公开(公告)号：US20210200578A1

公开(公告)日：2021-07-01

申请号：US17106179

申请日：2020-11-29

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Yuan Gao ,  Xingguo Sun ,  Wenhui Liang

IPC: G06F9/48 ,  G06F9/455 ,  H04L12/46 ,  H04L12/715 ,  H04L29/12

Abstract: Embodiments of this application provide a method and an apparatus for determining virtual machine VM migration. The method includes: after a VM is migrated, sending a gratuitous ARP packet or a RARP packet to an in-migration VTEP device; obtaining, by the VTEP device, a MAC address of the VM, searching an ARP cache table based on the MAC address, and obtaining an IP address of the VM; and constructing an ARP unicast request packet by using the IP address as a destination IP address, and if the VTEP device receives an ARP response packet sent by the VM for the ARP unicast request packet, determining that the VM is migrated.

公开(公告)号：US20210152593A1

公开(公告)日：2021-05-20

申请号：US17138205

申请日：2020-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Haibo Wang

IPC: H04L29/06 ,  H04L12/721 ,  H04L12/741 ,  H04L12/911

Abstract: A BGP message sending method includes: determining, by a first network device, that a host identified by a first MAC address is an attacker; generating, by the first network device, a BGP message, where the BGP message includes the first MAC address and indication information, and the indication information is used to indicate that the host identified by the first MAC address is the attacker; and sending, by the first network device, the BGP message to a second network device.

公开(公告)号：US10447593B2

公开(公告)日：2019-10-15

申请号：US15910546

申请日：2018-03-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuan Gao ,  Xinpeng Li ,  Yongli Yuan

IPC: H04L12/741 ,  H04L12/66 ,  H04L29/12 ,  H04L12/707

Abstract: A method and gateway obtain a route according to a requirement. The method includes: a first gateway receives a first packet; the first gateway searches a forwarding table for a next hop of a first IP address in the first packet, wherein the search fails; the first gateway sends a second packet carrying the first IP address to at least one gateway; the first gateway receives a third packet from a second gateway; and the first gateway writes an address of the second gateway into the forwarding table as a next hop address of the first IP address.

公开(公告)号：US10142851B2

公开(公告)日：2018-11-27

申请号：US15247579

申请日：2016-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuetao Tao ,  Yuan Gao

IPC: H04W16/14 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W88/06 ,  H04W88/08

Abstract: Embodiments of the present invention relate to the field of communications technologies and disclose a spectrum processing method, a base station, user equipment, and a system. The method includes: receiving, by a base station corresponding to a first cell, at least one subband channel quality parameter that is sent by user equipment (UE) in the first cell, where each subband channel quality parameter indicates quality of one subband channel; and determining, according to the at least one subband channel quality parameter, whether the first cell uses an overlapped spectrum, where the overlapped spectrum is a part at which a frequency band of the first cell overlaps a frequency band of a second cell, the second cell and the first cell are inter-system cells, and the second cell is neighboring to the first cell. Embodiments of the present invention are mainly applied to a process of using a network spectrum.

公开(公告)号：US11900950B2

公开(公告)日：2024-02-13

申请号：US17976474

申请日：2022-10-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Jiance Ding ,  Bin Wang

IPC: G10L19/008 ,  G10L19/002 ,  G10L19/16 ,  G10L19/02

CPC classification number: G10L19/002 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/167

Abstract: The present disclosure provides a bit allocation method and apparatus for an audio signal. The bit allocation method for an audio signal includes: obtaining T audio signals in a current frame, where T is a positive integer; determining a first audio signal set based on the T audio signals, where the first audio signal set includes M audio signals, M is a positive integer, T≥M; determining M priorities of the M audio signals in the first audio signal set; and performing bit allocation on the M audio signals based on the M priorities of the M audio signals.

