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公开(公告)号:US20210258809A1
公开(公告)日:2021-08-19
申请号:US17251394
申请日:2018-06-19
Applicant: NEC CORPORATION
IPC: H04W24/08
Abstract: Embodiments of the present disclosure relate to a method, device and apparatus for Channel State Information (CSI) measurement and a method, device and apparatus for transmitting a CSI reference signal. In an embodiment of the present disclosure, a CSI-RS resource configuration is received from a network device, the CSI-RS resource configuration indicating a CSI-RS resource set including a plurality of CSI-RS resources. CSI measurement is then performed using one of a plurality of CSI-RS resource combinations, wherein the plurality of CSI-RS resource combinations being determined from the CSI-RS resource set based on a predefined combination rule. With embodiments of the present disclosure, it is possible to support CSI measurement for a multiple TPR/multiple panel transmission.
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公开(公告)号:US20210184750A1
公开(公告)日:2021-06-17
申请号:US17253480
申请日:2018-06-22
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for beam management. In example embodiments, a method implemented at a first network device is provided. According to the method, a first group of resources are determined to be used by a terminal device for determining a first group of beams from the first network device. The first group of resources are different from a second group of resources configured by a second network device to the terminal device for determining a second group of beams from the second network device. The first group of resources are configured to the terminal device. A plurality of synchronization and/or reference signals are transmitted, using the first group of beams, on the first group of resources to the terminal device.
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公开(公告)号:US20210044402A1
公开(公告)日:2021-02-11
申请号:US16966792
申请日:2018-02-08
Applicant: NEC CORPORATION
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to methods and apparatuses for Phase Tracking Reference Signal (PTRS) configuration. In example embodiments, a method implemented in a network device is provided. According to the method, a set of candidate thresholds associated with at least one of time density, frequency density and group pattern of PTRS to be transmitted between the network device and a terminal device are determined. At least one subset of candidate thresholds are selected from among the set of candidate thresholds. At least one threshold to be used by the terminal device for determining the density of the PTRS is selected from among the at least one subset of candidate thresholds. The network device then transmits an indication of the at least one threshold to the terminal device.
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公开(公告)号:US20200220691A1
公开(公告)日:2020-07-09
申请号:US16648543
申请日:2017-09-19
Applicant: NEC CORPORATION
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to methods and apparatuses for transmitting control information. In example embodiments, a method implemented in a network device is provided. According to the method, a configuration for PDCCH transmission is determined at least based on a periodicity of a plurality of symbol-based control resource sets (CORESETs) within one slot. The configuration indicates an allocation of a first number of PDCCH candidates to the plurality of symbol-based CORESETs. The first number of PDCCH candidates is less than a second number of PDCCH candidates preconfigured for a slot-based CORESET. The configuration is transmitted to a terminal device served by the network device. Downlink control information (DCI) is transmitted based on the configuration to the terminal device in the plurality of symbol-based CORESETs.
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公开(公告)号:US20200162228A1
公开(公告)日:2020-05-21
申请号:US16633312
申请日:2017-07-24
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods and devices for reference signal (RS) transmission. In example embodiments, a method implemented in a network device is provided. According to the method, one or more RS patterns are determined for a plurality of RS ports. A RS pattern indicates a configuration of a RS to be transmitted to a terminal device via one or more RS ports. Afterwards, information of the RS patterns is transmitted to the terminal device.
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公开(公告)号:US20190288787A1
公开(公告)日:2019-09-19
申请号:US16318586
申请日:2016-07-19
Applicant: NEC CORPORATION
Inventor: Yukai GAO , Chuangxin JIANG , Gang WANG
Abstract: Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein each of the candidate transmission patterns contains a DL transmission part and/or a UL transmission part, and the candidate transmission patterns differ from one another in terms of time durations of the respective DL transmission parts and/or the UL transmission parts; and performing communication between a network device and a terminal device by using the target transmission pattern.
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公开(公告)号:US20190268120A1
公开(公告)日:2019-08-29
申请号:US16319004
申请日:2016-07-19
Applicant: NEC CORPORATION
Inventor: Yukai GAO , Chuangxin JIANG , Zhennian SUN , Lei JIANG , Hongmei LIU , Gang WANG
Abstract: Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein the target transmission pattern is indicated by a signal including one or more of: a reference signal, a signal for performing CRC, and a feedback signal; and performing communication between a network device and a terminal device by using the target transmission pattern.
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公开(公告)号:US20180352570A1
公开(公告)日:2018-12-06
申请号:US15758581
申请日:2016-02-02
Applicant: NEC CORPORATION
Inventor: Zhennian SUN , Chuangxin JIANG , Yukai GAO , Gang WANG
CPC classification number: H04W72/14 , H04L1/1812 , H04L1/1887 , H04W72/0446 , H04W72/1289
Abstract: Embodiments of the present disclosure provide a method at a base station for performing data transmission to a user equipment in a communications system supporting carrier aggregation of at least one first carrier on which a short TTI is applied and at least one second carrier on which a long TTI is applied. The method comprises transmitting at least one DL scheduling grant corresponding to data transmission to the user equipment in a DL control region of at least one of a short TTI on a first carrier and a long TTI on a second carrier and performing DL data transmission towards the user equipment in a data transmission region of a short TTI on the first carrier and in the data transmission region of a long TTI on the second carrier as indicated by the at least one DL scheduling grant. There are also provided a method for performing data transmission at a user equipment and a method for transmitting HARQ feedback at a base station or a user equipment.
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公开(公告)号:US20180167122A1
公开(公告)日:2018-06-14
申请号:US15318698
申请日:2015-05-12
Applicant: NEC CORPORATION
Inventor: Yukai GAO , Chuangxin JIANG , Gang WANG
CPC classification number: H04B7/0626 , H04B7/0413 , H04L5/0023 , H04L25/0228 , H04L27/2613 , H04W72/04
Abstract: Embodiments of the present disclosure provide a method for configuring transmission pattern in a wireless system. The method comprises indicating a number of antenna ports to be used for the transmission pattern; and configuring transmission resource for the number of antenna ports by indicating K resource configurations, with each resource configuration indicating resource for one of K subsets of antenna ports which form a set of the number of antenna ports. A method for signal detection according to the transmission pattern is also provided. Embodiments of the present disclosure also provide corresponding apparatus.
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公开(公告)号:US20250048369A1
公开(公告)日:2025-02-06
申请号:US18837446
申请日:2022-02-10
Applicant: NEC CORPORATION
IPC: H04W72/21 , H04W72/044 , H04W74/0833
Abstract: Embodiments of the present disclosure relate to a method, device and computer readable storage medium of communication. The method comprises determining, at a terminal device, an uplink resource for at least one uplink transmission. The method further comprises performing, the at least one uplink transmission based on one TCI state or more than one transmission configuration indicator (TCI) state based on at least one of the following: a number of TCI states associated with the uplink resource, or a number of uplink resource sets associated with the uplink resource, each uplink resource set corresponding to a TCI state. In this way, the multi-TRP based physical uplink control channel (PUCCH) transmission is enabled.
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