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公开(公告)号：US20250055731A1
公开(公告)日：2025-02-13
申请号：US18920006
申请日：2024-10-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhengchun Zhou , Rui Du , Yajing Zhou , Xiaohu Tang , Chenchen Liu , Xiao Han
Abstract: A communication method includes generating a first sequence, where the first sequence is based on a complete complementary code set, the complete complementary code set is based on a Golay pair and a Hadamard matrix through a Kronecker product operation, and the first sequence is used for channel estimation; and sending the first sequence. In the method, use of a P-matrix is avoided in a process of constructing a plurality of streams of zero correlation sequences.
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公开(公告)号：US10142217B2
公开(公告)日：2018-11-27
申请号：US14949451
申请日：2015-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Yu , Xiaohu Tang , Ting Xu
IPC: H04L12/705 , H04L12/721 , H04L12/741 , G06F11/00 , H04L12/753 , H04L29/06
Abstract: A loop avoidance method, device and system. The system includes a first network device and a second network device in an internal network, a first Ethernet port and a second Ethernet port of the two network devices are of a first type, and loop avoidance priorities of the Ethernet ports are different from each other; root media access control (MAC) addresses of the two network devices are the same, and are different from respective network bridge MAC addresses; the second network device receives a loop detection frame from the first Ethernet port through the second Ethernet port, where a source address of the loop detection frame is the root MAC address, and blocks the second Ethernet port according to the loop avoidance priority. A network device blocks, according to a loop avoidance priority, an Ethernet port connected to an external network to avoid changing a topology of an internal network.
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公开(公告)号：US20160149799A1
公开(公告)日：2016-05-26
申请号：US14949451
申请日：2015-11-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Yu , Xiaohu Tang , Ting Xu
IPC: H04L12/705 , H04L12/741 , H04L12/721
CPC classification number: H04L45/18 , H04L45/48 , H04L45/66 , H04L45/74 , H04L45/745 , H04L69/16 , H04L69/22
Abstract: A loop avoidance method, device and system. The system includes a first network device and a second network device in an internal network, a first Ethernet port and a second Ethernet port of the two network devices are of a first type, and loop avoidance priorities of the Ethernet ports are different from each other; root media access control (MAC) addresses of the two network devices are the same, and are different from respective network bridge MAC addresses; the second network device receives a loop detection frame from the first Ethernet port through the second Ethernet port, where a source address of the loop detection frame is the root MAC address, and blocks the second Ethernet port according to the loop avoidance priority. A network device blocks, according to a loop avoidance priority, an Ethernet port connected to an external network to avoid changing a topology of an internal network.
Abstract translation: 循环回避方法，设备和系统。 该系统包括内部网络中的第一网络设备和第二网络设备，两个网络设备的第一以太网端口和第二以太网端口是第一类型，并且以太网端口的回路优先级彼此不同 ; 两个网络设备的根媒体访问控制（MAC）地址相同，与各自的网桥MAC地址不同; 第二网络设备通过第二以太网端口从第一以太网端口接收环路检测帧，其中环路检测帧的源地址是根MAC地址，并且根据回路优先级阻塞第二以太网端口。 网络设备根据环路回避优先级阻塞连接到外部网络的以太网端口，以避免改变内部网络的拓扑。
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公开(公告)号：US11831398B2
公开(公告)日：2023-11-28
申请号：US17462275
申请日：2021-08-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yang Yang , Xianfu Lei , Xiaohu Tang , Zhi Gu , Min Yan
CPC classification number: H04J13/0014 , H04J13/0062 , H04J13/10 , H04L25/0202 , H04W80/02
Abstract: This application relates to the field of communications technologies, and discloses a data transmission method. The method includes: generating a PPDU; and transmitting the PPDU to at least one receive end. The PPDU includes a channel estimation field CEF, and the CEF includes a plurality of sub-sequences. For each of the plurality of sub-sequences, a part or all of elements in the sub-sequence are basic elements, and the basic elements are arranged into a Golay sequence or a ZC sequence in the sub-sequence. This application is used for data transmission.
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公开(公告)号：US20250106078A1
公开(公告)日：2025-03-27
申请号：US18973744
申请日：2024-12-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Qian , Zhengchun Zhou , Chenchen Liu , Yang Yang , Xun Yang , Xiaohu Tang
Abstract: A method includes sending, by a communication apparatus, configuration information. The configuration information includes a quantity of cyclic shift positions that corresponds to each device, the quantity of cyclic shift positions is used to cyclically shift a perfect sequence, and quantities that are of cyclic shift positions and that correspond to devices used for completing different services are different. The method is applied to an ultra-wideband (UWB)-based wireless personal local area network system, a sensing system, and the like, including 802.15 series protocols, such as an 802.15.4a protocol, an 802.15.4z protocol, or an 802.15.4ab protocol. The method is further applied to a wireless local area network system that can support a next-generation WI-FI protocol of 802.11ax, such as 802.11be, Wi-Fi 7, or extremely high-throughput (EHT), and 802.11 series protocols, such as a next generation of 802.11be or WI-FI 8.
