公开(公告)号：US20240322934A1

公开(公告)日：2024-09-26

申请号：US18735212

申请日：2024-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shuqian Zheng ,  Xiang Liu ,  Wei Su

IPC: H04J14/08

CPC classification number: H04J14/08 ,  H04J2203/0091

Abstract: This disclosure provides a service data processing method. The method includes: receiving service data; obtaining a processing manner for processing the service data; performing first timeslot-based multiplexing, bit width conversion, and second timeslot-based multiplexing on the service data when a bandwidth of the service data is less than a first threshold, to obtain an intermediate frame; performing single-level timeslot-based multiplexing on the service data when the bandwidth of the service data is not less than the first threshold, to obtain the intermediate frame; mapping the intermediate frame to an optical transport network (OTN) frame; and sending the OTN frame. A first bit width and a first bandwidth based on which the first timeslot-based multiplexing is performed are different from a second bit width and a second bandwidth based on which the second timeslot-based multiplexing and the single-level timeslot-based multiplexing are performed.

公开(公告)号：US11375299B2

公开(公告)日：2022-06-28

申请号：US17156319

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huaiyu Zeng ,  Xiang Liu ,  Andy Shen ,  Ning Cheng ,  Yuanqiu Luo ,  Frank Effenberger

IPC: H04Q11/00

Abstract: An OLT comprises a processor configured to: obtain optical powers associated with ONUs, and generate an instruction instructing a transmit order of transmissions based on the optical powers; a transmitter coupled to the processor and configured to transmit the instruction to the ONUs; and a receiver coupled to the processor and configured to receive the transmissions from the ONUs based on the instruction. An apparatus comprises a receiver configured to receive an instruction instructing a transmit order of transmissions based on optical powers associated with ONUs; a processor coupled to the receiver and configured to process the instruction; and a transmitter coupled to the processor and configured to transmit a transmission based on the instruction.

公开(公告)号：US10992406B2

公开(公告)日：2021-04-27

申请号：US17024466

申请日：2020-09-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Liu ,  Yuanqiu Luo ,  Huaiyu Zeng ,  Andy Shen ,  Frank Effenberger

IPC: H04B10/00 ,  H04J14/02 ,  H04B10/556 ,  H04J14/00

Abstract: A first apparatus in an optical communications network, the first apparatus comprises a transmitter; a receiver; a first MAC; and a first oDSP coupled to the transmitter, the receiver, and the first MAC and configured to communicate a message via a dedicated C&M channel with at least one of the first MAC, a second MAC in a second apparatus in the optical communications network, or a second oDSP in the second apparatus. A method comprises receiving an FS message comprising a PLOAM field, the PLOAM field contains oDSP-related C&M information, and the oDSP-related C&M information comprises a message type ID field and a Message_Content field; reading the message type ID field; and deciding, based on the message type ID field, whether to read the Message_Content field.

公开(公告)号：US20220155618A1

公开(公告)日：2022-05-19

申请号：US17587956

申请日：2022-01-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Yongxi Tan ,  Ning Cheng ,  Jin Yang

IPC: G02F1/01 ,  G02B27/42

Abstract: An apparatus comprises a first mirror; a second mirror; a modulation layer positioned between the first mirror and the second mirror and comprising a plurality of modulation regions; a diffraction layer positioned between the modulation layer and the second mirror, and an input port admitting a light beam into the apparatus. The light beam passes through the diffraction layer and is modulated by the modulation layer to create a first modulated beam before being reflected by the first mirror, the first mirror reflecting the first modulated beam toward the second mirror, the second mirror reflecting the first modulated beam toward the modulation layer to be modulated for at least a second time.

公开(公告)号：US20210144457A1

公开(公告)日：2021-05-13

申请号：US17156319

申请日：2021-01-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huaiyu Zeng ,  Xiang Liu ,  Andy Shen ,  Ning Cheng ,  Yuanqiu Luo ,  Frank Effenberger

IPC: H04Q11/00

Abstract: An OLT comprises a processor configured to: obtain optical powers associated with ONUs, and generate an instruction instructing a transmit order of transmissions based on the optical powers; a transmitter coupled to the processor and configured to transmit the instruction to the ONUs; and a receiver coupled to the processor and configured to receive the transmissions from the ONUs based on the instruction. An apparatus comprises a receiver configured to receive an instruction instructing a transmit order of transmissions based on optical powers associated with ONUs; a processor coupled to the receiver and configured to process the instruction; and a transmitter coupled to the processor and configured to transmit a transmission based on the instruction.

