公开(公告)号：US10917066B2

公开(公告)日：2021-02-09

申请号：US16731801

申请日：2019-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaofeng Zhang ,  Lixia Qiu ,  Ke Chen

IPC: H03H7/46 ,  H01P1/213

Abstract: An input/output apparatus of a multiplexer is provided, including: a main tap and at least two branch taps of the main tap, where each of the at least two branch taps is configured to couple to a different resonant cavity in the multiplexer, and the at least two branch taps include a first branch tap and a second branch tap; a coupling polarity of the first branch tap is opposite to that of the second branch tap; and a coupling calculation frequency of the second branch tap is closest to a coupling calculation frequency of the first branch tap. The input/output apparatus of the multiplexer enables two channels with closest frequencies to use different coupling polarities. Because the coupling polarities are different, signals naturally do not interfere with each other, and signal interference between channels is eliminated in principle. The embodiments of the present disclosure further provide a corresponding multiplexer.

公开(公告)号：US10818989B2

公开(公告)日：2020-10-27

申请号：US16424503

申请日：2019-05-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaofeng Zhang ,  Bengui Yuan

IPC: H01P1/208 ,  H01P1/207 ,  H01P1/212 ,  H01P3/16 ,  H01P5/08

Abstract: A filter and a communications device are disclosed. The filter includes a metal cavity, a metal resonant cavity, and a metal cover covering the metal cavity and the metal resonant cavity. A dielectric waveguide is disposed in the metal cavity, and the dielectric waveguide is electrically connected to the metal cavity. Resonant rod is disposed in the metal resonant cavity. A coupling structure is disposed between the metal cavity and a metal resonant cavity that is neighboring to the metal cavity, the coupling structure includes a communication area between the metal cavity and the metal resonant cavity and a dielectric body that protrudes into the communication area, the dielectric body is connected to the dielectric waveguide, and the coupling structure is coupled to a resonant rod in the metal resonant cavity.

公开(公告)号：US10667025B2

公开(公告)日：2020-05-26

申请号：US15818108

申请日：2017-11-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fei Ye ,  Dianbo Zhao ,  Guikai Peng ,  Huafeng Lin ,  Ning Cheng ,  Xiaofeng Zhang ,  Dajiang Tang ,  Zhenping Wang

IPC: H04Q11/00 ,  H04J14/00 ,  H04B10/272

Abstract: A framing method and apparatus in a passive optical network (PON) and a system, where the method includes generating a first transmission convergence (TC) frame and a second TC frame separately, wherein a sum of frame lengths of the first and the second TC frame is 125 microseconds (μs), performing bit mapping on the second TC frame to generate a third TC frame, where the bit mapping refers to identifying each bit of the second TC frame using N bits, and sending the first and the second TC frame to an optical network unit (ONU). A line rate corresponding to the second TC frame is lower than 2.488 giga bits per second (Gbps) such that a rate of a receiver on a receiving side is decreased and a bandwidth of the receiver is narrowed, thereby decreasing an optical link loss and increasing an optical power budget.

公开(公告)号：US10476526B2

公开(公告)日：2019-11-12

申请号：US15990180

申请日：2018-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoshu Si ,  Dao Pan ,  Fanglin Sun ,  Xiaofeng Zhang ,  Tao Ouyang

IPC: H03M13/17 ,  H03M13/00 ,  H04L1/00 ,  H03M13/11 ,  H03M13/35 ,  H03M13/15 ,  H03M13/23 ,  H03M13/29

Abstract: Embodiments of the present disclosure provide an FEC coding and decoding method and device, and a system. A transmit end determines a forward error correction FEC coding type according to a length of to-be-coded data in burst data, and performs coding according to the determined FEC coding type. A receive end determines a forward error correction FEC decoding type according to a length of to-be-decoded data in burst data, and performs decoding according to the determined FEC decoding type. The FEC coding and decoding method provided in the embodiments of the present disclosure improves utilization of a communication resource is improved, and saves a communication resource.

公开(公告)号：US09854036B2

公开(公告)日：2017-12-26

申请号：US14534446

申请日：2014-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Yang ,  Xiaofeng Zhang

IPC: G06F13/28 ,  H04L29/08 ,  G06F9/455

CPC classification number: H04L67/1095 ,  G06F9/45558 ,  G06F2009/4557

Abstract: A method for migrating memory data of a virtual machine, and a related apparatus, and a cluster system are provided. The method includes: obtaining a data sending request for sending memory data of a first virtual machine, where the request includes an identity of the first virtual machine and a PFN of the memory data that is requested to be sent; querying a correspondence information base according to the identity of the first virtual machine to obtain a correspondence of the first virtual machine; querying the correspondence of the first virtual machine according to the PFN of the memory data that is requested to be sent, so as to obtain a physical memory page address of the memory data; and sending, to a destination physical host by using an RDMA network adapter, memory data stored at the physical memory page address of the memory data.