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Patent Agency Ranking
公开(公告)号：US11979343B2
公开(公告)日：2024-05-07
申请号：US17536294
申请日：2021-11-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Lin , Yang Yang , Min Yan , Qian Wang , Xiaohu Tang
CPC classification number: H04L5/001 , H04L5/0094 , H04L25/0204 , H04W80/02
Abstract: This application discloses a method including a transmit end that generates and sends a physical layer protocol data unit (PPDU), and a receive end that receives the PPDU and parses the PPDU. An enhanced directional multi-gigabit (EDMG) modulation field in the PPDU includes a channel estimation field (CEF), the CEF includes a CEF sequence, and a length of the CEF sequence is m, where m is determined based on a quantity of bonding channels and a quantity of subcarriers included on a channel. When a discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) technology is introduced into a 60 GHz WLAN standard, an applied CEF sequence included in a CEF can be determined, and DFT-S-OFDM transmission is further performed by using the CEF sequence. In this way, a PAPR of a WLAN system can be reduced while frequency division multiplexing for a plurality of users is supported.
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公开(公告)号：US11469845B2
公开(公告)日：2022-10-11
申请号：US17333835
申请日：2021-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Lin , Yang Yang , Min Yan , Qian Wang , Xiaohu Tang
Abstract: In this application, a manner of generating a modulated field STF is enriched, so that a manner of generating a PPDU is enriched, thereby improving data transmission flexibility. The method includes: After generating a PPDU, a transmit end sends the PPDU to at least one receive end, where the PPDU includes at least one modulated field STF, the modulated field STF includes a plurality of zero elements and a plurality of non-zero elements, m1 zero elements are included before a first non-zero element, m2 zero elements are included after a last non-zero element, m1+m2 zero elements are included between any two adjacent non-zero elements, m1 and m2 both are positive integers, and the modulated field STF is mapped to a plurality of consecutive subcarriers for transmission. This application is used for data transmission.
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公开(公告)号：US20160164910A1
公开(公告)日：2016-06-09
申请号：US14962618
申请日：2015-12-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu Tang
CPC classification number: H04L63/1441 , H04L43/0894 , H04L43/16 , H04L63/101 , H04L63/1458
Abstract: A processing method and apparatus for preventing a packet attack. A network protocol negotiation status of a port of a network device is monitored; a port that succeeds in network protocol negotiation is set to a trusted port, a protocol packet is selected, according to a first access control list (ACL), from packets received by the trusted port, and a rate at which the protocol packet is sent to a central processing unit (CPU) is limited to a first committed access rate (CAR); a port that fails in network protocol negotiation is set to an untrusted port, a protocol packet is selected, according to a second ACL, from packets received by the untrusted port, and a rate at which the protocol packet is sent to the CPU is limited to a second CAR. Configuration accuracy of the trusted port and the untrusted port is improved, and packet attack is prevented.
Abstract translation: 一种用于防止分组攻击的处理方法和装置。 监控网络设备端口的网络协议协商状态; 将成功进行网络协议协商的端口设置为信任端口，根据第一访问控制列表（ACL），从信任端口接收的分组和发送协议报文的速率来选择协议报文 中央处理单元（CPU）被限制为第一承诺访问速率（CAR）; 将网络协议协商失败的端口设置为不可信端口，根据第二ACL从不受信任端口接收的报文中选择协议报文，并将协议报文发送给CPU的速率受限制 到第二个CAR。 信任端口和不信任端口的配置精度提高，防止报文攻击。
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公开(公告)号：US10972362B2
公开(公告)日：2021-04-06
申请号：US15938773
申请日：2018-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu Tang , Bin Yu
IPC: H04L12/24 , H04L12/46 , H04L29/06 , H04L12/933 , H04L29/12
Abstract: A network service configuration method and a network management device, where the method includes obtaining, by a network management device, a terminal access port and an access parameter that is configured for the terminal access port and that is of a network service, determining a to-be-configured port according to the access parameter that is configured for the terminal access port and that is of the network service; generating a configuration instruction of the to-be-configured port, and sending the configuration instruction of the to-be-configured port to a to-be-configured network device. Hence, intervention from an administrator is not required, an error probability of network operation and maintenance may be reduced, efficiency of configuring a parameter of the network service is improved, and administrator time is saved.
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公开(公告)号：US20180287889A1
公开(公告)日：2018-10-04
申请号：US15938773
申请日：2018-03-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu Tang , Bin Yu
Abstract: A network service configuration method and a network management device, where the method includes obtaining, by a network management device, a terminal access port and an access parameter that is configured for the terminal access port and that is of a network service, determining a to-be-configured port according to the access parameter that is configured for the terminal access port and that is of the network service; generating a configuration instruction of the to-be-configured port, and sending the configuration instruction of the to-be-configured port to a to-be-configured network device. Hence, intervention from an administrator is not required, an error probability of network operation and maintenance may be reduced, efficiency of configuring a parameter of the network service is improved, and administrator time is saved.
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