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1. 发明授权

US11664876B2 Method and device for training downlink beams 有权
公开(公告)号：US11664876B2
公开(公告)日：2023-05-30
申请号：US16324880
申请日：2017-08-03
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Qiuping Huang , Qiubin Gao , Runhua Chen , Hui Li , Rakesh Tamrakar , Yang Song , Xin Su , Yu Yang , Mengjun Wang , Chuanjun Li
IPC分类号： H04B7/08 , H04B7/0408 , H04B7/06
CPC分类号： H04B7/0851 , H04B7/0408 , H04B7/0695 , H04B7/088
摘要： A method and a device for transmitting downlink reception beam training signals are provided. The method at the second device side includes: receiving a downlink reception beam training trigger notification message sent by a first device; receiving downlink reception beam training signals sent by the first device, based on the downlink reception beam training trigger notification message; and performing a downlink reception beam training based on the downlink reception beam training signals. The method at the first device side includes: sending a downlink reception beam training trigger notification message to a second device when determining that a downlink reception beam training is to be performed for the second device, and sending downlink reception beam training signals to the second device after the downlink reception beam training trigger notification message is sent to the second device.

2. 发明授权

US11304187B2 Data transmission method, device, network device and user equipment 有权
公开(公告)号：US11304187B2
公开(公告)日：2022-04-12
申请号：US16622887
申请日：2018-05-30
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Runhua Chen , Qiubin Gao , Rakesh Tamrakar , Hui Li , Qiuping Huang , Xin Su
IPC分类号： H04W72/04
摘要： Embodiments of the present disclosure provide a data transmission method, a data transmission device, a network side device and UE. The data transmission method is applied to a first device and includes: transmitting Uplink (UL) Sounding Reference Signal (SRS) resource configuration information to a second device, where the SRS resource configuration information indicates K SRS resources; receiving an SRS signal transmitted from the second device according to the SRS resource configuration information; determining an SRS Resource Indicator (SRI), where the SRI indicates L SRS resources in the K SRS resources, L is an integer that is larger than or equals 1 and L is less than or equals K; and transmitting the SRI to the second device.

3. 发明授权

US11245439B2 Information indicating and determining method and apparatus, and computer storage medium 有权
公开(公告)号：US11245439B2
公开(公告)日：2022-02-08
申请号：US16960876
申请日：2018-12-17
申请人： China Academy of Telecommunications Technology
发明人： Xin Su , Qiubin Gao , Tamrakar Rakesh , Runhua Chen
IPC分类号： H04B7/02 , H04B7/024 , H04L5/00 , H04L27/26
摘要： 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.

4. 发明授权

US11063650B2 Method, network side device and terminal for indicating pilot precoding mode 有权
公开(公告)号：US11063650B2
公开(公告)日：2021-07-13
申请号：US16623375
申请日：2018-04-13
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Tamrakar Rakesh , Qiubin Gao , Xin Su , Hui Li , Runhua Chen , Qiuping Huang
IPC分类号： H04B7/02 , H04L1/02 , H04B7/06 , H04L5/00
摘要： 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.

5. 发明授权

US10912014B2 Data transmission method and device 有权
公开(公告)号：US10912014B2
公开(公告)日：2021-02-02
申请号：US16319807
申请日：2017-06-08
申请人： China Academy of Telecommunications Technology
发明人： Qiuping Huang , Qiubin Gao , Runhua Chen , Hui Li , Tamrakar Rakesh , Yang Song , Mengjun Wang , Chuanjun Li , Xin Su , Yu Yang
IPC分类号： H04W48/16 , H04J11/00 , H04L27/26
摘要： 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.

6. 发明申请

US20200287699A1 DATA TRANSMISSION METHOD AND APPARATUS, AND COMPUTER STORAGE MEDIUM 审中-公开
公开(公告)号：US20200287699A1
公开(公告)日：2020-09-10
申请号：US16766700
申请日：2018-10-11
申请人： China Academy of Telecommunications Technology
发明人： Xin Su , Runhua Chen , Qiubin Gao , Tamrakar Rakesh
IPC分类号： H04L5/10 , H04L5/00 , H04W72/12 , H04B7/06 , H04B7/0413 , H04W72/04 , H04W80/02 , H04W76/27
摘要： 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.

7. 发明授权

US09660779B2 Method, device, and system for transmitting reference signal 有权
公开(公告)号：US09660779B2
公开(公告)日：2017-05-23
申请号：US14424433
申请日：2013-08-29
申请人： China Academy of Telecommunications Technology
发明人： Meifang Jing , Xin Su , Rakesh Tamrakar , Qiubin Gao
IPC分类号： H04L5/00 , H04L25/02 , H04B7/06 , H04W16/28 , H04W72/04
CPC分类号： H04L5/0048 , H04B7/0617 , H04B7/0684 , H04L5/0023 , H04L5/005 , H04L5/0051 , H04L25/0204 , H04W16/28 , H04W72/0446
摘要： The present invention relates to the technical field of radio communications, and specifically relates to a method, device, and system for transmitting a reference signal, for use in solving the problem in the prior art that vertical-dimension channel estimation cannot be supported and thus 3D beamforming is not supported. The method of embodiments of the present invention comprises: a network side determines a subframe (31) used for bearing the reference signal, determines a pilot frequency port (32) of the reference signal, and transmits in the determined subframe the reference signal configured in the pilot frequency port, where all of the pilot frequency ports comprise at least one row of horizontal-dimension pilot frequency ports and one column of vertical-dimension pilot frequency ports, the reference signal configured in the horizontal-dimension pilot frequency ports is a horizontal-dimension reference signal, and the reference signal configured on the vertical-dimension pilot frequency ports is a vertical-dimension reference signal (33). Because the embodiments of the present invention are capable of transmitting the vertical-dimension reference signal, implementation of channel estimation on the vertical-dimension pilot frequency ports is allowed, and implementation of a dynamic 3D beamforming technology is allowed.

