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11. 发明申请

US20180062722A1 HYBRID BEAMFORMING TRANSMISSION METHOD AND NETWORK DEVICE 有权
公开(公告)号：US20180062722A1
公开(公告)日：2018-03-01
申请号：US15556287
申请日：2016-01-22
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Xin SU , Chuanjun LI
IPC分类号： H04B7/06 , H04W72/04
CPC分类号： H04B7/0617 , H04B7/06 , H04B7/0626 , H04B7/0634 , H04W72/046 , H04W72/08
摘要： The present disclosure provides a hybrid beamforming transmission method and a network device. The hybrid beamforming transmission method includes steps of: determining, by a network device, a digital-domain beamforming weight matrix for a first UE in accordance with a channel measurement result; determining, by the network device, a set of beamforming weight matrices in accordance with the digital-domain beamforming weight matrix, and transmitting a signal to the first UE in an analog beamforming manner; selecting, by the network device, a beamforming weight matrix from the set of beamforming weight matrices in accordance with a measurement result from the first UE, as an analog-domain beamforming weight matrix for the first UE; and performing, by the network device, hybrid beamforming transmission in accordance with the determined digital-domain beamforming weight matrix and the selected analog-domain beamforming weight matrix.

12. 发明申请

US20170033856A1 METHOD, SYSTEM AND DEVICE FOR MEASURING CHANNEL STATE INFORMATION 审中-公开
标题翻译：用于测量通道状态信息的方法，系统和设备
公开(公告)号：US20170033856A1
公开(公告)日：2017-02-02
申请号：US15303657
申请日：2015-04-22
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Xin SU , Chuanjun LI
IPC分类号： H04B7/06 , H04W16/28 , H04L5/00 , H04W24/08 , H04B7/04
CPC分类号： H04B7/0626 , H04B7/04 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/12 , H04L5/0048 , H04W16/28 , H04W24/08 , H04W88/02
摘要： The present disclosure relates to the field of wireless communication technology, in particular to a method, system and device for measuring CSI, so as to solve the problem in the related art where, on the premise that a Massive MIMO technology plays to its strengths, a CSI measurement and feedback mechanism on the basis of a downlink reference signal may lead to obvious time-frequency resource overhead. The method includes steps of: transmitting, by a network side device, a group of reference signals which have been beamformed to a User Equipment (UE), so as to enable the UE to measure the reference signals, each reference signal in the group of reference signals corresponding to a space in a sector; and determining, by the network side device, whether or not a beamforming mode for each reference signal is to be adjusted in accordance with feedback information from the UE. According to the present disclosure, it is able to, on the premise that the Massive MIMO technology plays to its strengths, reduce the time-frequency resource overhead caused by the measurement and feedback of the downlink reference signals.
摘要翻译：本公开涉及无线通信技术领域，特别涉及用于测量CSI的方法，系统和设备，以解决相关技术中的问题，其中在大规模MIMO技术发挥其优势的前提下，基于下行链路参考信号的CSI测量和反馈机制可能导致明显的时间 - 频率资源开销。该方法包括以下步骤：由网络侧设备将已经被波束成形的一组参考信号发送到用户设备（UE），以便UE能够测量参考信号，组中的每个参考信号对应于扇区中的空间的参考信号; 以及由所述网络侧设备确定是否根据来自所述UE的反馈信息调整每个参考信号的波束成形模式。根据本公开，在大容量MIMO技术发挥其优势的前提下，能够减少由下行链路参考信号的测量和反馈引起的时间 - 频率资源开销。

13. 发明申请

US20200059277A1 DATA TRANSMISSION CONTROL METHOD, NETWORK SIDE DEVICE AND TERMINAL SIDE DEVICE 审中-公开
公开(公告)号：US20200059277A1
公开(公告)日：2020-02-20
申请号：US16476507
申请日：2018-02-07
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Xin SU , Qiubin GAO , Chuanjun LI , Mengjun WANG , Rakesh TAMRAKAR , Runhua CHEN , Hui LI , Qiuping HUANG
IPC分类号： H04B7/0456 , H04B7/06 , H04L5/00 , H04L5/10 , H04L1/00
摘要： The present disclosure provides a data transmission control method, a network side device and a terminal side device. The data transmission control method includes: mapping, by a network side device, a codeword to at least one data layer; mapping, by the network side device, the at least one data layer to at least one QCL group, the QCL group being an antenna port group established in accordance with a QCL relationship among antenna ports; and performing, by the network side device, data transmission in accordance with the QCL group. According to the present disclosure, it is able to perform the data transmission through multi-array antennae.

14. 发明申请

US20200036417A1 METHOD FOR INDICATING PRECODING INFORMATION, USER EQUIPMENT, AND ACCESS NETWORK ENTITY 审中-公开
公开(公告)号：US20200036417A1
公开(公告)日：2020-01-30
申请号：US16461087
申请日：2017-11-10
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Rakesh TAMRAKAR , Qiubin GAO , Hui LI , Runhua CHEN , Chuanjun LI , Mengjun WANG , Xin SU , Qiuping HUANG
IPC分类号： H04B7/0456 , H04B7/06 , H04L5/00
摘要： A method for indicating precoding information, user equipment (UE) and an access network entity are provided according to the disclosure. The method includes: receiving, by a user equipment (UE), a control signaling transmitted by an access network entity; determining, by the UE, a multilevel codebook index in response to the control signaling; and determining, by the UE, a target precoding matrix based on the multilevel codebook index and a multilevel codebook obtained in advance.

