公开(公告)号：US12167066B2

公开(公告)日：2024-12-10

申请号：US18067282

申请日：2022-12-16

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

Inventor： Bo Han ,  Zhengye Liu ,  Chenfei Gao

IPC: H04N21/422 ,  H04N21/44 ,  H04N21/458 ,  H04N21/466 ,  H04N21/81

Abstract: Aspects of the subject disclosure may include, for example, obtaining one or more signals, the one or more signals being based upon brain activity of a viewer while the viewer is viewing media content; predicting, based upon the one or more signals, a first predicted desired viewport of the viewer; obtaining head movement data associated with the media content; predicting, based upon the head movement data, a second predicted desired viewport of the viewer; comparing the first predicted desired viewport to the second predicted desired viewport, resulting in a comparison; and determining, based upon the comparison, to use the first predicted desired viewport to facilitate obtaining a first subsequent portion of the media content or to use the second predicted desired viewport to facilitate obtaining a second subsequent portion of the media content. Other embodiments are disclosed.

公开(公告)号：US20230188716A1

公开(公告)日：2023-06-15

申请号：US18165317

申请日：2023-02-06

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

Inventor： Bo Han ,  Tan Xu ,  Zhengye Liu

IPC: H04N19/119 ,  H04N19/20 ,  H04N19/597 ,  G06N20/00 ,  H04N19/176 ,  G06N5/04 ,  H04N19/162

CPC classification number: H04N19/119 ,  H04N19/20 ,  H04N19/597 ,  G06N20/00 ,  H04N19/176 ,  G06N5/04 ,  H04N19/162

Abstract: In one example, a processing system including at least one processor may obtain a predicted viewport of a mobile computing device for an immersive visual stream, identify a first plurality of blocks of a frame of the immersive visual stream that are associated with the predicted viewport, encode the first plurality of blocks at a first encoding quality level, and encode a second plurality of blocks of the frame at a second encoding quality level, where the second encoding quality level is associated with a lesser visual quality as compared to the first encoding quality level and where the second plurality of blocks are outside of the predicted viewport. The processing system may then transmit the frame having the first plurality of blocks encoded at the first encoding quality level and the second plurality of blocks encoded at the second encoding quality level to the mobile computing device.

公开(公告)号：US20230127439A1

公开(公告)日：2023-04-27

申请号：US18068505

申请日：2022-12-19

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

Inventor： Zhengye Liu ,  Donglin Hu ,  Jin Wang

IPC: H04L9/40 ,  G06N3/08 ,  H04L47/2483 ,  H04L47/2441

Abstract: A method includes obtaining a first plurality of encrypted traffic flows traversing a communication network, performing a first classification, wherein a result of the first classification identifies a traffic type associated with each encrypted traffic flow of the first plurality of encrypted traffic flows, and wherein the first classification is based on a traffic pattern of the each encrypted traffic flow, performing a second classification, wherein a result of the second classification identifies a traffic type associated with each server name indication from which the first plurality of encrypted traffic flows is associated, and wherein the second classification is based on the result of the first classification, and performing a third classification identifying a traffic type associated with each encrypted traffic flow of the first plurality of encrypted traffic flows, wherein the third classification is based on a combination of the results of the first classification and the second classification.

公开(公告)号：US11558653B2

公开(公告)日：2023-01-17

申请号：US17244059

申请日：2021-04-29

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

Inventor： Bo Han ,  Zhengye Liu ,  Chenfei Gao

IPC: H04N21/422 ,  H04N21/81 ,  H04N21/44 ,  H04N21/458 ,  H04N21/466

Abstract: Aspects of the subject disclosure may include, for example, obtaining one or more signals, the one or more signals being based upon brain activity of a viewer while the viewer is viewing media content; predicting, based upon the one or more signals, a first predicted desired viewport of the viewer; obtaining head movement data associated with the media content; predicting, based upon the head movement data, a second predicted desired viewport of the viewer; comparing the first predicted desired viewport to the second predicted desired viewport, resulting in a comparison; and determining, based upon the comparison, to use the first predicted desired viewport to facilitate obtaining a first subsequent portion of the media content or to use the second predicted desired viewport to facilitate obtaining a second subsequent portion of the media content. Other embodiments are disclosed.

公开(公告)号：US11533524B2

公开(公告)日：2022-12-20

申请号：US17392302

申请日：2021-08-03

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

Inventor： Rajarajan Sivaraj ,  Zhengye Liu ,  Jin Wang ,  Yali Liu

IPC: H04N21/238 ,  H04N21/24 ,  H04N21/44 ,  H04L47/193 ,  H04L65/80

Abstract: Aspects of the subject disclosure may include, for example, a method including monitoring a video session to determine key performance indicators for cross-layer interactions between a network providing video session video data and user equipment receiving the video session video data, wherein the key performance indicators include a transmission control protocol congestion window size that corresponds to a video chunk requested by the user equipment, and a radio access network throughput of a download of the video chunk requested by the user equipment, and determining a quality of service for the user equipment during the video session according to a residual length of content in a playback buffer for the user equipment based on the transmission control protocol congestion window size, and the radio access network throughput. Other embodiments are disclosed.

