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21.发明授权公开(公告)号：US10659119B2
公开(公告)日：2020-05-19
申请号：US16475072
申请日：2017-08-25
Inventor： Hui Li , Qiubin Gao , Xin Su , Tamrakar Rakesh , Runhua Chen , Qiuping Huang , Chuanjun Li , Mengjun Wang
IPC: H04L27/26 , H04B7/0456 , H04L25/02
Abstract: The present invention relates to the field of wireless communications, and in particular, to a method for transmitting a reference signal, a method for determining a phase noise, and related apparatuses, to resolve the problem in the prior art that different phase noises of different antenna units or antenna ports of a transmitter cannot be accurately estimated and compensated for. The method comprises: the transmitter respectively transmitting each precoded DMRS and PTRS to a receiver via respective corresponding antenna groups having a same phase noise, and when the receiver receives the PTRS, performing channel estimation based on each received PTRS, to determine phase changes caused by phase noises corresponding to different antenna groups. In this way, even if different antennas of a transmitter have different phase noises, phase changes caused by the different phase noises can still be accurately determined, so that all data transmitted by the different antenna groups can be accurately demodulated according to different phase changes.
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22.发明申请公开(公告)号：US20180359015A1
公开(公告)日：2018-12-13
申请号：US16106009
申请日：2018-08-21
Inventor： Qiubin Gao , Shanzhi Chen , Runhua Chen , Wenhong Chen , Hui Li , Tamrakar Rakesh , Shaohui Sun
IPC: H04B7/06 , H04B7/0417 , H04B7/0456
CPC classification number: H04B7/0626 , H04B7/04 , H04B7/0417 , H04B7/0456 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04L1/06
Abstract: The disclosure discloses a method and apparatus for feeding back channel state information, and a method and apparatus for transmitting data. The method for feeding back channel state information includes: calculating channel state information according to a first codebook, where the first codebook is a set of elements and each of the elements is a set of pre-coding matrixes; and feeding back the channel state information.
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公开(公告)号：US11743805B2
公开(公告)日：2023-08-29
申请号：US16317829
申请日：2017-06-08
Inventor： Qiubin Gao , Runhua Chen , Hui Li , Tamrakar Rakesh , Qiuping Huang , Yu Yang , Yang Song , Xin Su , Mengjun Wang , Chuanjun Li
Abstract: Disclosed are a method and apparatus for transmitting an initial access signal, thus solving the existing problem wherein transmitting and detecting of synchronization signals cannot be applied to large-scale network coverage of a future communication system. The method comprises: determining at least one to-be-transmitted identification information of a synchronization block, the synchronization block comprising at least two components for transmitting an initial access signal, and different components occupying different time-frequency resources of the synchronization block; determining an initial access signal transmitted by each component in the synchronization block according to the identification information; and determining a time-frequency resource occupied by each component in the synchronization block and transmitting the initial access signal of the component on the time-frequency resource occupied by each component.
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公开(公告)号：US11528120B2
公开(公告)日：2022-12-13
申请号：US16766700
申请日：2018-10-11
Inventor： Xin Su , Runhua Chen , Qiubin Gao , Tamrakar Rakesh
Abstract: Disclosed in the present application are a data transmission method and apparatus and a computer storage medium, to map a data layer to a DMRS port used in transmission according to a preset DMRS port ordering rule, and perform transmission. The data transmission method provided in an embodiment of the present application comprises: determining a preset demodulation reference signal (DMRS) port ordering rule; and mapping a data layer to a DMRS port used in transmission according to the preset DMRS port ordering rule, and sending the data layer to a terminal.
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25.发明授权公开(公告)号：US11342966B2
公开(公告)日：2022-05-24
申请号：US16960876
申请日：2018-12-17
Inventor： Xin Su , Qiubin Gao , Tamrakar Rakesh , Runhua Chen
Abstract: The present application discloses an information indicating and determining method and apparatus, and a computer storage medium, being used for indicating QCL group information of a DMRS port, enabling a terminal to determine the QCL group information of the DMRS port. The embodiments of the present application provide an information indicating method, comprising: determining QCL group information of a demodulation reference signal DMRS port; and notifying a terminal of the QCL group information.
