公开(公告)号：US20240291594A1

公开(公告)日：2024-08-29

申请号：US18571466

申请日：2021-06-18

Applicant: NEC CORPORATION

Inventor： Xiaohong ZHANG ,  Yukai GAO ,  Gang WANG

IPC: H04L1/1607 ,  H04W72/04 ,  H04W72/21

CPC classification number: H04L1/1671 ,  H04W72/04 ,  H04W72/21

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device receives, from a network device, an indication on whether one of a first mode and a second mode of PUCCH carrier switching is enabled, the first mode being based on a dynamic configuration in DCI, the second mode being based on an RRC configuration; and in accordance with a determination that the one of the first mode and the second mode is enabled, perform the PUCCH carrier switching for a PUCCH transmission to be processed. In this way, PUCCH carrier switching may be flexibly configured.

公开(公告)号：US20240283616A1

公开(公告)日：2024-08-22

申请号：US18570714

申请日：2021-06-17

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04L5/00 ,  H04W72/21 ,  H04W72/232

CPC classification number: H04L5/0055 ,  H04W72/21 ,  H04W72/232

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A terminal device receives a first physical downlink control channel (PDCCH) which indicates a first Transmission Configuration Indication (TCI) state and receives a second PDCCH which indicates a second TCI state from a network device. If the reception of the second PDCCH is later than the reception of the first PDCCH, the terminal device performs a communication with the network device with the second TCI. In this way, it avoids ambiguity between two TCI states. Further, it also avoids unnecessary beam switching.

公开(公告)号：US20240267904A1

公开(公告)日：2024-08-08

申请号：US18641185

申请日：2024-04-19

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04W72/044 ,  H04J13/00 ,  H04L5/00

CPC classification number: H04W72/0466 ,  H04J13/0062 ,  H04L5/0048

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method comprises determining, at a first device, a first parameter for determination of a sequence group index based on at least one of the following: a second parameter indicating an identity associated with a physical channel between the first device and a second device, a third parameter indicating a scrambling identity, and a fourth parameter indicating a cell identity; determining the sequence group index based on the first parameter; generating, at least based on the sequence group index, a Demodulation Reference Signal (DMRS) sequence to be transmitted to the second device; and transmitting the generated DMRS sequence to the second device over the physical channel. Embodiments of the present disclosure can enable DMRS transmission with low Peak to Average Power Ratio (PAPR) and high flexibility.

公开(公告)号：US20240259078A1

公开(公告)日：2024-08-01

申请号：US17277167

申请日：2018-09-18

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/232

CPC classification number: H04B7/06968 ,  H04L5/0048 ,  H04W72/232

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for multi-TRP transmission. The method comprises determining at least one transmission configuration indication (TCI) state to be configured to a terminal device, the at least one TCI state indicating a plurality of reference signal (RS) sets and quasi co-location relationship between the plurality of RS sets and respective groups of DMRS ports. The method further comprises determining DMRS ports for transmitting DMRSs to the terminal device via the plurality of TRPs and associations between the plurality of RS sets and the DMRS ports. In addition, the method further comprises configuring the at least one TCI state, the DMRS ports, and the associations between the plurality of RS sets and the DMRS ports to the terminal device. In this way, multi-TRP transmission can be supported without introducing additional indication overhead.

公开(公告)号：US20240215019A1

公开(公告)日：2024-06-27

申请号：US18288737

申请日：2021-04-29

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Peng GUAN ,  Gang WANG

IPC: H04W72/1268 ,  H04L5/00 ,  H04W52/14 ,  H04W72/232

CPC classification number: H04W72/1268 ,  H04L5/0048 ,  H04W52/146 ,  H04W72/232

Abstract: Embodiments of the present disclosure relate to a method, device and computer readable storage medium of communication. The method comprises receiving at a terminal device a DCI for scheduling at least one PUSCH transmission from a network device. The DCI comprises a first field indicating that the at least one PUSCH transmission is to be transmitted based on a SRS resource set from a plurality of SRS resource sets or the plurality of SRS resource sets, and a second field indicating an index of the single SRS resource set for transmitting the at least one PUSCH transmission. The method further comprises transmitting, by the terminal device, the at least one PUSCH transmission based on the DCI to the network device. In this way, when supporting dynamic switching between single-TRP transmission and multi-TRP transmission, the newly-introduced overhead may be minimized.

