公开(公告)号：US20140089633A1

公开(公告)日：2014-03-27

申请号：US14092213

申请日：2013-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunlei Fan ,  Wenhua Du ,  Zixue Bi

IPC: G06F12/06

CPC classification number: G06F12/063 ,  G06F12/0223 ,  G06F12/1408 ,  G06F17/15 ,  G06F17/156 ,  G06F21/12 ,  G06F21/14

Abstract: The present invention relates to the field of communication technologies and discloses a method and an apparatus for encoding a data address, so that attacks can be effectively prevented and resources and costs required to handle a bank conflict are reduced. In solutions provided by embodiments of the present invention, an exclusive-OR operation is performed on one or more bits of a received uncoded address by using multiple preset transform polynomials; and an encoded address is obtained according to a result of the exclusive-OR operation. The solutions provided by the embodiments of the present invention are applicable to designs that require a large-capacity DRAM, high performance and high reliability, and have an anti-attack demand.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种用于对数据地址进行编码的方法和装置，从而可以有效地防止攻击，减少了处理银行冲突所需的资源和成本。 在本发明实施例提供的解决方案中，通过使用多个预设变换多项式对接收到的未编码地址的一个或多个比特执行异或运算; 并且根据异或运算的结果获得编码地址。 本发明实施例提供的解决方案适用于需要大容量DRAM，高性能和高可靠性并具有抗攻击需求的设计。

公开(公告)号：US11297011B2

公开(公告)日：2022-04-05

申请号：US16874191

申请日：2020-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Wei ,  Qin Zheng ,  Wenhua Du

IPC: H04L12/879 ,  H04L49/901 ,  G06F12/0893 ,  H04L47/50

Abstract: A data transmission method includes obtaining dequeue information that indicates a queue which requests to output data in a communications device and a target data volume that is output from each queue at a time, and the communications device manages the target data volume based on a burst value, reading, based on the queue, a sub-packet descriptor (PD) that is obtained by segmenting the first PD, the sub-PD includes target description information indicating a target data packet, the first PD includes first description information indicating a first data packet set including the target data packet, the first data packet set and the sub-PD are stored in a packet cache including a dynamic random access memory (DRAM), the first PD is stored in a control cache including a static random access memory (SRAM), and determining, the target data packet based on the sub-PD, and sending the target data packet.

公开(公告)号：US11290578B2

公开(公告)日：2022-03-29

申请号：US16802977

申请日：2020-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaojun Zhang ,  Wenhua Du ,  Shuai Xiao ,  Min Zha

IPC: H04L29/08 ,  H04L69/324

Abstract: An example exchange method includes: receiving, through a first interface, M bits; after receiving the M bits, receiving M bytes through the first interface, wherein each of the M bits indicates a status of a corresponding byte in the M bytes; encapsulating, based on the M bits corresponding to the M bytes, L bytes of the M bytes to obtain L encapsulated bytes, wherein M and L are integers greater than or equal to 1, and L is less than M; exchanging the L encapsulated bytes to a second interface; decapsulating the L encapsulated bytes to obtain L decapsulated bytes; and sending the L decapsulated bytes through the second interface.

公开(公告)号：US20240372745A1

公开(公告)日：2024-11-07

申请号：US18774615

申请日：2024-07-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongjie Shi ,  Qiwen Zhong ,  Wenhua Du ,  Yongzhi Liu

IPC: H04L12/40 ,  H04L67/12 ,  H04W4/48

Abstract: This application provides an in-vehicle communication method, an apparatus, and a system. The system including: multiple gateways connected through a bus, where an ASN apparatus is disposed in each gateway. The ASN apparatus sends, to one or more of an in-vehicle service node, a controller, data carried in an ATU that is decapsulated by the ASN apparatus, or sends, to another gateway connected to the gateway, an ATU encapsulated by the ASN apparatus; and the ATU is obtained by encapsulating data of each in-vehicle service based on a physical layer coding rule that adapts to the bus; and the in-vehicle service node, the controller, or the in-vehicle networked terminal connected to the gateway, configured to receive decapsulated data sent by the gateway or send, to the gateway, data corresponding to an in-vehicle service of the in-vehicle service node, the controller, or the in-vehicle networked terminal.

公开(公告)号：US11799576B2

公开(公告)日：2023-10-24

申请号：US17242929

申请日：2021-04-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenhua Du ,  Tao Lin ,  Min Chen ,  Feng Zhang

IPC: H04J3/06 ,  H04J3/16

CPC classification number: H04J3/0605 ,  H04J3/1658

Abstract: This application discloses example data sending methods and apparatuses, and an example FlexE switching system. In one example, when slice packets received include a SOP flag and an EOP flag of a same data packet, immediately data packet slices is restored in the slice packets to a FlexE data stream and the FlexE data stream is sent, or the data packet slices are restored in the slice packets to the FlexE data stream and the FlexE data stream is sent when a latency is greater than or equal to a first present duration. When the slice packets received include the SOP flag but do not include the EOP flag of a data packet, the data packet slices are restored in the slice packets and the FlexE data stream is sent when the latency reaches a second preset duration. The first preset duration is less than the second preset duration.