公开(公告)号：US20210006874A1

公开(公告)日：2021-01-07

申请号：US17027438

申请日：2020-09-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huaiyu Zeng ,  Yuanqiu Luo ,  Andy Shen ,  Xiang Liu ,  Frank Effenberger

IPC: H04Q11/00 ,  H04J3/06

Abstract: An ONU is provided. The ONU comprises a receiver configured to receive a first PON frame from an OLT, the first PON frame comprising a first PSBd field, the first PSBd field comprising a first PSync field, the first PSync field comprising first bits, and a first quantity of the first bits being greater than 64 bits; and a processor coupled to the receiver and configured to perform synchronization of the first PON frame by matching the first bits to a pre-stored sequence.

公开(公告)号：US12255440B2

公开(公告)日：2025-03-18

申请号：US17561187

申请日：2021-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ning Cheng ,  Xiang Liu ,  Frank Effenberger

IPC: H01S5/10 ,  H01S5/20 ,  H01S5/22 ,  H01S5/34 ,  H01S5/343 ,  H01S5/32

Abstract: A semiconductor laser comprises: a substrate; a first cladding layer disposed above the substrate; a second cladding layer disposed above the first cladding layer so that the first cladding layer is positioned between the substrate and the second cladding layer; and a first mode expansion layer within the first cladding layer, a second mode expansion layer within the second cladding layer, or both the first mode expansion layer within the first cladding layer and the second mode expansion layer within the second cladding.

公开(公告)号：US20250023639A1

公开(公告)日：2025-01-16

申请号：US18899730

申请日：2024-09-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangcan Mi ,  Xiang Liu

IPC: H04B10/2563 ,  H04J14/02 ,  H04J14/06

Abstract: Methods, apparatuses, and systems are provided. A method includes obtaining a wavelength division multiplexing optical signal. The wavelength division multiplexing optical signal includes N pairs of optical signals. Each pair of optical signals includes a first optical signal and a second optical signal that are of different wavelengths and whose polarizations are orthogonal to each other. N is an integer greater than 1, and a frequency of at least one of N first optical signals and a frequency of at least one of N second optical signals are within a zero-dispersion frequency ZDF region of an optical fiber. The method further includes sending the wavelength division multiplexing optical signal through the optical fiber.

公开(公告)号：US20250015893A1

公开(公告)日：2025-01-09

申请号：US18891290

申请日：2024-09-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Liu ,  Hongqi Wang ,  Guangcan Mi

IPC: H04B10/2525 ,  G02B6/02 ,  H04B10/2575

Abstract: Example systems and nodes are provided. An example system includes a first node, a second node, and an optical fiber that connects the first node and the second node. A zero-dispersion wavelength (ZDW) of the optical fiber belongs to a ZDW region. The optical fiber is configured for transmission of N first-direction wavelength channels and N second-direction wavelength channels. N is an integer greater than 2. At least two first-direction wavelength channels and at least one second-direction wavelength channel, or at least two second-direction wavelength channels and at least one first-direction wavelength channel, are located in the ZDW region. The first-direction wavelength channel and the second-direction wavelength channel that are in the ZDW region are mixedly distributed. The first-direction wavelength channel is sent by the first node to the second node, and the second-direction wavelength channel is sent by the second node to the first node.

公开(公告)号：US11405705B2

公开(公告)日：2022-08-02

申请号：US17153461

申请日：2021-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanqiu Luo ,  Frank Effenberger ,  Bo Gao ,  Xiang Liu

IPC: H04Q11/00 ,  H04J14/02

Abstract: A method implemented by an optical line terminal (OLT) comprising a memory storage comprising instructions, a processor in communication with the memory, wherein the processor executes the instructions to generate a multi-rate downstream frame having a pre-defined length, the multi-rate downstream frame comprising a plurality of subframes that are each associated with a respective data rate, and a transmitter coupled to the processor and configured to transmit each subframe of the plurality of subframes of the multi-rate downstream frame at the respective data rate.