Patents by Inventor Shiyi CAO

Shiyi CAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170005746
    Abstract: The prevent invention relates to a method, an apparatus, and a system for processing a flexible-rate signal. The method includes encapsulating a signal from a client side to n optical channel data unit ODU signals, and encapsulating the n ODU signals to a flexible optical channel transport unit OTU signal, where a nominal bit rate of the flexible OTU signal varies according to a value of n and the n is an integer greater than or equal to 1.
    Type: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Inventor: Shiyi Cao
  • Publication number: 20160323164
    Abstract: Embodiments of the present invention provide an Ethernet signal transport method and scheduling method, and an apparatus and a system thereof. The Ethernet signal transport method provided in the present invention includes: inserting, by a first network device, path monitoring information into a position that is a preset bit length away from an alignment marker AM in a physical coding sublayer lane PCSL of an Ethernet signal; and sending, by the first network device to at least one second network device, a signal bearing the PCSL into which the path monitoring information is inserted. According to the embodiments of the present invention, processing resource costs caused by Ethernet signal processing can be reduced, thereby avoiding waste of processing resources.
    Type: Application
    Filed: July 14, 2016
    Publication date: November 3, 2016
    Inventor: Shiyi CAO
  • Publication number: 20160294990
    Abstract: Embodiments of the present invention relate to the communications field and disclose a data transmission method, apparatus, device, and system, so as to acquire attribution information of a PCSL, and decrease overheads and complexity of identifying a network link during data transmission. The method includes: inserting a feature code block into a physical coding sublayer PCS to form a physical coding sublayer lane PCSL, where the feature code block is used to represent an Ethernet link to which the PCSL belongs; and sending the PCSL. The present invention is used for PCSL attribution identification.
    Type: Application
    Filed: June 15, 2016
    Publication date: October 6, 2016
    Inventor: Shiyi Cao
  • Patent number: 9450889
    Abstract: The present invention relates to a method, an apparatus, and a system for processing a flexible-rate signal. A signal from a client side is encapsulated to n optical channel data unit ODU signals. The n ODU signals are encapsulated to a flexible optical channel transport unit OTU signal. A nominal bit rate of the flexible OTU signal varies according to a value of n and the n is an integer greater than or equal to 1.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: September 20, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shiyi Cao
  • Patent number: 9391733
    Abstract: A method, a system, and an apparatus for transmitting data information by using optical signals are disclosed. The method includes: selecting at least two optical carriers, where the at least two optical carriers correspond to at least two optical frequency slots, and a vacant optical frequency slot or an optical frequency slot occupied by other optical signals exists between the two optical frequency slots; modulating data information onto the at least two optical carriers to form a channel of optical signals, so that the channel of optical signals occupies the at least two optical frequency slots, and a vacant optical frequency slot or an optical frequency slot occupied by other optical signals exists between the two optical frequency slots; and sending the channel of optical signals.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: July 12, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Shiyi Cao
  • Publication number: 20160066071
    Abstract: The present invention provides a receiving device and an optical switching fabric apparatus, where the receiving device includes: multiple selecting modules, a fast optical switch connecting to each selecting module, an output module connecting to all the fast optical switches, and a receiver connecting to the output module, where the selecting module is configured to receive a multiwavelength optical signal, select and filter a first optical signal of a preset time segment in the multiwavelength optical signal; the fast optical switch is configured to select a second optical signal from the first optical signal filtered by the selecting module; the output module is configured to combine optical signals separately selected by all the fast optical switches into one optical burst signal; and the receiver is configured to perform optical-to-electrical conversion on the optical burst signal, and extract service data from an electrical signal.
    Type: Application
    Filed: November 11, 2015
    Publication date: March 3, 2016
    Inventor: Shiyi Cao
  • Patent number: 9143844
    Abstract: The present invention provides a data cross-connect system and method. The data cross-connect system comprises: at least two first stage cross-connect modules, at least one second stage cross-connect module and at least one third stage cross-connect module; the first stage cross-connect module comprises: a first stage cross-connect sub-module, a signal packaging sub-module, a first information generation sub-module and at least one transmitter. The present invention allows high rate interconnection between subracks, therefore the number of interconnecting optical fibers and connectors of the optical fibers can be reduced; in addition, the second stage cross-connect module applies cross-connecting directly in the optical layer, hence the number of cross-connect subracks can be reduced and the size and power consumption of the cross-connect subracks can also be reduced.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: September 22, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shiyi Cao
  • Patent number: 9008516
    Abstract: A method, an apparatus, and a system for transmitting information in a passive optical network are provided. The method mainly includes: obtaining OAM information that an RE device needs to report to an OLT device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device, and returning the downlink optical signal after the modulation processing to the OLT device; or, obtaining OAM information that an OLT device needs to deliver to an RE device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device to the RE device, and sending the downlink optical signal after the modulation processing to the RE device.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: April 14, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kun Li, Shiyi Cao, Jianlin Zhou, Min Ye
  • Publication number: 20140255035
    Abstract: An optical signal transmission method includes: obtaining a signal identifier of data to be sent; obtaining corresponding optical frequency slot distribution information according to the signal identifier; and determining a corresponding carrier according to the obtained optical frequency slot distribution information, using the determined carrier to carry the data to be sent to generate an optical signal, and sending the generated optical signal. The optical signal transmission method provided in the present invention does not fix the optical frequency slot distribution into a wavelength identifier, the number of optical frequency slots is not limited by the wavelength identifier field length, and the data to be sent can be transmitted in an optical network by being carried on the carrier determined according to multiple optical frequency slots.
