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公开(公告)号：US20220116857A1
公开(公告)日：2022-04-14
申请号：US17559788
申请日：2021-12-22
Inventor： AYAKO HORIUCHI , HIDETOSHI SUZUKI
Abstract: A communication apparatus includes circuitry and a transmitter. The circuitry sets a number of physical downlink control channel (PDCCH) candidates per aggregation level in a search space of a signal, and indicates the set number of PDCCH candidates to a user equipment (UE) wherein the search space is monitored by the UE based on the set number of PDCCH candidates. The transmitter transmit the signal. A maximum number of monitored PDCCH candidates per slot depends on a subcarrier interval. A first subcarrier interval is one-quarter as wide as a second subcarrier interval, and a first maximum number of monitored PDCCH candidates per slot with the first subcarrier interval is not four times as high as a second maximum number of monitored PDCCH candidates per slot with the second subcarrier interval.
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公开(公告)号：US20200329459A1
公开(公告)日：2020-10-15
申请号：US16306378
申请日：2017-05-19
Inventor： TAKASHI IWAI , AYAKO HORIUCHI , TETSUYA YAMAMOTO , TOMOHUMI TAKATA
Abstract: In a base station, a transmission unit transmits a downlink control signal and downlink data assigned by the downlink control signal in a time unit including a downlink time resource for the downlink control signal, a downlink time resource for the downlink data, and an uplink time resource for a response signal for the downlink data. A reception unit receives the response signal in the time unit. A transmission bandwidth of the response signal is equal to or lower than a transmission bandwidth of the downlink data corresponding to the response signal.
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公开(公告)号：US20200187094A1
公开(公告)日：2020-06-11
申请号：US16615805
申请日：2018-04-17
Inventor： AYAKO HORIUCHI , HIDETOSHI SUZUKI
Abstract: In a base station, a setting unit for setting the number of detections sets at least one search space that includes plural control channel candidates to be targets of detection of a control signal in a terminal, and a transmission unit transmits the control signal that is mapped on any of the plural control channel candidates in the search space. Here, the number of detections in the search space by the terminal is determined based on settings of the terminal.
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公开(公告)号：US20200008071A1
公开(公告)日：2020-01-02
申请号：US16489697
申请日：2018-01-19
Inventor： AYAKO HORIUCHI , HIDETOSHI SUZUKI
Abstract: A base station includes: an allocating circuit that allocates, to a resource set which is monitored by a terminal belonging to a group, a first control signal which contains information indicating the configuration of a slot and a second control signal which does not contain the information indicating the configuration of a slot; and a transmitter that transmits the first control signal and the second control signal to a terminal. The number of symbols to which the first control signal is allocated is made equal to the smallest number of symbols to which the second control signal is allocated.
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公开(公告)号：US20190288814A1
公开(公告)日：2019-09-19
申请号：US16428090
申请日：2019-05-31
Inventor： AYAKO HORIUCHI , HIDETOSHI SUZUKI
Abstract: A resource assignment determiner determines a resource for a PDSCH intended for an MTC terminal, and a transmitter transmits an MPDCCH that includes resource assignment bits indicating the resource thus determined and transmits the PDSCH using the resource thus determined. The MPDCCH is a PDCCH intended for the MTC terminal. The resource assignment bits are associated with a resource that is used when the MPDCCH and the PDSCH are transmitted in the same subframe and a resource that is used when the MPDCCH and the PDSCH are transmitted in different subframes.
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Patent Agency Ranking
公开(公告)号：US20190230701A1
公开(公告)日：2019-07-25
申请号：US16373064
申请日：2019-04-02
IPC: H04W72/14 , H04W72/04 , H04L1/00 , H04B17/336 , H04W72/12
Abstract: The present disclosure relates to a data transmitting device, data receiving device and the corresponding data transmitting method and data receiving method for transmitting/receiving data over a wireless channel in a communication system. In particular, a first resource grant is received for a data transmission in a subframe and a second resource grant for a data transmission of data in said subframe. Then, it is determined, according to which of the first resource grant and the second resource grant data are to be transmitted in the subframe; and the data is transmitted in the subframe according to the selected first grant or second grant.
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公开(公告)号：US20190174493A1
公开(公告)日：2019-06-06
申请号：US16321316
申请日：2017-07-14
Inventor： AYAKO HORIUCHI , HIDETOSHI SUZUKI
Abstract: A DCI receiving unit receives downlink control information (DCI) indicative of allocation of an uplink (UL) signal of a first TTI (long TTI) or an uplink signal of a second TTI (sTTI) having a shorter TTI length than the first TTI; a transmission power determination unit determines transmission power of the uplink signal of the first TTI and transmission power of the uplink signal of the second TTI; and a transmitting unit transmits the uplink signal of the first TTI and the uplink signal of the second TTI by using the determined transmission power on the basis of the downlink control information. The transmission power determination unit reserves desired transmission power for the uplink signal of the second TTI in the first TTI in a case where decoding of the downlink control information indicative of allocation of the uplink signal of the second TTI to be transmitted within the first TTI (e.g., a subframe) is completed before start of transmission of the uplink signal of the first TTI.
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公开(公告)号：US20190149309A1
公开(公告)日：2019-05-16
申请号：US16246233
申请日：2019-01-11
Inventor： QUAN KUANG , HIDETOSHI SUZUKI , ALEXANDER GOLITSCHEK EDLER VON ELBWART , SUJUAN FENG , AYAKO HORIUCHI
Abstract: The present disclosure relates to a resource allocation procedure for allocating time-frequency radio resources by a scheduler in a mobile communication system. A plurality of numerology schemes are defined, each partitioning a plurality of radio resources of the mobile communication system into resource scheduling units in a different manner. A reference resource set is defined per numerology scheme, each being associated to a set of radio resources usable for being allocated according to the respective numerology scheme. The reference resource set of at least one numerology scheme overlaps with the reference resource set of at least another numerology scheme in the frequency and/or time domain. The resource allocation procedure is performed for allocating radio resources to one or more user terminals according to the numerology schemes. The resource allocation procedure is performed for each numerology scheme based on a scheduling time interval defined for the respective numerology scheme.
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公开(公告)号：US20190020455A1
公开(公告)日：2019-01-17
申请号：US16064971
申请日：2016-12-08
Inventor： TETSUYA YAMAMOTO , AYAKO HORIUCHI
Abstract: A repetition unit (212) performs a repetition for mapping a data signal and a demodulation reference signal (DMRS) repeatedly at a symbol level over a plurality of subframes. A signal allocation unit (213) maps, in the a plurality of subframes, the repeated DMRS to symbols other than symbols corresponding to an SRS resource candidate, which is a candidate for a resource to which a sounding reference signal (SRS) to be used to measure an uplink received signal quality is to be mapped. A transmission unit (216) transmits an uplink signal (PUSCH) including the DMRS and the data signal over the a plurality of subframes.
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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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