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公开(公告)号：US20200274558A1
公开(公告)日：2020-08-27
申请号：US16066226
申请日：2016-11-28
Inventor： Xin SU , Yang SONG , Chuanjun LI
Abstract: The present application discloses a method and an apparatus for signal processing. In the present application, since a front end device in a base station system performs MIMO detection and related baseband-processing of a time domain signal received from an antenna unit and transmits the signal that is baseband-processed to a back end device of the base station system, the back end device merely performs other baseband processing, apart from the MIMO detection and the related baseband processing. Compared with the prior art, the embodiments of the present application move some of the baseband processing forward to be implemented on a front end device such that only the data of each scheduled user with less redundancy are required to be transmitted in an interface between the front end device and a backend device, reducing the pressure on the rate of data transmission between the front end device and the back end device.
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公开(公告)号：US20200036421A1
公开(公告)日：2020-01-30
申请号：US16337373
申请日：2017-09-13
Inventor： Xin SU , Qiubin GAO , Rakesh TAMRAKAR , Runhua CHEN , Chuanjun LI , Mengjun WANG , Hui LI , Qiuping HUANG
IPC: H04B7/06 , H04B7/0452 , H04B7/08 , H04W16/28 , H04L5/00
Abstract: A beam scanning and search tracking method and device are provided. The method includes constructing analog beams and performing digital beam-forming to the analog beams so as to form equivalent beams; transmitting reference signals to a second communication node by using the equivalent beams; receiving beam information about the equivalent beams and corresponding channel state information fed back by the second communication node according to the reference signals; performing a beam scanning operation and a search tracking operation by using the beam information and the channel state information.
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公开(公告)号：US20190312697A1
公开(公告)日：2019-10-10
申请号：US16349014
申请日：2017-12-28
Inventor： Hui LI , Qiubin GAO , Rakesh TAMRAKAR , Xin SU , Runhua CHEN , Qiuping HUANG , Chuanjun LI , Mengjun WANG
IPC: H04L5/00 , H04B7/0456
Abstract: The present disclosure provides a reference signal transmission method, a transmitter and a receiver. The reference signal transmission method includes: precoding, by a transmitter, a data stream for user data through a second precoding matrix so as to acquire D virtual data streams; precoding, by the transmitter, the D virtual data streams through a first precoding matrix, and transmitting the D precoded virtual data streams to a receiver via T antenna groups, each antenna group including one or more antenna units or antenna ports having a same phase noise; transmitting, by the transmitter, D demodulation reference signals to the receiver; and transmitting, by the transmitter, M phase-tracking reference signals to the receiver, the M phase-tracking reference signals being adopted to track phase changes in the T antenna groups caused by one or more phase noise sources.
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公开(公告)号：US20190297560A1
公开(公告)日：2019-09-26
申请号：US16317829
申请日：2017-06-08
Inventor： Qiubin GAO , Runhua CHEN , Hui LI , Tamrakar RAKESH , Qiuping HUANG , Yu YANG , Yang SONG , Xin SU , Mengjun WANG , Chuanjun LI
Abstract: Disclosed are a method and apparatus for transmitting an initial access signal, thus solving the existing problem wherein transmitting and detecting of synchronization signals cannot be applied to large-scale network coverage of a future communication system. The method comprises: determining at least one to-be-transmitted identification information of a synchronization block, the synchronization block comprising at least two components for transmitting an initial access signal, and different components occupying different time-frequency resources of the synchronization block; determining an initial access signal transmitted by each component in the synchronization block according to the identification information; and determining a time-frequency resource occupied by each component in the synchronization block and transmitting the initial access signal of the component on the time-frequency resource occupied by each component.
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公开(公告)号：US20180367225A1
公开(公告)日：2018-12-20
申请号：US16060263
申请日：2016-11-22
Inventor： Chuanjun LI , Xin SU , Yuexia SONG , Shouning JIANG
Abstract: Disclosed are an active antenna device and a test method therefor, for resolving the problem that existing large-scale active antennae cannot be tested by using a traditional test method due to no traditional antenna connectors. The active antenna device comprises: a transceiver array, a radio frequency calibration and test distribution network unit, an antenna passive distribution network unit, an antenna array, and S test connectors, wherein the radio frequency calibration and test distribution network unit is connected to the transceiver array through N data channels and M calibration channels respectively and is connected to the test connectors, and the antenna passive distribution network unit is connected to the radio frequency calibration and test distribution network unit through N data channels and is connected to the antenna array through P data channels, N being a positive integer greater than or equal to 1, M being a positive integer greater than or equal to 1, P being a positive integer greater than or equal to 1, and S being a positive integer greater than or equal to 1.
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Patent Agency Ranking
公开(公告)号：US20180062722A1
公开(公告)日：2018-03-01
申请号：US15556287
申请日：2016-01-22
Inventor： Xin SU , Chuanjun LI
CPC classification number: H04B7/0617 , H04B7/06 , H04B7/0626 , H04B7/0634 , H04W72/046 , H04W72/08
Abstract: 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.
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公开(公告)号：US20170033856A1
公开(公告)日：2017-02-02
申请号：US15303657
申请日：2015-04-22
Inventor： Xin SU , Chuanjun LI
CPC classification number: H04B7/0626 , H04B7/04 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/12 , H04L5/0048 , H04W16/28 , H04W24/08 , H04W88/02
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20210336734A1
公开(公告)日：2021-10-28
申请号：US16322460
申请日：2017-07-18
Inventor： Rakesh TAMRAKAR , Runhua CHEN , Qiubin GAO , Hui LI , Qiuping HUANG , Yang SONG , Chuanjun LI , Mengjun WANG , XIN SU , YU YANG
Abstract: A triggering method and a transmitting method for an uplink reference signal in a communication system, apparatuses thereof, and a storage medium are provided. The communication system includes at least two different signal parameters. The triggering method applied to a network side includes: generating, by the network side, a trigger signaling for triggering a terminal to transmit the uplink reference signal to the network side for one or more times; and transmitting, by the network side, the trigger signaling to the terminal.
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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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10.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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