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Patent Agency Ranking
公开(公告)号：US11323170B2
公开(公告)日：2022-05-03
申请号：US16324902
申请日：2017-06-07
Inventor： Yang Song , Qiubin Gao , Runhua Chen , Tamrakar Rakesh , Xin Su , Chuanjun Li , Mengjun Wang , Yu Yang , Hui Li , Qiuping Huang
IPC: H04B7/08 , H04B7/0417 , H04B7/06
Abstract: The present invention relates to the technical field of wireless communications, and in particular, to a beam training method and device, for use in resolving the problems in the prior art of excessive time-consuming of a beam training process, large overhead of training signals, and relatively low efficiency. According to embodiments of the present invention, a transmit device sends beam training signals in two times. The first sending of a transmit beam training signal is for a receive device to select a transmit beam using a selected receive beam and report the transmit beam. The second sending is that the transmit device sends a receive beam training signal according to the transmit beam information report of the receive device, so as to train the received beam of the receive device. According to the embodiments of the present invention, an interactive beam training method is used to gradually search for the best transmit beam and receive beam, thereby avoiding completing beam training all at once, reducing beam training time and overhead, and improving efficiency.
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公开(公告)号：US11218209B2
公开(公告)日：2022-01-04
申请号：US16960551
申请日：2018-12-19
Inventor： Deshan Miao , Qiubin Gao , Runhua Chen , Tamrakar Rakesh
IPC: H04B7/06
Abstract: Disclosed are an information transmission method and device for improving CSI feedback performance and providing finer CSI feedback. The information transmission method of the present invention comprises: determining a quantity of layers transmitted on a channel; and determining, according to the quantity of the layers transmitted on the channel, channel state information (CSI) fed back for the respective layers, and transmitting the same, and the CSI fed back for the respective layers comprises information about multi-level beams.
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公开(公告)号：US11128423B2
公开(公告)日：2021-09-21
申请号：US16477135
申请日：2018-02-02
Inventor： Xin Su , Qiubin Gao , Tamrakar Rakesh , Runhua Chen , Hui Li , Chuanjun Li , Qiuping Huang , Mengjun Wang
IPC: H04B7/0456 , H04B7/06 , H04B7/08 , H04L5/00 , H04L25/02 , H04W8/24 , H04W24/10 , H04W72/04 , H04W88/02 , H04W88/08 , H04W88/12 , H04W92/10
Abstract: Disclosed are a beam forming and transmission method and a network device, for resolving the defects of limited flexibility and performance in prior art methods for improving the quality of channel estimation. The method comprises: a network side determining the configuration information of physical resource block (PRB) bundling parameters, the time domain configuration information of the configuration information of said PRB bundling parameters being configurable; the network side sending the configuration information of the PRB bundling parameters to a terminal so that after having received the configuration information of the PRB bundling parameters, the terminal uses a precoding mode corresponding to the configuration information of the PRB bundling parameters to perform channel estimation and demodulation.
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公开(公告)号：US11005550B2
公开(公告)日：2021-05-11
申请号：US16623369
申请日：2018-05-15
Inventor： Qiuping Huang , Tamrakar Rakesh , Runhua Chen , Qiubin Gao , Xin Su , Hui Li , Mengjun Wang , Chuanjun Li
IPC: H04L12/26 , H04B7/06 , H04B7/0417 , H04B7/0456 , H04L5/00 , H04L25/02 , H04W72/04
Abstract: Embodiments of the present application provide a method and apparatus for transmitting downlink control information (DCI), for solving the technical problem that neither the existing protocol nor the communication system has a method for encoding sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information. The method comprises: a network device determines the number of candidate values of preset indication information borne by a preset indication field in the downlink control information (DCI), the preset indication information comprising one of or a combination of two of the sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information; the network device determines the length of the preset indication field according to the number of candidate values of the preset indication information, and encodes the preset indication information according to the length to generate the DCI; and the network device sends the DCI to the UE.
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公开(公告)号：US20210083826A1
公开(公告)日：2021-03-18
申请号：US16961687
申请日：2018-12-12
Inventor： Xin SU , Qiubin GAO , Tamrakar Rakesh , Runhua CHEN
IPC: H04L5/00 , H04B7/0413 , H04B17/373
Abstract: Disclosed are a data transmission method and apparatus and a computer storage medium, used to arrive at the mapping a data layer, based on a predefined DMRS port ordering rule, onto the DMRS port used during transmission to transmit the data layer. The present application provides a data transmission method, comprising: determining a predefined demodulation reference signal (DMRS) port ordering rule; and mapping, according to the predefined DMRS port ordering rule, a data layer onto the DMRS port used during transmission to send the data layer to a terminal.
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