公开(公告)号：US20240113953A1

公开(公告)日：2024-04-04

申请号：US17957326

申请日：2022-09-30

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

Inventor： Zhengye Liu ,  Yali Liu ,  Vanessa Tan

IPC: H04L43/067 ,  H04L43/0817 ,  H04L43/50

CPC classification number: H04L43/067 ,  H04L43/0817 ,  H04L43/50

Abstract: Estimation of network latency based on aggregated performance data is disclosed. End-to-end latency between endpoints can comprise protocol-induced latency, access network-induced, core-network latency, and network-distance-based latency. Network latency, e.g., network-distance-based latency, also referred to as topological latency, can correspond to communication path length between endpoints. Crowdsourcing of communication path performance information can enable estimation of topological latency, and derivatives thereof, such as topological distance. Crowdsourcing can be the practice of obtaining information or input into a task or project by enlisting the services of a large number of people, either paid or unpaid, e.g., collection of performance information. The disclosure illustrates estimation of protocol-induced latency, access network-induced, and core-network latency, such that they can be compensated for in end-to-end latency information, thereby enabling estimation of topological latency that can be employed in determining, initiating, etc., a network response operation that can affect change in a network.

公开(公告)号：US20230337040A1

公开(公告)日：2023-10-19

申请号：US17721600

申请日：2022-04-15

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

Inventor： Zhengye Liu ,  Yali Liu ,  Jin Wang ,  Raghvendra Savoor

IPC: H04W28/02 ,  H04W52/26

CPC classification number: H04W28/0242 ,  H04W28/0236 ,  H04W52/26

Abstract: Aspects of the subject disclosure may include, for example, detecting a loss of at least a part of a packet conveyed via a wireless link coupling a processing system and a user equipment, based on the detecting, identifying a cause of the loss as being due to one of a signal strength of a signal being less than a first threshold or an amount of data in a buffer exceeding a second threshold, resulting in an identification, and based on the identification, invoking an action. Other embodiments are disclosed.

公开(公告)号：US20230336794A1

公开(公告)日：2023-10-19

申请号：US17719620

申请日：2022-04-13

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

Inventor： Zhengye Liu ,  Yali Liu ,  Jin Wang ,  Raghvendra Savoor

IPC: H04L12/66 ,  H04N21/231 ,  H04N21/222 ,  H04N21/24

CPC classification number: H04N21/2223 ,  H04L12/66 ,  H04N21/23116 ,  H04N21/2402 ,  H04N21/2407

Abstract: Aspects of the subject disclosure may include, for example, a method including facilitating communications between a wide area network (WAN) and a local area network (LAN), executing an application mirror, associated with a media server coupled to the WAN, via an operating system at the residential gateway device, prefetching, via the application mirror, a plurality of prefetched media content from the media server according to a client application associated with the media server and operating at user device coupled to the LAN, storing, via the application mirror, the plurality of prefetched media content, determining, via the application mirror, that the plurality of prefetched media content includes a first media content, and responsive to the determining the plurality of prefetched media content includes the first media content, transmitting, via the application mirror, the first media content to the client application at the user device. Other embodiments are disclosed.

公开(公告)号：US11699103B2

公开(公告)日：2023-07-11

申请号：US17868465

申请日：2022-07-19

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

CPC classification number: G06N20/00 ,  H04L63/0428 ,  H04N21/44008 ,  H04N21/4408

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：US20230147907A1

公开(公告)日：2023-05-11

申请号：US18152548

申请日：2023-01-10

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

Inventor： Bo Han ,  Sassan Pejhan ,  Zhengye Liu

IPC: H04N21/44 ,  H04N21/442 ,  H04N21/414 ,  H04N21/81 ,  H04N21/4223

CPC classification number: H04N21/44016 ,  H04N21/44218 ,  H04N21/41407 ,  H04N21/812 ,  H04N21/4223

Abstract: Aspects of the subject disclosure may include, for example, embodiments include obtaining video content, the video content comprises a plurality of frames, monitoring, by an image sensor, a facial feature of a user to determine a visual focus of the user in relation to the video content, and detecting from a group of frames of the plurality of frames at least a reduction in movements of objects in the group of frames. Further embodiments include determining, according to the monitoring and the detecting, a measure of attention of the user within a region of the group of frames, determining that the measure of attention of the user within the region of the group of frames satisfies a threshold, and embedding in at least a portion of subsequent frames of the plurality of frames a visual advertisement in the region via a communication device. Other embodiments are disclosed.

公开(公告)号：US20230121616A1

公开(公告)日：2023-04-20

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 ,  H04N21/81 ,  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：US11575894B2

公开(公告)日：2023-02-07

申请号：US17810636

申请日：2022-07-04

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

Inventor： Bo Han ,  Tan Xu ,  Zhengye Liu

IPC: H04N19/597 ,  H04N19/167 ,  H04N19/119 ,  H04N19/20 ,  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：US11558648B2

公开(公告)日：2023-01-17

申请号：US17403049

申请日：2021-08-16

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

Inventor： Yali Liu ,  Zhengye Liu ,  Donglin Hu ,  Jin Wang

IPC: H04N21/25 ,  H04N21/238 ,  H04N21/258 ,  H04N21/24

Abstract: Aspects of the subject disclosure may include, for example, a method, including identifying recommended video clips for a user of a communication device according to a video viewing profile for the user and video subject matter information associated with a plurality of video clips, identifying an edge cloud server for facilitating network access by the communication device at a location, determining a reduced activity period for a data path between a video content server and the edge cloud server by comparing activity information for the data path and an activity threshold, directing the video content server to store the recommended video clips at the edge cloud server during the reduced activity period, and providing a listing of the recommended video clips to an application, where the communication device receives a video clip of the recommended video clips from the edge cloud server responsive to a selection of the video clip via the application. Other embodiments are disclosed.

公开(公告)号：US20220248105A1

公开(公告)日：2022-08-04

申请号：US17727344

申请日：2022-04-22

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：US11184461B2

公开(公告)日：2021-11-23

申请号：US16167792

申请日：2018-10-23

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

Inventor： Zhengye Liu ,  Bo Han ,  Jin Wang ,  Xidong Wu

IPC: G06F15/16 ,  H04L29/06 ,  G06T15/20 ,  H04N21/2662 ,  H04N19/597

Abstract: Aspects of the subject disclosure may include, for example, a method comprising obtaining media content; receiving a request from equipment of a user to view the media content; identifying a predicted field of view of the user; sending a base layer of the media content to the equipment of the user using a first stream; and sending a first enhancement layer of the predicted field of view to the equipment of the user using a second stream. The first stream and the second stream may utilize different protocols, different servers, different buffer sizes, and/or a combination thereof. While the first stream may include an entire 360 degrees of the base layer of the media content, the second stream may be limited to the first enhancement layer of the predicted field of view of the media content.