公开(公告)号：US20170237489A1

公开(公告)日：2017-08-17

申请号：US15581809

申请日：2017-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaofeng Zhang ,  Guikai Peng

IPC: H04B10/25 ,  H04B10/079 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04B10/2503 ,  H04B10/0795 ,  H04B10/272 ,  H04J3/0682 ,  H04L5/0007 ,  H04L27/2071 ,  H04L27/2607 ,  H04L27/2663 ,  H04L27/2666 ,  H04L27/2671 ,  H04L27/2675 ,  H04L27/2692

Abstract: A terminal device registration method and a device, where the method includes sending upstream registration window information to a terminal device, where the upstream registration window information indicates a starting position of an upstream registration window to the terminal device, receiving an upstream access signal sent by the terminal device from the starting position of the upstream registration window, where the upstream access signal includes a correlation sequence symbol and at least one orthogonal frequency division multiplexing (OFDM) symbol following the correlation sequence symbol, the correlation sequence symbol is constituted by a first sequence that meets a preset condition, and the at least one OFDM symbol modulates access information by means of differential phase modulation in a frequency domain, and performing upstream ranging according to the starting position of the upstream registration window and the correlation sequence symbol.

公开(公告)号：US20250158266A1

公开(公告)日：2025-05-15

申请号：US19025872

申请日：2025-01-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Nilsánu Johan Pirak Sikku ,  Xiaofeng Zhang

IPC: H01P7/10

Abstract: The present disclosure relates to a frequency tunable resonator comprising a dielectric block having a surface coated with a conductive layer. The frequency tunable resonator further comprises a conductive tuning pattern at the surface of the dielectric block delimited by an opening in the conductive layer. An electrically controllable switch is configured to conductively connect the conductive tuning pattern to a conductive structure. The frequency tunable resonator will therefore resonate at a first frequency (F1) when the electrically controllable switch is operating in its non-active state, and resonate at a second frequency (F2) when the electrically controllable switch is operating in its active state.

公开(公告)号：US12034195B2

公开(公告)日：2024-07-09

申请号：US17727441

申请日：2022-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yantao Li ,  Dan Liang ,  Xiaofeng Zhang ,  Zhiyu Liu

IPC: H01P1/20 ,  H01P1/208 ,  H03H7/01 ,  H01P1/202

CPC classification number: H01P1/2002 ,  H01P1/2088 ,  H03H7/0115 ,  H01P1/202

Abstract: This application relates to the field of communications component technologies, and provides a band-stop filter and an electronic device. The band-stop filter includes: a waveguide transmission line, configured to transmit electromagnetic waves; and a plurality of dielectric resonance units, sequentially arranged along an extension track of the waveguide transmission line, and configured to be coupled to the waveguide transmission line, where the dielectric resonance units each include at least one dielectric resonator; the dielectric resonator includes a first dielectric block and a first conductive layer covering an outer surface of the first dielectric block; and a first surface of the first dielectric block has a blind hole, and the first conductive layer covers an inner surface of the blind hole; where a dielectric constant of a material that forms the first dielectric block is greater than 1.

公开(公告)号：US11978940B2

公开(公告)日：2024-05-07

申请号：US17357696

申请日：2021-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dan Liang ,  Xiaofeng Zhang ,  Guoshuai Zhao

IPC: H01P1/20 ,  H01P5/12 ,  H04B1/40

CPC classification number: H01P1/20 ,  H01P5/12 ,  H04B1/40

Abstract: The present disclosure relates to dielectric duplexers. One example dielectric duplexer includes a dielectric body, where an input/output structure, a tap, a first resonance structure, and a second resonance structure are provided on surfaces of the dielectric body. The tap and the input/output structure are provided on different surfaces of the dielectric body. The tap and the input/output structure are located between the first resonance structure and the second resonance structure. A first resonator consists of the first resonance structure and the dielectric body around the first resonance structure, and a second resonator consists of the second resonance structure and the dielectric body around the second resonance structure. A conducting layer covers a surface of the input/output structure, the tap, the first resonance structure, and the second resonance structure, and the conducting layer covers the surface of the dielectric body except a region around the input/output structure.

公开(公告)号：US10897311B2

公开(公告)日：2021-01-19

申请号：US16452389

申请日：2019-06-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liqiang Yu ,  Liming Fang ,  Sulin Yang ,  Xiaofeng Zhang

IPC: H04B10/04 ,  H04B10/50 ,  G02F1/015 ,  H01S5/00 ,  H04B10/564

Abstract: An optical signal modulation circuit includes a laser (DFB), a modulator (EAM), and an operational amplifier. The laser (DFB) generates a laser to stimulate the modulator (EAM) to generate a photon-generated current (ip), a first port (a) of the modulator (EAM) is connected to a first input voltage (Vbias), a second port (b) of the modulator (EAM) is connected to an inverting input end of the operational amplifier, a non-inverting input end of the operational amplifier is connected to a second input voltage (Vin), and an output end of the operational amplifier is connected to the first port (a) of the modulator. In the modulation circuit, a photon-generated current (ip) of the EAM is fed back to the operational amplifier, to implement a linear relationship between the second input voltage (Vin) and the photon-generated current (ip) of the EAM, and obtain a linear EML transmission curve, namely, a high-linearity EML.