公开(公告)号：US20160286415A1

公开(公告)日：2016-09-29

申请号：US15179960

申请日：2016-06-10

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Alexandre Gerber ,  Zhuoqing Mao ,  Feng Qian ,  Subhabrata Sen ,  Oliver Spatscheck ,  Zhaoguang Wang

IPC: H04W24/02 ,  H04W52/02 ,  H04W72/04 ,  H04L29/06 ,  H04W4/18 ,  H04W76/06 ,  H04W40/00

CPC classification number: H04W24/02 ,  H04L43/16 ,  H04L69/28 ,  H04W4/185 ,  H04W40/005 ,  H04W52/0209 ,  H04W72/048 ,  H04W76/38 ,  H04W88/02 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

Abstract: Power and resource efficiency of a mobile network device are increased. In one aspect, a tail optimization protocol (TOP) enables cooperation between a mobile device and an associated radio access network to eliminate idle periods (e.g., tails) when possible. Various systems and methods described herein can leverage the ability of applications and/or their associated connections to accurately predict a long tail time, from which a mobile device can notify an associated cellular network on such an imminent tail in order to allow the cellular network to immediately release tail resources. Various other aspects provided herein realize TOP via fast dormancy and/or other similar notification mechanisms, which enable a handset or other device to notify a cellular network for immediate resource release.

Abstract translation: 移动网络设备的功率和资源效率提高。 在一个方面，尾部优化协议（TOP）使得移动设备和相关联的无线电接入网络之间的协作能够在可能时消除空闲时段（例如，尾部）。 本文描述的各种系统和方法可以利用应用和/或其相关连接的能力来精确地预测长尾时间，移动设备可以从该尾部时间通知相关联的蜂窝网络，以便允许蜂窝网络 立即释放尾部资源。 本文提供的各种其它方面通过快速休眠和/或其他类似的通知机制实现TOP，其使得手机或其他设备能够通知蜂窝网络以立即释放资源。

公开(公告)号：US20160142440A1

公开(公告)日：2016-05-19

申请号：US14547792

申请日：2014-11-19

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Feng Qian ,  Oliver Spatscheck ,  Subhabrata Sen

IPC: H04L29/06

CPC classification number: H04L63/166 ,  H04L29/06897 ,  H04L29/06965 ,  H04L63/0272 ,  H04L63/0281 ,  H04L63/0471 ,  H04L63/1408 ,  H04L63/1425 ,  H04L63/168 ,  H04L63/306

Abstract: A system for decrypts encrypted Secure Sockets Layer (SSL) data from packet traces without using private keys or a proxy. Decryption of encrypted SSL data is accomplished by intercepting a session key associated with a communication session transmitted from a user device to a server during handshaking between the user device and the server. The session key is then used to decrypt packet level traces of the communication session. The decrypted packet level traces are then used to measure traffic.

Abstract translation: 用于从数据包跟踪中解密加密的安全套接字层（SSL）数据而不使用私钥或代理的系统。 加密SSL数据的解密是通过在用户设备和服务器之间的握手期间拦截与从用户设备传送到服务器的通信会话相关联的会话密钥而实现的。 会话密钥然后用于解密通信会话的分组级跟踪。 然后，解密的分组级别跟踪用于测量流量。

公开(公告)号：US11627092B2

公开(公告)日：2023-04-11

申请号：US17106776

申请日：2020-11-30

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Rajarajan Sivaraj ,  Kittipat Apicharttrisorn ,  Bharath Balasubramanian ,  Rittwik Jana ,  Subhabrata Sen ,  Dhruv Gupta ,  Jin Wang

IPC: H04L47/36 ,  H04W28/06

Abstract: The technologies described herein are generally directed to modeling radio wave propagation in a fifth generation (5G) network or other next generation networks. For example, a method described herein can include, for a network application, identifying, by a system comprising a processor, a characteristic value of a performance characteristic associated with an uplink connection enabled via a network of a user equipment to application server equipment hosting the network application. The method can further include, based on the characteristic value and a criterion, selecting, by the system, a first packet size for the uplink connection. The method can further include communicating, by the system, to the user equipment, the first packet size for use with the uplink connection.

公开(公告)号：US20230069178A1

公开(公告)日：2023-03-02

申请号：US17463817

申请日：2021-09-01

Applicant: AT&T Intellectual Property I, L.P. ,  The University of Connecticut

Inventor： Subhabrata Sen ,  Bing Wang ,  Yanyuan Qin

IPC: H04L29/06 ,  H04L12/14 ,  H04L12/811

Abstract: Aspects of the subject disclosure may include, for example, embodiments that comprise obtaining a data budget associated with a communication session for streaming video content over a communication network from a video content server, determining a first portion of the data budget that is associated with a first segment of the video content, and obtaining quality information associated with the video content from the video content server over the communication network. Further embodiments can include identifying a first group of tracks for the first segment, and determining a first target quality for the first segment based on the first portion of the data budget and the quality information. Other embodiments are disclosed.

公开(公告)号：US20220232275A1

公开(公告)日：2022-07-21

申请号：US17657949

申请日：2022-04-04

Applicant: AT&T Intellectual Property I, L.P. ,  AT&T Mobility II LLC

Inventor： Subhabrata Sen ,  Eric Petajan ,  Shichang Xu

IPC: H04N21/2662 ,  H04N21/24 ,  H04N21/2343 ,  H04N21/232 ,  H04N21/236 ,  H04N19/10 ,  H04N19/154

Abstract: A processing system may obtain a downscaled version of a reference copy of a video, comprising a plurality of downscaled versions of a plurality of frames of the reference copy of the video, obtain a first recorded frame of a first variant of a plurality of variants associated with the reference copy of the video, where the plurality of variants comprises a plurality of copies of the video encoded at different bitrates, generate a first downscaled version of the first recorded frame, calculate a first plurality of image distances between the first downscaled version of the first recorded frame and the plurality of downscaled versions of the plurality of frames of the reference copy of the video, and determine a first frame index of the first recorded frame in accordance with a first least image distance from among the first plurality of image distances that is calculated.