公开(公告)号：US11206216B2

公开(公告)日：2021-12-21

申请号：US16851615

申请日：2020-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhua Du ,  Yongzhi Liu ,  Tao Lin ,  Jun Hu

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/931 ,  H04L12/721

Abstract: A flexible Ethernet (FlexE) frame forwarding method, including receiving a first frame through a FlexE client input channel, obtaining a first channel identifier used to indicate the FlexE client input channel and a first subchannel identifier carried in the first frame, where the first subchannel identifier is used to indicate a logical subchannel of the FlexE client input channel, searching a preset forwarding table based on the first channel identifier and the first subchannel identifier to obtain a second channel identifier and a second subchannel identifier, where the second channel identifier is used to indicate a FlexE client output channel, and the second subchannel identifier is used to indicate a logical subchannel of the FlexE client output channel, and forwarding the first frame based on the second channel identifier and the second subchannel identifier.

公开(公告)号：US09442845B2

公开(公告)日：2016-09-13

申请号：US14092213

申请日：2013-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chunlei Fan ,  Wenhua Du ,  Zixue Bi

IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F17/15 ,  G06F12/06 ,  G06F12/02 ,  G06F21/12 ,  G06F21/14 ,  G06F12/14

CPC classification number: G06F12/063 ,  G06F12/0223 ,  G06F12/1408 ,  G06F17/15 ,  G06F17/156 ,  G06F21/12 ,  G06F21/14

Abstract: The present invention relates to the field of communication technologies and discloses a method and an apparatus for encoding a data address, so that attacks can be effectively prevented and resources and costs required to handle a bank conflict are reduced. In solutions provided by embodiments of the present invention, an exclusive-OR operation is performed on one or more bits of a received uncoded address by using multiple preset transform polynomials; and an encoded address is obtained according to a result of the exclusive-OR operation. The solutions provided by the embodiments of the present invention are applicable to designs that require a large-capacity DRAM, high performance and high reliability, and have an anti-attack demand.

Abstract translation: 本发明涉及通信技术领域，并且公开了一种用于对数据地址进行编码的方法和装置，从而可以有效地防止攻击，减少了处理银行冲突所需的资源和成本。 在本发明实施例提供的解决方案中，通过使用多个预设变换多项式对接收到的未编码地址的一个或多个比特执行异或运算; 并且根据异或运算的结果获得编码地址。 本发明实施例提供的解决方案适用于需要大容量DRAM，高性能和高可靠性并具有抗攻击需求的设计。

公开(公告)号：US20200274831A1

公开(公告)日：2020-08-27

申请号：US16874191

申请日：2020-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Wei ,  Qin Zheng ,  Wenhua Du

IPC: H04L12/879 ,  H04L12/863 ,  G06F12/0893

Abstract: A data transmission method includes obtaining dequeue information that indicates a queue which requests to output data in a communications device and a target data volume that is output from each queue at a time, and the communications device manages the target data volume based on a burst value, reading, based on the queue, a sub-packet descriptor (PD) that is obtained by segmenting the first PD. the sub-PD includes target description information indicating a target data packet, the first PD includes first description information indicating a first data packet set including the target data packet, the first data packet set and the sub-PD are stored in a packet cache including a dynamic random access memory (DRAM), the first PD is stored in a control cache including a static random access memory (SRAM), and determining, the target data packet based on the sub-PD, and sending the target data packet.

公开(公告)号：US20200244579A1

公开(公告)日：2020-07-30

申请号：US16851615

申请日：2020-04-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhua Du ,  Yongzhi Liu ,  Tao Lin ,  Jun Hu

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/931 ,  H04L12/721

Abstract: The invention disclose a flexible Ethernet frame forwarding method, including: receiving a first frame through a FlexE client input channel; obtaining a first channel identifier used to indicate the FlexE client input channel and a first subchannel identifier carried in the first frame, where the first subchannel identifier is used to indicate a logical subchannel of the FlexE client input channel; searching a preset forwarding table based on the first channel identifier and the first subchannel identifier to obtain a second channel identifier and a second subchannel identifier, where the second channel identifier is used to indicate a FlexE client output channel, and the second subchannel identifier is used to indicate a logical subchannel of the FlexE client output channel; and forwarding the first frame based on the second channel identifier and the second subchannel identifier.