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公开(公告)号：US11616674B2
公开(公告)日：2023-03-28
申请号：US17206045
申请日：2021-03-18
发明人： Muhammad Nazmul Islam , Navid Abedini , Tao Luo , Sundar Subramanian , Juergen Cezanne , Ashwin Sampath , Alexei Yurievitch Gorokhov , Junyi Li , Bilal Sadiq
IPC分类号： H04L27/26 , H04B7/26 , H04L1/08 , H01Q3/26 , H04B7/06 , H04B7/216 , H04J1/06 , H04J11/00 , H04L5/00 , H04L25/02 , H04L1/00
摘要： The apparatus may be a base station. The apparatus processes a first group of synchronization signals. The apparatus processes a second group of synchronization signals. The apparatus performs a first transmission by transmitting the processed first group of the synchronization signals in a first synchronization subframe. The apparatus performs a second transmission by transmitting the processed second group of the synchronization signals in a second synchronization subframe.
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公开(公告)号：US10886975B2
公开(公告)日：2021-01-05
申请号：US16382585
申请日：2019-04-12
摘要： A method in a transmitter station for establishing a wireless link with a receiver station includes: sending beamforming training data to the receiver station; responsive to sending the beamforming training data, receiving from the receiver station: beamforming feedback data; and a beamforming feedback mode indicator selected from (i) a multi-subcarrier feedback mode, and (ii) a single carrier feedback mode; when the beamforming feedback mode indicator corresponds to the single carrier feedback mode, obtaining beamforming parameters based on the beamforming feedback data.
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公开(公告)号：US10819550B2
公开(公告)日：2020-10-27
申请号：US16272084
申请日：2019-02-11
发明人： Yongxia Lyu , Zhiheng Guo
摘要： A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.
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公开(公告)号：US10715210B1
公开(公告)日：2020-07-14
申请号：US16124878
申请日：2018-09-07
发明人： Chih-Hao Liu , Srinivas Yerramalli , Tamer Kadous
IPC分类号： H04B1/713 , H04B1/7143 , H04J1/06 , H04B1/7136
摘要： There is a need for a mechanism that increases the UE's chance of properly receiving the NPSS and/or NSSS when frequency hopping is used for narrowband communications in the unlicensed frequency spectrum. The present disclosure provides a solution by transmitting the NPSS and NSSS using a synchronization signal repetition pattern in order to increase the detection probability for the DRS, so that synchronization and/or cell acquisition may be achieved with a reduced number of visits to the anchor channel, thereby reducing synchronization delay and increasing the QoS.
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5.发明申请公开(公告)号：US20200154396A1
公开(公告)日：2020-05-14
申请号：US16611081
申请日：2017-05-05
发明人： Yang LIU
摘要： A signal transmission method is provided. The method includes: determining a target device, and transmitting a 5G signal to the target device, where the 5G signal includes a synchronization block, and the synchronization block is used to carry a PBCH, a PSS, an SSS and a DMRS, and the DMRS and the SSS are used as references for a demodulation result of the PBCH. By further setting the DMRS in the synchronization block, both the SSS and the DMRS are used as the references for the demodulation result of the PBCH, thereby ensuring that an adjusted phase of the demodulation result is as same as possible to a phase of the synchronization block before modulation of a transmission device, which greatly eliminates influence of factors such as the Doppler effect on the phase of the synchronization block during a signal transmission process.
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公开(公告)号：US10476623B2
公开(公告)日：2019-11-12
申请号：US15943011
申请日：2018-04-02
发明人： Hung Ly , Haitong Sun
摘要： Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may identify a synchronization signal (SS) block index associated with a SS block; scramble a physical broadcast channel (PBCH), associated with the SS block, based at least in part on the SS block index; and transmit the SS block including a tertiary synchronization signal (TSS) and the PBCH, wherein the TSS includes information that identifies the SS block index associated with the SS block, and wherein the TSS is frequency division multiplexed with the PBCH in two or more orthogonal frequency-division multiplexed (OFDM) symbols of the SS block. Numerous other aspects are provided.