    Type: Application
    Filed: May 21, 2014
    Publication date: September 11, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shiyi Cao
  • Publication number: 20140205297
    Abstract: A method, a system, and an apparatus for transmitting data information by using optical signals are disclosed. The method includes: selecting at least two optical carriers, where the at least two optical carriers correspond to at least two optical frequency slots, and a vacant optical frequency slot or an optical frequency slot occupied by other optical signals exists between the two optical frequency slots; modulating data information onto the at least two optical carriers to form a channel of optical signals, so that the channel of optical signals occupies the at least two optical frequency slots, and a vacant optical frequency slot or an optical frequency slot occupied by other optical signals exists between the two optical frequency slots; and sending the channel of optical signals.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 24, 2014
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Shiyi CAO
  • Publication number: 20140161462
    Abstract: The present invention relates to a method, an apparatus, and a system for processing a flexible-rate signal. A signal from a client side is encapsulated to n optical channel data unit ODU signals. The n ODU signals are encapsulated to a flexible optical channel transport unit OTU signal. A nominal bit rate of the flexible OTU signal varies according to a value of n and the n is an integer greater than or equal to 1.
    Type: Application
    Filed: February 13, 2014
    Publication date: June 12, 2014
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Shiyi Cao
  • Publication number: 20140140697
    Abstract: The present invention provides a data cross-connect system and method. The data cross-connect system comprises: at least two first stage cross-connect modules, at least one second stage cross-connect module and at least one third stage cross-connect module; the first stage cross-connect module comprises: a first stage cross-connect sub-module, a signal packaging sub-module, a first information generation sub-module and at least one transmitter. The present invention allows high rate interconnection between subracks, therefore the number of interconnecting optical fibers and connectors of the optical fibers can be reduced; in addition, the second stage cross-connect module applies cross-connecting directly in the optical layer, hence the number of cross-connect subracks can be reduced and the size and power consumption of the cross-connect subracks can also be reduced.
    Type: Application
    Filed: January 24, 2014
    Publication date: May 22, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shiyi CAO
  • Patent number: 8705962
    Abstract: A data transmission method, a data transmission system and a data processing node are provided to improve the resource utilization. The data transmission method includes the following steps: a second data processing node receives control information sent from a first data processing node through a preset control channel, where the control information includes at least bandwidth information of a data channel for sending optical burst data and corresponds to the service information of optical burst data of the first data processing node; the second data processing node controls the transmission of pending optical burst data according to the bandwidth information. A data processing node and a data transmission system are also provided.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: April 22, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shiyi Cao
  • Patent number: 8509617
    Abstract: A node, a data processing system, and a data processing method are provided. The node includes a control module, adapted to generate synchronization information and Optical Burst (OB) configuration information; at least one synchronization processing module, adapted to perform a synchronization process on OB paths at a plurality of wavelengths according to the synchronization information; and a cross-connection module, adapted to perform, a cross-connection process on the OB paths, on which the synchronization process has been performed. The data processing system includes at least two nodes, where the nodes are connected through OB paths at one or more wavelengths, and the nodes are adapted to transfer service data through the OB paths. The technical solutions can reduce volume, power consumption, and costs of the nodes, and avoid a problem of generation of data conflict on an optical layer due to lack of optical buffers in all optical switching.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: August 13, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shiyi Cao
  • Publication number: 20120121258
    Abstract: A method, an apparatus, and a system for transmitting information in a passive optical network are provided. The method mainly includes: obtaining OAM information that an RE device needs to report to an OLT device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device, and returning the downlink optical signal after the modulation processing to the OLT device; or, obtaining OAM information that an OLT device needs to deliver to an RE device, performing modulation processing, according to the OAM information, on a downlink optical signal sent by the OLT device to the RE device, and sending the downlink optical signal after the modulation processing to the RE device.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Kun Li, Shiyi Cao, Jianlin Zhou, Min Ye
  • Publication number: 20110097090
    Abstract: A node, a data processing system, and a data processing method are provided. The node includes a control module, adapted to generate synchronization information and Optical Burst (OB) configuration information; at least one synchronization processing module, adapted to perform a synchronization process on OB paths at a plurality of wavelengths according to the synchronization information; and a cross-connection module, adapted to perform, a cross-connection process on the OB paths, on which the synchronization process has been performed. The data processing system includes at least two nodes, where the nodes are connected through OB paths at one or more wavelengths, and the nodes are adapted to transfer service data through the OB paths. The technical solutions can reduce volume, power consumption, and costs of the nodes, and avoid a problem of generation of data conflict on an optical layer due to lack of optical buffers in all optical switching.
    Type: Application
    Filed: December 29, 2010
    Publication date: April 28, 2011
    Inventor: Shiyi Cao
  • Publication number: 20110020004
    Abstract: A data transmission method, a data transmission system and a data processing node are provided to improve the resource utilization. The data transmission method includes the following steps: a second data processing node receives control information sent from a first data processing node through a preset control channel, where the control information includes at least bandwidth information of a data channel for sending optical burst data and corresponds to the service information of optical burst data of the first data processing node; the second data processing node controls the transmission of pending optical burst data according to the bandwidth information. A data processing node and a data transmission system are also provided.
    Type: Application
    Filed: October 1, 2010
    Publication date: January 27, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Shiyi CAO