-
公开(公告)号：US20200068566A1
公开(公告)日：2020-02-27
申请号：US16476384
申请日：2018-02-07
Inventor： Xuejuan GAO , Xueming PAN
Abstract: A data transmission method, a terminal and a base station are provided by the present disclosure. The data transmission method of the present disclosure includes: receiving a downlink control channel carrying an indication field, wherein the indication field is used for indicating a time domain resource of a target transmission corresponding to the downlink control channel, and/or division of uplink resources and downlink resources in a target time unit in which the target transmission is located; determining the time domain resource of the target transmission corresponding to the downlink control channel, according to the indication field; and transmitting data on the time domain resource.
-
公开(公告)号：US10574429B2
公开(公告)日：2020-02-25
申请号：US15539646
申请日：2016-01-11
Inventor： Yanping Xing , Zukang Shen , Yanan Lin
Abstract: A data transmission method and a data transmission device for a TDD system are provided, so as to reduce the frequency hopping operations, reduce the retuning time, prolong a valid duration for the data transmission and reduce the time period for the data transmission, and reduce the power consumption. The data transmission method includes steps of: at a predetermined retuning start time point, adjusting, by a UE, a carrier frequency for data reception and transmission within a predetermined retuning duration so as to acquire the adjusted carrier frequency; and performing, by the UE, uplink data transmission and downlink data reception at the adjusted carrier frequency with a network device within a consecutive duration in accordance with a TDD uplink-downlink configuration. The consecutive duration is a duration from a current retuning end time point to a next retuning start time point.
-
公开(公告)号：US10554283B2
公开(公告)日：2020-02-04
申请号：US16067122
申请日：2016-11-01
Inventor： Xin Su , Yang Song , Chuanjun Li
IPC: H04B7/06 , H04B7/0456 , H04B7/04 , H04B7/0417
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.
-
公开(公告)号：US20200037339A1
公开(公告)日：2020-01-30
申请号：US16480841
申请日：2018-02-28
Inventor： Rui ZHAO , Ying PENG , Li ZHAO , Jiayi FANG
IPC: H04W72/12
Abstract: A data detection method and a terminal applied to a first terminal are provided. The method includes receiving one or more pieces of SA information transmitted by one or more second terminals and used to indicate transmission resources of one or more data-to-be-detected; determining, based on the one or more pieces of SA information, one or more detection weight values corresponding to the one or more data-to-be-detected; detecting, based on the one or more detection weight values, the one or more data-to-be-detected within a data detection capability of the first terminal.
-
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.
-
Patent Agency Ranking
公开(公告)号：US20200028547A1
公开(公告)日：2020-01-23
申请号：US16499260
申请日：2018-03-21
Inventor： Qiubin GAO , Runhua CHEN , Tamrakar RAKESH
IPC: H04B7/0417 , H04B7/0408 , H04W72/04
Abstract: Disclosed in the present invention are a method and device for acquiring and feeding back transmission beam information, comprising: a base station transmits, to a terminal, reference signals and information related to reference signal set division by using downlink transmission beams, wherein the base station transmits a reference signal for each downlink transmission beam, the reference signal of each beam is issued after being formed by using a beam forming weight corresponding to the beam, and the reference signals transmitted using the downlink transmission beams from the same beam group are divided into a reference signal set; the terminal selects Q reference signals from the received reference signals according to the reception quality and according to the information related to reference signal set division, selects a downlink transmission beam combination, and reports to the base station; and the base station determines a downlink transmission beam for transmitting data to the terminal according to a proposal. The present invention may enable the terminal and the base station to obtain more accurate beam combination information and support multi-beam transmission.
-
公开(公告)号：US10536980B2
公开(公告)日：2020-01-14
申请号：US14780975
申请日：2014-04-02
Inventor： Yali Zhao , Jiamin Liu
Abstract: A method, device and system for interacting link information, which are used for solving the problem that at present there is no solution for a network side to learn the link information about a terminal supporting D2D communications and how to distinguish D2D link information from D2N link information. A link information reporting method in the embodiments of the present invention comprises: a terminal supporting D2D communications determining link information which is required to be reported to a network side, wherein the link information comprises D2D link information and/or D2N link information; and the terminal sending the determined link information to the network side on a D2N link, and indicating a link corresponding to the link information to the network side. Using the method in the embodiments of the present invention enables the network side to learn the link information about the terminal supporting the D2D communications and to distinguish whether the received link information is for the D2D link or the D2N link, so that the network side can more accurately manage and schedule the D2D link and the D2N link.
-
公开(公告)号：US20190357105A1
公开(公告)日：2019-11-21
申请号：US16476251
申请日：2018-02-05
Inventor： Dajun ZHANG , Jiamin LIU
Abstract: A method and apparatus for reducing interruption delay, and a user device. The method is: in response to an anchor point change operation, a source main network entity of a source network side in a mobile communication network initiates an anchor point change request to a target main network entity of a target network side; on the basis of the received anchor point change request, the target main network entity configures and obtains target network side configuration parameters; on the basis of the received target network side configuration parameters, the source main network entity generates a radio resource control message for the target network side; the target main network entity obtains an anchor point reconstruction indication message generated and transmitted by a multi-connection user device on the basis of the radio resource control message, and enters a target network side configuration effective state for target network side reconstruction.
-
公开(公告)号：US20190356459A1
公开(公告)日：2019-11-21
申请号：US16476120
申请日：2018-02-28
Inventor： Lei WANG , Ekpenyong TONY , Xueming PAN , Fang-Chen CHENG
Abstract: The present invention relates to the technical field of communications, and specifically relates to a method and device for determining the initial positions of a downlink data channel. The present invention solves the problem of determining the initial positions in the time domain of a downlink data channel when the resources occupied by a downlink control channel in the time domain are variable. The method comprises: a base station transmits to a terminal a generated indication signaling, and the terminal determines, on the basis of the received indication signaling, the time domain initial positions of the downlink data channel in L downlink TTIs. With said method, when the downlink control channel only appears in a part of the positions in a frequency domain or does not appear at all, and when the downlink control channel does not occupy the complete downlink control area in the time domain or the resources occupied by the downlink control channel in the time domain are variable, the base station can still accurately notify the terminal the time domain initial positions of the downlink data channel, so that the terminal can accurately receive downlink data, thereby enhancing the efficiency and reliability of the terminal reception of downlink data, and further enhancing the spectrum efficiency as well as the user experience.
-
公开(公告)号：US20190335364A1
公开(公告)日：2019-10-31
申请号：US16475950
申请日：2018-02-12
Inventor： Jiamin LIU , Fangli XU
IPC: H04W36/00
Abstract: A method for processing information and a device for processing information are provided. The method for processing information is applied to a first node. The method includes: receiving, by the first node, an indication message from a network side, wherein the indication message indicates a user equipment under the first node to hand over to a second node; and negotiating, by the first node, with the second node to reserve radio link layer control protocol (RLC) status information and cached data of all bearers of the user equipment, so that the second node provides a continuing data service to the user equipment based on the reserved information.
-
-
-
-
-
-
-
-
-
Search Results
1197
records
(took 0.032 seconds)
