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公开(公告)号：US12273576B2
公开(公告)日：2025-04-08
申请号：US18300369
申请日：2023-04-13
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Theodore Karagioules , Emir Halepovic , Subhabrata Sen , Vijay Gopalakrishnan
IPC: H04N7/173 , H04N21/2387 , H04N21/262 , H04N21/2662
Abstract: A method includes acquiring a playlist identifying video files and an order in which the video files are to be played back during a video streaming session on an endpoint device, obtaining, from an operator of a communications network over which the video files are to be downloaded, a maximum value of a streaming parameter for the video streaming session, selecting a subsequent video file that is scheduled for playback after a playback of a currently playing video file, wherein the subsequent video file includes a plurality of chunks, selecting, for each chunk, a variant, such that a plurality of variants is selected in which each variant corresponds to one chunk of the plurality of chunks, wherein the selecting the variant is based on both the maximum value and a measured value for the streaming parameter, and downloading the plurality of variants to a local buffer of the endpoint device.
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公开(公告)号：US20220353557A1
公开(公告)日：2022-11-03
申请号：US17859107
申请日：2022-07-07
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Vijay Gopalakrishnan , Rittwik Jana
IPC: H04N21/231 , H04N21/222 , H04N21/234 , H04N21/258 , H04N21/218
Abstract: Aspects of the subject disclosure may include, for example, system for tile-based video streaming using a proxy executing at a mobile edge cloud, which adaptively offloads decoding and merging of video tiles from mobile devices to the mobile edge cloud. A processing system including the proxy communicates with a video server and a client device. The proxy receives a request for video content from a client device; the request includes historical field of view (FoV) information. The proxy predicts a client FoV, requests video tiles from the server, downloads the tiles from the server, generates a video chunk by decoding and merging the downloaded tiles, and delivers the video chunk to the client device. The client device performs local decoding and rendering of the generated video chunk. Other embodiments are disclosed.
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公开(公告)号：US11470360B2
公开(公告)日：2022-10-11
申请号：US17301719
申请日：2021-04-12
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Vijay Gopalakrishnan , Tan Xu
IPC: H04N21/218 , G06F3/01 , G06F3/04815 , H04N19/597 , G06N20/20 , H04N19/17
Abstract: A method for streaming a 360 degree video over a communications network, wherein the video is streamed in a plurality of chunks, includes selecting a prediction window during which to predict a field of view within the video, the field of view is expected to be visible by a viewer at a time of playback of a next chunk of the video, wherein a duration of the prediction window is based on at least one condition within the communications network, selecting a machine learning algorithm to predict the field of view based on a head movement of the viewer, wherein the machine learning algorithm is selected based on the duration of the prediction window, predicting the field of view based on the head movement of the viewer and the machine learning algorithm, identifying a tile of the next chunk that corresponds to the field of view, and downloading the tile.
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公开(公告)号：US20220172443A1
公开(公告)日：2022-06-02
申请号：US17674104
申请日：2022-02-17
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Vijay Gopalakrishnan , Jackson Jarrell Pair , Vikash Sharma
IPC: G06T19/00 , H04L67/131 , G06F3/01 , H04N21/2343 , H04N19/597 , G06F3/04815 , G06T15/20 , H04N21/218 , H04N21/234 , H04N21/81
Abstract: Aspects of the subject disclosure may include, for example, a process that analyzes image content of an immersive video frame and identifies a first group of segments of the immersive video frame based on the analysis. The segments collectively span an entire space portrayed by the immersive video frame and the first group of segments spans less than the entire space. A size of a display region of an immersive video viewer is determined that spans less than the entire space and a second group of segments is determined based on the first group of segments and the size of the display region. Transport of the second group of segments, spanning less than the entire space, is facilitated via a communication network to the immersive video viewer for presentation, without requiring transmission of all of the segments. Other embodiments are disclosed.
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公开(公告)号：US20220029888A1
公开(公告)日：2022-01-27
申请号：US17498160
申请日：2021-10-11
IPC: H04L12/24
Abstract: A system may assist with checking policy impact in a software-defined infrastructure environment. The system's data analysis may enable it to discover and quantify the impact of policies on software-defined infrastructure objects in the same or different layers.