公开(公告)号：US11429891B2

公开(公告)日：2022-08-30

申请号：US15914057

申请日：2018-03-07

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

Inventor： Yali Liu ,  Jin Wang ,  Zhengye Liu ,  Bruce Schine

IPC: G06N20/00 ,  H04N21/4408 ,  H04N21/44 ,  H04L9/40

Abstract: Aspects of the subject disclosure may include, for example, a processing system that performs operations including collecting encrypted network traffic flow data from user interaction with an application, deriving a first set of traffic feature vectors from the encrypted network traffic flow data collected, training a machine learning algorithm on the first set of traffic feature vectors to classify each traffic feature vector in the first set of traffic feature vectors as associated with a type of the application or not associated with the type of the application, and classifying whether an encrypted network traffic flow as the type of the application by applying the machine learning algorithm to a traffic feature vector of the encrypted network traffic flow. Other embodiments are disclosed.

公开(公告)号：US11349887B2

公开(公告)日：2022-05-31

申请号：US16548904

申请日：2019-08-23

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

Inventor： Yongdong Zhao ,  Yali Liu ,  Zhengye Liu ,  Zuxian Guo

IPC: H04L65/1083 ,  H04L65/60 ,  H04L67/02 ,  H04L67/06

Abstract: In one example, the present disclosure describes a device, computer-readable medium, and method for estimating the streaming rate at which data is delivered over a network. For instance, in one example, a data packet is intercepted from a data streaming session conducted between a first device and a second device connected over a network. A size of a file segment contained in the data packet is calculated. The file segment corresponds to a portion of an item of multimedia content being delivered via the data streaming session. The encoding rate of the data streaming session is then calculated based at least in part on the size of the file segment.

公开(公告)号：US11343586B2

公开(公告)日：2022-05-24

申请号：US16932089

申请日：2020-07-17

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

Inventor： Zhengye Liu ,  Xidong Wu ,  Jin Wang ,  Xiaojun Tang ,  Mark Brady

IPC: H04N21/643 ,  H04N21/234 ,  H04N21/222 ,  H04N21/2187 ,  H04N21/2343 ,  H04N21/262 ,  H04N21/6587 ,  H04N21/845

Abstract: Aspects of the subject disclosure may include, for example, a machine-readable storage medium, including executable instructions that, when executed by a processing system including a processor, facilitate performance of operations that include assuming control of a video content transfer between a video server and a video client for HTTP traffic responsive to determining the HTTP traffic is for video content, generating a video transfer rate selection and a video transfer resolution selection for a requested video chunk of a time slot of the video content, generating an optimized manifest file for the requested video chunk, and publishing the optimized manifest file to the video client, wherein the video client request the requested video chunk from the video server based on the optimized manifest. Other embodiments are disclosed.

公开(公告)号：US20220086470A1

公开(公告)日：2022-03-17

申请号：US17456873

申请日：2021-11-29

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

Inventor： Bo Han ,  Zhengye Liu ,  Shu Shi

IPC: H04N19/40 ,  H04N19/597 ,  G06T3/00

Abstract: In one example, a processing system including at least one processor may obtain viewport information of a mobile computing device associated with a panoramic video, map the viewport information to a plurality of blocks of a frame of the panoramic video in accordance with a cube map projection of the frame, encode the plurality of blocks into a projected frame, and transmit the projected frame to the mobile computing device. In another example, a processing system of a mobile computing device including at least one processor may obtain viewport information of the device associated with a panoramic video, transmit to a server the viewport information, obtain from the server a projected frame of the panoramic video comprising a plurality of blocks of a frame of the panoramic video that are associated with the viewport information in accordance with a cube map projection of the frame, and buffer the projected frame.

公开(公告)号：US20210266247A1

公开(公告)日：2021-08-26

申请号：US17314552

申请日：2021-05-07

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

Inventor： Rajarajan Sivaraj ,  Varun Gupta ,  Dhruv Gupta ,  Rittwik Jana ,  Jin Wang ,  Laurie Bigler ,  Weihua Ye ,  Zhengye Liu

IPC: H04L12/26 ,  H04L12/24 ,  G06N20/00 ,  H04L5/00

Abstract: The described technology is generally directed towards reducing latency in a wireless communications network. Radio access network latency data corresponding to a measured latency impact criterion is obtained by a network device of a wireless network. Based on the radio access network latency data, latency guidance data usable by the radio network device to achieve a reduction in communication latency that is experienced by a user equipment is predicted, e.g., by a learned model. The latency guidance data can be used to facilitate a reduction in the communication latency that is experienced by a user equipment.