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公开(公告)号：US11245439B2
公开(公告)日：2022-02-08
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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公开(公告)号：US11063650B2
公开(公告)日：2021-07-13
申请号：US16623375
申请日：2018-04-13
Inventor： Tamrakar Rakesh , Qiubin Gao , Xin Su , Hui Li , Runhua Chen , Qiuping Huang
Abstract: Disclosed by the present invention are a method, a network side device and a terminal for indicating a pilot precoding mode, wherein the method comprises: The network side device assigns at least one group of pilots to the terminal, wherein each group of pilots comprises at least one pilot. The network side device determines pilot precoding indication information for the at least one group of pilots, wherein the pilot precoding indication information is used to characterize whether each pilot in each group of pilots uses the same precoding matrix. The network side device sends the at least one group of pilots and the pilot precoding indication information to the terminal. The present invention may solve the technical problem not disclosed in prior art of a solution for how a base station or a terminal specifically indicates a pilot precoding mode, so as to improve the control efficiency of a network side device.
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公开(公告)号：US10912014B2
公开(公告)日：2021-02-02
申请号：US16319807
申请日：2017-06-08
Inventor： Qiuping Huang , Qiubin Gao , Runhua Chen , Hui Li , Tamrakar Rakesh , Yang Song , Mengjun Wang , Chuanjun Li , Xin Su , Yu Yang
Abstract: Disclosed are a data transmission method and device. The method comprises: a sending end sending at least one synchronization signal (SI), with the SI carrying a first identifier; and at a time-frequency location of system information corresponding to the SI, sending the system information, the system information carrying information for indicating a second identifier, and identification information about the sending end comprising the first identifier and the second identifier. According to a mapping relationship between an SI and a first identifier, a receiving end can obtain the first identifier after detecting the SI; and by means of carrying information for indicating a second identifier in system information, the receiving end can obtain the second identifier after detecting the system information, so that the receiving end can obtain all the identification information about the sending end according to the first identifier and the second identifier.
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公开(公告)号：US20200287699A1
公开(公告)日：2020-09-10
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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公开(公告)号：US10567049B2
公开(公告)日：2020-02-18
申请号：US15755090
申请日：2016-07-19
Inventor： Hui Li , Shanzhi Chen , Qiubin Gao , Runhua Chen , Wenhong Chen , Tamrakar Rakesh
IPC: H04B7/0456 , H03M1/26 , H04L25/03 , H04B7/06
Abstract: Methods and apparatuses for transmitting coding indication information and determining a precoding matrix, for use in resolving the problem that the resolution of code words in a codebook generated by using a combination of a beam vector subgroup and column selection cannot be flexibly adjusted. The method comprises: determining first precoding indication information and second precoding indication information, the first precoding indication information corresponding to a first-stage precoding matrix, the second precoding indication information corresponding to a direction weighting vector and a phase adjustment factor, the direction weighting vector being used for performing interpolation processing on parts representing angles corresponding to beam vectors in the all beam vectors in each polarization direction in the first-stage precoding matrix, the phase adjusting factor being used for performing phase adjustment on different polarization directions of the first-stage precoding matrix, and the first-stage precoding matrix, the direction weighting vector, and the phase adjustment factor being used for generating a precoding matrix. The resolution of a precoding matrix is flexibly adjusted by using a direction weighting vector.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200344020A1
公开(公告)日：2020-10-29
申请号：US16764851
申请日：2018-10-19
Inventor： Baojuan Guo , Tamrakar Rakesh
Abstract: Disclosed are a method and a device for information indication and resource determination, and a computer storage medium, which are used to indicate and determine the resource occupation state of a DMRS port, and to save a signaling overhead. The information indication method provided in an embodiment of the present application comprises: determining indication information on a demodulation reference signal (DMRS) port resource that a terminal needs to occupy, according to a preset configuration list, wherein the configuration list comprises DMRS group information and DMRS port information; and notifying the terminal of the indication information.
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公开(公告)号：US20200343961A1
公开(公告)日：2020-10-29
申请号：US16960551
申请日：2018-12-19
Inventor： Deshan MIAO , Giubin 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：US10812235B2
公开(公告)日：2020-10-20
申请号：US16337936
申请日：2017-09-27
Inventor： Hui Li , Runhua Chen , Qiubin Gao , Tamrakar Rakesh , Qiuping Huang
Abstract: Disclosed are a reference signal mapping method and device, used for realizing a CSI-RS mapping of 16 or more ports, so as to realize a CSI-RS transmission of 16 or more ports. The method comprises: according to an N port reference signal pattern, determining that a channel state information reference signal (CSI-RS) is mapped on a resource unit RE, N being an integer greater than 16, wherein, an RE position, having one N port CSI-RS of the N port reference signal pattern mapped thereto, is determined according to an RE position having a CSI-RS in a plurality of groups of 8 port reference signal patterns mapped thereto, each S port in the N port is multiplexed with S code words of 8 code words using an 8-bit orthogonal spreading code, and the 8 port reference signal pattern is an 8 port CSI-RS pattern defined by 3GPP Rel-13; and performing resource mapping on the CSI-RS according to the determined RE.
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公开(公告)号：US10804979B2
公开(公告)日：2020-10-13
申请号：US16499260
申请日：2018-03-21
Inventor： Qiubin Gao , Runhua Chen , Tamrakar Rakesh
IPC: H04B7/0408 , H04B7/0452 , H04B7/0417 , H04W72/04
Abstract: Disclosed in the present invention are a method and device for acquiring and feeding back transmission beam information, comprising: a base station transmits, to a terminal, reference signals and information related to reference signal set division by using downlink transmission beams, wherein the base station transmits a reference signal for each downlink transmission beam, the reference signal of each beam is issued after being formed by using a beam forming weight corresponding to the beam, and the reference signals transmitted using the downlink transmission beams from the same beam group are divided into a reference signal set; the terminal selects Q reference signals from the received reference signals according to the reception quality and according to the information related to reference signal set division, selects a downlink transmission beam combination, and reports to the base station.
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公开(公告)号：US10396875B2
公开(公告)日：2019-08-27
申请号：US15749122
申请日：2016-07-21
Inventor： Wenhong Chen , Shanzhi Chen , Qiubin Gao , Runhua Chen , Tamrakar Rakesh , Hui Li
Abstract: The present application provides a channel state information (CSI) feedback and receiving method and device. The CSI feedback method by a UE comprises: determining, according to an indication of a base station, at least one CSI feedback configuration group configured by the base station, wherein each CSI feedback configuration group comprises at least one CSI feedback configuration; and upon determination of a need to report CSI, reporting, via a PUCCH or PUSCH, to the base station CSI acquired based on a first CSI feedback configuration, wherein the first CSI feedback configuration is a CSI feedback configuration determined, according to location information of a CSI feedback configuration in the most recent report or location information of a CSI feedback configuration indicated by the base station, from a corresponding CSI feedback configuration group by the UE. The present application supports independent reporting of location information and corresponding CSI, thus improving the detection performance of such information, and further supports a base station to acquire CSI corresponding to a specified CSI feedback configuration, thus enabling more flexible downlink scheduling and transmission.
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