Patents by Inventor Hongbiao Zhang
Hongbiao Zhang 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).
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Publication number: 20240056270Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to schedule individual orthogonal frequency-division multiple access (OFDMA) resources on an upstream channel to serve a data transmission request from a downstream device. A schedule for a set of available resources on the upstream channel to serve the data transmission request is generated, based on a dynamic bit loading profile, including generating data indicative of a first bit loading profile for a first set of resources from the set of available resources for a first burst, and data indicative of a second bit loading profile for a second set of resources from the set of available resources for a second burst. The schedule is transmitted to a downstream device, such that the downstream device is configured to encode the first burst using the first bit loading profile and the second burst using the second bit loading profile.Type: ApplicationFiled: June 14, 2023Publication date: February 15, 2024Applicant: Casa Systems, Inc.Inventors: Hongbiao Zhang, Chain Lee, Yanbo Yuan, Tao Yu, Weidong Chen
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Patent number: 11728956Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to schedule individual orthogonal frequency-division multiple access (OFDMA) resources on an upstream channel to serve a data transmission request from a downstream device. A schedule for a set of available resources on the upstream channel to serve the data transmission request is generated, based on a dynamic bit loading profile, including generating data indicative of a first bit loading profile for a first set of resources from the set of available resources for a first burst, and data indicative of a second bit loading profile for a second set of resources from the set of available resources for a second burst. The schedule is transmitted to a downstream device, such that the downstream device is configured to encode the first burst using the first bit loading profile and the second burst using the second bit loading profile.Type: GrantFiled: February 16, 2022Date of Patent: August 15, 2023Assignee: Casa Systems, Inc.Inventors: Hongbiao Zhang, Chain Lee, Yanbo Yuan, Tao Yu, Weidong Chen
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Patent number: 11451325Abstract: A block generation method and apparatus, and a block receiving method and apparatus are disclosed. The block generation method includes: generating a first block and a second block, where the first block includes a first block unit, the second block includes a second block unit, a first indicator is configured in the first block unit, and the first indicator is used to indicate whether the second block unit is a control code; and sending the first block and the second block. According to this method, an indicator is configured in a block unit in the first block to indicate whether an adjacent block is a control code, so that a boundary between a control code and a data code is determined, thereby avoiding extra indication information for an indication and reducing overheads of the indication information.Type: GrantFiled: March 5, 2021Date of Patent: September 20, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongbiao Zhang, Shuai Xiao, Desheng Sun
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Publication number: 20220247523Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to schedule individual orthogonal frequency-division multiple access (OFDMA) resources on an upstream channel to serve a data transmission request from a downstream device. A schedule for a set of available resources on the upstream channel to serve the data transmission request is generated, based on a dynamic bit loading profile, including generating data indicative of a first bit loading profile for a first set of resources from the set of available resources for a first burst, and data indicative of a second bit loading profile for a second set of resources from the set of available resources for a second burst. The schedule is transmitted to a downstream device, such that the downstream device is configured to encode the first burst using the first bit loading profile and the second burst using the second bit loading profile.Type: ApplicationFiled: February 16, 2022Publication date: August 4, 2022Applicant: Casa Systems, Inc.Inventors: Hongbiao Zhang, Chain Lee, Yanbo Yuan, Tao Yu, Weidong Chen
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Patent number: 11283559Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to schedule individual orthogonal frequency-division multiple access (OFDMA) resources on an upstream channel to serve a data transmission request from a downstream device. A schedule for a set of available resources on the upstream channel to serve the data transmission request is generated, based on a dynamic bit loading profile, including generating data indicative of a first bit loading profile for a first set of resources from the set of available resources for a first burst, and data indicative of a second bit loading profile for a second set of resources from the set of available resources for a second burst. The schedule is transmitted to a downstream device, such that the downstream device is configured to encode the first burst using the first bit loading profile and the second burst using the second bit loading profile.Type: GrantFiled: June 16, 2020Date of Patent: March 22, 2022Assignee: Casa Systems, Inc.Inventors: Hongbiao Zhang, Chain Lee, Yanbo Yuan, Tao Yu, Weidong Chen
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Publication number: 20210194624Abstract: A block generation method and apparatus, and a block receiving method and apparatus are disclosed. The block generation method includes: generating a first block and a second block, where the first block includes a first block unit, the second block includes a second block unit, a first indicator is configured in the first block unit, and the first indicator is used to indicate whether the second block unit is a control code; and sending the first block and the second block. According to this method, an indicator is configured in a block unit in the first block to indicate whether an adjacent block is a control code, so that a boundary between a control code and a data code is determined, thereby avoiding extra indication information for an indication and reducing overheads of the indication information.Type: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Inventors: Hongbiao ZHANG, Shuai XIAO, Desheng SUN
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Publication number: 20200396031Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to schedule individual orthogonal frequency-division multiple access (OFDMA) resources on an upstream channel to serve a data transmission request from a downstream device. A schedule for a set of available resources on the upstream channel to serve the data transmission request is generated, based on a dynamic bit loading profile, including generating data indicative of a first bit loading profile for a first set of resources from the set of available resources for a first burst, and data indicative of a second bit loading profile for a second set of resources from the set of available resources for a second burst. The schedule is transmitted to a downstream device, such that the downstream device is configured to encode the first burst using the first bit loading profile and the second burst using the second bit loading profile.Type: ApplicationFiled: June 16, 2020Publication date: December 17, 2020Applicant: Casa Systems, Inc.Inventors: Hongbiao Zhang, Chain Lee, Yanbo Yuan, Tao Yu, Weidong Chen
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Patent number: 7020394Abstract: A method and apparatus for determining a shortest path between a source node and a destination node in an optical network of nodes interconnected with optical transmission links is disclosed. A wavelength graph is used to represent an optical network as a set of electronic nodes and optical channel nodes corresponding to the network nodes with a set of internal links and optical channel links. The electronic node represents the electronic switching fabric that interconnects OEO equipment within a physical node. A single-source shortest path algorithm (e.g., Dijkstra's algorithm) is applied to the wavelength graph to determine a shortest path. The transformation of the network representation to include the electronic node greatly reduces the number of links in the wavelength graph and significantly increases the computational efficiency.Type: GrantFiled: August 17, 2001Date of Patent: March 28, 2006Assignee: Quantum Bridge Communications, Inc.Inventors: Hongbiao Zhang, Frank J. Effenberger, Kyoo J. Lee
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Publication number: 20030035166Abstract: A method and apparatus for determining a shortest path between a source node and a destination node in an optical network of nodes interconnected with optical transmission links is disclosed. A wavelength graph is used to represent an optical network as a set of electronic nodes and optical channel nodes corresponding to the network nodes with a set of internal links and optical channel links. The electronic node represents the electronic switching fabric that interconnects OEO equipment within a physical node. A single-source shortest path algorithm (e.g., Dijkstra's algorithm) is applied to the wavelength graph to determine a shortest path. The transformation of the network representation to include the electronic node greatly reduces the number of links in the wavelength graph and significantly increases the computational efficiency.Type: ApplicationFiled: August 17, 2001Publication date: February 20, 2003Applicant: Quantum Bridge Communications, Inc.Inventors: Hongbiao Zhang, Frank J. Effenberger, Kyoo J. Lee