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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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22.发明申请公开(公告)号：US20180041265A1
公开(公告)日：2018-02-08
申请号：US15551275
申请日：2016-01-14
Inventor： Xin SU
IPC: H04B7/06 , H04L5/00 , H04B17/336 , H04B7/0456
CPC classification number: H04B7/0634 , H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0626 , H04B7/0632 , H04B7/0658 , H04B17/336 , H04L5/0057 , H04W24/10
Abstract: A CSI feedback method includes steps of: performing, by a terminal, channel estimation on a received pilot signal to acquire channel estimation values of A antenna ports for transmitting the pilot signal to a network device; determining, by the terminal, Q antenna ports based on the channel estimation values of the A antenna ports, L≦Q≦A, L representing a value of a RI adopted by the network device in the case of transmitting downlink data to the terminal or a value of a RI of a channel determined by the terminal; and determining, by the terminal, a first-level PMI based on the Q antenna ports, and feeding back CSI containing the first-level PMI to the network device, the first-level PMI being used to indicate indices of the Q antenna ports among the A antenna ports for transmitting the pilot 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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24.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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公开(公告)号：US20200287604A1
公开(公告)日：2020-09-10
申请号：US16494989
申请日：2018-03-08
Inventor： Qiubin GAO , Rakesh TAMRAKAR , Xin SU , Qiuping HUANG , Hui LI
Abstract: A method, an apparatus, and an electronic device of determining beam reciprocity of a device, and a computer readable storage medium are provided. The method includes: instructing a second device to transmit, by using a transmission beam obtained based on beam reciprocity, a reference signal; receiving the reference signal transmitted by the second device, and calculating a reception quality of the reference signal; receiving a plurality of beam training signals transmitted by the second device, and calculating reception qualities of the plurality of beam training signals, respectively; comparing the reception quality of the reference signal with a reference reception quality obtained based on the reception qualities of the plurality of beam training signals, and determining, based on a result of the comparison, whether the beam reciprocity of the second device is established or not.
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Patent Agency Ranking
公开(公告)号：US20200244334A1
公开(公告)日：2020-07-30
申请号：US16619082
申请日：2018-05-15
Inventor： Qiuping HUANG , Qiubin GAO , Runhua CHEN , Tamrakar RAKESH , Xin SU , Hui LI , Mengjun WANG , Chuanjun LI
Abstract: Disclosed are a beam management method, a network device and a terminal. The method comprises: the network device allocates an SRS source to a terminal; and the network device transmits indication information to the terminal, wherein the indication information is used for indicating the terminal to select a transmission beam used for transmitting SRS on the SRS source, so as to manage the transmission beam of the terminal and a receiving beam of a base station more flexibly and effectively, to achieve scanning of the transmission beam of the terminal and/or the receiving beam of the base station.
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27.发明申请公开(公告)号：US20200067735A1
公开(公告)日：2020-02-27
申请号：US16483102
申请日：2018-02-05
Inventor： Qiubin GAO , Rakesh TAMRAKAR , Runhua CHEN , Xin SU
Abstract: The present disclosure provides an indication method, including: determining first transmission resources related to a transmission channel for a large-scale channel parameter or a group of large-scale channel parameters, and transmitting configuration information about the first transmission resources to a terminal device via first signaling, the first transmission resources being transmission resources for K downlink reference signals, K being a positive integer; and selecting second transmission resources from the first transmission resources in accordance with a transmission parameter used by the transmission channel, and transmitting indication information about the second transmission resources to the terminal device via second signaling, the second transmission resources being transmission resources for L downlink reference signals, L being a positive integer, and K being greater than or equal to L.
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公开(公告)号：US20200036495A1
公开(公告)日：2020-01-30
申请号：US16496698
申请日：2018-03-14
Inventor： Rakesh TAMRAKAR , Qiubin GAO , Xin SU , Hui LI , Qiuping HUANG
Abstract: A signal processing method and device are provided. The method includes indicating a first uplink sounding reference signal resource to a terminal, wherein the first uplink sounding reference signal resource is used for uplink beam scanning; receiving a uplink sounding reference signal transmitted by the terminal by using the first uplink sounding reference signal resource; determining a target uplink sounding reference signal based on the uplink sounding reference signal transmitted by the terminal, and transmitting an identifier of the target uplink sounding reference signal to the terminal; indicating a second uplink sounding reference signal resource to the terminal, the second uplink sounding reference signal resource being used to cause the terminal to transmit an uplink sounding reference signal for channel measurement based on the identifier of the target uplink sounding reference signal and the second uplink sounding reference signal resource.
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29.发明申请公开(公告)号：US20190174439A1
公开(公告)日：2019-06-06
申请号：US16323242
申请日：2017-07-17
Inventor： Rakesh TAMRAKAR , Runhua CHEN , Qiubin GAO , Gaping HUANG , Hui LI , Chuanjun LI , Yang SONG , Xin SU , Yu YANG , Mengjun WANG
Abstract: A method for acquiring system information, a method for transmitting system information, a terminal, a network reception and transmission node and a storage medium are provided. The method for acquiring the system information includes: receiving a synchronization signal transmitted from a network reception and transmission node, and acquiring feature information of the synchronization signal, node information of the network reception and transmission node and a correspondence between the feature information and a transmitting position of the system information; acquiring the transmitting position of the system information corresponding to the node information based on the feature information and the correspondence: and receiving, at the transmitting position of the system information, the system information transmitted from the network reception and transmission node.
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公开(公告)号：US20190007119A1
公开(公告)日：2019-01-03
申请号：US16067122
申请日：2016-11-01
Inventor： Xin SU , Yang SONG , Chuanjun LI
IPC: H04B7/06 , H04B7/0456
CPC classification number: H04B7/0639 , H04B7/04 , H04B7/0417 , H04B7/0456
Abstract: Provided are a method and device for uplink information feedback and downlink data transmission, used, when the speed of motion of a terminal is high, for solving the problem of CSI information reported by the terminal being insufficient to track changes on the channel, such that data transmission carried out on the basis of the channel state information reported by the terminal causes seriously degraded performance. The method comprises: a base station obtaining a precoding matrix of a terminal, and an l-th precoding matrix set of L precoding matrix sets corresponding to said precoding matrix; each precoding matrix set of said L precoding matrix sets containing at least one precoding matrix; said at least one precoding matrix originating from a preset codebook, wherein l≤L and L is a positive integer; according to the precoding matrix contained in the obtained l-th precoding matrix set, the base station sending downlink data to the terminal. By means of the precoding matrix set, a relatively wide beam is formed to cover the user, thus guaranteeing downlink transmission for the terminal when it is moving at high speed, improving the reliability of downlink transmission.
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