公开(公告)号：US20210385005A1

公开(公告)日：2021-12-09

申请号：US17409730

申请日：2021-08-23

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

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

IPC: H04L1/00

Abstract: Devices, computer-readable media, and methods for selecting a type of transmission for an immersive visual stream based upon a latency estimate. For instance, a processing system including at least one processor may obtain a latency estimate for an immersive visual stream, determine whether the latency estimate exceeds a latency threshold for selecting a type of transmission for the immersive visual stream, and select the type of transmission for the immersive visual stream from among a field of view restricted type of transmission and a field of view plus out of scene type of transmission based upon the determining. When the latency estimate is determined to not exceed the latency threshold, the field of view restricted type of transmission is selected. When the latency estimate is determined to exceed the latency threshold, the field of view plus out of scene type of transmission is selected.

公开(公告)号：US11190786B2

公开(公告)日：2021-11-30

申请号：US16581047

申请日：2019-09-24

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：US20210360046A1

公开(公告)日：2021-11-18

申请号：US17387672

申请日：2021-07-28

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

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Jackson Jarrell Pair ,  Vikash Sharma

IPC: H04L29/06 ,  H04N5/232

Abstract: Aspects of the subject disclosure may include, for example, obtaining data indicative, for a frame of a video, of a field of view of a user; determining from a set of homogeneous tiles of the frame a subset of the homogeneous tiles that covers the field of view, wherein the set of homogeneous tiles has been constructed prior to the obtaining of the data; and merging at least a first tile of the set of homogeneous tiles and a second tile of the set of homogenous tiles into a larger tile, wherein the merging is based upon at least one parameter. Other embodiments are disclosed.

公开(公告)号：US11146506B2

公开(公告)日：2021-10-12

申请号：US16220683

申请日：2018-12-14

Applicant: AT&T Intellectual Property I, L.P. ,  Regents of the University of Minnesota

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Muhammad Bilal Anwer ,  Zhi-Li Zhang ,  Yang Zhang

IPC: G06F13/00 ,  H04L12/931 ,  H04L12/24 ,  H04L12/715 ,  G06F9/455

Abstract: Systems, computer-readable media, and methods are disclosed for parallel data processing for service function chains with network functions spanning multiple servers. An example system includes a first server hosting a first network function of a service function chain, a second server hosting a second network function of the service function chain, a mirror function deployed in a first switch to replicate a plurality of packets received by the system and to send respective copies of the plurality of packets to the first network function and to at least one of the second network function and a third network function of the service function chain, and a merge function deployed in a second switch to merge respective outputs of the first network function and the at least one of the second network function and the third network function.

公开(公告)号：US20210250638A1

公开(公告)日：2021-08-12

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 ,  H04N21/44 ,  H04N21/458 ,  H04N21/81 ,  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：US20210235140A1

公开(公告)日：2021-07-29

申请号：US16875548

申请日：2020-05-15

Applicant: AT&T Intellectual Property I, L.P. ,  Regents of the University of Minnesota

Inventor： Bo Han ,  Cheuk Yiu Ip ,  Jackson Jarrell Pair ,  Feng Qian

IPC: H04N21/24 ,  H04N21/2343 ,  H04N21/239 ,  H04N21/472 ,  H04N21/2187 ,  H04N21/81 ,  H04N21/2385 ,  H04N21/478

Abstract: Aspects of the subject disclosure may include, for example, embodiments for obtaining video content from a video content server, determining a quality parameter for each of the plurality of adjusted video content, and adjusting the video content to generate the plurality of adjusted video content. Each of the plurality of adjusted video content comprises a different point cloud density according to the quality parameter. Further embodiments can include receiving a request for the video content from a video content application on a communication device, and determining a distance from a viewpoint to a point-cloud object on the video content application of the communication device. Additional embodiments can include selecting an adjusted video content based on the distance from the viewpoint to the point-cloud object and the quality parameter of the adjusted video content, and providing the adjusted video content to the communication device for presentation. Other embodiments are disclosed.

公开(公告)号：US20210235134A1

公开(公告)日：2021-07-29

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 ,  G06F3/0481 ,  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.

公开(公告)号：US20210235118A1

公开(公告)日：2021-07-29

申请号：US17231434

申请日：2021-04-15

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.

公开(公告)号：US11026144B2

公开(公告)日：2021-06-01

申请号：US16431726

申请日：2019-06-04

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

Inventor： Lusheng Ji ,  Robert Raymond Miller, II ,  Bo Han

IPC: H04W76/00 ,  H04W36/14 ,  H04W76/16 ,  H04W76/12 ,  H04W28/08 ,  H04J11/00 ,  H04W48/18 ,  H04W72/04 ,  H04W84/12 ,  H04W88/06

Abstract: Improved non-cellular (e.g., Wi-Fi) link integration with a cellular (e.g., LTE) network is described. The improved link integration can relate to utilizing an eNodeB device (e.g., residing in a radio access network portion of a cellular network) as an anchor point rather than a packet data network gateway device (e.g., residing in a core network portion of the cellular network) utilized by other approaches. The improved link integration can maintain full compliance with or support for other approaches, and can reduce signaling overhead, simplify quality-of-service management, and/or provide a more rapid reaction to changes of access, particularly in cases where the eNodeB device and a non-cellular access point device are co-located.

公开(公告)号：US10979740B2

公开(公告)日：2021-04-13

申请号：US16859937

申请日：2020-04-27

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

Inventor： Bo Han ,  Vijay Gopalakrishnan ,  Tan Xu

IPC: H04N21/218 ,  G06F3/01 ,  G06F3/0481 ,  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.