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公开(公告)号:US20210014034A1
公开(公告)日:2021-01-14
申请号:US17033163
申请日:2020-09-25
Inventor: Ayako HORIUCHI , Lilei WANG , Alexander GOLITSCHEK EDLER VON ELBWART , Hidetoshi SUZUKI , Kazuki TAKEDA
Abstract: A communication apparatus includes a circuitry and a transmitter. In operation, the circuitry generates a Demodulation Reference Signal (DMRS) and generates downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the transmitter transmits the DMRS and the downlink control information. The plurality of mapping patterns includes a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.
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公开(公告)号:US20250024440A1
公开(公告)日:2025-01-16
申请号:US18903747
申请日:2024-10-01
Inventor: Lilei WANG , Hidetoshi SUZUKI
IPC: H04W72/0446 , H04L5/00 , H04L27/26 , H04W72/20
Abstract: Provided are a user equipment, a base station and wireless communication methods related to physical resource configuration for sidelink communication in NR. A user equipment comprises: circuitry which, in operation, determines a Transmission Time Interval (TTI) assigned for transmitting and/or receiving a physical sidelink channel in a carrier; and a transceiver which, in operation, transmits and/or receives the physical sidelink channel based on the TTI in the carrier, wherein the duration of the TTI is less than a slot duration.
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公开(公告)号:US20240406994A1
公开(公告)日:2024-12-05
申请号:US18798683
申请日:2024-08-08
Inventor: Sujuan FENG , Joachim LOEHR , Prateek Basu Mallick , Lilei WANG
IPC: H04W72/563 , H04W4/44 , H04W72/02 , H04W74/00 , H04W74/02 , H04W74/0816
Abstract: The invention relates to a transmitting device, which performs a resource sensing procedure to acquire information about radio resources usable for transmitting data at a later point in time. After data becomes available for transmission, the transmitting device performs an autonomous radio resource allocation to select radio resources within a transmission window to be used for transmitting the data, based on the information acquired by the resource sensing procedure during a sensing window. The autonomous radio resource allocation comprises selecting radio resources in primary subframes of the transmission window preferably over radio resources in secondary subframes of the transmission window. The secondary subframes correspond to those subframes in the sensing window during which the transmitting device did not perform the resource sensing procedure, and the primary subframes correspond to those subframes in the sensing window during which the transmitting device did perform the resource sensing procedure.
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公开(公告)号:US20240276540A1
公开(公告)日:2024-08-15
申请号:US18642572
申请日:2024-04-22
Inventor: Tetsuya YAMAMOTO , Hidetoshi SUZUKI , Lilei WANG
IPC: H04W74/00 , H04L5/00 , H04W72/0453 , H04W74/0833
CPC classification number: H04W74/006 , H04L5/0055 , H04W72/0453 , H04W74/0833
Abstract: In a base station (100), a controller (101) determines one set from among a plurality of sets, each of which including one or more candidates for a resource for an uplink (UL) control channel during initial access, and determines one candidate from among the one or more candidates for the resource, which is included in the determined set. A transmitter (114) indicates the determined set to a terminal (200) by higher layer signaling, and indicates the determined candidate by dynamic signaling. A receiver (116) receives a UL control signal, using the resource corresponding to the determined candidate in the determined set. In the base station, the association between a value to be indicated by the higher layer signaling and the plurality of sets is configured for each of one or more parameters relating to the initial access.
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35.
公开(公告)号:US20240188080A1
公开(公告)日:2024-06-06
申请号:US18439447
申请日:2024-02-12
Inventor: Ankit BHAMRI , Hidetoshi SUZUKI , Lilei WANG
IPC: H04W72/1273 , H04L5/00 , H04L27/26 , H04W72/0446 , H04W72/563 , H04W76/27
CPC classification number: H04W72/1273 , H04L5/005 , H04L27/2607 , H04W72/0446 , H04W72/563 , H04W76/27
Abstract: The present disclosure relates to a user device, a base station, a method for data transmission/reception by a user device, and a method for data reception/transmission by a base station. The user device comprises circuitry which, in operation, receives a parameter defining a rule for assigning to ports respective resources for carrying reference signals, generates, based on a mapping known to the user device and the base station, a set of layer-to-port mapping combinations, and receives, from the base station, control information indicating one of the set of layer-to-port mapping combinations which is to be applied for data transmission and/or reception.
