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公开(公告)号:US20230199889A1
公开(公告)日:2023-06-22
申请号:US18169666
申请日:2023-02-15
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and apparatuses of processing beam failure of a secondary cell at a terminal device and a network device respectively. In an embodiment of the present disclosure, the terminal device is serviced in a primary cell and a secondary cell on separate beams, and the secondary cell operates in a self-scheduling mode. The method may include transmitting, on an uplink control channel of the primary cell, a beam failure recovery request of the secondary cell, in response to detection of a beam failure in the secondary cell; and receiving a response to the beam failure recovery request of the secondary cell on a downlink control channel of the primary cell, wherein the response is configured to indicate a transmission configuration indication for a subsequent transmission. With embodiments of the present disclosure, a solution for supporting beam failure recovery request in the secondary cell without substantial latency or overhead issues, which makes an efficient beam failure recovery in the secondary cell possible.
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公开(公告)号:US12160288B2
公开(公告)日:2024-12-03
申请号:US18105626
申请日:2023-02-03
Applicant: NEC CORPORATION
IPC: H04W72/02 , H04B7/0417 , H04B7/06 , H04L5/00 , H04W72/044
Abstract: Embodiments of the present disclosure relate to methods and devices for channel state information (CSI) transmission. In example embodiments, a method implemented in a terminal device includes performing a channel estimate between the terminal device and a network device across a predetermined frequency range for a set of beams having different spatial directions; determining, based on the channel estimate, first indication information indicating at least one beam selected from the set of beams and second indication information indicating frequency-related information for the at least one selected beam at a plurality of frequency locations in the predetermined frequency range; and transmitting to the network device the first indication information in a first part of a channel state information (CSI) report and the second indication information in a second part of the CSI report.
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公开(公告)号:US11595087B2
公开(公告)日:2023-02-28
申请号:US17254630
申请日:2018-06-22
Applicant: NEC CORPORATION
IPC: H04W72/02 , H04B7/0417 , H04L5/00 , H04W72/044
Abstract: Embodiments of the present disclosure relate to methods and devices for channel state information (CSI) transmission. In example embodiments, a method implemented in a terminal device includes performing a channel estimate between the terminal device and a network device across a predetermined frequency range for a set of beams having different spatial directions; determining, based on the channel estimate, first indication information indicating at least one beam selected from the set of beams and second indication information indicating frequency-related information for the at least one selected beam at a plurality of frequency locations in the predetermined frequency range; and transmitting to the network device the first indication information in a first part of a channel state information (CSI) report and the second indication information in a second part of the CSI report.
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4.
公开(公告)号:US12160387B2
公开(公告)日:2024-12-03
申请号:US18105485
申请日:2023-02-03
Applicant: NEC Corporation
Abstract: Embodiments of the present disclosure relate to methods, devices, and computer readable medium for uplink signal transmitting and receiving. A method comprises: receiving a first downlink signal from a first transmission/reception point (TRP); receiving a second downlink signal from a second TRP; and transmitting an uplink control signal to at least one of the first and second TRPs, the uplink control signal comprising first control information associated with the first downlink signal and second control information associated with the second downlink signal, and the first control information and the second control information being included in the uplink control signal in an order determined by an identification related to reference signals associated with the first downlink signal and the second downlink signal. Embodiments of the present disclosure may avoid ambiguity in uplink control information bit ordering in uplink control signal transmission and reception.
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公开(公告)号:US11303344B2
公开(公告)日:2022-04-12
申请号:US16763678
申请日:2017-11-13
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to a method, terminal device and apparatus for beam report transmission and a method, network node and apparatus for a beam report receiving. In an embodiment of the present disclosure, the method for beam report transmission may include dropping, in response to a collision between a beam report and another uplink control information, a lower-priority one of the beam report and the other uplink control information based on a predetermined priority rule defining a transmission priority of the beam report and the other uplink control information. With embodiments of the present disclosure, it is possible to provide a simple but efficient solution for addressing the collision.
