公开(公告)号：US20190007156A1

公开(公告)日：2019-01-03

申请号：US15635428

申请日：2017-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mohammad Mehdi Mansouri Rad ,  Hamid Mehrvar

IPC: H04J14/02

Abstract: In some examples, an optical node includes transition logic to: receive an indication of a data channel to be added across an optical medium, the data channel to occupy a portion of an optical spectrum; in response to a receipt of the indication, divide the data channel into a plurality of sub-channels; and sequentially add each of the plurality of sub-channels across the optical medium in a particular order.

公开(公告)号：US09955243B2

公开(公告)日：2018-04-24

申请号：US15347448

申请日：2016-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar

IPC: H04Q11/00 ,  H04J14/02 ,  H04L12/947

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04L49/25 ,  H04Q11/0003 ,  H04Q2011/0039 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0054 ,  H04Q2011/0058

Abstract: Hybrid dilated Benes photonic switching architectures employ an arrangement of two-by-one (2×1) photonic and two-by-two (2×2) photonic elements to enjoy improved cross-talk performance while maintaining moderate cell counts. A jumpsuit switch optical network node architecture comprising multiple stages may operate more efficiently than single stage switching fabrics, by enabling manipulation of connectivity in some stages to achieve load balancing over other stages. Specifically, a first stage of switching fabrics connected to input ports of the optical node may be manipulated to load balance incoming signals over a second stage of switching fabrics coupled to output ports of the optical node. Additionally, a third stage of switching fabrics connected to add ports of the optical node may be manipulated to load balance added optical signals over the second stage of switching fabrics.

公开(公告)号：US09560427B2

公开(公告)日：2017-01-31

申请号：US14289304

申请日：2014-05-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04L49/25 ,  H04Q11/0003 ,  H04Q2011/0039 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0054 ,  H04Q2011/0058

Abstract: Hybrid dilated Benes photonic switching architectures employ an arrangement of two-by-one (2×1) photonic and two-by-two (2×2) photonic elements to enjoy improved cross-talk performance while maintaining moderate cell counts. A jumpsuit switch optical network node architecture comprising multiple stages may operate more efficiently than single stage switching fabrics, by enabling manipulation of connectivity in some stages to achieve load balancing over other stages. Specifically, a first stage of switching fabrics connected to input ports of the optical node may be manipulated to load balance incoming signals over a second stage of switching fabrics coupled to output ports of the optical node. Additionally, a third stage of switching fabrics connected to add ports of the optical node may be manipulated to load balance added optical signals over the second stage of switching fabrics.

Abstract translation: 混合扩张的Benes光子切换架构采用两乘（2×1）光子和二乘二（2×2）光子元件的布置，以在保持中等细胞计数的同时享受改善的串扰性能。 包括多个级的连接开关光网络节点架构可以比单级交换结构更有效地操作，通过在一些阶段中实现连接的操作以在其他阶段实现负载平衡。 具体地，可以操纵连接到光节点的输入端口的交换结构的第一级，以在耦合到光节点的输出端口的交换结构的第二级上负载平衡输入信号。 此外，可以操纵连接到添加光节点的端口的交换结构的第三级，以在交换结构的第二级上负载平衡添加的光信号。

公开(公告)号：US09432748B2

公开(公告)日：2016-08-30

申请号：US14275520

申请日：2014-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar ,  Eric Bernier

IPC: H04Q11/00

CPC classification number: H04Q11/0003 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/006

Abstract: In one embodiment, method of wrapping photonic packets includes receiving, by a node, a first packet and receiving, by the node, a second packet. The method also includes concatenating the first packet and the second packet to produce a concatenated frame, where concatenating the first packet and the second packet includes removing an inter-packet-gap (IPG) between the first packet and the second packet and converting the concatenated frame to a photonic frame, where the concatenated frame is an electrical frame.

Abstract translation: 在一个实施例中，包裹光子分组的方法包括由节点接收第一分组，并由节点接收第二分组。 该方法还包括连接第一分组和第二分组以产生级联的帧，其中连接第一分组和第二分组包括去除第一分组和第二分组之间的分组间间隔（IPG），并将连接的 帧到光子帧，其中级联帧是电子帧。

公开(公告)号：US20150309265A1

公开(公告)日：2015-10-29

申请号：US14695970

申请日：2015-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar ,  Huixiao Ma ,  Eric Bernier

IPC: G02B6/35 ,  H04Q11/00

CPC classification number: G02B6/3546 ,  G02B6/3548 ,  G02B6/3556 ,  G02B6/3558 ,  H04Q11/0003 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0045 ,  H04Q2011/005 ,  H04Q2011/0054

Abstract: Embodiments are provided for scalable photonic packet fabric architectures using photonic integrated circuit switches. The architectures use compact size silicon photonic circuits that can be arranged in a combined centralized and distributed manner. In an embodiment, an optical switch structure comprises a plurality of core photonic based switches and a plurality of photonic interface units (PIUs) optically coupled to the core photonic based switches and to a plurality of groups of top-of-rack switches (TORs). Each PIU comprises a N×N silicon photonic (SiP) switch optically coupled to a group of TORs associated with the PIU from the groups of TORs, where N is a number of the TORs in each group. The PIU also comprises a plurality of 1×P SiP switches coupled to the group of TORs associated with the PIU and to the core photonic based switches, where P is a number of the core photonic based switches.

