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公开(公告)号：US10383108B2
公开(公告)日：2019-08-13
申请号：US15485749
申请日：2017-04-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Teyan Chen , Sheng Liu
Abstract: The present invention provides a data interference cancellation method, a transmit end, a receive end, and a system. The method includes allocating, by a transmit end, a corresponding downlink transmission resource to each transmission group, where at least one transmission group includes at least two transmit antennas and separately sending, by the transmit end, downlink data on the downlink transmission resource corresponding to each transmission group.
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公开(公告)号：US10154513B2
公开(公告)日：2018-12-11
申请号：US15217431
申请日：2016-07-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hong Cheng , Sheng Liu , Teyan Chen
Abstract: Embodiments of the present invention relate to a terminal scheduling method, a station, and a terminal. The method includes: sending, by a first station, a first notification message to a first terminal that is also in a first service set, where the first notification message is used to instruct the first terminal to send a sounding signal; receiving, by the first station, mutual interference information sent by a second terminal, where the mutual interference information includes a signal parameter value used to represent that signal interference is generated between the second terminal and the first terminal and identifier information used to determine the first terminal that sends the sounding signal, and the mutual interference information is sent if the second terminal obtains the sounding signal by means of listening; and performing, by the first station, scheduling processing on the first terminal and the second terminal according to the signal parameter value and the identifier information.
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公开(公告)号：US10153889B2
公开(公告)日：2018-12-11
申请号：US14529502
申请日：2014-10-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hong Cheng , Sheng Liu , Yinggang Du , Rui Wang
Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.
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公开(公告)号：US10057087B2
公开(公告)日：2018-08-21
申请号：US15448915
申请日：2017-03-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Sheng Liu
CPC classification number: H04L25/0228 , H04B7/0413 , H04L25/0204 , H04L25/023 , H04L27/2613
Abstract: Embodiments of the present invention provide a channel estimation method, a communications node, and a communications system. The method includes: obtaining a preamble in a signal packet sent by a first communications node, where the preamble includes at least a first field and a second field, a subcarrier of an orthogonal frequency division multiplexing OFDM symbol of the first field is used to carry a first reference signal, the first reference signal is a predetermined signal that is known to both a second communications node and the first communications node, a subcarrier of an OFDM symbol of the second field is used to carry useful information, and the useful information is physical layer control information and/or data; and obtaining, by using the first field and the second field, a first channel estimate, of each spatial flow, on all subcarriers of a multiple-input multiple-output transmission frequency band.
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公开(公告)号：US09973224B2
公开(公告)日：2018-05-15
申请号：US15388968
申请日：2016-12-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Teyan Chen
CPC classification number: H04B1/1027 , H04B1/10 , H04B1/109 , H04B1/123 , H04B1/525 , H04B7/15585 , H04L27/26 , H04W84/042 , H04W84/12
Abstract: Embodiments of the present invention provide an interference cancellation apparatus and method. The method includes: receiving a radio frequency receive signal by using a main receive antenna; canceling a first-type self-interference component in the radio frequency receive signal according to a radio frequency reference signal, to generate a first processed signal; acquiring the reconstructed self-interference signal according to a self-interference channel parameter and the radio frequency reference signal; canceling a second-type self-interference component in the first processed signal according to the reconstructed self-interference signal to generate a second processed signal; performing down-conversion processing on the second processed signal to generate a third processed signal; performing analog to digital conversion on the third processed signal to generate a digital signal; and acquiring a digital baseband reference signal, and performing self-interference channel estimation according to the digital baseband reference signal and the digital signal to acquire the self-interference channel parameter.
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Patent Agency Ranking
56.发明申请公开(公告)号：US20170251458A1
公开(公告)日：2017-08-31
申请号：US15593533
申请日：2017-05-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jun Luo , Jiayin Zhang , Yingpei Lin , Phillip Barber , Le Liu , Sheng Liu
CPC classification number: H04W72/042 , H04L1/0003 , H04L1/0009 , H04L27/2602 , H04W72/00 , H04W72/1289 , H04W84/12
Abstract: A resource indication method in a wireless local area network is provided, where the method includes generating, by an access point, a data frame that includes a preamble, where the preamble includes a signaling indication part B (SIG-B), the SIG-B includes a common part and a user part following the common part. The common part is used to indicate a quantity of scheduled stations, identification information of the scheduled station, and a location of communication resource information of the scheduled station in the user part, the user part is used to indicate the communication resource information of the scheduled station, and the communication resource information includes resource indication information, MCS information of a data part, spatial flow quantity information, or power control information; and sending the data frame.
