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公开(公告)号：US20210328632A1
公开(公告)日：2021-10-21
申请号：US17357392
申请日：2021-06-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xin Xia , Zhenbing Zhang , Yun Liu , Lu Guan
IPC: H04B7/0456 , H04W72/04 , H04W8/24
Abstract: This application discloses a precoding method and apparatus, and an information transmission method and apparatus, and relates to the field of communications technologies, to help improve overall performance of a plurality of data streams corresponding to a same codeword. The precoding method includes: decomposing a channel matrix into a product of a matrix Q, a matrix R, and a matrix PH, where the matrix PH is a conjugate transpose matrix of a matrix P, both the matrix Q and the matrix P are unitary matrices, and the matrix R is an upper triangular matrix; and precoding to-be-sent data based on the matrix P.
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公开(公告)号：US10951451B2
公开(公告)日：2021-03-16
申请号：US16597575
申请日：2019-10-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present disclosure relates to methods, apparatus, and systems for a physical layer protocol data unit (PPDU) transmission. One example method includes generating a PPDU including a signal extension (SE) field arranged after a last orthogonal frequency division multiplexing (OFDM) symbol of a plurality of OFDM symbols, the PPDU including indication information in a high efficiency signaling field (HE-SIG), the indication information being generated based on a symbol length of the SE field and configured to indicate whether a receive end needs to adjust a calculated quantity of the plurality of OFDM symbols, and sending the PPDU to the receive end.
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73.发明授权公开(公告)号：US10932255B2
公开(公告)日：2021-02-23
申请号：US16347161
申请日：2016-11-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Example resource indication methods and apparatus are described. One example method includes determining a resource used by a terminal to send an uplink control signal by a base station. The base station sends indication information to the terminal, where the indication information is used to indicate the resource or a target parameter. The target parameter includes at least one of parameters used by the terminal to determine the resource. The described methods are applicable to the field of communications technologies.
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74.发明申请公开(公告)号：US20200266917A1
公开(公告)日：2020-08-20
申请号：US16646908
申请日：2018-05-17
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application relates to the field of wireless communications technologies, and provides an indication method, an indication determining method, a sending device, and a receiving device, to resolve a problem existing in a transmission technology solution in which a slot format is indicated by using single indication information. The indication determining method includes: receiving, by a receiving device in a first slot, first indication information and second indication information that are sent by a sending device; and determining, by the receiving device, that the first indication information indicates a slot format of the first slot, and that the second indication information indicates a slot format of a second slot, where the second slot is a slot after the first slot. This application is applicable to a scenario in which a slot format is configured for a slot.
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公开(公告)号：US10555340B2
公开(公告)日：2020-02-04
申请号：US15829252
申请日：2017-12-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yun Liu , Sheng Liu , Teyan Chen
Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet. The method additionally includes determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel. The method additionally includes determining, by using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.
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Patent Agency Ranking
公开(公告)号：US20200037308A1
公开(公告)日：2020-01-30
申请号：US16500965
申请日：2017-06-16
Applicant: Huawei Technologies Co., Ltd.
Abstract: A control channel transmission method, including receiving, by a first device, configuration information, where the configuration information indicates a time-frequency resource configured for a control channel, where the time-frequency resource comprises N symbols and M physical resource blocks (PRBs), where N is-greater than or equal to 1 and less than or equal to 12, where M is greater than or equal to 1, where the control channel comprises a demodulation reference signal (DMRS) and uplink control information (UCI), and where the M PRBs are contiguous or non-contiguous, and transmitting the DMRS on at least one of the N symbols using a target PRB, where the target PRB comprises at least one of the M PRBs.
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公开(公告)号：US10461978B2
公开(公告)日：2019-10-29
申请号：US15834435
申请日：2017-12-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Methods, apparatus, and systems for a physical layer protocol data unit (PPDU) transmission are provided. In one aspect, a method includes: generating a physical layer protocol data unit (PPDU) including a signal extension (SE) field arranged after a last orthogonal frequency division multiplexing (OFDM) symbol of a plurality of OFDM symbols, the PPDU including indication information in a high efficiency signaling field (HE-SIG), the indication information being generated based on a symbol length of the SE field and configured to indicate whether a receive end needs to adjust a calculated quantity of the plurality of OFDM symbols, and sending the PPDU to the receive end.
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公开(公告)号：US10397956B2
公开(公告)日：2019-08-27
申请号：US15829252
申请日：2017-12-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yun Liu , Sheng Liu , Teyan Chen
Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet. The method additionally includes determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel. The method additionally includes determining, by using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.
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公开(公告)号：US10164799B2
公开(公告)日：2018-12-25
申请号：US15068502
申请日：2016-03-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiongshu Yi , Chaochao Zhang , Lu Guan , Yun Liu
Abstract: The present disclosure relates to a remote radio unit (RRU), which is connected to a baseband unit (BBU) and an antenna, comprising: a service transmit channel configured to transmit a first correction signal through the antenna, and a standing wave detecting circuit associated with the service transmit channel, wherein: a working frequency of the standing wave detecting circuit is consistent with the service transmit channel, and the standing wave detecting circuit is capable of detecting a standing wave ratio of the service transmit channel and is configured to receive a correction signal looped back by the antenna, and send the correction signal looped back by the antenna to the BBU, wherein the correction signal looped back by the antenna comprises a portion of the first correction signal reflected by the antenna and is used for a calculation of a correction coefficient of the service transmit channel.
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公开(公告)号：US09654157B2
公开(公告)日：2017-05-16
申请号：US15135187
申请日：2016-04-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianjun Yang , Linfeng Xia , Weimin Chen , Yun Liu
IPC: H04B17/00 , H04B1/04 , H01Q1/12 , H04B17/318 , H04B17/336
CPC classification number: H04B1/0475 , H01Q1/1257 , H04B17/318 , H04B17/336
Abstract: The present invention relates to the field of communications, and provides a link adaptation method and device, so as to determine, according to transmission quality of a signal in a link, to perform antenna alignment and/or frequency adjustment. The method includes: detecting, by a first antenna device, an RSSI of a link between the first antenna device and a second antenna device; when it is determined that the RSSI is greater than or equal to a first RSSI threshold, detecting, by the first antenna device, an SINR of the link; and choosing, by the first antenna device according to the RSSI and the SINR, to perform frequency adjustment and/or antenna alignment with the second antenna device. Embodiments of the present invention are applied to link adaptation.
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