15. 发明申请

US20200028560A1 ANTENNA BEAM MANAGEMENT METHOD AND RELATED DEVICE 审中-公开
公开(公告)号：US20200028560A1
公开(公告)日：2020-01-23
申请号：US16337961
申请日：2017-07-31
申请人： China Academy of Telecommunications Technology
发明人： Qiubin GAO , Runhua CHEN , Tamrakar RAKESH , Xin SU , Chuanjun LI
IPC分类号： H04B7/06 , H04W16/28 , H04B7/0417 , H04B7/08 , H04W72/04
摘要： Disclosed in the present application are an antenna beam management method and related device, used for solving the problem in current large-scale antenna technology wherein the overhead of beam management control signaling is large. The method is: a terminal sending related information of a downlink beam of the terminal to a base station so that the base station determines a first downlink sending beam on the basis of the related information of the downlink beam; the terminal receiving notification information related to the first downlink sending beam send by the base station, the notification information comprising indication information that is used by the terminal to determine at least one first downlink receiving beam; the terminal determining the at least one first downlink receiving beam on the basis of the notification information; and the terminal receiving a downlink signal on the basis of the at least one first downlink receiving beam.

16. 发明申请

US20190326964A1 METHOD FOR TRANSMITTING A REFERENCE SIGNAL, METHOD FOR DETERMINING PHASE NOISE AND RELATED APPARATUSES 审中-公开
公开(公告)号：US20190326964A1
公开(公告)日：2019-10-24
申请号：US16475072
申请日：2017-08-25
申请人： China Academy of Telecommunications Technology
发明人： Hui LI , Qiubin GAO , Xin SU , Tamrakar PAKESH , Runhua CHEN , Qiuping HUANG , Chuanjun LI , Mengjun WANG
IPC分类号： H04B7/0456 , H04L25/02 , H04L27/26
摘要： 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.

17. 发明申请

US20190281538A1 DATA TRANSMISSION METHOD AND DEVICE 审中-公开
公开(公告)号：US20190281538A1
公开(公告)日：2019-09-12
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.

18. 发明申请

US20190013851A1 BROADCAST INFORMATION TRANSMISSION METHOD AND DEVICE 审中-公开
公开(公告)号：US20190013851A1
公开(公告)日：2019-01-10
申请号：US16067123
申请日：2017-01-24
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Xin SU , Chuanjun LI , Yang SONG
IPC分类号： H04B7/06 , H04B7/0413 , H04W4/06
摘要： Disclosed are a broadcast information transmission method and device. A base station uses preset beamforming weight vectors to perform beamforming on a physical broadcast channel. A plurality of preset beamforming weight vectors are used and sequentially selected by the base station to perform beamforming on the physical broadcast channel. Since a plurality of preset beamforming weight vectors are used, a coverage effect on a sector is therefore improved in comparison with a single beam. In addition, the preset beamforming weight vectors are sequentially selected by the base station to perform beamforming on the physical broadcast channel, and broadcast information transmitted by the physical broadcast channel therefore achieves effective coverage.

19. 发明申请

US20180367206A1 ANALOG CHANNEL MEASUREMENT METHOD AND BASE STATION 审中-公开
公开(公告)号：US20180367206A1
公开(公告)日：2018-12-20
申请号：US16066506
申请日：2016-09-12
申请人： China Academy of Telecommunications Technology
发明人： Xin SU , Yang SONG , Chuanjun LI
IPC分类号： H04B7/06 , H04L5/00
摘要： Disclosed are an analog channel measurement method and a base station, for use in implementing measurement of an analog channel in a digital-analog hybrid beamforming system. The method is such that: a base station receives a reference signal, where the base station comprises a digital-analog hybrid beamforming antenna system, and the digital-analog hybrid beamforming antenna system comprises digital channels and analog channels; the base station selects an analog channel group from an analog channel group set on the basis of the reference signal and employs the reference signal in measuring each analog channel of the selected analog channel group, where the number of analog channels that each analog channel group comprises is equal to the number of digital channels in the digital-analog hybrid beamforming antenna system.

20. 发明申请

US20170180064A1 CHANNEL STATE INFORMATION MEASUREMENT METHOD AND DEVICE, AND SIGNAL TRANSMISSION METHOD AND DEVICE 有权
公开(公告)号：US20170180064A1
公开(公告)日：2017-06-22
申请号：US15116825
申请日：2015-02-10
申请人： CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
发明人： Xin SU , Chuanjun LI
IPC分类号： H04B17/318 , H04B7/06
CPC分类号： H04B17/318 , H04B7/0413 , H04B7/0621 , H04L1/20 , H04L5/005 , Y02D70/00 , Y02D70/1262 , Y02D70/1264 , Y02D70/444
摘要： The present disclosure provides a CSI measurement method and a CSI measurement device. The CSI measurement method includes steps of: receiving channel state measurement information from a network side, the channel state measurement information including a CRS from a set of CRS ports corresponding to vertical beams having an identical Vshift parameter mode in a vertical dimension, the Vshift parameter mode being configured to determine shift values of CRS patterns in different vertical beams in the vertical dimension in a frequency domain; and performing CSI measurement in accordance with the channel state measurement information.

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