公开(公告)号：US11887607B2

公开(公告)日：2024-01-30

申请号：US17551451

申请日：2021-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Eyal Shlomot ,  Yuan Gao ,  Bin Wang

IPC: G10L19/008

CPC classification number: G10L19/008

Abstract: A stereo encoding method and apparatus, and a stereo decoding method and apparatus are disclosed. The stereo encoding method includes: performing downmix processing on a left channel signal of a current frame and a right channel signal of the current frame, to obtain a primary channel signal of the current frame and a secondary channel signal of the current frame; and when determining that a frame structure similarity value falls within a frame structure similarity interval, performing differential encoding on a pitch period of the secondary channel signal by using an estimated pitch period value of the primary channel signal, to obtain a pitch period index value of the secondary channel signal, where the pitch period index value of the secondary channel signal is used to generate a to-be-sent stereo encoded bitstream.

公开(公告)号：US11582141B2

公开(公告)日：2023-02-14

申请号：US16852660

申请日：2020-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Wenhui Li ,  Kai Li

IPC: H04L45/00 ,  H04L45/24 ,  H04L45/28 ,  H04L61/103

Abstract: A traffic forwarding method includes determining, by a first network device, a first address resolution protocol (ARP) entry of the access device, where the first ARP entry is used to indicate a mapping relationship among a media access control (MAC) address, an Internet Protocol (IP) address, and an egress port, the egress port includes a standby egress port, and the first network device is connected to the protection link through the standby egress port, receiving traffic sent by a network side, determining whether a fault exists in the first multi-chassis link aggregation group (MC-LAG) link, and when the first network device determines that a fault exists in the first MC-LAG link, sending the traffic to the second network device through the protection link based on a standby egress port number in the first ARP entry, where the standby egress port number is used to indicate the standby egress port.

公开(公告)号：US11428774B2

公开(公告)日：2022-08-30

申请号：US16659891

申请日：2019-10-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiantao Xue ,  Yuan Gao ,  Jing Han ,  Xizeng Dai

IPC: G01S5/02 ,  G01S5/06 ,  G01S3/00

Abstract: A method and device for estimating the time of arrival (ToA) of a radio signal are proposed. The radio signal comprises M subsignals carried on M subcarriers, where M is an integer ≥2. The number of propagation paths and the time of arrival associated with a first path are estimated. The technique can improve ToA estimation accuracy, especially in a multipath fading channel, and reduce the need for channel information.

公开(公告)号：US10938627B2

公开(公告)日：2021-03-02

申请号：US16426899

申请日：2019-05-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Wenhui Li ,  Wanmei Zeng

IPC: H04L12/24 ,  H04L12/46 ,  H04L12/707 ,  H04L12/703 ,  H04L12/721 ,  H04L12/741 ,  H04L12/709

Abstract: A packet processing method includes sending, by the first provider edge (PE) device, a Media Access Control (MAC) entry update packet to a third PE device when a port of a first PE device that is connected to a customer edge (CE) device is switched from an activated state to a deactivated state, wherein the MAC entry update packet is sent to trigger the third PE device to delete a first MAC entry whose packet forwarding destination address is the first PE device, generating, through learning, a second MAC entry whose packet forwarding destination address is a second PE device, and forwarding a packet based on the second MAC entry.

公开(公告)号：US10853127B2

公开(公告)日：2020-12-01

申请号：US16135996

申请日：2018-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuan Gao ,  Xingguo Sun ,  Wenhui Liang

IPC: G06F9/48 ,  G06F9/455 ,  H04L12/46 ,  H04L12/715 ,  H04L29/12 ,  G06F9/4401

Abstract: Embodiments of this application provide a method and an apparatus for determining virtual machine VM migration. The method includes: after a VM is migrated, sending a gratuitous ARP packet or a RARP packet to an in-migration VTEP device; obtaining, by the VTEP device, a MAC address of the VM, searching an ARP cache table based on the MAC address, and obtaining an IP address of the VM; and constructing an ARP unicast request packet by using the IP address as a destination IP address, and if the VTEP device receives an ARP response packet sent by the VM for the ARP unicast request packet, determining that the VM is migrated.