signal in the PRB is determined by the coverage enhancement level, the channel type and/or the coding rate of the data signal.
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13.发明公开公开(公告)号：US20230291627A1
公开(公告)日：2023-09-14
申请号：US18319298
申请日：2023-05-17
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
CPC classification number: H04L27/2613 , H04L27/26025 , H04J13/0062 , H04L5/0051
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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公开(公告)号：US20230047328A1
公开(公告)日：2023-02-16
申请号：US17980372
申请日：2022-11-03
Inventor： LILEI WANG , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , MASAYUKI HOSHINO
Abstract: A wireless communication method includes receiving a reference signal and a data signal, based on a coverage enhancement level represented by a number of transmission repetitions; processing the reference signal and the data signal received by the receiving; setting a number of resource elements for transmitting the reference signal based at least on a channel type; and setting usage of resource elements indicated by a System Information Block (SIB). The reference signal is a Cell-specific Reference Signal (CRS) or a Demodulation Reference Signal (DMRS).
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公开(公告)号：US20220271906A1
公开(公告)日：2022-08-25
申请号：US17668232
申请日：2022-02-09
Inventor： LILEI WANG , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO
Abstract: Provided are a user equipment, base station and wireless communication methods related to resource determination for UCI in case of BWP switching in NR. A user equipment comprises: a receiver operative to receive, from a base station in a slot, a Downlink Control Information (DCI) for Bandwidth Part (BWP) switching from a first BWP to a second BWP; circuitry operative to drop a Uplink Control Information (UCI) to be transmitted in a BWP switching period of the first BWP, and to determine the earliest available slot of the second BWP or a third BWP, the BWP switching period being from the slot where the DCI for BWP switching is received until starting the second BWP to which the first BWP is switched according to the DCI; and a transmitter operative to transmit the dropped UCI in the determined earliest available slot of the second BWP or the third BWP to the base station.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20210392022A1
公开(公告)日：2021-12-16
申请号：US16322853
申请日：2017-06-20
Inventor： TAKASHI IWAI , TOMOHUMI TAKATA , HIDETOSHI SUZUKI , TETSUYA YAMAMOTO , QUAN KUANG
Abstract: When a plurality of the subcarrier spacing values are applied, a reference signal is generated by using a sequence having a sequence length corresponding to a first ratio of a first subcarrier spacing set for transmission data to the maximum settable subcarrier spacing. The sequence of the reference signal is mapped to a frequency resource at mapping intervals in accordance with a second ratio which is the reciprocal of the first ratio, and the transmission data and the reference signal are transmitted.
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公开(公告)号：US20210234654A1
公开(公告)日：2021-07-29
申请号：US17230831
申请日：2021-04-14
Inventor： TOMOHUMI TAKATA , TAKASHI IWAI , HIDETOSHI SUZUKI , AYAKO HORIUCHI , JOACHIM LOEHR , TETSUYA YAMAMOTO
Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.
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公开(公告)号：US20200296715A1
公开(公告)日：2020-09-17
申请号：US16769270
申请日：2018-01-04
Inventor： LILEI WANG , HIDETOSHI SUZUKI , TOMOYA NUNOME , TETSUYA YAMAMOTO
Abstract: Provided are a user equipment, base station and wireless communication methods related to multiplexing of UCI in PUSCH in NR. A user equipment comprises: circuitry operative to process UCI bits to be transmitted according to the comparison of the number M of UCI bits generated based on DL assignment (s) before an UL grant from a base station and the number N of UCI bits generated based on DL assignment (s) after the UL grant with the number P of UCI bits indicated in the UL grant and/or the maximum number Q of bits determined based on at least a configured coding rate, wherein each of M, N, P, Q is an integer equal to or larger than 0; and a transmitter operative to transmit the processed UCI bits in PUSCH at a TTI indicated in the UL grant to the base station.
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公开(公告)号：US20200178242A1
公开(公告)日：2020-06-04
申请号：US16631637
申请日：2018-06-12
Inventor： TETSUYA YAMAMOTO , HIDETOSHI SUZUKI
Abstract: In a terminal, a control unit decides a sequence used for an uplink control channel, in accordance with uplink control information, and a transmission unit transmits the uplink control information using the sequence. Here, the sequence is calculated using cell identification information that identifies the cell to which the terminal belongs, and subcell-specific information relating to at least one subcell included in the cell.
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公开(公告)号：US20190149378A1
公开(公告)日：2019-05-16
申请号：US16306847
申请日：2017-06-07
Inventor： TOMOHUMI TAKATA , TAKASHI IWAI , HIDETOSHI SUZUKI , AYAKO HORIUCHI , JOACHIM LOEHR , TETSUYA YAMAMOTO
Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.
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