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公开(公告)号：US10531448B2
公开(公告)日：2020-01-07
申请号：US16109331
申请日：2018-08-22
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
Abstract: The present disclosure aims at allowing a demodulation reference signal (DMRS) pattern suitable for a terminal to be selected from among a plurality of DMRS patterns including Legacy DMRS and Reduced DMRS. Disclosed is a terminal including: reception section 21 that receives uplink control information; control section 23 that determines a specific mapping pattern from among a plurality of mapping patterns for an uplink DMRS on the basis of the control information; and DMRS generating section 24 that generates a DMRS according to the specific mapping pattern.
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公开(公告)号：US10355840B2
公开(公告)日：2019-07-16
申请号：US15811153
申请日：2017-11-13
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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公开(公告)号：US10171225B2
公开(公告)日：2019-01-01
申请号：US15611394
申请日：2017-06-01
Inventor： Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Hidetoshi Suzuki , Kazuki Takeda , Lilei Wang
IPC: H04L5/00 , H04W52/32 , H04L1/00 , H04L27/26 , H04B7/0452
Abstract: A communication apparatus includes control circuitry and a transmitter. In operation, the control circuitry selects a Demodulation Reference Signal (DMRS) mapping pattern from among a plurality of DMRS mapping patterns. The DMRS mapping patterns include a first DMRS mapping pattern with first DMRS resource elements to which first DMRSs in a first half of a subframe are mapped and second DMRS resource elements to which second DMRSs in a second half of the subframe are mapped. Also, in operation, the transmitter transmits downlink control information that includes a plurality of bits indicating the selected DMRS mapping pattern.
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公开(公告)号：US09967876B2
公开(公告)日：2018-05-08
申请号：US15003229
申请日：2016-01-21
Inventor： Ayako Horiuchi
CPC classification number: H04W72/0446 , H04L1/1854 , H04W72/0413 , H04W72/042 , H04W72/1268 , H04W72/1273
Abstract: Base stations in a system where a mobile station communicates with one of multiple base stations at each subframe using one of multiple UL-DL configurations include: a signal assigner and a separator. The signal assigner assigns signals to be transmitted to the mobile station, based on assignment information, the assignment information indicating assignment of subframes included in a UL-DL configuration that is configured to the mobile station, for each of the multiple base stations. Multiple subframes included in a UL-DL configuration are assigned to each of the multiple base station devices, for each DL/Sp/UL set made up of subframes correlated by a UL grant-PUSCH timing and a DL assignment(PDSCH)-HARQ ACK timing.
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公开(公告)号：US09844046B2
公开(公告)日：2017-12-12
申请号：US14777702
申请日：2013-04-01
Inventor： Lilei Wang , Kazuki Takeda , Ayako Horiuchi , Alexander Golitschek Edler Von Elbwart , Masayuki Hoshino , Yoshihiko Ogawa
CPC classification number: H04W72/042 , H04L5/0023 , H04L5/0035 , H04L5/0048 , H04L5/0094 , H04L25/0226 , H04W16/32
Abstract: The present invention aims at allowing a demodulation reference signal (DMRS) pattern suitable for a terminal to be selected from among a plurality of DMRS patterns including Legacy DMRS and Reduced DMRS. Disclosed is a terminal including: reception section (21) that receives uplink control information; control section (23) that determines a specific mapping pattern from among a plurality of mapping patterns for an uplink DMRS on the basis of the control information; and DMRS generating section (24) that generates a DMRS according to the specific mapping pattern.
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Patent Agency Ranking
公开(公告)号：US20170272141A1
公开(公告)日：2017-09-21
申请号：US15611394
申请日：2017-06-01
Inventor： Ayako Horiuchi , Alexander Golitschek Edler von Elbwart , Hidetoshi Suzuki , Kazuki Takeda , Lilei Wang
CPC classification number: H04L5/0094 , H04B7/0452 , H04L1/0001 , H04L5/0007 , H04L5/0026 , H04L5/0033 , H04L5/0035 , H04L5/0051 , H04L5/0073 , H04L27/2646 , H04W52/325
Abstract: A communication apparatus includes control circuitry and a transmitter. In operation, the control circuitry selects a Demodulation Reference Signal (DMRS) mapping pattern from among a plurality of DMRS mapping patterns. The DMRS mapping patterns include a first DMRS mapping pattern with first DMRS resource elements to which first DMRSs in a first half of a subframe are mapped and second DMRS resource elements to which second DMRSs in a second half of the subframe are mapped. Also, in operation, the transmitter transmits downlink control information that includes a plurality of bits indicating the selected DMRS mapping pattern.