公开(公告)号：US11277649B2

公开(公告)日：2022-03-15

申请号：US16560721

申请日：2019-09-04

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Subhabrata Sen ,  Shuai Hao ,  Yanyuan Qin ,  Bing Wang ,  Krishna R. Pattipati

IPC: H04N21/234 ,  H04L29/06 ,  H04N21/231 ,  H04N21/236 ,  H04N21/24 ,  H04N21/2662 ,  H04N21/643 ,  H04N21/258 ,  H04N21/845 ,  H04N21/262 ,  H04L65/60 ,  H04L65/65

Abstract: A processing system including at least one processor may obtain a selection of a desired perceptual quality for a video and selects a first video chunk from among a first plurality of video chunks, wherein the first plurality of video chunks is associated with a first time block of the video, wherein the selecting is based upon a manifest file of the video, wherein each video chunk of the first plurality of video chunks is associated with a respective perceptual quality and a respective encoding bitrate, wherein the first video chunk is part of a subset of the first plurality of video chunks for which the respective perceptual quality matches the desired perceptual quality within a predefined threshold tolerance, and wherein the respective encoding bitrate of the first video chunk is lower than a highest encoding bitrate associated with the subset of the first plurality of video chunks. The processing system may obtain the first video chunk from a server and store the first video chunk in a buffer.

公开(公告)号：US10735742B2

公开(公告)日：2020-08-04

申请号：US16202724

申请日：2018-11-28

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Eric Petajan ,  Subhabrata Sen ,  Emir Halepovic ,  Shichang Xu

IPC: H04N19/172 ,  H04N19/154 ,  H04N19/115

Abstract: A processing system may obtain a first frame of a first variant associated with a reference copy of a video, where a plurality of variants comprises copies of the video encoded at different bitrates, determine a frame number of the first frame from a visual overlay containing the first frame number, calculate a first image distance between the first frame and a frame of the reference copy having the frame number, determine, from among a plurality of image distances for frames of each variant having the frame number, a closest image distance to the first image distance, the plurality of image distances comprising image distances between frames of the variants and the frame of the reference copy having the frame number, and identify the first frame as being from the first variant in accordance with a variant associated with the first closest image distance.

公开(公告)号：US20200067852A1

公开(公告)日：2020-02-27

申请号：US16107550

申请日：2018-08-21

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Subhabrata Sen ,  Shuai Hao ,  Yanyuan Qin ,  Bing Wang ,  Krishna R. Pattipati

IPC: H04L12/861 ,  H04L29/06

Abstract: Aspects of the subject disclosure may include, for example, communicating with a source of streaming media, wherein the streaming media is variable bitrate encoded, wherein the streaming media comprises a first plurality of chunks, wherein each of the first plurality of chunks corresponds to a first portion of the streaming media, wherein the streaming media comprises a second plurality of chunks, wherein each of the second plurality of chunks corresponds to a second portion of the streaming media, wherein the streaming media comprises a third plurality of chunks, and wherein each of the third plurality of chunks corresponds to a third portion of the streaming media; obtaining, from the source, a first one of the first plurality of chunks; and determining which of the second plurality of chunks and third plurality of chunks to obtain. Other embodiments are disclosed.

公开(公告)号：US20190319831A1

公开(公告)日：2019-10-17

申请号：US16454989

申请日：2019-06-27

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Supratim Deb ,  Subhabrata Sen ,  Pramod Jamkhedkar

IPC: H04L12/24 ,  G06F16/248 ,  G06F16/245 ,  G06F16/2452

Abstract: A system for troubleshooting a network, the system comprising a virtual machine including a virtual central processor in communication with at least one memory, virtual machine including a knowledge base configured to store contextual information related to the network; a knowledge base manager in communication with the knowledge base, the knowledge base manager configured to collect at least one of contextual information and problem information from at least one data source on the network and populate the knowledge base; a problem monitor in communication with the knowledge base and the knowledge base manager, the problem monitor configured to receive the problem information from the knowledge base manager; a query evaluation engine in communication with the knowledge base and the problem monitor; an interface configured to receive a query; and a natural language query translator in communication with the interface and the query evaluation engine; wherein the natural language query translator is configured to provide a natural language query from the interface and transmit the query in a machine readable format to the query evaluation engine; wherein the query evaluation engine collects at least one of the contextual information in the knowledge base and the problem information in the problem manager relevant to the query and generate a recommendation list.

公开(公告)号：US20190289343A1

公开(公告)日：2019-09-19

申请号：US16429907

申请日：2019-06-03

Applicant: AT&T Mobility II LLC ,  AT&T Intellectual Property I, L.P.

Inventor： Eric D. Petajan ,  Emir Halepovic ,  Subhabrata Sen

IPC: H04N21/236 ,  G11B27/34

Abstract: Concepts and technologies are disclosed herein for adaptive bit rate mobile video objective testing. A system can receive a plurality of screen-capture frames, where each of the plurality of screen-capture frames corresponds to a respective frame of an adaptive bit rate video stream being displayed on a screen of a test device. The system can create a screen-capture video stream and determine that the screen-capture video stream corresponds to a reference video stream that is non-annotated. The system can obtain a reference video signature package, align the screen-capture video stream with the reference video stream using the reference video signature package, generate full reference video quality performance indicators, and determine delivery quality performance indicators for the screen-capture video stream. The system can join the full reference video quality performance indicators and the delivery quality performance indicators to form an objective quality of experience data structure.