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公开(公告)号:US20220007234A1
公开(公告)日:2022-01-06
申请号:US17196163
申请日:2021-03-09
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Kartik Pandit , Shweta Vachhani , Tzuu-Yi Wang , Steven A. Monetti , Kenichi Futamura , Simon Tse , Narayan Padi
Abstract: The technologies described herein are generally directed to centralized management of wireless relay node equipment in a fifth generation (5G) or other next generation networks. In accordance with one or more embodiments, a method described herein can include facilitating identifying a connection between first network equipment and second network equipment, the first network equipment being connected to a user equipment and the second network equipment. In embodiments, the method can further include facilitating monitoring the connection between the first network equipment and the second network equipment, resulting in monitoring data, wherein the second network equipment is communicatively coupled to backhaul network equipment, and with the user equipment being communicatively coupled to the backhaul network equipment via the second network equipment. Further, based on the monitoring data, adjusting, by the centralized controller system, a characteristic of the connection, in accordance with embodiments.
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公开(公告)号:US10887019B2
公开(公告)日:2021-01-05
申请号:US16733844
申请日:2020-01-03
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Gagan Choudhury , Kathleen Meier-Hellstern , Alvin Goddard , Narayan Padi , Simon Tse , Tzuu-Yi Wang , Kathleen Tse , Martin Birk
Abstract: A software-defined network multi-layer controller (SDN-MLC) may communicate with multiple layers of a telecommunication network. The SDN-MLC may have an optimization algorithm that helps manage, in near real-time, the multiple layers of the telecommunication network.
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公开(公告)号:US10673957B2
公开(公告)日:2020-06-02
申请号:US16021363
申请日:2018-06-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Simon Tse , Alvin Goddard , Catherine Ferraro , Gagan Choudhury , Narayan Padi , Lynn Rivera
Abstract: In one example, a method for monitoring the state and health of a centralized software defined networking controller includes detecting, by a standby software defined networking controller, when a number of path computation client sessions reported by an active software defined networking controller fails to match an expected number; verifying, by the standby software defined networking controller after expiration of a predefined delay implemented after the detecting, that the number of path computation client sessions reported by the active software defined networking controller still fails to match the expected number; and assuming, by the standby software defined networking controller after the verifying, a role of the active software defined networking controller.
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公开(公告)号:US20250088458A1
公开(公告)日:2025-03-13
申请号:US18955257
申请日:2024-11-21
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Narayan Padi , Shweta Vachhani , Aswatnarayan Raghuram , Juby J. Chacko , Harpreet Ahluwalia , Kenichi Futamura , Gagan Choudhury , Alvin C. Goddard
IPC: H04L45/28 , H04L43/0882 , H04L43/16
Abstract: Aspects of the subject disclosure may include, for example, obtaining for a first path carrying first network traffic a corresponding first alternate path; obtaining for a second path carrying second network traffic a corresponding second alternate path, at least a first portion of the first alternate path being the same as at least a second portion of the second alternate path; responsive to a first detected failure on the first path, causing communication of first re-directed network traffic via the first alternate path instead of via the first path; responsive to a second detected failure on the second path, detecting whether total traffic, including the first re-directed network traffic, on the first portion of the first alternate path meets a threshold; responsive to the detected meeting of the threshold, obtaining for the second path a corresponding back-up alternate path; and causing communication of second re-directed network traffic via the back-up alternative path instead of via the second path. Other embodiments are disclosed.
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公开(公告)号:US12237996B2
公开(公告)日:2025-02-25
申请号:US18511669
申请日:2023-11-16
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Narayan Padi , Gagan Choudhury , Kenichi Futamura , Shweta Vachhani , Alvin C. Goddard , Timothy E. Gallivan , Harpreet Ahluwalia
IPC: H04M3/00 , H04L41/0659 , H04L45/24 , H04L45/28
Abstract: Aspects of the subject disclosure may include, for example, generating a set of SRLGs associated with a set of link bundles, wherein the set of SRLGs comprises for each SRLG in the set of SRLGs an indication for each failed link bundle in a particular SRLG a respective bandwidth failure fraction, and wherein for at least one of the failed link bundles the failure is less than a complete failure; generating a set of dominance relationships among the SRLGs in the set of SRLGs, and generating, based at least in part upon the set of SRLGs and the set of dominance relationships a packed set of SRLGs, wherein the packed set of SRLGs comprises a subset of the set of SRLGs. Other embodiments are disclosed.
