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公开(公告)号：US12010054B2
公开(公告)日：2024-06-11
申请号：US17419988
申请日：2019-01-09
Applicant: NEC CORPORATION
CPC classification number: H04L5/0048 , H04L27/2614 , H04L27/3488
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for DMRS transmission. A method implemented at a terminal device comprises selecting, from a plurality of computer generated (CG) sequences, a CG sequence for an uplink channel modulated with a predetermined modulation technique. The method further comprises generating, based on the selected CG sequence, a DMRS sequence for the uplink channel. In addition, the method further comprises transmitting, over the uplink channel, the DMRS sequence to a network device. The embodiments of the present disclosure can provide a set of candidate CG sequences with low PAPR, good autocorrelation performance and good cross-correlation performance for generating DMRS sequences for π/2-BPSK modulated PUSCH or PUCCH.
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公开(公告)号：US11950268B2
公开(公告)日：2024-04-02
申请号：US18161675
申请日：2023-01-30
Applicant: NEC CORPORATION
Inventor： Zhaobang Miao , Gang Wang
IPC: H04W72/53 , H04W56/00 , H04W72/0446 , H04W72/0453 , H04W72/30
CPC classification number: H04W72/53 , H04W56/001 , H04W72/0446 , H04W72/0453 , H04W72/30
Abstract: Embodiments of the present disclosure relate to methods, devices and apparatus for resource allocation for a control resource region in a wireless communication system. In an embodiment of the present disclosure, a method may include determining resource units each containing a predetermined number of resource blocks based on available transmission resources. Resource blocks not contained in the resource units are distributed in the available transmission resources to divide resource blocks contained in the resource units into a plurality of resource segments. The method also comprise allocating one or more of the determined resource units to the control resource region and transmitting resource allocation information indicating the allocated one or more of resource units. With embodiments of the present disclosure, there is provided an effective solution for resource allocation for control resource region.
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公开(公告)号：US11916847B2
公开(公告)日：2024-02-27
申请号：US17366610
申请日：2021-07-02
Applicant: NEC CORPORATION
Inventor： Gang Wang , Jiangnan Zhang , Kaili Wang
CPC classification number: H04L5/0094 , H04L5/0039 , H04L5/0048 , H04L27/2613 , H04L5/0051
Abstract: Embodiments of the present disclosure relate to a solution for uplink signal receiving and transmission in a wireless communication system. Length indication information is transmitted to terminal devices. The length indication information indicates a length of reference signal sequences for uplink control information to be transmitted by different terminal devices in a short duration within the same transmission resource, which can be configured so that reference signals for the uplink control information of different terminal devices can be orthogonal with each other. The uplink control information and reference signals with the length of reference signal sequence as indicated by the length indication information can be received from the terminal devices. With embodiments of the present disclosure, a flexible, dynamic DMRS length indication solution is provided, which can address can address the orthogonality issue resulted from different sizes of UCI. In some embodiments, it can further address resource allocation issues related to UCI transmission in the short duration.
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公开(公告)号：US11909694B2
公开(公告)日：2024-02-20
申请号：US17726838
申请日：2022-04-22
Applicant: NEC CORPORATION
CPC classification number: H04L5/10 , H04L5/0051 , H04L27/2605 , H04W24/08 , H04W72/23
Abstract: Embodiments of the present disclosure relate to methods and devices for data transmission. In example embodiments, a method implemented in a network device is provided. According to the method, a target RS port group is determined from a plurality of RS ports for transmitting a RS. The RS ports are associated with at least one network device. Then, a configuration of the target RS port group is transmitted to the terminal device.
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公开(公告)号：US11871442B2
公开(公告)日：2024-01-09
申请号：US17275362
申请日：2018-09-14
Applicant: NEC CORPORATION
Inventor： Gang Wang
IPC: H04W4/00 , H04W72/563 , H04W4/029 , H04W4/40
CPC classification number: H04W72/563 , H04W4/029 , H04W4/40
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for resource selection. The method comprises: receiving, at a first terminal device, a message from a second terminal device, the message indicating information associated with vehicle-to-everything (V2X) communication during movement of the second terminal device; and determining, at least partially based on the message, a resource for the first terminal device to perform the V2X communication.
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Patent Agency Ranking
公开(公告)号：US11856540B2
公开(公告)日：2023-12-26
申请号：US17532005
申请日：2021-11-22
Applicant: NEC CORPORATION
IPC: H04W56/00 , H04L5/00 , H04L5/10 , H04W72/0446 , H04W72/30
CPC classification number: H04W56/001 , H04L5/0051 , H04L5/0094 , H04L5/10 , H04W72/0446 , H04W72/30
Abstract: Embodiments of the present disclosure relate to methods and an apparatuses for synchronization signal (SS) transmission. In example embodiments, a method implemented in a network device is provided. According to the method, information on a plurality of SS blocks to be transmitted by the network device is determined based on at least one of a frequency range and a value of subcarrier spacing. The information at least in part indicates timing for transmitting the plurality of SS blocks The plurality of SS blocks are transmitted to at least one terminal device based on the determined information.
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公开(公告)号：US11736951B2
公开(公告)日：2023-08-22
申请号：US17530107
申请日：2021-11-18
Applicant: NEC CORPORATION
Inventor： Gang Wang
IPC: H04W16/14 , H04L1/16 , H04L5/00 , H04W72/04 , H04L1/1607 , H04W72/0446 , H04W72/21
CPC classification number: H04W16/14 , H04L1/1642 , H04L5/0094 , H04W72/0446 , H04W72/21
Abstract: Embodiments of the present disclosure relate to a method, terminal device and apparatus for UL data transmission and a method, network device and apparatus for UL data scheduling. In an embodiment of the present disclosure, the method of DL data transmission may comprise receiving, from a network device, information on an ending position of uplink data transmission on the unlicensed band; and determining the ending position of uplink data transmission from the information on the starting position of uplink data transmission, wherein the determined ending position of uplink data transmission is associated with a carrier numerology used by the terminal device. With embodiments of the present disclosure, it could enable the UL data transmission on the unlicensed band in the NR system and thus improve the performance of the NR system.
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公开(公告)号：US20230261804A1
公开(公告)日：2023-08-17
申请号：US18140273
申请日：2023-04-27
Applicant: NEC Corporation
Inventor： Zhennian SUN , Gang Wang , Ming Lei
IPC: H04L1/1829 , H04W72/23 , H04L5/14
CPC classification number: H04L1/1854 , H04L5/14 , H04W72/23
Abstract: Methods and apparatuses for determining HARQ timing in a communication system supporting Carrier Aggregation (CA) are provided. A method for receiving, at a BS, a HARQ feedback from a UE in a communication system supporting CA of a Pcell and at least one Scell is provided. The Pcell and Scell support either FDD or TDD. The method comprises: transmitting a downlink physical channel through one of the Pcell and Scell; receiving the HARQ feedback corresponding to the downlink physical channel of the Pcell at a first timing predetermined for the Pcell; and receiving the HARQ feedback corresponding to the downlink physical channel of the Scell at a second timing. The second timing is determined according to one or more of duplex modes of the Pcell and the Scell, a scheduling mode of the Scell, and predefined rules.
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49.发明公开公开(公告)号：US20230188298A1
公开(公告)日：2023-06-15
申请号：US18105485
申请日：2023-02-03
Applicant: NEC Corporation
CPC classification number: H04L5/0053 , H04L5/0005 , H04W72/21
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：US20230137428A1
公开(公告)日：2023-05-04
申请号：US18087102
申请日：2022-12-22
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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