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公开(公告)号：US20200099461A1
公开(公告)日：2020-03-26
申请号：US16698466
申请日：2019-11-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dageng CHEN , Shibin GE , Xiaoyan BI
IPC: H04J11/00
Abstract: This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.
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公开(公告)号：US20190165914A1
公开(公告)日：2019-05-30
申请号：US16263328
申请日：2019-01-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dageng CHEN , Yong LIU , Yi WANG
Abstract: Embodiments of the present disclosure relate to the communications field, and provide a signal transmission method and apparatus, which can effectively resolve a resource waste problem of user data resource elements and improve system power utilization. The method includes: determining, by a base station, a first parameter value of a user data resource element (RE), an initial parameter value of a demodulation reference signal resource element (DMRS RE), and a compensation parameter value of the DMRS RE; determining, by the base station according to the initial parameter value and the compensation parameter value, a second parameter value required for transmitting a DMRS; and transmitting, by the base station, the DMRS, the user data, and the compensation parameter value to user equipment, so that the user equipment demodulates the user data.
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公开(公告)号：US20180367274A1
公开(公告)日：2018-12-20
申请号：US16053185
申请日：2018-08-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hongzhe SHI , Jin LIU , Dageng CHEN , Xiaoyan BI
CPC classification number: H04L5/0048 , H04L1/1614 , H04L5/00 , H04L5/0023 , H04L5/0053
Abstract: This application discloses a method and an apparatus for transmitting a pilot signal, so that more flexible resource configuration can be achieved, thereby improving resource usage. The method includes: determining, by a transmit end device based on prestored N pilot patterns, a target time-frequency resource for transmitting a pilot signal, where the target time-frequency resource corresponds to a total quantity of layers of a to-be-transmitted data stream, the N pilot patterns are different from each other, and N is a natural number greater than or equal to 1; and sending, by the transmit end device, indication information to a receive end device, where the indication information is used to instruct the receive end device to transmit the pilot signal to the transmit end device based on the target time-frequency resource.
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公开(公告)号：US20180110050A1
公开(公告)日：2018-04-19
申请号：US15821895
申请日：2017-11-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jin LIU , Ye WU , Dageng CHEN
CPC classification number: H04W72/0446 , H04L1/1671 , H04L1/18 , H04L5/0055 , H04L5/1469
Abstract: Implementation manners of the present disclosure disclose a radio frame transmission method, including: generating a radio frame, where the radio frame includes at least one first subframe, the at least one first subframe includes a downlink transmission field and an uplink transmission field, the downlink transmission field is used to carry a downlink signal, the uplink transmission field is used to carry an uplink signal, the downlink transmission field includes NDL symbols, the uplink transmission field includes NUL symbols, and a sum of NDL and NUL is less than or equal to a quantity of all symbols included in the first subframe; and sending the radio frame to a receive end, so that the receive end transmits a downlink signal according to the downlink transmission field and transmits an uplink signal according to the uplink transmission field.
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公开(公告)号：US20190280754A1
公开(公告)日：2019-09-12
申请号：US16423185
申请日：2019-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaoyan BI , Dageng CHEN , Jian LI
Abstract: Embodiments of the present invention provide a channel state information obtaining method and a device, where the method includes: determining, by a base station according to radio resource usage, a special timeslot in a frequency range used for downlink data transmission; sending special-timeslot configuration information to user equipment, where the special-timeslot configuration information is used to configure the user equipment to send the uplink physical signal over a downlink frequency band in the special timeslot; and performing channel estimation according to the uplink physical signal after receiving the uplink physical signal sent by the user equipment, to obtain channel state information. Compared with a technical solution in the prior art in which user equipment obtains channel state information and then feeds back the channel state information to a base station, system overheads caused in obtaining, by the base station, the channel state information are reduced.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190081682A1
公开(公告)日：2019-03-14
申请号：US16188791
申请日：2018-11-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lu WU , Wei HAN , Peng SHANG , Jin LIU , Xiaoyan BI , Shibin GE , Dageng CHEN
IPC: H04B7/06 , H04L5/00 , H04B7/0456
CPC classification number: H04B7/0626 , H04B7/0478 , H04B7/0482 , H04B7/0617 , H04B7/065 , H04L5/0048
Abstract: A radio access node (RAN) and method of operation of the RAN are provided. The RAN includes a massive multiple-input-multiple-output (MIMO) antenna array. The RAN includes a processing hardware configured to carry out a communication method that includes receiving a digital data stream for transmission on a time-frequency resource. The RAN precodes the digital data stream using a digital beamforming stage to render a precoded digital downlink data stream for downlink data stream signal transmission to a user equipment. The digital beamforming stage includes a first precoding stage configured according to a long-term matrix, and a second precoding stage configured according to a short-term matrix. The RAN is further configured to generate a downlink data stream transmission signal to the user equipment in accordance with the precoded digital downlink data stream.
