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公开(公告)号:US20240215066A1
公开(公告)日:2024-06-27
申请号:US18408997
申请日:2024-01-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Bo YANG , Zheng CHEN , Peng CHEN
CPC classification number: H04W74/04 , H04W74/0875 , H04W84/12
Abstract: Embodiments of this application disclose a channel access method and apparatus. The method includes: A first device determines a first frame, where the first frame includes first indication information, the first indication information indicates a first AP in at least one access point AP to perform contention access for a first traffic in a first slot, and the first traffic includes a traffic for which channel access is performed by using a priority interframe space PIFS; and the first device sends the first frame to the first AP. According to embodiments of this application, contention and a collision with another AP in a channel access process are avoided, to improve quality of service of a traffic.
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公开(公告)号:US20200374220A1
公开(公告)日:2020-11-26
申请号:US16991775
申请日:2020-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Li SHEN , Yinliang HU , Peng CHEN , Duoliang FAN , Jingmin ZHANG
IPC: H04L12/721 , H04L29/12 , H04L12/725 , H04L29/06 , H04L12/947 , H04L12/935 , H04L12/865
Abstract: This application provides a downstream packet sending method, a downstream packet forwarding method, a downstream packet sending apparatus, and a downstream packet forwarding apparatus. The downstream packet sending method in this application includes: configuring a downstream forwarding path of a downstream packet for a terminal device; generating a source MAC address based on the downstream forwarding path, where the source MAC address is used to indicate the downstream forwarding path; and sending the downstream packet to a forwarding switch, where the downstream packet includes the source MAC address. This application can reduce costs, improve efficiency, and simplify network traffic.
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公开(公告)号:US20230171744A1
公开(公告)日:2023-06-01
申请号:US18154223
申请日:2023-01-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Shengsen WANG , Yizhan NI , Peng CHEN
IPC: H04W72/02 , H04W72/0446 , H04W72/0453 , H04L27/10 , H04L5/00
CPC classification number: H04W72/02 , H04W72/0446 , H04W72/0453 , H04L27/10 , H04L5/0044 , H04W92/10
Abstract: A method for replying with a response frame, an apparatus, and an AP system. A radio frequency processing device receives a PPDU sent by an STA. The radio frequency processing device sends, to a baseband processing device by using a wired medium, a frame obtained based on the PPDU. The radio frequency processing device and the baseband processing device are remotely separated. In response to a target signal that is received by using the wired medium and that is from the baseband processing device, the radio frequency processing device generates a target field, and sends the target field to an air interface. The target field at least includes a first field of a response frame of the PPDU. The target signal is used to instruct the radio frequency processing device to immediately respond to the PPDU.
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公开(公告)号:US20230006906A1
公开(公告)日:2023-01-05
申请号:US17940189
申请日:2022-09-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Qinghui SHU , Jinming HUANG , Tianran ZHOU , Peng CHEN , Songsong GUO , Xiangzhen LI , Yan TANG , Chengcong ZHENG
IPC: H04L43/0852 , H04L47/34
Abstract: An in-situ flow detection method. When determining a transmission delay in a detection domain in a first in-situ flow detection period, a first network node may color a plurality of packets in a first service flow that are received by the first network node through a first inbound interface and determine the delay in the detection domain in the first in-situ flow detection period based on the plurality of colored packets, thereby improving the precision of the detected transmission delay in the detection domain.
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公开(公告)号:US20200008150A1
公开(公告)日:2020-01-02
申请号:US16564515
申请日:2019-09-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chong ZHU , Peng CHEN , Zhirong YANG
IPC: H04W52/02
Abstract: Example sleeping and wake-up methods and apparatuses of a master-slave network, and a power saving system of a master-slave network, are described. One example method includes obtaining running statuses of slave devices on links from a link management list. A target device is determined. The target device is a slave device whose running status is idle. If running statuses of the target slave device to an end slave device on a link on which the target slave device is located are all idle, it is determined that a sublink from the target slave device to the end slave device on the link on which the target slave device is located is a target sublink. A power saving message is sent to at least one slave device on the target sublink, so that the slave device enters a sleep and listen state when receiving the power saving message.
