公开(公告)号：US20220337831A1

公开(公告)日：2022-10-20

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: H04N19/119 ,  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：US11451485B2

公开(公告)日：2022-09-20

申请号：US16832787

申请日：2020-03-27

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

Inventor： Rajarajan Sivaraj ,  Subhabrata Sen ,  Zhengye Liu ,  Jin Wang

IPC: H04L47/36 ,  H04L47/283 ,  H04L47/193 ,  H04L69/16 ,  H04L43/0817 ,  H04L43/0864 ,  H04L1/00 ,  H04W28/06 ,  H04L47/27

Abstract: Various embodiments disclosed herein provide for identifying optimal data packet size to achieve a higher throughput a wireless communication network. According to some embodiments, a system can comprise monitoring a transmit control protocol performance associated with a first transmission of data packets over a first duration of time, wherein a packet size of the data packets is a first data packet size, detecting that the transmit control protocol performance satisfies a function with respect to a threshold and in response to the detecting that transmit control protocol performance satisfies the function with respect to the first threshold, determining a second data packet size to use for a second transmission of the data packets over a second duration of time, transmitting a request to change the packet size of the data packets to the second data packet.

公开(公告)号：US11381817B2

公开(公告)日：2022-07-05

申请号：US16580903

申请日：2019-09-24

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：US20220007204A1

公开(公告)日：2022-01-06

申请号：US17480736

申请日：2021-09-21

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

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

IPC: H04W16/22 ,  H04W28/02 ,  H04W36/00 ,  H04W24/02 ,  H04B17/391 ,  H04L12/801 ,  H04L12/24 ,  H04B17/382

Abstract: Aspects of the subject disclosure may include, for example, receiving a first plurality of operating parameters associated with a first plurality of communication devices, obtaining a first prediction of a performance of a first communication device included in the first plurality of communication devices that is based on an application of the first plurality of operating parameters to a model, and responsive to a determination that the first prediction of the performance is inadequate in accordance with a first threshold, transmitting a first command to at least one communication device included in the first plurality of communication devices to modify at least one operating parameter of the at least one communication device. Other embodiments are disclosed.

公开(公告)号：US20210368216A1

公开(公告)日：2021-11-25

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 ,  H04L12/801

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：US11122311B2

公开(公告)日：2021-09-14

申请号：US16535949

申请日：2019-08-08

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：US20210250664A1

公开(公告)日：2021-08-12

申请号：US17243628

申请日：2021-04-29

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

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

IPC: H04N21/81 ,  H04N21/234 ,  H04N21/472 ,  H04N21/4728 ,  H04N21/218

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：US11044185B2

公开(公告)日：2021-06-22

申请号：US16220664

申请日：2018-12-14

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.

公开(公告)号：US10972526B2

公开(公告)日：2021-04-06

申请号：US16538708

申请日：2019-08-12

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

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

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04N21/2343 ,  H04N21/238 ,  H04N21/845

Abstract: In one example, the encoding rate at which data is delivered over a network is estimated by intercepting a data packet from a data streaming session, wherein the data packet contains at least a portion of one of a plurality of file segments containing portions of a file, and wherein a number of the plurality of file segments that is delivered via the data streaming session is limited to a maximum number. The mean size of the plurality of file segments is estimated from data contained in the data packet. A plurality of potential sizes of the plurality of file segments is calculated, wherein each potential size corresponds to one number between one and the maximum number. An encoding rate of the data streaming session is calculated, based at least in part on which potential size of the plurality of potential sizes is closest to the mean size.

公开(公告)号：US20210092371A1

公开(公告)日：2021-03-25

申请号：US16580903

申请日：2019-09-24

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

Inventor： Bo Han ,  Tan Xu ,  Zhengye Liu

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

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.