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公开(公告)号：US11419070B2
公开(公告)日：2022-08-16
申请号：US16323242
申请日：2017-07-17
Inventor： Rakesh Tamrakar , Runhua Chen , Qiubin Gao , Qiuping 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：US11323170B2
公开(公告)日：2022-05-03
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：US11152983B2
公开(公告)日：2021-10-19
申请号：US16476507
申请日：2018-02-07
Inventor： Xin Su , Qiubin Gao , Chuanjun Li , Mengjun Wang , Rakesh Tamrakar , Runhua Chen , Hui Li , Qiuping Huang
IPC: H04B7/0456 , H04L5/00 , H04B7/06 , H04L1/00 , H04L5/10
Abstract: The present disclosure provides a data transmission control method, a network side device and a terminal side device. The data transmission control method includes: mapping, by a network side device, a codeword to at least one data layer; mapping, by the network side device, the at least one data layer to at least one QCL group, the QCL group being an antenna port group established in accordance with a QCL relationship among antenna ports; and performing, by the network side device, data transmission in accordance with the QCL group. According to the present disclosure, it is able to perform the data transmission through multi-array antennae.
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公开(公告)号：US11128423B2
公开(公告)日：2021-09-21
申请号：US16477135
申请日：2018-02-02
Inventor： Xin Su , Qiubin Gao , Tamrakar Rakesh , Runhua Chen , Hui Li , Chuanjun Li , Qiuping Huang , Mengjun Wang
IPC: H04B7/0456 , H04B7/06 , H04B7/08 , H04L5/00 , H04L25/02 , H04W8/24 , H04W24/10 , H04W72/04 , H04W88/02 , H04W88/08 , H04W88/12 , H04W92/10
Abstract: Disclosed are a beam forming and transmission method and a network device, for resolving the defects of limited flexibility and performance in prior art methods for improving the quality of channel estimation. The method comprises: a network side determining the configuration information of physical resource block (PRB) bundling parameters, the time domain configuration information of the configuration information of said PRB bundling parameters being configurable; the network side sending the configuration information of the PRB bundling parameters to a terminal so that after having received the configuration information of the PRB bundling parameters, the terminal uses a precoding mode corresponding to the configuration information of the PRB bundling parameters to perform channel estimation and demodulation.
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公开(公告)号：US11039470B2
公开(公告)日：2021-06-15
申请号：US16606172
申请日：2018-04-10
Inventor： Runhua Chen , Qiubin Gao , Hui Li
Abstract: The message decoding method in accordance with embodiments of the present disclosure includes: receiving, by a receiving end device, a second message associated with a first message from a transmitting end device; determining, by the receiving end device, a target receiver parameter for decoding the first message in accordance with the second message; and decoding, by the receiving end device, the first message from the transmitting end device in accordance with the target receiver parameter.
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Patent Agency Ranking
公开(公告)号：US11005550B2
公开(公告)日：2021-05-11
申请号：US16623369
申请日：2018-05-15
Inventor： Qiuping Huang , Tamrakar Rakesh , Runhua Chen , Qiubin Gao , Xin Su , Hui Li , Mengjun Wang , Chuanjun Li
IPC: H04L12/26 , H04B7/06 , H04B7/0417 , H04B7/0456 , H04L5/00 , H04L25/02 , H04W72/04
Abstract: Embodiments of the present application provide a method and apparatus for transmitting downlink control information (DCI), for solving the technical problem that neither the existing protocol nor the communication system has a method for encoding sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information. The method comprises: a network device determines the number of candidate values of preset indication information borne by a preset indication field in the downlink control information (DCI), the preset indication information comprising one of or a combination of two of the sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information; the network device determines the length of the preset indication field according to the number of candidate values of the preset indication information, and encodes the preset indication information according to the length to generate the DCI; and the network device sends the DCI to the UE.
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公开(公告)号：US10931339B2
公开(公告)日：2021-02-23
申请号：US16638265
申请日：2018-07-10
Inventor： Qiuping Huang , Qiubin Gao , Tamrakar Rakesh , Xin Su , Runhua Chen , Hui Li , Mengjun Wang
IPC: H04B7/0456
Abstract: Disclosed are a method and device for determining an uplink transmission codebook. The method includes: transmitting by the terminal data transmission capability information to a base station, the data transmission capability information being used to characterize a data transmission capability that current antennas of the terminal can support; receiving by the terminal codebook indication information transmitted by the base station, the codebook indication information including codebook information used for indicating the terminal to perform uplink transmission, and/or information used for characterizing that the base station successfully decodes or fails to decode the data transmission capability information; and determining by the terminal the codebook corresponding to the uplink transmission, according to the codebook indication information.
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公开(公告)号：US10790890B2
公开(公告)日：2020-09-29
申请号：US16086009
申请日：2016-12-29
Inventor： Wenhong Chen , Qiubin Gao , Hui Li , Runhua Chen , Tamrakar Rakesh
IPC: H04B7/06 , H04L5/00 , H04B7/0456
Abstract: Disclosed in the present invention are a channel state information (CSI) feedback method, a precoding method, a terminal and a base station. The channel state information (CSI) feedback method disclosed in the present invention comprises: a terminal selects a channel state information-reference signal (CSI-RS) resource or a CSI-RS port on a convention subband from among a CSI-RS resource set as configured in a base station according to downlink channel information; the terminal measures a channel quality indicator (CQI) according to the selected CSI-RS resource or CSI-RS port and a precoding matrix set corresponding to the selected CSI-RS resource or CSI-RS port, wherein the precoding matrix set includes one or more preceding matrices, and a physical resource on the convention subband corresponds to a precoding matrix in the precoding matrix set; and the terminal feeds back the CQI and indication information of the selected CSI-RS resource or CSI-RS port. According to the present invention, the matching degree between CSI and channel state may be improved.
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公开(公告)号：US10778311B2
公开(公告)日：2020-09-15
申请号：US15774268
申请日：2016-10-26
Inventor： Qiubin Gao , Shanzhi Chen , Runhua Chen , Wenhong Chen , Hui Li , Tamrakar Rakesh , Shaohui Sun
IPC: H04B7/06 , H04L1/06 , H04B7/04 , H04B7/0417 , H04B7/0456
Abstract: Disclosed are channel state information feedback and data transmission method and apparatus. The method comprises: determining a first codebook on a base station side, the first codebook being a set composed of precoding matrixes; determining a first codebook on a terminal side, the first codebook being a set composed of precoding matrixes; calculating channel state information according to the first codebooks; and feeding back the channel state information to a base station. Data transmission is performed on the terminal on the base station side, and in the data transmission process, some or all of the precoding matrixes in the first codebooks are utilized to perform processing, over a resource allocated to a terminal, on data to be transmitted. By using the present application, precoding matrixes needed for open-loop AMMO calculation can be determined, traversing of whole space is avoided, difficulties in system design and implementation are reduced, and the system performance is improved.
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公开(公告)号：US10778307B2
公开(公告)日：2020-09-15
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
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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