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公开(公告)号：US20150195333A1
公开(公告)日：2015-07-09
申请号：US14665900
申请日：2015-03-23
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Alan L. Glasser , Andrew G. Gauld , Vijay Gopalakrishnan , John F. Lucas , Kadangode K. Ramakrishnan
CPC classification number: H04L65/1069 , H04L12/18 , H04L47/15 , H04L49/201 , H04L65/4076 , H04L65/60 , H04L67/02 , H04L67/1008 , H04L67/1014 , H04L67/42 , H04L69/16 , H04N21/26275 , H04N21/6405 , H04W56/001 , H04W72/005
Abstract: A content monitor includes a processor that at least receives requests from a plurality of clients for content, instructs each client to retry their respective request at a first later time if the request is received before a first time, counts the requests to determine if a number of the requests exceeds a threshold if the request is received before a second time, instructs each client to retry their respective request at a second later time if the counted number of requests does not exceed a first threshold, instructs each client to join a multicast group to receive the content when the number of requests exceeds the first threshold, and counts a number of late clients joining the multicast group after a first portion of the content has been sent to the multicast group.
Abstract translation: 内容监视器包括处理器，其至少接收来自多个客户机的内容的请求，指示每个客户端在第一时间之前在第一时间接收到请求以后，重新尝试其各自的请求，对该请求进行计数，以确定数字 如果请求在第二次之前被接收，则请求超过阈值，如果所计数的请求数不超过第一阈值，则指示每个客户端在稍后的时间重试其各自的请求，指示每个客户端加入多播组 当请求数量超过第一阈值时接收内容，并且在内容的第一部分已经被发送到多播组之后对加入多播组的较晚客户端的数量进行计数。
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公开(公告)号：US20240348852A1
公开(公告)日：2024-10-17
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: H04N21/262 , H04N21/2387 , H04N21/2662
CPC classification number: H04N21/26258 , H04N21/2387 , 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：US12010504B2
公开(公告)日：2024-06-11
申请号：US17893231
申请日：2022-08-23
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Manuel Briand , Vijay Gopalakrishnan
IPC: H04N21/233 , H04N21/218 , H04S7/00
CPC classification number: H04S7/303 , H04N21/21805 , H04N21/233 , H04S2400/11
Abstract: Aspects of the subject disclosure may include, for example, a method for spherical video streaming over a network by a processing system including a processor, the method including prefetching audio data for rendering the spherical video; determining whether there is a single source or a plurality of sources of audio in the audio data; responsive to a determination that there is only one dominant source of the audio in the audio data, prefetching video data in a field of view centered on spatial coordinates of the dominant source of audio; responsive to a determination that there is the plurality of sources of the audio in the audio data, sorting the plurality of sources of the audio according to an estimated sound source energy for each source in the plurality of sources, thereby creating a sorted list of the plurality of sources; and prefetching video data in plural fields of view centered on spatial coordinates of each audio source in the sorted list of the plurality of sources, wherein the prefetching is performed in an order corresponding to the sorted list, and wherein the prefetching occurs within an available bandwidth of the network. Other embodiments are disclosed.
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公开(公告)号：US20240155423A1
公开(公告)日：2024-05-09
申请号：US17982695
申请日：2022-11-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Emir Halepovic , Vijay Gopalakrishnan
CPC classification number: H04W28/0289 , H04W24/08
Abstract: Aspects of the subject disclosure may include, for example, a method that includes obtaining media content from a content provider via a communication network that includes cells each associated with user equipment devices (UEs); obtaining information from a network element of the communication network, where the information includes cell load data for each of the cells and mapping data for the cells and associated UEs, and is collected by the network element in real time; determining that a cell is congested based on the information; performing, for a UE of the congested cell, a congestion shaping (CS) procedure that includes a shaping level for a media content flow associated with that UE; and adjusting the CS procedure based on additional information provided by the network element in real time or near-real time. Other embodiments are disclosed.
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公开(公告)号：US11641499B2
公开(公告)日：2023-05-02
申请号：US17513532
申请日：2021-10-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Matteo Varvello , Vijay Gopalakrishnan
IPC: H04N21/25 , H04N5/232 , H04N21/414 , H04N21/2343 , H04N21/442 , H04N21/81
Abstract: Aspects of the subject disclosure may include, for example, a method including providing a video presentation to user devices. A latency related to the video presentation is determined for each device; a high-latency user device is identified having greater latency than other, low-latency devices. Field of view information is analyzed for each of the low-latency devices; based on the analyzing, a field of view of the high-latency user device is predicted. In accordance with the predicting, a predicted viewing map for the high-latency user device is generated. The video presentation for the high-latency user device is adjusted based on the predicted viewing map. Other embodiments are disclosed.
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Patent Agency Ranking
公开(公告)号：US11632410B2
公开(公告)日：2023-04-18
申请号：US17231156
申请日：2021-04-15
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bo Han , Sassan Pejhan , Vijay Gopalakrishnan
Abstract: Aspects of the subject disclosure may include, for example, obtaining live video content from equipment of a media content provider, determining priority content within the live video content; segmenting the live video content into a plurality of tiles according to the priority content, and transcoding the live video content according to a type of client device. Further embodiments include determining an encoding schedule for the plurality of tiles according to the priority content, encoding the plurality of tiles according to the encoding schedule, and providing the plurality of tiles to the client device. Other embodiments are disclosed.
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公开(公告)号：US20230037630A1
公开(公告)日：2023-02-09
申请号：US17969781
申请日：2022-10-20
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Rittwik Jana , Jeffrey Erman , Vijay Gopalakrishnan , Emir Halepovic , Rakesh Sinha , Xuan Kelvin Zou
Abstract: Aspects of the subject disclosure may include, for example, obtaining predicted available bandwidths for an end user device, monitoring buffer occupancy of a buffer of the end user device, determining bit rates for portions of media content according to the predicted available bandwidths and according to the buffer occupancy, and adjusting bit rates for portions of media content according to the predicted available bandwidths and according to the buffer occupancy during streaming of the media content to the end user device over a wireless network. Other embodiments are disclosed.
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公开(公告)号：US11563539B2
公开(公告)日：2023-01-24
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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公开(公告)号：US11539590B2
公开(公告)日：2022-12-27
申请号：US17063808
申请日：2020-10-06
IPC: H04L12/24 , H04L41/0866 , H04L41/14 , H04L41/0893
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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公开(公告)号：US11533220B2
公开(公告)日：2022-12-20
申请号：US17101280
申请日：2020-11-23
Inventor： Bo Han , Vijay Gopalakrishnan , Marco Platania , Zhi-Li Zhang , Yang Zhang
IPC: H04L41/0668 , H04L67/1087 , H04L49/35 , H04L67/1042 , H04L45/64 , H04L67/1097 , H04L67/104
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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