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公开(公告)号：US12256362B2
公开(公告)日：2025-03-18
申请号：US17788969
申请日：2019-12-26
Applicant: NEC CORPORATION
IPC: H04W68/00
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communication. A method of communication comprises determining, at a terminal device, whether first paging occasion information of a first paging overlaps with second paging occasion information of a second paging; and in response to the first paging occasion information overlapping with the second paging occasion information, transmitting an indication of paging collision between the first paging and the second paging to a network device associated with the first paging. In this way, the solving of the paging collision issue can be facilitated at RAN side, and low latency and high efficiency can be achieved.
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公开(公告)号：US12144036B2
公开(公告)日：2024-11-12
申请号：US17626371
申请日：2019-07-12
Applicant: NEC CORPORATION
IPC: H04L27/26 , H04W72/12 , H04W72/1263 , H04W74/08 , H04W74/0833
Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for physical random access channel sequence generation. In example embodiments, a method includes determining an index of a cyclic shift for a root sequence. The method further includes determining a value of the cyclic shift based on a mapping between indices and cyclic shift values. The method further includes generating a random access preamble based on the root sequence and the value of the cyclic shift.
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公开(公告)号：US11632761B2
公开(公告)日：2023-04-18
申请号：US16967340
申请日：2018-02-05
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods, devices and apparatus of resource mapping for data transmission and of data receiving. In an embodiment of the present disclosure, a carrier frequency band for the data transmission is divided into a plurality of sub-bandwidths, and the method may include mapping resource elements for the data transmission in an order of sub-bandwidths and mapping, in each of the plurality sub-bandwidths, the resource elements first in an order of frequency domain and then in an order of time domain. With embodiments of the present disclosure, new radio access system with wider bandwidth could co-exist well with other communication on unlicensed band like WiFi.
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公开(公告)号：US12262377B2
公开(公告)日：2025-03-25
申请号：US17619532
申请日：2019-06-17
Applicant: NEC CORPORATION
IPC: H04W72/1273 , H04L1/08 , H04L1/1812 , H04L5/00 , H04W72/20
Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for hybrid automatic repeat request (HARQ) feedback. The method comprises receiving, from a network device, first control information at least comprising first channel indices for a first group of data channels and second channel indices for a second group of data channels, the first group of the data channels being at least part of a first set of data channels scheduled for data transmission from the network device to the terminal device and the second group of the data channels being at least part of a second set of data channels scheduled for the data transmission. The method also comprises generating, based on the first control information, feedback information indicating first reception states of data on the first group of data channels in association with the first channel indices and second reception states of data on the second group of data channels in association with the second channel indices. The method further comprises transmitting the feedback information via an uplink channel to the network device. In this way, for the case that the HARQ ACK/NACK feedback related to multiple PDSCH groups in a same PUCCH, the miss detection of DCI in multiple PDSCH groups may reflect in the bit sequence for the HARQ ACK/NACK feedback, so that the network device may be aware of the miss detection and determine the data to be retransmitted.
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公开(公告)号：US11997046B2
公开(公告)日：2024-05-28
申请号：US17555674
申请日：2021-12-20
Applicant: NEC Corporation
IPC: H04L5/00 , H04L1/1867 , H04W16/14 , H04W28/04
CPC classification number: H04L5/0055 , H04L1/1887 , H04L5/0007 , H04W16/14 , H04W28/04
Abstract: Embodiments of the disclosure generally relate to feedback of a HARQ acknowledgement. A network device transmits, to a terminal device, a first trigger indicating a feedback mode of a HARQ acknowledgement. The feedback mode is selected from at least one of: a trigger mode, a timing mode, and a mixed mode. In response to successful access to an unsilenced band allocated to the HARQ acknowledgement, the network device transmits, to the terminal device, a second trigger indicating at least one target terminal device that is to feedback the HARQ acknowledgement based on the feedback mode indicated by the first trigger.
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Patent Agency Ranking
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：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：US11239978B2
公开(公告)日：2022-02-01
申请号：US16960754
申请日：2018-01-09
Applicant: NEC CORPORATION
Abstract: Embodiments of the disclosure generally relate to feedback of a HARQ acknowledgement. A network device transmits, to a terminal device, a first trigger indicating a feedback mode of a HARQ acknowledgement. The feedback mode is selected from at least one of: a trigger mode, a timing mode, and a mixed mode. In response to successful access to an unsilenced band allocated to the HARQ acknowledgement, the network device transmits, to the terminal device, a second trigger indicating at least one target terminal device that is to feedback the HARQ acknowledgement based on the feedback mode indicated by the first trigger.
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公开(公告)号：US12238769B2
公开(公告)日：2025-02-25
申请号：US17596111
申请日：2019-06-06
Applicant: NEC CORPORATION
IPC: H04W4/00 , H04L1/1812 , H04L5/00 , H04W72/0446 , H04W72/0453 , H04W74/08 , H04W74/0816
Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium for contention window adjustment. In example embodiments, a method includes selecting, at least from first transmissions in a first time interval, a set of reference transmissions based on occupancy of a set of subbands by the first transmissions, clear channel assessment being performed on the set of subbands. The method further includes determining an unsuccessful reception ratio based on reception states of the set of reference transmissions. The method further includes determining, based on the unsuccessful reception ratio, an adjustment on a contention window for a second transmission in a second time interval after the first time interval.
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公开(公告)号：US12127227B2
公开(公告)日：2024-10-22
申请号：US18073846
申请日：2022-12-02
Applicant: NEC CORPORATION
IPC: H04W72/04 , H04W72/23 , H04W72/51 , H04W74/0808
CPC classification number: H04W72/51 , H04W72/23 , H04W74/0808
Abstract: Embodiments of the present disclosure relate to methods, devices and apparatus of resource mapping for data transmission and of data receiving. In an embodiment of the present disclosure, a carrier frequency band for the data transmission is divided into a plurality of sub-bandwidths, and the method may include mapping resource elements for the data transmission in an order of sub-bandwidths and mapping, in each of the plurality sub-bandwidths, the resource elements first in an order of frequency domain and then in an order of time domain. With embodiments of the present disclosure, new radio access system with wider bandwidth could co-exist well with other communication on unlicensed band like WiFi.
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