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公开(公告)号：US09769818B2
公开(公告)日：2017-09-19
申请号：US14904681
申请日：2013-08-09
CPC classification number: H04W72/042 , H04L5/001 , H04L5/0048 , H04L5/0053
Abstract: The present invention relates to a method for configuring a common search space in an Enhanced Physical Downlink Control Channel for at least a first User Equipment and a second User Equipment, by means of a configurable Radio Network Temporary Identifier. The invention further relates to the corresponding transmitter and received implementing the method.
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公开(公告)号：US09622234B2
公开(公告)日：2017-04-11
申请号：US14421755
申请日：2013-07-04
Inventor： Kazuki Takeda , Hidetoshi Suzuki , Ayako Horiuchi
CPC classification number: H04W72/042 , H04L1/0026 , H04L1/1854 , H04L5/0007 , H04L5/0055
Abstract: Provided is a wireless communication terminal such that, in a system in which E-PDCCH control information is transmitted, flexible frequency scheduling for the E-PDCCH control information for a plurality of terminals can be performed by restricting ACK/NACK scheduling, while an upstream data resource is ensured. The wireless communication terminal is provided with: a reception unit that receives a control signal via an extended physical downstream control channel; a control unit that determines an ACK/NACK resource for transmitting an ACK/NACK signal on the basis of an association rule such that, in the extended physical downstream control channel transmitting each extended control channel element in a single frequency resource block, arbitrary successive numbers of ACK/NACK resources correspond to the extended control channel elements contained in different frequency resource blocks; and a transmission unit that transmits the ACK/NACK signal by using the determined ACK/NACK resource.
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公开(公告)号：US09549403B2
公开(公告)日：2017-01-17
申请号：US14830007
申请日：2015-08-19
Inventor： Toru Oizumi , Seigo Nakao , Ayako Horiuchi
CPC classification number: H04W72/042 , H04L5/001 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/006 , H04L5/0094 , H04W72/0446 , H04W84/042
Abstract: In the base station (100), a search space setting unit (103) sets a search space on the basis of a search space setting rule in accordance with R-PDCCH range of a setting target slot, and an allocating unit (108) places DCI in one of a plurality of candidates of to-be-decoded unit range included in the set search space. The search space setting rules are associated with respective numbers of candidates of to-be-decoded unit range corresponding to the respective ones of a plurality of numbers of connections for R-CCE, and a first search space setting rule of a slot 0 and a second search space setting rule of a slot 1 are different from each other in terms of the patterns related to the numbers of candidates of to-be-decoded unit range corresponding to the plurality of numbers of connections for R-CCE.
Abstract translation: 在基站（100）中，搜索空间设定单元（103）根据搜索空间设定规则，根据设定对象时隙的R-PDCCH范围设定搜索空间，分配单元（108） 在设置搜索空间中包括多个候选解码单元范围中的一个的DCI。 搜索空间设置规则与对应于用于R-CCE的多个连接数中的相应数量的待解码单元范围的相应数量的候选数相关联，以及时隙0和第一搜索空间设置规则 关于与针对R-CCE的多个连接数对应的待解码单元范围的候选数量有关的模式，时隙1的第二搜索空间设置规则彼此不同。
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公开(公告)号：US20160183227A1
公开(公告)日：2016-06-23
申请号：US15059204
申请日：2016-03-02
Inventor： Ayako Horiuchi , Akihiko Nishio
CPC classification number: H04W72/1273 , H04L1/0006 , H04L1/0046 , H04L5/0007 , H04L5/0053 , H04L5/0055 , H04W72/0406 , H04W72/042 , H04W72/044 , H04W72/0453 , H04W72/087 , H04W72/14 , H04W88/02
Abstract: In a base station (100), a division number calculating unit (103) calculates the division number of a PRB pair on the basis of a first number of REs capable of mapping an allocation control signal, a second number of REs capable of mapping signals other than the allocation control signal, and a reference value, which is the number of REs satisfying the reception quality request in a terminal (200) for the allocation control signal, in each PRB pair. Then, a control signal mapping control unit (104) determines a search space by determining a control channel element group constituting a plurality of mapping unit resource region candidates within a CCE group obtained by separating each PRB pair contained in a first group into the same number as the division number.
Abstract translation: 在基站（100）中，分割数计算单元（103）根据能够映射分配控制信号的第一数量的RE，能够映射信号的第二数量的RE来计算PRB对的分割数 以及作为分配控制信号的终端（200）中满足接收质量请求的RE的个数的参考值，在每个PRB对中。 然后，控制信号映射控制单元（104）通过确定构成通过将包含在第一组中的每个PRB对分成相同数量而获得的CCE组内的多个映射单元资源区域候选的控制信道单元组来确定搜索空间 作为分区号。
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