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公开(公告)号：US20230026859A1
公开(公告)日：2023-01-26
申请号：US17959028
申请日：2022-10-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming GAN , Jingjing HUANG , Dandan LIANG , Tao WU
IPC: H04B7/0491 , H04B7/06 , H04B7/08 , H04L5/14
Abstract: This application provides a communication method and an apparatus. One example method includes receiving, by a first device in a first device set, a measurement signal sent by a second device; and sending, by the first device, a feedback signal based on the measurement signal, wherein the feedback signal carries information that indicates, to a third device, a device that is in the first device set and that is paired with the second device, and the feedback signal carries a device identifier of the second device.
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公开(公告)号：US20210075663A1
公开(公告)日：2021-03-11
申请号：US16948569
申请日：2020-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao WU
Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4m to-be-sent higher order modulation symbols on different carriers of two antennas. The to-be-sent higher order modulation symbols include some or all to-be-sent information bits. Therefore, the same signal can be simultaneously sent on different carriers of multiple antennas, and frequency diversity and space diversity are implemented, so that transceiving performance of data transmission is improved.
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公开(公告)号：US20200052772A1
公开(公告)日：2020-02-13
申请号：US16657094
申请日：2019-10-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: This application provides a data transmission method and network device. The method includes: receiving first feedback information that is sent by each terminal and that includes a first antenna mode of the terminal; categorizing the at least two terminals into M groups based on the first antenna mode of each terminal; sending, by the network device, a second training frame to each terminal in each group, receiving second feedback information that is sent by each terminal in each group and that includes a second antenna mode of the terminal; regrouping, by the network device, the terminals in each group based on the second antenna mode of each terminal in the group, and determining an antenna mode of each group obtained through the regrouping; and sending, by the network device, first downlink data to each terminal based on the antenna mode of each group, where the first downlink data includes a superposition of first data of all the terminals in the group.
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公开(公告)号：US20190372821A1
公开(公告)日：2019-12-05
申请号：US16546159
申请日：2019-08-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tao WU
Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and the method includes: modulating to-be-sent information bits according to a lower order constellation diagram, and generating 4m lower order modulation symbols; multiplying a precoding matrix Q by a column vector including every four lower order modulation symbols in the 4m lower order modulation symbols, to obtain 4m to-be-sent higher order modulation symbols corresponding to a higher order constellation diagram; and respectively and correspondingly sending the 4m to-be-sent higher order modulation symbols on different carriers of two antennas. The to-be-sent higher order modulation symbols include some or all to-be-sent information bits. Therefore, the same signal can be simultaneously sent on different carriers of multiple antennas, and frequency diversity and space diversity are implemented, so that transceiving performance of data transmission is improved.
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公开(公告)号：US20170111902A1
公开(公告)日：2017-04-20
申请号：US15395571
申请日：2016-12-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W72/04
CPC classification number: H04W72/0413 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04W72/0486
Abstract: A channel feedback information transmission method is disclosed. A terminal performs channel estimation on a subcarrier on which a downlink pilot is located, and obtains first channel information; the terminal performs a channel interpolation calculation on a channel of a data subcarrier according to the first channel information, and obtains second channel information according to a result of the channel interpolation calculation; the terminal determines a feedback factor; the terminal obtains third channel information from the second channel information according to the feedback factor, where an amount of the third channel information is less than an amount of the second channel information; and the terminal feeds back the third channel information to a base station. Some channel information is selected and fed back by means of a feedback factor.
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Patent Agency Ranking
公开(公告)号：US20220209886A1
公开(公告)日：2022-06-30
申请号：US17696420
申请日：2022-03-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao WU , Teyan CHEN
Abstract: Embodiments of this application disclose a data transmission method, apparatus, and system in backscatter communication, to improve spectrum usage efficiency of data. An embodiment of this application provides a data transmission method in backscatter communication, including: generating a first frame, where the first frame carries first data and second data, the first data and the second data in the first frame use different modulation schemes, the first data is sent to a first tag, and the second data is sent to a second tag; and sending the first frame to the first tag and the second tag.
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公开(公告)号：US20240089214A1
公开(公告)日：2024-03-14
申请号：US18514378
申请日：2023-11-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao WU , Lei HAN , Hewen ZHENG , Jian YAN , Xiangyu GONG , Xinyi SONG
IPC: H04L47/6275 , H04L45/24 , H04L47/30
CPC classification number: H04L47/6275 , H04L45/24 , H04L47/30
Abstract: This application describes examples of a data processing method and apparatus. In one example, the method includes: If a target buffer that is corresponding to a target priority and that is on a network device reaches a first threshold, the network device sends a pause message to an upstream device, so that the upstream device stops sending a first data packet corresponding to the target priority. If a duration in which the network device stops buffering a second data packet is greater than a preset duration, and the target buffer falls back below a second threshold, the network device sends a sending resumption message to the upstream device, so that the upstream device sends a third data packet corresponding to the target priority.
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18.发明公开公开(公告)号：US20230198722A1
公开(公告)日：2023-06-22
申请号：US18068439
申请日：2022-12-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming GAN , Shimon SHILO , Leonid EPSTEIN , Oded REDLICH , Xun YANG , Tao WU
IPC: H04L5/00
CPC classification number: H04L5/0053 , H04L5/0007 , H04L5/0044 , H04L27/2603
Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.
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公开(公告)号：US20220007386A1
公开(公告)日：2022-01-06
申请号：US17478305
申请日：2021-09-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tao WU , Teyan CHEN , Jian YU , Jia JIA , Yingzhuang LIU
Abstract: Embodiments of this application relate to the wireless transmission field, and disclose a data transmission method and apparatus. The method includes: A transmit end generates a data packet; and the transmit end sends the data packet to a receive end, where the data packet includes at least two pieces of video service data having different priorities, and the pieces of video service data having different priorities are carried on different communications resources for transmission.
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20.发明申请公开(公告)号：US20200213170A1
公开(公告)日：2020-07-02
申请号：US16811616
申请日：2020-03-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ming GAN , Shimon SHILO , Leonid EPSTEIN , Oded REDLICH , Xun YANG , Tao WU
Abstract: A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.
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