Abstract translation: 提供了使用光子集成电路开关的可扩展光子分组结构体系结构的实施例。 该体系结构使用紧凑型硅光子电路，可以以集中和分布的方式组合。 在一个实施例中，光开关结构包括多个基于核心光子的开关和多个光子耦合到基于核心光子的开关的光子接口单元（PIU）以及多组顶架开关（TOR）组， 。 每个PIU包括与来自TOR组的PIU相关联的一组TOR光学耦合的N×N硅光子（SiP）开关，其中N是每组中的TOR的数量。 PIU还包括耦合到与PIU相关联的一组TOR的多个1×P SiP开关和基于核心光子的开关，其中P是基于核心光子的开关的数量。

公开(公告)号：US11876606B2

公开(公告)日：2024-01-16

申请号：US17831526

申请日：2022-06-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hamid Mehrvar

IPC: H04J14/02 ,  H04B10/294

CPC classification number: H04J14/0212 ,  H04B10/294 ,  H04J14/0204 ,  H04J14/0213

Abstract: The systems and methods directed towards a reconfigurable optical add-drop multiplexer (ROADM). The ROADM comprising: i) a plurality of line cards, wherein each one of the plurality of line cards is configured to receive a plurality of wavelength channels from an optical link in an optical network; ii) a plurality of add/drop cards, wherein each one of the plurality of add/drop cards includes a primary path and a secondary path; and iii) a controller configured to: a) select a set of wavelength channels from the plurality of wavelength channels, b) determine if there is any contention between the set of wavelength channels, c) direct a first subset of wavelength channels from the set of wavelength channels that do not have contentions to the primary path, and d) direct a second subset of wavelength channels from the set of wavelength channels that have contentions to the secondary path.

公开(公告)号：US11838102B2

公开(公告)日：2023-12-05

申请号：US17525026

申请日：2021-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hamid Mehrvar

IPC: H04J14/02 ,  H04B10/2507

CPC classification number: H04J14/0212 ,  H04B10/2507

Abstract: A method to select a number of fibers for ROADM-equipped nodes of an optical network by which a controller is operative to determine which links are utilized as well as their usage frequencies and then partition a scale of usage frequencies into a number of intervals. By assigning a number of fibers to each one of the intervals, a number of fibers is assigned to each link, according to their usage frequencies, setting the degree for ROADMs at the nodes. Simulations can evaluate the network's performance in terms of a blocking rate representing an overall signal blocking rate by the ROADMs at network nodes. The number of intervals, their ranges, and the number of fibers associated with each interval can be iterated until an improved or satisfactory network performance is achieved.

公开(公告)号：US09781495B2

公开(公告)日：2017-10-03

申请号：US14821034

申请日：2015-08-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar

IPC: H04Q11/00

CPC classification number: H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005 ,  H04Q2011/0056

Abstract: An optical switch comprises a first stage comprising N optical inputs, wherein N is an integer power of 2 and is 16 or greater, and N first sub-switches, wherein each first sub-switch comprises 1 of the optical inputs and 4 first outputs, and a second stage coupled to the first stage and comprising 16 second sub-switches, wherein each second sub-switch comprises M second inputs and M second outputs, and wherein M is equal to N/4.

公开(公告)号：US09654853B2

公开(公告)日：2017-05-16

申请号：US14246633

申请日：2014-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hamid Mehrvar

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0066 ,  H04J14/0258 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0039 ,  H04Q2011/0064

Abstract: In one embodiment, a photonic switching fabric includes a first label detector configured to read a first optical label to produce a first detected label, where the first optical label corresponds to a first optical packet, and where the first optical label is in a control waveband and a switch controller configured to adjust a photonic switch in accordance with the first detected label. The photonic switching fabric also includes the photonic switch, configured to switch the first optical packet, where the first optical packet is in a payload waveband.

公开(公告)号：US12135666B2

公开(公告)日：2024-11-05

申请号：US18150867

申请日：2023-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hamid Mehrvar

IPC: G06F13/40 ,  G06F13/38

Abstract: A method of transmitting a data packet from a first data processing device toward a second data processing device, the first and second data processing devices being communicably connectable to one another via respective first and second interface devices and over an optical network includes determining a communication path in the optical network to communicably connect the first data processing device to the second data processing device, accessing, by a coordination module communicably connected to the first interface device, a pre-determined training sequence, transmitting, by the coordination module and over the communication path, the pre-determined training sequence to cause the second interface device to recover a signal clock from the pre-determined training sequence and transmitting, by the first data processing device, the data packet toward the second processing device over the communication path. A coordination module implements the method in a computing unit.