8. 发明授权

US09356669B2 Method, system and device for transmitting pre-coded indication information and determining pre-coding matrix 有权
标题翻译：用于发送预编码指示信息和确定预编码矩阵的方法，系统和装置
公开(公告)号：US09356669B2
公开(公告)日：2016-05-31
申请号：US14434396
申请日：2013-10-30
申请人： China Academy of Telecommunications Technology
发明人： Qiubin Gao , Rakesh Tamrakar , Xin Su
IPC分类号： H04B15/00 , H04B7/04 , H04L5/14 , H04W16/28
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/0478 , H04L5/14 , H04W16/28
摘要： An embodiment of the present application relates to the technical field of wireless communications, in particular to a method, system and device for transmitting pre-coded indication information and determining a pre-coding matrix. In the prior art, the existing codebook is designed for horizontal beamforming/pre-coding, and will reduce the performance thereof if directly applied in three-dimensional beamforming/pre-coding technique. The present application solves the problem. The method in the embodiment of the present application comprises: a user equipment (UE) determines and transmits first pre-coded indication information and second pre-coding indication information, the pre-coding matrix being equal to the function matrix of a first component pre-coding matrix and a second component pre-coding matrix, a sub-matrix on the diagonal of the first component pre-coding matrix being the Kronecker product of two diagonal matrixes, the second component pre-coding matrix being formed by a beam rotation vector equaling to the Kronecker product of two vectors. The embodiment of the present application improves the performance of the three-dimensional beamforming/pre-coding technique.
摘要翻译：本申请的实施例涉及无线通信的技术领域，特别涉及用于发送预编码指示信息和确定预编码矩阵的方法，系统和设备。在现有技术中，现有的码本被设计用于水平波束成形/预编码，并且如果直接应用于三维波束形成/预编码技术中，则其将降低其性能。本申请解决了这个问题。本申请实施例中的方法包括：用户设备（UE）确定并发送第一预编码指示信息和第二预编码指示信息，所述预编码矩阵等于第一分量预处理的函数矩阵编码矩阵和第二分量预编码矩阵，第一分量预编码矩阵的对角线上的子矩阵是两个对角矩阵的克罗内克乘积，第二分量预编码矩阵由波束旋转矢量等于两个向量的Kronecker乘积。本申请的实施例改进了三维波束形成/预编码技术的性能。

9. 发明申请

US20150280875A1 METHOD, DEVICE, AND SYSTEM FOR TRANSMITTING REFERENCE SIGNAL 有权
标题翻译：用于发送参考信号的方法，装置和系统
公开(公告)号：US20150280875A1
公开(公告)日：2015-10-01
申请号：US14424433
申请日：2013-08-29
申请人： China Academy of Telecommunications Technology
发明人： Meifang Jing , Xin Su , Rakesh Tamrakar , Qiubin Gao
IPC分类号： H04L5/00 , H04W16/28 , H04L25/02 , H04W72/04
CPC分类号： H04L5/0048 , H04B7/0617 , H04B7/0684 , H04L5/0023 , H04L5/005 , H04L5/0051 , H04L25/0204 , H04W16/28 , H04W72/0446
摘要： The present invention relates to the technical field of radio communications, and specifically relates to a method, device, and system for transmitting a reference signal, for use in solving the problem in the prior art that vertical-dimension channel estimation cannot be supported and thus 3D beamforming is not supported. The method of embodiments of the present invention comprises: a network side determines a subframe (31) used for bearing the reference signal, determines a pilot frequency port (32) of the reference signal, and transmits in the determined subframe the reference signal configured in the pilot frequency port, where all of the pilot frequency ports comprise at least one row of horizontal-dimension pilot frequency ports and one column of vertical-dimension pilot frequency ports, the reference signal configured in the horizontal-dimension pilot frequency ports is a horizontal-dimension reference signal, and the reference signal configured on the vertical-dimension pilot frequency ports is a vertical-dimension reference signal (33). Because the embodiments of the present invention are capable of transmitting the vertical-dimension reference signal, implementation of channel estimation on the vertical-dimension pilot frequency ports is allowed, and implementation of a dynamic 3D beamforming technology is allowed.
摘要翻译：本发明涉及无线电通信的技术领域，具体涉及用于发送参考信号的方法，装置和系统，用于解决现有技术中不能支持垂直维度信道估计的问题，因此不支持3D波束成形。本发明实施例的方法包括：网络侧确定用于承载参考信号的子帧（31），确定参考信号的导频频率端口（32），并在确定的子帧中发送配置在导频频率端口，其中所有的导频频率端口包括至少一行的水平维度的导频频率端口和一列垂直维度的导频频率端口，在水平维度的导频频率端口中配置的参考信号是水平的尺寸参考信号，并且在垂直维度导频频率端口上配置的参考信号是垂直维度参考信号（33）。因为本发明的实施例能够发送垂直维度参考信号，所以允许在垂直维度导频频率端口上实现信道估计，并且允许动态3D波束成形技术的实现。

10. 发明授权

US11431465B2 Control information sending method and receiving method, base station, and terminal 有权
公开(公告)号：US11431465B2
公开(公告)日：2022-08-30
申请号：US16637957
申请日：2018-08-08
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Baojuan Guo , Xin Su
IPC分类号： H04L5/10 , H04L5/00 , H04W72/04
摘要： A method of sending control information, a method of receiving control information, a base station, and a terminal are provided. The method of sending control information is applied to a base station and includes: acquiring an index, in a preset DMRS configuration table, of DMRS configuration information of a PDSCH; and sending the index to a terminal through downlink control information.

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