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公开(公告)号：US20180278388A1
公开(公告)日：2018-09-27
申请号：US15995057
申请日：2018-05-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jin LIU , Dageng CHEN , Xiaoyan BI , Yan CHEN
Abstract: Embodiments of the present application disclose data frame implementation methods and apparatus. In one embodiment, a method includes: configuring a data frame used for radio signal transmission, where the data frame includes at least two subframes, each subframe has a fixed length, the at least two subframes may be mapped to at least two frequency bands with different subcarrier spacings, and a quantity of symbols included in each subframe is corresponding to a subcarrier spacing of a frequency band to which the subframe is mapped. According to embodiments of the present application, various service requirements of 5G mobile communication can be met and a service level of the 5G mobile communication can be improved.
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公开(公告)号：US20130343346A1
公开(公告)日：2013-12-26
申请号：US13971301
申请日：2013-08-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dageng CHEN , Jun NI , Xiaoyan BI , Yi WANG
IPC: H04W72/08
CPC classification number: H04W72/082 , H04J11/0023 , H04L1/0026 , H04L5/005 , H04L5/0073 , H04L25/0204 , H04L25/0224 , H04W36/30 , H04W72/1231 , H04W88/085
Abstract: Embodiments of the present invention disclose a method and apparatus for managing a user equipment. A long term evolution distributed antenna system LTE DAS cell including multiple antenna units AUs is divided into multiple portions, where the portion corresponds to one or multiple AUs; a resource is scheduled for a UE by taking the portion as a unit and interference control and mobility management are performed in the cell. By applying the present invention, efficiency during the interference management and handover may be improved, and system capacity may be increased.
Abstract translation: 本发明的实施例公开了一种用于管理用户设备的方法和装置。 包括多个天线单元AU的长期演进分布式天线系统LTE DAS小区被分成多个部分，其中该部分对应于一个或多个AU; 通过将该部分作为一个单元来为UE调度资源，并且在小区中执行干扰控制和移动性管理。 通过应用本发明，可以提高干扰管理和切换期间的效率，并且可以提高系统容量。
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公开(公告)号：US20180124816A1
公开(公告)日：2018-05-03
申请号：US15852395
申请日：2017-12-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei HAN , Yalin LIU , Dageng CHEN
Abstract: Present application provides an uplink data transmission method and apparatus. The method includes: receiving a first message including transmission mode information, where the transmission mode information is used to indicate that a terminal device is capable of transmitting uplink data by using at least two contention transmission units CTUs that are in a same time interval TTI, the CTU refers to a transmission resource combining a time, a frequency, and a code domain, or a transmission resource combining a time, a frequency, and a pilot, or a transmission resource combining a time, a frequency, a code domain, and a pilot, and the uplink data transmitted by using the at least two CTUs is partially same or totally same; and sending a second message including indication information, where the indication information is used to enable the terminal device to determine, according to the indication information, a CTU for uplink data transmission.
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公开(公告)号：US20170288760A1
公开(公告)日：2017-10-05
申请号：US15625327
申请日：2017-06-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Deli QIAO , Ye WU , Dageng CHEN , Jin LIU
CPC classification number: H04B7/0665 , H04B7/0617 , H04B7/063 , H04B7/0639 , H04B7/0695 , H04L5/0048
Abstract: Embodiments of the present invention disclose a precoding information collection method and a transmission device and relate to the communications field. A specific solution is: precoding, by a transmit side, a first pilot signal according to a first precoding matrix, and sending a precoded first pilot signal to a receive side, where the first precoding matrix is the same as a precoding matrix used for current data transmission; precoding, by the transmit side, N second pilot signals according to N second precoding matrices, and sending N precoded second pilot signals to the receive side, where N is an integer greater than or equal to 1, the second precoding matrices used for precoding the second pilot signals are different from each other, and the N second precoding matrices are different from the first precoding matrix; and receiving, by the transmit side, precoding feedback information sent by the receive side.
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