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公开(公告)号:US12213109B2
公开(公告)日:2025-01-28
申请号:US17426210
申请日:2019-01-31
Applicant: NEC CORPORATION
IPC: H04W72/0446 , H04L1/08 , H04W72/23
Abstract: Embodiments of the present disclosure provide methods, devices and computer readable media for multi-TRP communication. In a method for communication, a terminal device receives control information from at least one of a first network device and a second network device. The terminal device determines, from the control information, a first parameter for communication of a first data between the first network device and the terminal device and a second parameter for communication of a second data between the second network device and the terminal device, and the first data and the second data are identical. The terminal device performs, based on the first and second parameters, the communication of the first data with the first network device and the communication of the second data with the second network device. The embodiments of the present disclosure propose a new design of control information for multi-TRP communication.
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公开(公告)号:US12120708B2
公开(公告)日:2024-10-15
申请号:US17276923
申请日:2018-09-19
Applicant: NEC CORPORATION
IPC: H04W72/27 , H04W72/0446
CPC classification number: H04W72/27 , H04W72/0446
Abstract: Embodiments of the present disclosure relate to a method, device and computer readable medium for slot format configuration. In an embodiment of the present disclosure, a method for slot format configuration is performed at a network device. In the method, link configuration information is transmitted, wherein the link configuration indicates configuration for access and backhaul links for a time period; and slot format configuration information is transmitted, wherein the slot format configuration information indicates one or more slot formats for at least one of the access and backlinks to be used in the configuration for access and backhaul links for the time period.
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公开(公告)号:US12279249B2
公开(公告)日:2025-04-15
申请号:US17627274
申请日:2019-07-18
Applicant: NEC CORPORATION
IPC: H04W4/00 , H04W24/08 , H04W72/02 , H04W72/044 , H04W72/1263 , H04W72/20
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for multi-TRP communication. A method comprises determining a first beam for a first physical shared channel which is scheduled by control information; determining a second beam for a second physical shared channel which is scheduled by the control information, the second beam being different from the first beam; and performing communication over the first physical shared channel via the first beam and over the second physical shared channel via the second beam.
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公开(公告)号:US12057944B2
公开(公告)日:2024-08-06
申请号:US17291226
申请日:2018-11-08
Applicant: NEC CORPORATION
IPC: H04L1/1829 , H04L1/1812 , H04L1/1867 , H04W72/23
CPC classification number: H04L1/1854 , H04L1/1812 , H04L1/1858 , H04L1/1861 , H04W72/23
Abstract: Embodiments of the present disclosure relate to methods, devices, and computer readable medium for hybrid automatic repeat request (HARQ). A method in a terminal device comprises: receiving a scheduling message from a network device, the scheduling message including information on HARQ feedback, wherein the information on HARQ feedback indicates at least one of: a processing identification for HARQ feedback and the accumulated number of scheduling messages that have been transmitted for the terminal device or the processing identification; detecting data from the network device according to the scheduling message; and transmitting HARQ feedback to the network device based on the information on HARQ feedback.
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10.
公开(公告)号:US11909526B2
公开(公告)日:2024-02-20
申请号:US17596703
申请日:2019-06-17
Applicant: NEC CORPORATION
CPC classification number: H04L1/08 , H04L5/0023 , H04L5/0044
Abstract: Embodiments of the present disclosure provide a solution for multi-TRP transmissions. In a method for communication, a terminal device receives from a network device coupled with a plurality of TRPs, control information associated with a transmission of data from the network device to the terminal device. The terminal device determines, from the control information, a repetition scheme to be used by the network device to transmit the data to the terminal device via the plurality of TRPs. The terminal device receives the data from the network device based on the repetition scheme. With the embodiments of the present disclosure, only one DCI can schedule repeated data for multi-TRP transmission without increasing the DCI payload relative to a Rel.15 DCI. Also, the repetition scheme for transmitting data can be indicated by a same DCI more dynamically.
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