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公开(公告)号：US20170223688A1
公开(公告)日：2017-08-03
申请号：US15485749
申请日：2017-04-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Teyan Chen , Sheng Liu
IPC: H04W72/04 , H04B17/345 , H04L5/00 , H04W72/08 , H04B7/06
CPC classification number: H04W72/044 , H04B7/06 , H04B7/0691 , H04B7/08 , H04B17/345 , H04L5/0053 , H04W72/082
Abstract: The present invention provides a data interference cancellation method, a transmit end, a receive end, and a system. The method includes allocating, by a transmit end, a corresponding downlink transmission resource to each transmission group, where at least one transmission group includes at least two transmit antennas and separately sending, by the transmit end, downlink data on the downlink transmission resource corresponding to each transmission group.
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公开(公告)号：US09693378B2
公开(公告)日：2017-06-27
申请号：US14528651
申请日：2014-10-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Sheng Liu , Rongdao Yu , Rui Wang
IPC: H04L25/03 , H04W76/02 , H04W72/04 , H04B7/0413 , H04B7/0456 , H04W52/24 , H04B7/026 , H04W52/38 , H04W52/14 , H04W52/42
CPC classification number: H04W76/023 , H04B7/026 , H04B7/0413 , H04B7/0456 , H04W52/143 , H04W52/242 , H04W52/383 , H04W52/42 , H04W72/04 , H04W76/14
Abstract: Embodiments of the present invention provide a MIMO wireless communication system, a MIMO transmission method, and an apparatus, which relate to the field of communications technologies and are invented to effectively improve transmission efficiency and decrease a transmission delay. The MIMO wireless communication system includes: a base station, a first user equipment, and at least one second user equipment, where the first user equipment performs cellular uplink communication with the base station, and performs device-to-device communication with the at least one second user equipment, and the same time-frequency resource is used in the cellular uplink communication between the first user equipment and the base station and the device-to-device communication between the first user equipment and the second user equipment. The present invention is applicable to wireless communication technologies.
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公开(公告)号：US09661673B2
公开(公告)日：2017-05-23
申请号：US15233683
申请日：2016-08-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Rongdao Yu , Sheng Liu
CPC classification number: H04W76/14 , H04B7/2656 , H04W72/02 , H04W72/0413 , H04W72/0446 , H04W72/046 , H04W72/082
Abstract: The present invention provides a D2D communication method and a D2D communication device. The method includes: determining a second time slot for transmitting D2D data according to a first time slot for transmitting D2D signaling to a D2D receiver and a synchronous transmission relationship between the D2D signaling and the D2D data, the second time slot being after the first time slot; determining a third time slot for transmitting uplink control information in cellular communication according to the second time slot, the uplink control information being used for indicating an uplink radio resource in the second time slot, and the third time slot being before the second time slot; demodulating the uplink control information in the third time slot to acquire the uplink radio resource in the second time slot; multiplexing the uplink radio resource in the second time slot to perform D2D communication with the D2D receiver.
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公开(公告)号：US09468009B2
公开(公告)日：2016-10-11
申请号：US14601734
申请日：2015-01-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Rui Wang , Sheng Liu , Yinggang Du
CPC classification number: H04W72/082 , H04B7/046 , H04L5/04 , H04L27/3488 , Y02D70/122 , Y02D70/444
Abstract: A signal processing method and related equipment are provided, which are used for reducing the number of antennas needed by a proximal user equipment to detect a low power signal. The method comprises: adjusting a pre-coding vector of a high power data stream to allow a product of the pre-coding vector and an effective receiving channel for a low power data stream equal to a constant; performing superposition coding on the low power data stream and the adjusted high power data stream; and sending the superposition-coded data stream to user equipments, wherein the user equipments comprise a user equipment at a center of a cell and a user equipment at an edge of the cell, the high power data stream is an interference while the low power data stream is desirable for the user equipment at the center of the cell.
Abstract translation: 提供了一种信号处理方法和相关设备，用于减少近端用户设备所需的天线数量以检测低功率信号。 该方法包括：调整高功率数据流的预编码矢量，以允许等于常数的低功率数据流的预编码矢量和有效接收信道的乘积; 对低功率数据流和调整后的高功率数据流进行叠加编码; 并且将叠加编码数据流发送给用户设备，其中用户设备包括小区中心的用户设备和小区边缘的用户设备，高功率数据流是干扰，而低功率数据 流对于小区中心的用户设备是期望的。
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