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公开(公告)号：US20190306845A1
公开(公告)日：2019-10-03
申请号：US16444434
申请日：2019-06-18
摘要： A wireless communication method, a network device and a terminal device are provided. The method comprises: transmitting a first control channel in a first period of time, wherein the first control channel carries scheduling information of a first data channel; receiving or transmitting the first data channel in a second period of time according to the scheduling information of the first data channel; transmitting a second control channel in a frequency division multiplexing manner with the first data channel at part time of the second period of time, wherein a data channel scheduled by the second control channel does not include the first data channel, and a starting position of the part time is not earlier than an ending position of the first period of time.
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公开(公告)号：US10305719B2
公开(公告)日：2019-05-28
申请号：US15543586
申请日：2016-01-20
申请人： NTT DOCOMO, INC.
发明人： Hiroki Harada , Kazuki Takeda , Satoshi Nagata
IPC分类号： H04B7/00 , H04L29/06 , H04J1/00 , H04J11/00 , H04W16/14 , H04W72/08 , H04J1/06 , H04L27/00 , H04W74/08
摘要： The present invention is designed to improve spectral efficiency in a system that runs LTE/LTE-A by using a carrier in which LBT (Listen Before Talk) is configured. One aspect of the present invention provides a radio base station in a radio communication system where the radio base station and a user terminal communicate by using a carrier in which LBT is configured, and this radio base station has a measurement section that executes LBT in a predetermined carrier sensing duration and acquires an LBT result, and a transmission section that transmits a downlink signal based on the LBT result, and the predetermined carrier sensing duration includes a first carrier sensing duration and a second carrier sensing duration, which is shorter than the first carrier sensing duration.
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公开(公告)号：US10014968B2
公开(公告)日：2018-07-03
申请号：US15325324
申请日：2015-07-14
申请人： NTT DOCOMO, INC.
CPC分类号： H04J1/06 , H04L5/00 , H04W16/28 , H04W52/143 , H04W52/243 , H04W52/40 , H04W76/27 , H04W84/18
摘要： A base station allocates downlink transmission powers to user equipments according to the reception qualities of the user equipments. The base station transmits a mixed data signal in which multiple data signals that are addressed to multiple user equipments and are not orthogonal to each other are mixed, and transmits multiple control signals to the multiple user equipments such that each user equipment can decode the data signal addressed to that user equipment using the control signal corresponding to that user equipment. Each control signal is scrambled using the identifier of the user equipment corresponding to that control signal. With a period longer than the transmission period for the control signal, the base station notifies the multiple user equipments of identifier information indicating multiple identifiers, and thus the user equipment can descramble a control signal for another user equipment to which an interference data signal with a higher transmission power is addressed.
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公开(公告)号：US09654320B2
公开(公告)日：2017-05-16
申请号：US14663362
申请日：2015-03-19
申请人： THALES
发明人： Eric Garrido , David Lefranc , Thibault De Moegen
CPC分类号： H04L27/12 , H04J1/065 , H04L1/0041 , H04L1/0045 , H04L1/0057
摘要： A method of transmitting information between a plurality of radioelectric stations and an associated transmission network are disclosed. In one aspect, the method transmits information between radioelectric stations, each station including a transmitter and a receiver, the information including NbMot words of data, NbMot being an integer >1. The transmission method includes: determining at least one polynomial of degree NbMot−1, each of the NbMot coefficients of the polynomial corresponding to a respective word, the polynomial having an indeterminacy, calculating NbRepet polynomial values for the polynomial, NbRepet being an integer >1, each polynomial value being calculated for a respective predetermined value of the indeterminacy, transmitting the calculated polynomial values from one radioelectric station to at least one other radioelectric station, receiving polynomial values by the other radioelectric station, and determining, via the other radioelectric station, the NbMot words from a Lagrange interpolation of the received polynomial values.
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