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11.发明申请公开(公告)号：US20190326964A1
公开(公告)日：2019-10-24
申请号：US16475072
申请日：2017-08-25
Inventor： Hui LI , Qiubin GAO , Xin SU , Tamrakar PAKESH , Runhua CHEN , Qiuping HUANG , Chuanjun LI , Mengjun WANG
IPC: H04B7/0456 , H04L25/02 , H04L27/26
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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公开(公告)号：US20190281538A1
公开(公告)日：2019-09-12
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：US20190013851A1
公开(公告)日：2019-01-10
申请号：US16067123
申请日：2017-01-24
Inventor： Xin SU , Chuanjun LI , Yang SONG
IPC: H04B7/06 , H04B7/0413 , H04W4/06
Abstract: 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.
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公开(公告)号：US20180367206A1
公开(公告)日：2018-12-20
申请号：US16066506
申请日：2016-09-12
Inventor： Xin SU , Yang SONG , Chuanjun LI
Abstract: 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.
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15.发明申请公开(公告)号：US20170180064A1
公开(公告)日：2017-06-22
申请号：US15116825
申请日：2015-02-10
Inventor： Xin SU , Chuanjun LI
IPC: H04B17/318 , H04B7/06
CPC classification number: H04B17/318 , H04B7/0413 , H04B7/0621 , H04L1/20 , H04L5/005 , Y02D70/00 , Y02D70/1262 , Y02D70/1264 , Y02D70/444
Abstract: 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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Patent Agency Ranking
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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公开(公告)号：US20210083754A1
公开(公告)日：2021-03-18
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：US20200028549A1
公开(公告)日：2020-01-23
申请号：US16338322
申请日：2017-07-25
Inventor： Xin SU , Qiubin GAO , Runhua CHEN , Tamrakar RAKESH , Chuanjun LI , Mengjun WANG , Hui LI , Qiuping HUANG
IPC: H04B7/0452 , H04W72/04 , H04B7/0408 , H04B7/06 , H04L5/00
Abstract: Disclosed are a beam scanning method and a related device, used for solving the problem that, during the existing process of determining the optimal transceiving beam by performing traversal search on a combination of potential transceiving beams, a large amount of system overhead needs to be occupied, thus reducing the system efficiency and the adaptability to a time-varying channel. The method comprises: a first communication node determines at least one transmitted beam according to the optimal receiving beam group between a receiver of the first communication node and a transmitter of a second communication node; the first communication node sequentially sends a signal to the second communication node by means of the transmitter according to the determined at least one transmitted beam until the optimal transmitted beam is determined.
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19.发明申请公开(公告)号：US20190245728A1
公开(公告)日：2019-08-08
申请号：US16331934
申请日：2017-07-24
Inventor： Hui LI , Qiubin GAO , Xin SU , Runhua CHEN , Rakesh TAMRAKAR , Qiuping HUANG , Chuanjun LI , Mengjun WANG
CPC classification number: H04L27/2613 , H04L1/0003 , H04L1/0009 , H04L27/26
Abstract: A method for transmitting a phase noise compensation reference signal, a transmission device and a reception device are provided. The method includes: determining one or more configurations from N configurations for a transmission resource of the phase noise compensation reference signal; and transmitting the phase noise compensation reference signal according to the one or more configurations. The N configurations have different time-domain densities or different frequency-domain densities, or a plurality of configurations of the N configurations has a same time-domain density and a same frequency-domain density, where N is an integer greater than or equal to 2.
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公开(公告)号：US20190166545A1
公开(公告)日：2019-05-30
申请号：US16317945
申请日：2017-07-11
Inventor： Hui LI , Qiubin GAO , Runhua CHEN , Chuanjun LI , Xin SU , Yang SONG , Rakesh TAMRAKAR , Yu YANG , Qiuping HUANG , Mengjun WANG
Abstract: A method and a device for accessing a system information area or a network area are provided. The method includes: receiving, by a terminal, at least one initial access signal (IAS) transmitted from the system information area or the network area; and obtaining, by the terminal, one or more of a subframe boundary, a system bandwidth, a starting frequency and an ending frequency of the system information area or the network area based on the received IAS.
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