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公开(公告)号：US20230015998A1
公开(公告)日：2023-01-19
申请号：US17783697
申请日：2019-12-09
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. A method comprises determining, at a network device, a variable for transform pre-coding to be performed by the network device or a terminal device served by the network device; and transmitting, to the terminal device, information about the variable for the transform pre-coding. Embodiments of the present disclosure can achieve high resource efficiency and low PAPR at the same time in downlink transmissions.
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公开(公告)号：US20220394678A1
公开(公告)日：2022-12-08
申请号：US17765276
申请日：2019-09-30
Applicant: NEC CORPORATION
Inventor： Shichang ZHANG , Gang WANG
Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for resource selection in V2X. The method comprises selecting, at a first terminal device, resources in at least one resource selection window for transmissions of data from the first terminal device to a second terminal device. The method also comprises determining a first number N of continuous resources in a set of the selected resources that have time-domain offsets with respect to a reference resource below a threshold offset T. The method also comprises transmitting sidelink control information to the second terminal device. The sidelink control information indicates the N continuous resources in the set of the selected resources located in the at least one resource selection window. The selected resources comprise a plurality of frequency resources in a single slot.
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公开(公告)号：US20220377747A1
公开(公告)日：2022-11-24
申请号：US17763477
申请日：2019-09-25
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for channel quality measurement. In example embodiments, a method implemented in a network device includes determining first configuration information comprising a first slot offset value associated with a first resource set for channel measurements and a second slot offset value associated with a second resource set for interference measurements; and transmitting the first configuration information to a terminal device. A method implemented in a terminal device includes receiving the first configuration information; and in response to receiving, from the network device, first control information indicating that the first configuration information is used, performing the channel measurements and the interference measurements based on the first and second slot offset values. In this way, more flexible interference measurement based beam reporting is enabled.
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公开(公告)号：US20220294590A1
公开(公告)日：2022-09-15
申请号：US17774391
申请日：2019-11-05
Applicant: NEC CORPORATION
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to a method, device and computer readable mediun for communication. A method comprises in response to a physical resource block (PRB) being configured for communicating at least one Phase Tracking Reference Signal (PTRS) between a first device and a second device, determining, at the first device and from a plurality of resource elements (REs) comprised by the PRB, a first RE and a second RE for mapping at least one PTRS port; mapping the at least one PTRS port to at least one of the first and second REs; and communicating the at least one PTRS between the first device and the second device by using the at least one PTRS port. Embodiments of the present disclosure provide details on how to use two REs within one
PRB for PTRS communication to improve phase noise estimation performance, especially in case of scheme 2a/2b.-
公开(公告)号：US20220239448A1
公开(公告)日：2022-07-28
申请号：US17614149
申请日：2019-05-29
Applicant: NEC CORPORATION
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises receiving, at a first device, control information from a second device; determining a transmission control indication (TCI) codepoint from the control information, the TCI codepoint indicating at least a first TCI state and a second TCI state to be used for communicating data with the second device over a physical shared channel; in response to a number of repetitions of the data being configured to be scheduled by the control information, determining a first configuration for communicating the repetitions of the data with the second device, the first configuration assigning the first and second TCI states to the repetitions of the data; and communicating, at least based on the first configuration, the repetitions of the data with the second device over the physical shared channel.
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Patent Agency Ranking
公开(公告)号：US20220038223A1
公开(公告)日：2022-02-03
申请号：US17483130
申请日：2021-09-23
Applicant: NEC CORPORATION
Inventor： Lei JIANG , Hongmei LIU , Gang WANG , Zhennian SUN , Chuangxin JIANG
Abstract: Embodiments of the disclosure provide a method and apparatus for performing fractional subframe transmission. The method may comprise: in response to detecting that a channel becomes available, determining a target position from at least one potential position predefined in a subframe; and performing the fractional subframe transmission from the target position.
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公开(公告)号：US20220014332A1
公开(公告)日：2022-01-13
申请号：US17296026
申请日：2018-12-14
Applicant: NEC CORPORATION
Inventor： Gang WANG
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for resource selection. The method comprises generating a sequence of a reference signal for Physical Sidelink Shared Channel, PSSCH based on a scrambling identity derived from a Physical Sidelink Control Channel, PSCCH; determining a time-domain resource based on the frequency-domain resource and partially based on an overlap relationship between a first set of resources allocated for the PSCCH and a second set of resources allocated for the PSSCH; and mapping the sequence to the time-domain resource and the frequency-domain resource for transmitting the reference signal. In this way, the reference signal could be transmitted via PSSCH efficiently in a case that the resources allocated for PSCCH is overlapped with the resources allocated for PSSCH.
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公开(公告)号：US20210288856A1
公开(公告)日：2021-09-16
申请号：US16346890
申请日：2016-11-03
Applicant: NEC CORPORATION
Inventor： Hongmei LIU , Yukai GAO , Gang WANG
Abstract: Embodiments of the disclosure provide a method and device for indicating numerology. The method comprises: determining numerology information of a carrier, the numerology information indicating numerologies of one or more basic units for the carrier; and transmitting the numerology information to a terminal device to enable reception based on the numerology information.
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公开(公告)号：US20210258060A1
公开(公告)日：2021-08-19
申请号：US17252117
申请日：2018-06-15
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and apparatuses of channel state information (CSI) reporting for multiple reception point (TRP) transmission. In an embodiment of the present disclosure, a method may include transmitting a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition. The method may further include transmitting a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource set. With embodiments of the present disclosure, it is possible to support CSI reporting for multiple TRP transmission.
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公开(公告)号：US20210194737A1
公开(公告)日：2021-06-24
申请号：US17055389
申请日：2018-05-14
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for sounding reference signal (SRS) transmission. In example embodiments, a method implemented at a terminal device is provided. According to the method, in response to at least one set of SRS resources being configured for transmitting a SRS to a network device and antenna switching being enabled for the terminal device, the terminal device determines at least one guard period required for transmitting the SRS. Uplink transmission to the network device is expected to be scheduled outside the at least one guard period. In response to the uplink transmission being scheduled outside the at least one guard period, the terminal device transmits the SRS to the network device over the at least one set of SRS resources. In response to the uplink transmission being scheduled within the at least one guard period, the terminal device disables at least a part of the at least one set of SRS resources for transmitting the SRS.
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