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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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Patent Agency Ranking
23.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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公开(公告)号：US20180302898A1
公开(公告)日：2018-10-18
申请号：US15770167
申请日：2016-09-29
Inventor： Xin SU , Yang SONG , Chuanjun LI
Abstract: Disclosed are a downlink data transmission method, equipment, and system, used for reducing the data transmission pressure of a data forward transmission interface. The method comprises: first equipment receives, by means of a forward transmission interface, data of a scheduled terminal sent by second equipment, the data of the scheduled terminal being data obtained after the second equipment performs first spatial preprocessing on baseband data of the scheduled terminal; the first equipment performs second spatial preprocessing on the data of the scheduled terminal; and the first equipment converts the data, obtained after second spatial preprocessing, into a radio-frequency signal, and sends the radio-frequency signal.
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公开(公告)号：US20180026766A1
公开(公告)日：2018-01-25
申请号：US15550326
申请日：2016-01-08
Inventor： Chuanjun LI , Xin SU
Abstract: An antenna calibration method and apparatus, which are used for improving calibration accuracy. In the embodiments of the present invention, sending direction radio frequency channels in an antenna array are grouped into M groups, an intra-group sending calibration pilot frequency sequence of each group of sending direction radio frequency channel is sent at different sending time slots in a time division manner, and along with the decreasing of the quantity of each group of sending direction radio frequency channels, a length of the intra-group sending calibration pilot frequency sequence mapped on each radio frequency channel used for channel estimation is increased, thereby improving the accuracy of an inter-channel compensation factor of each determined sending direction radio frequency channel.
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27.发明申请ACTIVE ANTENNA ASSOCIATED DEVICE AND SYSTEM, AND TRANSMITTING AND RECEIVING CALIBRATION METHOD 审中-公开主动天线相关设备和系统，以及发射和接收校准方法公开(公告)号：US20170077602A1
公开(公告)日：2017-03-16
申请号：US15310702
申请日：2015-05-14
Inventor： Chuanjun LI , Xin SU
Abstract: An active antenna associated device and system, and a transmitting and receiving calibration method, used for implementing extensible design of an antenna array, reducing construction implementation difficulty, and ensuring construction implementation reliability. The active antenna unit comprises: N active antenna arrays, a main calibration coupling circuit unit, a transmitting and receiving calibrating unit, a calibration parameter storage unit, and a radio over fiber (ROF) photoelectric conversion unit, wherein N is larger than 1. Each active antenna array at least comprises an antenna calibration coupling circuit unit and M antenna oscillators connected to the antenna calibration coupling circuit unit, wherein M is larger than 1. The antenna calibration coupling circuit units of the active antenna arrays are connected to the main calibration coupling circuit unit through a calibration radio frequency channel. The main calibration coupling circuit is connected with the transmitting and receiving calibrating unit. The transmitting and receiving calibrating unit and the calibration parameter storage unit are respectively connected to the ROF photoelectric conversion unit.
Abstract translation: 一种有源天线相关设备和系统，以及用于实现天线阵列的可扩展设计的发射和接收校准方法，降低了施工实施难度，并确保了施工实施的可靠性。 有源天线单元包括：N个有源天线阵列，主校准耦合电路单元，发射和接收校准单元，校准参数存储单元和无线电光纤（ROF）光电转换单元，其中N大于1。 每个有源天线阵列至少包括连接到天线校准耦合电路单元的天线校准耦合电路单元和M个天线振荡器，其中M大于1.有源天线阵列的天线校准耦合电路单元连接到主校准 耦合电路单元通过校准射频信道。 主校准耦合电路与发射和接收校准单元连接。 发送和接收校准单元和校准参数存储单元分别连接到ROF光电转换单元。
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