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公开(公告)号:US20240129899A1
公开(公告)日:2024-04-18
申请号:US18535910
申请日:2023-12-11
Inventor: Lilei WANG , Hidetoshi SUZUKI
IPC: H04W72/02 , H04W72/0446 , H04W72/0453 , H04W72/56
CPC classification number: H04W72/02 , H04W72/0446 , H04W72/0453 , H04W72/56 , H04W92/18
Abstract: Provided are a user equipment, base station and wireless communication methods related to resource configuration for sidelink communication, sidelink discovery or any other sidelink operation in NR. A user equipment comprises: circuitry operative to determine a Bandwidth Part (BWP) assigned for sidelink transmission and reception in a carrier; and a transceiver operative to perform the sidelink transmission and reception on the determined BWP in the carrier, wherein dynamic BWP switching is not supported for the sidelink transmission and reception in the carrier.
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公开(公告)号:US20240114539A1
公开(公告)日:2024-04-04
申请号:US18529873
申请日:2023-12-05
CPC classification number: H04W72/535 , H04W28/04 , H04W56/005 , H04W72/23
Abstract: A base station is disclosed, which is capable of appropriately configuring the timings of data assignment, data transmission and reception, and feedback for a case where the DL and UL sTTI lengths are different from each other. In this base station (100), a transmission section (106) transmits a downlink signal using a first short transmission time interval (sTTI) shortened in length than a TTI and used for downlink; and a reception section (107) receives an uplink signal using a second sTTI shortened in length than the TTI and used for uplink. When the first sTTI is shorter in length than the second sTTI, the reception section (107) receives the uplink signal in the second sTTI positioned after a predetermined interval from the transmission timing of the downlink signal, the predetermined interval being configured based on the length of the first sTTI.
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公开(公告)号:US20230421236A1
公开(公告)日:2023-12-28
申请号:US18465131
申请日:2023-09-11
Inventor: Ayako HORIUCHI , Lilei WANG , Alexander GOLITSCHEK EDLER VON ELBWART , Hidetoshi SUZUKI , Kazuki TAKEDA
CPC classification number: H04B7/086 , H04B7/068 , H04B7/0684 , H04W52/325 , H04L1/0001 , H04L5/0033 , H04L5/0042 , H04L5/0051 , H04L5/0094 , H04L5/0035 , H04L25/0226 , H04L5/0073 , H04W72/23 , H04B7/0851 , H04L27/2646 , H04B7/0452
Abstract: A communication apparatus includes a circuitry and a transmitter. In operation, the circuitry generates a Demodulation Reference Signal (DMRS) and generates downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the transmitter transmits the DMRS and the downlink control information. The plurality of mapping patterns include a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.
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公开(公告)号:US20230345548A1
公开(公告)日:2023-10-26
申请号:US18344697
申请日:2023-06-29
Inventor: Quan KUANG , Hidetoshi SUZUKI , Ayako HORIUCHI , Lilei WANG , Alexander GOLITSCHEK EDLER VON ELBWART
CPC classification number: H04W74/0833 , H04L5/0053 , H04W8/22
Abstract: The present disclosure includes as one aspect a device comprising: a receiver capable of receiving control signal from a base station in a first set of control resources and in a second set of control resources, a transmitter capable of transmitting control signals and data, a circuitry which, when in operation, controls: the transmitter to transmit a random access message associated with the first set of control resources and to transmit communication device capability indication; the receiver to monitor control resources in the first set of control resources after transmitting the random access message and to receive within the first set of control resources configuration of the second set of control resources; the receiver to monitor control resources in the first set of control resources and/or in the second set of control resources after receiving the configuration of the second set of control resources.
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公开(公告)号:US20230319785A1
公开(公告)日:2023-10-05
申请号:US18331720
申请日:2023-06-08
Inventor: David GONZALEZ , Ankit BHAMRI , Hidetoshi SUZUKI , Lilei WANG
CPC classification number: H04W68/02 , H04W56/001 , H04W84/027 , H04W88/185 , H04W4/023
Abstract: The present invention relates to a user device, a base station, and data transmission and reception methods to be performed by a user device and a base station in a communications system. The user device comprises circuitry which, in operation, calculates the starting location of a paging region comprising resources in which user devices are paged, the paging region including paging information for paging said user device; and determines an offset with respect to the starting location of the paging region, the offset indicating the location of the paging information for paging said user device relative to the starting location of the paging region.
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