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公开(公告)号:US20200007236A1
公开(公告)日:2020-01-02
申请号:US16022212
申请日:2018-06-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Gagan Choudhury , Kathleen Meier-Hellstern , Alvin Goddard , Narayan Padi , Simon Tse , Tzuu-Yi Wang , Kathleen Tse , Martin Birk
Abstract: A software-defined network multi-layer controller (SDN-MLC) may communicate with multiple layers of a telecommunication network. The SDN-MLC may have an optimization algorithm that helps manage, in near real-time, the multiple layers of the telecommunication network.
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公开(公告)号:US20190393961A1
公开(公告)日:2019-12-26
申请号:US16291169
申请日:2019-03-04
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Gagan Choudhury , Simon Tse , Kathleen Meier-Hellstern , Narayan Padi , Richard Koch
Abstract: A software-defined network multi-layer controller (SDN-MLC) may communicate with multiple layers of a telecommunication network. The SDN-MLC may have an optimization algorithm that helps in capacity planning of the telecommunications based on the management of multiple layers of the telecommunication network.
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公开(公告)号:US20190190819A1
公开(公告)日:2019-06-20
申请号:US15845280
申请日:2017-12-18
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Gagan Choudhury , Kang Xi , Simon Tse , Narayan Padi , Alvin Goddard , Aswatnarayan Raghuram
IPC: H04L12/721 , H04L12/723 , H04L12/771 , H04L12/801 , H04L12/803 , H04L12/851 , H04L12/24
CPC classification number: H04L45/38 , H04L41/0896 , H04L41/145 , H04L45/22 , H04L45/28 , H04L45/42 , H04L45/50 , H04L45/56 , H04L45/64 , H04L47/11 , H04L47/122 , H04L47/2441
Abstract: Concepts and technologies disclosed herein are directed to deadlock-free traffic rerouting in software-defined networking (“SDN”) networks have been disclosed herein. According to one aspect of the concepts and technologies disclosed herein, a centralized SDN controller can determine that a packet flow along a path within at least a portion of a network is to be rerouted from the path to a new path. The centralized SDN controller can initiate a reroute of the packet flow to the new path. The centralized SDN controller can request a bandwidth for the new path. The bandwidth can be determined such that bandwidth oversubscription on the new path is avoided. In response to the packet flow settling on the new path, the centralized SDN controller can adjust a requested bandwidth of the packet flow to a desired value to complete the reroute of the packet flow from the path to the new path.
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公开(公告)号:US12184538B2
公开(公告)日:2024-12-31
申请号:US17672388
申请日:2022-02-15
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Narayan Padi , Shweta Vachhani , Aswatnarayan Raghuram , Juby J. Chacko , Harpreet Ahluwalia , Kenichi Futamura , Gagan Choudhury , Alvin C. Goddard
IPC: H04L45/28 , H04L43/0882 , H04L43/16
Abstract: Aspects of the subject disclosure may include, for example, obtaining for a first path carrying first network traffic a corresponding first alternate path; obtaining for a second path carrying second network traffic a corresponding second alternate path, at least a first portion of the first alternate path being the same as at least a second portion of the second alternate path; responsive to a first detected failure on the first path, causing communication of first re-directed network traffic via the first alternate path instead of via the first path; responsive to a second detected failure on the second path, detecting whether total traffic, including the first re-directed network traffic, on the first portion of the first alternate path meets a threshold; responsive to the detected meeting of the threshold, obtaining for the second path a corresponding back-up alternate path; and causing communication of second re-directed network traffic via the back-up alternative path instead of via the second path. Other embodiments are disclosed.
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公开(公告)号:US20240098017A1
公开(公告)日:2024-03-21
申请号:US18511669
申请日:2023-11-16
Applicant: AT&T Intellectual Property I, L.P.
Inventor: Narayan Padi , Gagan Choudhury , Kenichi Futamura , Shweta Vachhani , Alvin C. Goddard , Timothy E. Gallivan , Harpreet Ahluwalia
IPC: H04L45/24 , H04L41/0659 , H04L45/28
CPC classification number: H04L45/245 , H04L41/0659 , H04L45/28
Abstract: Aspects of the subject disclosure may include, for example, generating a set of SRLGs associated with a set of link bundles, wherein the set of SRLGs comprises for each SRLG in the set of SRLGs an indication for each failed link bundle in a particular SRLG a respective bandwidth failure fraction, and wherein for at least one of the failed link bundles the failure is less than a complete failure; generating a set of dominance relationships among the SRLGs in the set of SRLGs, and generating, based at least in part upon the set of SRLGs and the set of dominance relationships a packed set of SRLGs, wherein the packed set of SRLGs comprises a subset of the set of SRLGs. Other embodiments are disclosed.
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