公开(公告)号：US11979290B2

公开(公告)日：2024-05-07

申请号：US18055233

申请日：2022-11-14

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: H04L41/0893 ,  G06F9/455 ,  G06F9/50 ,  H04L12/24 ,  H04L12/715 ,  H04L15/16 ,  H04L45/64 ,  H04L61/256

CPC classification number: H04L41/0893 ,  G06F9/45558 ,  G06F9/5077 ,  H04L45/64 ,  H04L61/256 ,  G06F2009/45595

Abstract: Systems and methods are disclosed for parallelizing service function chains. A method comprises receiving a sequential service function chain comprising a plurality of network functions, receiving a plurality of operations, determining at least two network functions are capable of being parallelized, aggregating operations of the plurality of operations associated with the at least two network functions into a network function segment, determining whether another network function is capable of being parallelized with the network function segment, based on the determining: aggregating an operation associated with the another network function into the network function segment when the another network function is capable of being parallelized with the network function segment, or pushing the network function segment as a completed segment of a hybrid service function chain when the another network function is not capable of being parallelized with the network function segment, and implementing the hybrid service function chain.

公开(公告)号：US11695914B2

公开(公告)日：2023-07-04

申请号：US17718370

申请日：2022-04-12

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

Inventor： Tan Xu ,  Bo Han ,  Eric Zavesky

IPC: H04N13/395 ,  H04N13/117 ,  G06F3/04815 ,  H04N21/6587 ,  H04N21/81

CPC classification number: H04N13/395 ,  G06F3/04815 ,  H04N13/117 ,  H04N21/6587 ,  H04N21/816

Abstract: Aspects of the subject disclosure may include, for example, transmitting viewpoint information associated with a first portion of a three-dimensional (3D)/volumetric video to a device, wherein the viewpoint information comprises a first coordinate in 3D space associated with a first viewing direction in a playback of the first portion and a first timestamp associated with the first portion, receiving, from the device, a multiplane image (MPI) representation of a second portion of the 3D video responsive to the transmitting of the viewpoint information, and providing an image of the MPI representation to a display device. Other embodiments are disclosed.

公开(公告)号：US20230198917A1

公开(公告)日：2023-06-22

申请号：US18168553

申请日：2023-02-13

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: H04L49/20 ,  H04L49/00 ,  H04L41/0806 ,  H04L45/64 ,  G06F9/455 ,  H04L41/12

CPC classification number: H04L49/208 ,  H04L49/70 ,  H04L41/0806 ,  H04L45/64 ,  G06F9/45558 ,  H04L41/12 ,  G06F2009/45595

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：US11671623B2

公开(公告)日：2023-06-06

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 ,  H04N19/164 ,  H04N23/698

CPC classification number: H04N19/597 ,  H04N19/164 ,  H04N23/698

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：US20220408211A1

公开(公告)日：2022-12-22

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: H04S7/00 ,  H04N21/233 ,  H04N21/218

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.

公开(公告)号：US20220321976A1

公开(公告)日：2022-10-06

申请号：US17846064

申请日：2022-06-22

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

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

IPC: H04N21/81 ,  H04N21/472 ,  H04N21/234 ,  H04N21/4728

Abstract: Aspects of the subject disclosure may include, for example, a method comprising: obtaining media content, such as video; receiving a request from a user and/or user equipment (UE) to view the media content; identifying a predicted field of view of the user; sending the predicted field of view to the equipment of the user at a normal priority; monitoring a line of sight (or actual field of view) of the user; determining a field of view error as a difference between the line of sight and the predicted field of view; and sending the field of view error to the equipment of the user at a higher priority. Other embodiments are disclosed.

公开(公告)号：US11457200B2

公开(公告)日：2022-09-27

申请号：US16825645

申请日：2020-03-20

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

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

IPC: H04N13/194 ,  H04N13/111 ,  H04N13/178 ,  G06T7/33 ,  G06V10/40

Abstract: Aspects of the subject disclosure may include, for example, a device, that includes a processing system including a processor and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations including receiving a manifest for a point cloud, wherein the point cloud is partitioned into a plurality of cells; determining an occlusion level for a cell of the plurality of cells with respect to a predicted viewport; reducing a point density for the cell provided in the manifest based on the occlusion level, thereby determining a reduced point density; and requesting delivery of points in the cell, based on the reduced point density. Other embodiments are disclosed.

公开(公告)号：US11445161B2

公开(公告)日：2022-09-13

申请号：US17197276

申请日：2021-03-10

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

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

IPC: H04N13/117 ,  H04N13/194 ,  G06N20/00 ,  G06N3/08 ,  G06T7/174

Abstract: Aspects of the subject disclosure may include, for example, a device having a processing system including a processor; and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising predicting a viewpoint within a volumetric video based on a movement input provided by a viewer, resulting in a predicted viewpoint at a future time, retrieving a cell occupancy bitmap for a point cloud of the volumetric video for the future time, determining visible cells based on the cell occupancy bitmap and the predicted viewpoint, where the visible cells are not obscured by points in other cells, and retrieving points of the point cloud that are within the visible cells prior to the future time.

公开(公告)号：US11419054B2

公开(公告)日：2022-08-16

申请号：US14802508

申请日：2015-07-17

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

Inventor： Bo Han ,  Shuai Hao ,  Lusheng Ji ,  Feng Qian

IPC: H04W52/02 ,  H04W88/06

Abstract: Energy consumption of cellular interfaces on multihomed mobile devices, such as smartphones, tablets and laptops can be improved by adjusting the inactivity timer of the cellular interface of the mobile devices based on the on/off status of non-cellular interface(s) on the mobile devices. Possible near-future data packets can be transmitted or received on the non-cellular interfaces that co-exist on the mobile devices and thus the inactivity timer of the cellular interface may be dynamically and more efficiently adjusted, based on the on/off status of non-cellular interface(s). If the non-cellular interface is available on the mobile device, then the inactivity timer can be set to be shorter than if only the cellular interface is available.

公开(公告)号：US20220132363A1

公开(公告)日：2022-04-28

申请号：US17647399

申请日：2022-01-07

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

Inventor： Shu Shi ,  Rittwik Jana ,  Bo Han ,  Bo Chen

IPC: H04W28/02 ,  H04L47/193 ,  H04L47/2475 ,  H04L43/087 ,  H04L43/10 ,  A63F13/355 ,  H04L47/283

Abstract: The described technology is generally directed towards a transport protocol for latency sensitive applications. The disclosed transport protocol is “semi-reliable” in that it allows for specification of an importance of data being transmitted, thereby allowing important data to be sent reliably, while other data can be dropped if necessary, e.g., under bad network conditions. A deadline can be specified for such other data, and if the other data cannot be sent prior to the deadline, it can be dropped. Furthermore, the disclosed transport protocol can allow for early discovery of network jitter. A client device can send regular acknowledgments which identify most recently received data packets as well as a number of “heartbeat transmissions” received at the client device. A server device can use the acknowledgments to discover and respond to jitter.