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Patent Agency Ranking
公开(公告)号：US20210258117A1
公开(公告)日：2021-08-19
申请号：US17101015
申请日：2020-11-23
Inventor： Emir Halepovic , Vijay Gopalakrishnan , Hulya Seferoglu , Muhammad Usama Chaudhry , Shibin Mathew , Shanyu Zhou , Balajee Vamanan
Abstract: Concepts and technologies directed to agile transport for background traffic in cellular networks are disclosed herein. In various aspects, a system can include a processor and memory storing instructions that, upon execution, cause performance of operations. The operations can include determining a capacity of a communication path that communicatively couples a user equipment to a radio access network cell site. The operations can include identifying, from the radio access network cell site, a queue that is constructed for the user equipment. The operations can include assembling a plurality of probe burst packet sets from a background traffic flow. The operations can include probing the communication path for spare capacity using the plurality of probe burst packet sets and delivering the background traffic flow to the user equipment using the spare capacity while the communication path is not busy.
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7.发明授权公开(公告)号：US11019361B2
公开(公告)日：2021-05-25
申请号：US16102186
申请日：2018-08-13
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Shuai Hao , Vijay Gopalakrishnan
IPC: H04N19/597 , H04N5/232 , H04N19/164
Abstract: Aspects of the subject disclosure may include, for example, embodiments for selecting a first camera from one or more cameras communicatively coupled to a computing device. Further embodiments include adjusting a first hardware controller on the first camera in response to detecting a network condition of a communication network resulting in an adjusted first camera. Additional embodiments include capturing first video content with the adjusted first camera. Also, embodiments include transmitting the first video content to a video content server over the communication network. Other embodiments are disclosed.
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公开(公告)号：US20210105177A1
公开(公告)日：2021-04-08
申请号：US17101280
申请日：2020-11-23
Inventor： Bo Han , Vijay Gopalakrishnan , Marco Platania , Zhi-Li Zhang , Yang Zhang
IPC: H04L12/24 , H04L29/08 , H04L12/931
Abstract: The concepts and technologies disclosed herein are directed to a network-assisted Raft consensus protocol, referred to herein as “NetRaft.” According to one aspect of the concepts and technologies disclosed herein, a system can include a plurality of servers operating in a server cluster, and a plurality of P4 switches corresponding to the plurality of servers. Each server of the plurality of servers can include a back-end that executes a complete Raft algorithm to perform leader election, log replication, and log commitment of a Raft consensus algorithm. Each P4 switch of the plurality of P4 switches can include a front-end that executes a partial Raft algorithm to perform the log replication and the log commitment of the Raft consensus algorithm. The back-end can maintain a complete state for responding to requests that cannot be fulfilled by the front-end. The requests can include read requests and/or write requests.
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公开(公告)号：US10931979B2
公开(公告)日：2021-02-23
申请号：US16164128
申请日：2018-10-18
Inventor： Bo Han , Sassan Pejhan , Vijay Gopalakrishnan , Feng Qian
IPC: H04N21/218 , H04N5/232 , G06F3/01 , H04N21/262 , H04N19/114
Abstract: Aspects of the subject disclosure may include, for example, determining a first viewpoint in response to detecting a user's head movement in viewing video content, determining a capacity of a network, determining a tile schedule for receiving tiles from a server over the network according to the first viewpoint and the capacity of the network, and providing the tile schedule to the server over the network. The server schedules transmitting of the tiles according to the tile schedule and provides the tiles to the client device according to the tile schedule. In addition, embodiments include decoding the tiles according to a decoding schedule, buffering the decoded tiles in a decoded frame buffer, detecting a change in viewpoint from the first viewpoint to a second viewpoint, selecting a portion of the decoded tiles according to the second viewpoint, and presenting the selected tiles. Other embodiments are disclosed.
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公开(公告)号：US20210028990A1
公开(公告)日：2021-01-28
申请号：US17068780
申请日：2020-10-12
Inventor： Bo Han , Vijay Gopalakrishnan , Muhammad Bilal Anwer , Zhi-Li Zhang , Yang Zhang
IPC: H04L12/24 , H04L29/12 , G06F9/50 , G06F9/455 , H04L12/715
Abstract: Systems and methods are disclosed for parallelizing service function chains. A method comprises receiving a sequential service function chain comprising a plurality of network functions, receiving a plurality of operations, determining at least two network functions are capable of being parallelized, aggregating operations of the plurality of operations associated with the at least two network functions into a network function segment, determining whether another network function is capable of being parallelized with the network function segment, based on the determining: aggregating an operation associated with the another network function into the network function segment when the another network function is capable of being parallelized with the network function segment, or pushing the network function segment as a completed segment of a hybrid service function chain when the another network function is not capable of being parallelized with the network function segment, and implementing the hybrid service function chain.
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