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公开(公告)号：US11831379B2
公开(公告)日：2023-11-28
申请号：US17873580
申请日：2022-07-26
发明人： Jianguo Wang , Yongxing Zhou , Leiming Zhang
IPC分类号： H04B7/06 , H04N19/124 , G06F17/16 , H04B7/0413
CPC分类号： H04B7/0626 , H04B7/0634 , H04B7/0639 , G06F17/16 , H04B7/0413 , H04N19/124
摘要： The present disclosure relates to methods for feeding back channel state information, user equipment, and base stations. One example method includes receiving a reference signal sent by a base station, selecting a precoding matrix W from a codebook according to the reference signal, where a column vector of the precoding matrix W may be expressed as α[vejϕv]T, v=[1 ejθ], and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the precoding matrix W.
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公开(公告)号：US10999038B2
公开(公告)日：2021-05-04
申请号：US16504036
申请日：2019-07-05
发明人： Leiming Zhang , Yifan Liu , Ming Lei
摘要： A method for configuring a resource of a downlink measurement reference signal and an apparatus are disclosed. In the method, the base station may notify a terminal device of a resource pool by using configuration information of the resource pool that is determined based on the basic pattern or available resources, so that resource configuration of a downlink measurement reference signal is implemented.
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公开(公告)号：US10917146B2
公开(公告)日：2021-02-09
申请号：US16567882
申请日：2019-09-11
发明人： Kunpeng Liu , Jianghua Liu , Leiming Zhang
IPC分类号： H04B7/0417 , H04B7/06 , H04B7/0452 , H04L1/20 , H04B7/0456 , H04L5/00 , H04W24/08
摘要： Embodiments of the present invention provide a channel measurement and feedback method, a network device, and a system, and relate to the field of communications technologies. The method includes: receiving, by a first network device, pilot port configuration information sent by a second network device, where the pilot port configuration information is used to describe at least two pilot ports; measuring, by using the at least two pilot ports, a pilot signal sent by the second network device, and determining first information, where the first information includes at least one of second information of the first network device or third information of a third network device when it is assumed that the first network device and the third network device communicate with the second network device by performing spatial multiplexing on a same time frequency resource.
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公开(公告)号：US10912036B2
公开(公告)日：2021-02-02
申请号：US16446094
申请日：2019-06-19
发明人： Yifan Liu , Ming Lei , Leiming Zhang
摘要： Embodiments of this application provide a downlink transmission method, a base station, and a terminal device. The method includes: dividing, by a base station, to-be-transmitted data into at least two sets, and configuring a transmit power for each of the at least two sets; and sending, by the base station, data in each set to a terminal device at the transmit power configured for each set. In the embodiments of this application, the to-be-transmitted data is divided into the at least two sets, a transmit power is configured individually for each set, and the data in each set is sent to the terminal device at the transmit power configured for each set.
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公开(公告)号：US10892865B2
公开(公告)日：2021-01-12
申请号：US15729400
申请日：2017-10-10
发明人： Kunpeng Liu , Leiming Zhang , Qiang Wu
摘要： A method includes: obtaining, by UE, a reference signal resource mapping diagram, and obtaining a reference signal according to the reference signal resource mapping diagram; performing, by the UE, channel measurement according to the reference signal to determine channel state information, and feeding back the channel state information to a base station, where the reference signal resource mapping diagram is a location to which a time-frequency resource of the reference signal is mapped, the reference signal resource mapping diagram is a second reference signal resource mapping diagram which comprises at least two first reference signal resource mapping diagram.
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公开(公告)号：US10791504B2
公开(公告)日：2020-09-29
申请号：US15716763
申请日：2017-09-27
发明人： Kunpeng Liu , Yongxing Zhou , Leiming Zhang
摘要： A wireless access method and apparatus, the method including sending N first signal sets on N first resources, where N is an integer greater than 1, receiving Z response signals from a terminal for the N first signal sets, where each response signal of the response signals comprises indication information of a resource on which the respective first signal set of the N first signal sets is located, Z is an integer greater than or equal to 1, and Z is less than or equal to N, and sending M second signal sets on M second resources according to the Z response signals, where M is an integer greater than or equal to 1, and each second signal set of the M second signal sets corresponds to at least one of the N first signal sets.
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公开(公告)号：US10778297B2
公开(公告)日：2020-09-15
申请号：US16272428
申请日：2019-02-11
发明人： Kunpeng Liu , Leiming Zhang , Jianghua Liu
IPC分类号： H04B7/0456 , H04B7/0417 , H04B7/06 , H04L1/06 , H04B7/04 , H04L1/00
摘要： A signal transmission method, system and device are described. When measuring a reference signal and determining channel quality, a user equipment (UE) obtains a difference between codeword-to-CSI-RS mapping relationships by using a channel quality measurement model. The UE, using a measurement, calculates an optimized mapping relationship. The UE determines at least one mapping relationship from the mapping relationships, to adjust a codeword-to-CSI-RS mapping relationship of a channel.
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公开(公告)号：US10763944B2
公开(公告)日：2020-09-01
申请号：US16444679
申请日：2019-06-18
发明人： Leiming Zhang , Ming Lei , Yifan Liu
IPC分类号： H04B7/06 , H04B7/0408 , H04B7/0456 , H04B7/08 , H04W72/04
摘要： Embodiments of the present invention relate to a transmission method using a dynamically adjusted beam set, a base station, and a terminal. The method includes: sending, by the base station, first indication information to a terminal using first layer signaling, where the first indication information indicates a first beam set; sending, by the base station, second indication information to the terminal using second layer signaling, where the second indication information indicates at least one beam in the first beam set; and sending, by the base station, data to the terminal using the at least one beam.
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公开(公告)号：US10715239B2
公开(公告)日：2020-07-14
申请号：US16599877
申请日：2019-10-11
发明人： Jianguo Wang , Yongxing Zhou , Leiming Zhang
IPC分类号： H04B7/06 , H04N19/124 , G06F17/16 , H04B7/0413
摘要： The present disclosure relates to methods for feeding back channel state information, user equipment, and base stations. One example method includes receiving a reference signal from a base station, selecting a precoding matrix W from a codebook according to the reference signal, and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix W.
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公开(公告)号：US10568042B2
公开(公告)日：2020-02-18
申请号：US16272522
申请日：2019-02-11
发明人： Xinqian Xie , Zhiheng Guo , Xingqing Cheng , Leiming Zhang
摘要： A data transmission method includes: allocating, based on a power ratio value of near user equipment to far user equipment in two paired user equipments, a transmit power to each of the near user equipment and the far user equipment, where the power ratio value is a ratio in a first ratio set, at least one ratio in the first ratio set can be selected from a second ratio set. A plurality of power ratio values of near user equipment to far user equipment in two paired user equipments can be provided.
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