-
公开(公告)号：US20210203461A1
公开(公告)日：2021-07-01
申请号：US17186065
申请日：2021-02-26
Applicant: NEC CORPORATION
Abstract: Embodiments of the present disclosure relate to methods and apparatuses for Reference Signal (RS) transmission. In example embodiments, a method implemented in a network device is provided. According to the method, the network device determines at least one set of CSI-RS resources for transmitting Tracking Reference Signal (TRS) to a terminal device. The network device further determines a first offset between a first slot to transmit a first signal for enabling transmission of the TRS and a second slot to transmit the TRS in the at least one set of CSI-RS resources. The first offset is different from a second offset between a third slot to transmit a second signal for enabling transmission of CSI-RS and a fourth slot to transmit the CSI-RS. The network device transmits a configuration indicating the at least one set of CSI-RS resources and the first offset to the terminal device.
-
公开(公告)号：US20210203437A1
公开(公告)日：2021-07-01
申请号：US17201482
申请日：2021-03-15
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.
-
公开(公告)号：US10897386B2
公开(公告)日：2021-01-19
申请号：US16881917
申请日：2020-05-22
Applicant: NEC CORPORATION
Inventor： Yukai Gao , Chuangxin Jiang , Zhennian Sun , Gang Wang
Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting uplink (UL) information and a method and apparatus of receiving UL information. In one embodiment of the present disclosure, the method of transmitting
UL information comprises transmitting a reference signal using a first sequence; and transmitting UL control information using a second sequence; wherein a reference signal and the UL control information are staggered-multiplexed in frequency domain. With embodiments of the present disclosure, the uplink information can be transmitted in reduced uplink symbols so as to adapt for a proposed subframe structure with reduced uplink symbols and thus, the transmission latency can be reduced greatly.-
公开(公告)号：US10771206B2
公开(公告)日：2020-09-08
申请号：US16041313
申请日：2018-07-20
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.
-
公开(公告)号：US20200153583A1
公开(公告)日：2020-05-14
申请号：US16739886
申请日：2020-01-10
Applicant: NEC CORPORATION
Inventor： Chuangxin JIANG , Yukai Gao , Zhennian Sun , Gang Wang
IPC: H04L5/00 , H04W72/04 , H04B7/0413 , H04W76/27
Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting a reference signal and a method and apparatus of receiving a reference signal. In one embodiment of the present disclosure, the method of transmitting a reference comprises receiving a reference signal configuration indication, wherein reference signal resources are divided into at least two reference signal groups, and the reference signal configuration indication indicates a reference signal configuration including a reference signal group configuration; and transmitting the reference signal using a reference signal sequence in a reference signal group as indicated by the reference signal group configuration, wherein the reference signal sequence can be multiplexed with another layer or another user in different reference signal groups. With embodiments of the present disclosure, reference signals for different layers or users can be multiplexed in different reference signal groups and thus, more mu-users with unequal allocated bandwidths can be supported without significant channel estimation loss and Peak to Average Power Ratio (PAPR) loss.
-
Patent Agency Ranking
公开(公告)号：US20190140799A1
公开(公告)日：2019-05-09
申请号：US16235044
申请日：2018-12-28
Applicant: NEC CORPORATION
IPC: H04L5/00
Abstract: Embodiments of the present disclosure relate to methods and apparatuses for reference signal transmission and receiving in a wireless communication system A common reference signal sequence is generated based on a frequency range configuration at network side, the common reference signal sequence being shared by at least some of terminal devices respectively allocated with their own reference signal transmission configurations. The common reference signal sequence and sequence configuration information is transmitted to a terminal device, the sequence configuration information indicating a parameter by which a reference signal sequence transmitted for the terminal device can be obtained. With embodiments of the present disclosure, a reference signal sequence solution with a low complexity is proposed for the wireless communication system (especially for new radio access system) with dynamic bandwidth allocation and/or configurable reference signal pattern, wherein only one common reference signal sequence is generated and shared by at least some of terminal devices, irrespective of reference signal transmission configurations like bandwidth allocation and/or reference signal pattern configuration.
-
公开(公告)号：US09882681B2
公开(公告)日：2018-01-30
申请号：US14772296
申请日：2013-03-28
Applicant: NEC Corporation
Inventor： Zhennian Sun , Gang Wang , Ming Lei
CPC classification number: H04L1/1854 , H04L5/14 , H04W72/042
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 includes: 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, and predefined rules.
-
公开(公告)号：US12302254B2
公开(公告)日：2025-05-13
申请号：US16585288
申请日：2019-09-27
Applicant: NEC CORPORATION
Inventor： Gang Wang
IPC: H04W52/14 , H04W52/36 , H04W72/0446 , H04W76/15
Abstract: Embodiments of the present disclosure relate to a method, terminal device and apparatus for uplink power control, a method, network element and apparatus for uplink receiving, and a method, network element and apparatus for transmitting information on uplink transmission power. The terminal device is connected to both a first wireless communication system and a second wireless communication system. Uplink transmission power for respective power adjustment zones within a subframe in the first wireless communication system can be determined based on a type of transmission within corresponding parts of a related subframe in the second wireless communication system. With embodiments of the present disclosure, the uplink transmission power can be determined based on the type of transmission in the second wireless communication systems, transmission power can be used in an efficient way and thus power efficiency can be improved.
-
公开(公告)号：US12279249B2
公开(公告)日：2025-04-15
申请号：US17627274
申请日：2019-07-18
Applicant: NEC CORPORATION
IPC: H04W4/00 , H04W24/08 , H04W72/02 , H04W72/044 , H04W72/1263 , H04W72/20
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for multi-TRP communication. A method comprises determining a first beam for a first physical shared channel which is scheduled by control information; determining a second beam for a second physical shared channel which is scheduled by the control information, the second beam being different from the first beam; and performing communication over the first physical shared channel via the first beam and over the second physical shared channel via the second beam.
-
公开(公告)号：US20250106081A1
公开(公告)日：2025-03-27
申请号：US18976744
申请日：2024-12-11
Applicant: NEC Corporation
Abstract: Embodiments of the present disclosure relate to methods and apparatuses of synchronization signal transmission and receiving in a wireless communication system. The method of synchronization signal transmission in a wireless communication system may comprise transmitting a signal set containing one or more synchronization signals, wherein the one or more synchronization signals are transmitted in a predetermined signal transmission pattern within a signal transmission period, and wherein the predetermined signal transmission pattern indicates information on synchronization signal transmission. With embodiments of the present disclosure, it may indicate the information on synchronization signal transmission information by means of the signal transmission mode. Thus, especially for an initial access process, it can provide a common frame for both single beam based deployment and multi-beam based deployment.
-
-
-
-
-
-
-
-
-
Search Results
188
records
(took 0.022 seconds)