公开(公告)号：US20240098531A1

公开(公告)日：2024-03-21

申请号：US18266113

申请日：2020-12-10

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/005 ,  H04L5/0053

Abstract: Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. A method comprises receiving, at a terminal device, at least one configuration about a first control resource set (CORESET) and a second CORESET, wherein the at least one configuration indicates that the first CORESET is associated with a first set of reference signals (RSs) for beam failure detection (BFD), and the second CORESET is associated with the first set of RSs or a second set of RSs for BFD; and monitoring at least one PDCCH candidate based on detection of a beam failure with assessing radio link quality over at least one of the first set of RSs and the second set of RSs. As such, some meaningless blind detection for PDCCH can be avoided, so as to increase the efficiency of PDCCH detection.

公开(公告)号：US20240031067A1

公开(公告)日：2024-01-25

申请号：US17788153

申请日：2019-12-23

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04L1/1607 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04L1/1671 ,  H04L5/0044 ,  H04W56/0045 ,  H04L5/0053

Abstract: Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. A method comprises transmitting, from a first device to a second device, a plurality of repetitions for a physical channel for scheduling a communication between the first device and the second device, wherein the plurality of PDCCH repetitions indicate same offset information for the communication; determining, based on the same offset information and index information about a repetition of the plurality of repetitions, a time offset between the repetition and the communication; and performing, based on the time offset, the communication with the second device. Embodiments of the present disclosure enable both the network device and the terminal device to obtain, from the physical channel repetitions, the real time offset for a corresponding communication and improve reliability and robustness for the physical channel.

公开(公告)号：US20230388058A1

公开(公告)日：2023-11-30

申请号：US18029156

申请日：2020-09-30

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04L1/1812 ,  H04L1/1829 ,  H04W72/23 ,  H04L5/00

CPC classification number: H04L1/1812 ,  H04L1/1861 ,  H04W72/23 ,  H04L5/0055

Abstract: Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. A method comprises transmitting, from a network device to a terminal device, downlink control information (DCI) over a first set of Physical Downlink Control Channel (PDCCH) candidates for scheduling a Physical Downlink Shared Channel (PDSCH), where the DCI includes at least one of a counter downlink assignment indicator (DAI) value and a total DAI value; transmitting the PDSCH from the network device to the terminal device; and receiving a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook for the PDSCH from the terminal device, where the HARQ-ACK codebook is generated at least based on a first configuration of a second set of PDCCH candidates, and at least one of the counter DAI value and the total DAI value. As such, the dynamic HARQ-ACK codebook can be obtained without introducing additional signaling overhead.

公开(公告)号：US20230208606A1

公开(公告)日：2023-06-29

申请号：US18119583

申请日：2023-03-09

Applicant: NEC Corporation

Inventor： Yukai GAO ,  Gang Wang

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/044 ,  H04W72/1263

CPC classification number: H04L5/10 ,  H04L5/0051 ,  H04L5/0094 ,  H04W72/0466 ,  H04W72/1263

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for Demodulation Reference Signal (DMRS) configuration. In example embodiments, a method implemented in a network device is provided. According to the method, a first configuration for DMRS transmission between the network device and a terminal device is determined. The first configuration includes first information related to the DMRS transmission and is associated with a second configuration related to transmission scheduling. Both the first information and the second configuration are indicated to the terminal device by transmitting second information on the first configuration to the terminal device.

公开(公告)号：US20230179358A1

公开(公告)日：2023-06-08

申请号：US17998110

申请日：2020-05-08

Applicant: NEC CORPORATION

Inventor： Yukai GAO ,  Gang WANG

IPC: H04L5/00

CPC classification number: H04L5/0048

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication of a RS. A method of communication comprises determining, at a network device, first information about a first resource for communication of a reference signal and second information about a modification of the first resource; and transmitting the first and second information to a terminal device for determination of a second resource for performance of the communication of the reference signal. The method further comprises receiving, at the terminal device, the first and second information; determining a second resource based on the first and second information; and performing the communication of the reference signal based on the second resource. Embodiments of the present disclosure can achieve a dynamic configuration for a RS resource, and enhance flexibility of the RS resource configuration. In addition, the related overhead can be saved.