公开(公告)号：US11338199B2

公开(公告)日：2022-05-24

申请号：US16793282

申请日：2020-02-18

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

Inventor： Michael Hwang ,  Sannan Tariq ,  Christopher Rath ,  Rittwik Jana ,  Shu Shi

IPC: A63F13/335 ,  A63F13/355

Abstract: The described technology is generally directed towards techniques to measure interaction latency. Interaction latency can be measured at a client device by measuring time intervals between user inputs and corresponding feedback, such as video frames responsive to the user inputs. Feedback can comprise communication bursts received at the client device. The communication bursts can be detected and correlated with user inputs in order to measure interaction latency. Feedback can also comprise video response features which are responsive to the user inputs. Received video frames can be analyzed to discover response features, and video frames including the response features can be correlated with user inputs in order to measure interaction latency.

公开(公告)号：US20220092606A1

公开(公告)日：2022-03-24

申请号：US17541834

申请日：2021-12-03

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

Inventor： Rittwik Jana ,  Thomas Kirk ,  Syed Anwar Aftab ,  John F. Murray ,  Mazin E. Gilbert ,  Shu Shi ,  Serban Jora ,  Avi Zahavi

IPC: G06Q30/00 ,  G06N20/00 ,  G06F9/50 ,  G06Q10/10 ,  G06F3/0481 ,  G06F3/0484

Abstract: A cloud services composition system allows customers to interactively create service constructs from network function virtualization resources. The network function virtualization primitives are modeled using a standard modeling language. An expert system suggests network function virtualization resources for use in the service construct, based on an expert system learning algorithm. The customer uses a graphical user interface to interconnect the resources and create the service construct. The process may involve collaboration with the network provider. The resulting construct is validated for use in a communications network.

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：US11159779B2

公开(公告)日：2021-10-26

申请号：US16581097

申请日：2019-09-24

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

Inventor： Bo Han ,  Shu Shi ,  Rittwik Jana

IPC: H04N13/282 ,  H04N13/122 ,  H04N13/194 ,  H04N21/63 ,  H04N21/258 ,  H04N21/442 ,  H04N21/262 ,  H04N21/24 ,  H04N21/81 ,  H04N21/218

Abstract: In one example, a processing system including at least one processor may obtain predicted viewports of a plurality of mobile computing devices for an immersive visual stream, determine at least a first tile of the immersive visual stream that is within the predicted viewports of at least two mobile computing devices of the plurality of mobile computing devices, select a first mobile computing device of the at least two mobile computing devices to transmit the first tile, and transmit to the first mobile computing device, the first tile and at least one identification of at least one other mobile computing device of the at least two mobile computing devices to which the first mobile computing device is to forward the first tile.

公开(公告)号：US20210243483A1

公开(公告)日：2021-08-05

申请号：US17239840

申请日：2021-04-26

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

Inventor： Shu Shi ,  John F. Murray ,  Michael Hwang ,  Rittwik Jana ,  Varun Gupta

IPC: H04N21/238 ,  H04N21/414 ,  H04N21/218 ,  H04N21/222 ,  H04N21/24

Abstract: Aspects of the subject disclosure may include, for example, embodiments for determining a first motion-to-update latency of a mobile device in relation to receiving a video content update provided by a video content server. Further embodiments include, responsive to determining that the first motion-to-update latency exceeds a threshold: determining a motion-to-update latency of the mobile device in relation to receiving video content updates from a plurality of edge servers resulting in a plurality of motion-to-update latencies, identifying a second motion-to-update latency from the plurality of motion-to-update latencies that is below the threshold, identifying an edge server associated with the second motion-to-update latency, and transmitting video content to the edge server to mitigate the first motion-to-update latency. The edge server provides a portion of the video content at different time intervals to the mobile device and the video content comprises panoramic video content. Other embodiments are disclosed.

公开(公告)号：US10972789B2

公开(公告)日：2021-04-06

申请号：US16429958

申请日：2019-06-03

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

Inventor： Zhehui Zhang ,  Shu Shi ,  Rittwik Jana ,  Varun Gupta

IPC: H04N7/16 ,  H04N21/4402 ,  H04N21/434 ,  H04N21/45 ,  H04N21/414

Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.

公开(公告)号：US10812771B1

公开(公告)日：2020-10-20

申请号：US16438697

申请日：2019-06-12

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

Inventor： Shu Shi ,  Varun Gupta ,  Rittwik Jana

IPC: H04N7/18 ,  H04N13/117 ,  H04N13/366 ,  G06T3/40 ,  G06T5/00 ,  H04N13/194

Abstract: Aspects of the subject disclosure may include, for example, obtaining image content over a communication network, determining a predicted viewpoint of a user associated with the image content, and adjusting the image content to equirectangular image content according to the predicted viewpoint. Further aspects can include downscaling the equirectangular image content according to a display capability of a mobile device resulting in a downscaled equirectangular image content, cropping the downscaled equirectangular image content resulting in a cropped equirectangular image content, and providing, over the communication network, the cropped equirectangular image content to the mobile device. Other embodiments are disclosed.

公开(公告)号：US10264035B2

公开(公告)日：2019-04-16

申请号：US15050513

申请日：2016-02-23

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

Inventor： Rittwik Jana ,  John F. Murray ,  Vijay Gopalakrishnan ,  Shu Shi ,  Bo Han ,  Bo Yan ,  Lusheng Ji

IPC: H04L29/06 ,  H04L12/18 ,  H04L12/725

Abstract: A multimedia conferencing service uses accessible-forwarding-plane network elements such as OpenFlow® controllers and OpenFlow®-enabled switches. A conferencing server receives a conference subscription request including a network address of a L2/L3 signaling server, and connects to an accessible-forwarding-plane controller to control an accessible-forwarding-plane switch. Flow tables and group tables are managed to classify traffic with minimum table usage and update frequency. Media channels are established between clients through the OpenFlow®-enabled switches, relieving bottlenecks at the conferencing server.

公开(公告)号：US11659434B2

公开(公告)日：2023-05-23

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 ,  H04L67/01

CPC classification number: H04W28/0273 ,  A63F13/355 ,  H04L43/087 ,  H04L43/10 ,  H04L47/193 ,  H04L47/2475 ,  H04L47/283 ,  H04L67/01

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.

公开(公告)号：US11490158B2

公开(公告)日：2022-11-01

申请号：US17491724

申请日：2021-10-01

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

Inventor： Zhehui Zhang ,  Shu Shi ,  Rittwik Jana ,  Varun Gupta

IPC: H04N21/4402 ,  H04N21/434 ,  H04N21/45 ,  H04N21/414

Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.