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公开(公告)号:US20240355509A1
公开(公告)日:2024-10-24
申请号:US18755985
申请日:2024-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Zhaoyang TANG , Long SHEN , Xianglong LIU , Peng CHEN , Baohua SUN , Gaonan ZHOU , Wei NIU
CPC classification number: H01B11/1869 , H01B11/1895 , H01Q21/0006
Abstract: A cable includes a first part and a second part. The first part includes a cable core, a metal layer, and a dielectric layer. The metal layer wraps the cable core, and the dielectric layer is sandwiched between the cable core and the metal layer. The second part includes a plurality of metal units and a dielectric unit. The plurality of metal units are spacedly disposed on the metal layer of the cable, to reduce cable's shielding on an electromagnetic wave in a specific frequency band. The cable is placed on a radiation path of an antenna. This can reduce shielding on an electromagnetic wave radiated by the antenna, to avoid distortion of an antenna pattern.
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公开(公告)号:US20220038226A1
公开(公告)日:2022-02-03
申请号:US17504653
申请日:2021-10-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: This application provides a data transmission method and apparatus. The method includes: A first access point detects a channel. If the first access point detects an idle first channel, the first access point sends a first trigger frame to at least one second access point, where the first trigger frame is used to trigger the at least one second access point to send data on the first channel after a first preset time period elapses. In this way, an existing CSMA channel detection mechanism may be compatible with the method, and a conflict caused by contention of a plurality of APs for a channel at the same time can be avoided, which helps improve network transmission efficiency, and helps improve transmission performance.
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公开(公告)号:US20200220579A1
公开(公告)日:2020-07-09
申请号:US16823859
申请日:2020-03-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Bo YANG , Wei GU , Fangchao YUAN , Peng CHEN
IPC: H04B7/024
Abstract: The present disclosure relates to signal sending methods and apparatus. One example method includes generating a first data signal based on channel state information, receiving a second data signal sent by a primary transmitter, determining a phase of the second data signal, and sending the first data signal based on a phase of a first measurement signal sent by the primary transmitter and the phase of the second data signal sent by the primary transmitter.
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公开(公告)号:US20230087939A1
公开(公告)日:2023-03-23
申请号:US17993228
申请日:2022-11-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Dongcheng PAN , Bo YANG , Peng CHEN , Yinliang HU , Bing FENG
Abstract: This application discloses channel sounding methods and communication apparatuses. One method includes: receiving, by a second access point, a user association frame from a first access point, wherein the user association frame carries identification information of a first station and is used to determine a first channel sounding result of the first station associated with the first access point, and determining, by the second access point, the first channel sounding result from a plurality of second channel sounding results based on the user association frame, wherein the plurality of second channel sounding results are obtained by the second access point by performing sounding on a plurality of channel sounding frames from a plurality of stations.
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公开(公告)号:US20210105157A1
公开(公告)日:2021-04-08
申请号:US17126741
申请日:2020-12-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Fangchao YUAN , Peng CHEN , Bo YANG
Abstract: This application discloses a channel estimation method and apparatus, a communications system, pertains to the field of communications technologies. The method is applied to an AP, includes: obtaining communication quality between the AP and a STA; determining, based on the communication quality, a quantity of channel estimations that need to be performed in a current round of TSCE; and obtaining channel state information CSI between the AP and the STA, where the CSI is determined based on a channel estimation result obtained after the current round of TSCE is performed based on the determined quantity of channel estimations. In this application, the AP adjusts, in real time based on the communication quality, a quantity of channel estimations that need to be performed in each round of TSCE, to resolve a problem of relatively low reliability of channel estimation in a related technology.
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