Qualcomm Incorporated

Vinay Melkote Krishnaprasad

Ajit Venkat Rao

Sandeep Kanakapura Lakshmikantha

Pawan Kumar Baheti

Sudipto Banerjee

Prashanth Haridas Hande

Peerapol Tinnakornsrisuphap

Thomas Stockhammer

Ravi Agarwal

Bojan Vrcelj

Isaac Garcia Munoz

Nils Gunther Peters

Andre Schevciw

Arjun Sitaram

Sagar Ravindra Kalbande

Sriram Ajaykumar

Ajit Deepak Gupte

Qi Xue

Pushkar Gorur Sheshagiri

Abhishek Ranka

Shraman Biswas

Yuchul Kim

Hemanth Sampath

Bibhu P Mohanty

Chih-Ping Li

Carlos Marcelo Dias Pazos

Naveen Srinivasamurthy

Dieter Schmalstieg

Vikram Singh

Mickael Mondet

Hyun Yong Lee

Mina Ayman Saleh Yanni Makar

Chiranjib Choudhuri

Shankar Ganesh Lakshmanaswamy

Sanjeev Mittal

Deepak Khandelwal

Marcelo Schiocchet

Soumyajit Bijankumar Deb

Chayan Sharma

Anand Prabhakar Satpute

Arpit Bhatnagar

Karthik M V

Mohammed Mohsin Hussain

Sabares Moola Sreedaranath

Aarrushi Shandilya

Srinath Nagaraj

Methods, systems, and devices for wireless communications are described. A network entity may account for jitter in communications with a user equipment (UE) by adjusting connected mode discontinuous reception (CDRX) configuration parameters for the UE based on estimated downlink traffic arrival times. For a downlink traffic burst, the network entity may estimate a traffic arrival offset based on determining a traffic periodicity, an estimated arrival time associated with one or more packets of a traffic burst, and at least one jitter parameter. The jitter parameter may represent an uncertainty in the arrival time of the traffic burst. The network entity may select a CDRX offset value based on the estimated traffic arrival offset. The network entity may transmit (e.g., to a UE, such as an extended reality (XR) device) a message indicating the CDRX offset value, for example, as part of a CDRX configuration.

Connected mode discontinuous reception settings for periodic traffic with jitter

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a server device may receive, during a first time window, information indicating a plurality of client round-trip times (CRTTs) associated with a client device. The server device may compute a plurality of network round-trip times (NRTTs) based at least in part on the plurality of CRTTs, each NRTT in the plurality of NRTTs corresponding to a respective CRTT in the plurality of CRTTs. The server device may compute one or more NRTT metrics for the first time window using the plurality of NRTTs. The server device may selectively adjust a bitrate used for a transmission to the client device based at least in part on a determination of whether the one or more NRTT metrics satisfy one or more NRTT metric thresholds. Numerous other aspects are described.

Rate control based on round-trip time

The present disclosure relates to methods and apparatus for graphics processing. Aspects of the present disclosure can render at least one frame including display content at a server. Aspects of the present disclosure can also downscale the at least one frame including the display content, where a downscaling rate of one or more portions of the at least one frame is based on a location of each of the one or more portions. Moreover, aspects of the present disclosure can communicate the downscaled at least one frame including the display content to a client device. Aspects of the present disclosure can also encode the downscaled at least one frame including the display content. Further, aspects of the present disclosure can decode the encoded at least one frame including the display content. Aspects of the present disclosure can also upscale the at least one frame including the display content.

Methods and apparatus for foveated compression

Certain aspects of the present disclosure provide techniques for communicating time synchronized data between a client and a server. An example method generally includes synchronizing, by a client, a clock of the client with a clock source. The method also includes transmitting, from the client to a server, at an application level, information indicating the clock source, a cell identifier of a serving cell of the client, and accuracy of the clock source as a time value. The method further includes transmitting, from the client to the server, a message including data and a timestamp correlated to an event associated with the data based on the clock. The method also includes in response to the message, receiving, by the client from the server, generated data.

End-to-end time synchronization for cloud-based services

Embodiments include methods performed by a processor of a receiving wireless device for rendering augmented reality content. The methods may include receiving real image data from a transmitting wireless device via a first data stream, and receiving augmented reality (AR) content from the transmitting wireless device via a second data stream that is an alt video stream, in which the AR content is for display with the real image data. Methods may further include displaying the AR content in conjunction with the real image data. In some embodiments, the first data stream and the second data stream are Real-time Transport Protocol (RTP) streams.

Enhanced dual video call with augmented reality stream

Systems and techniques are described herein for generating and/or processing virtual content in a distributed system (e.g., a distributed extended reality system). For example, a first device (e.g., a client device) of a distributed extended reality system may transmit one or more sets of pose prediction parameters (e.g., prediction coefficients, prediction time associated with raw pose data, and/or the raw pose data) to a second device (e.g., a server device) of the distributed extended reality system. The second device may predict one or more poses of the second device based on the set(s) of pose prediction parameters, and may generate virtual content based on a pose of the predicted pose(s) of the first device. The second may transmit and the first device may receive the virtual content. The first device may then display one or more virtual objects based at least in part on the received virtual content.

Distributed pose prediction

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for multi-layer reprojection techniques for augmented reality. A display processor may obtain a layer of graphics data including a plurality of virtual objects. Each the plurality of virtual objects may be associated with at least one bounding box of a plurality of bounding boxes. The display processor may further obtain metadata indicative of at least one edge of the at least one bounding box of the plurality of bounding boxes, and metadata corresponding to reprojection instructions associated with each of the plurality of bounding boxes. The display processor may reproject the plurality of virtual objects based on the metadata indicative of the at least one edge of the at least one bounding box and the metadata corresponding to the reprojection instructions.

Multi-layer reprojection techniques for augmented reality

Certain aspects of the present disclosure present a method of graphics processing at a wearable display device. The method generally includes rendering a first image based on a position of the wearable display device and contours and depth information for one or more real-world objects associated with the position, the rendered first image comprising, at least, one or more virtual objects, re-projecting the first image based on an updated position of the wearable display device that is different than the position, rendering a second image using re-projected contours of the one or more real-world objects in the first image, updated depth information for the one or more real-world objects in the first image, updated depth information for the one or more virtual objects in the first image, and warped one or more virtual objects, and displaying the second image on a display of the wearable display device.

Late stage occlusion based rendering for extended reality (XR)

A device includes one or more processors configured to obtain sound information from an audio source. The one or more processors are further configured to select, based on a latency criterion associated with a playback device, a compression mode in which a representation of the sound information is compressed prior to transmission to the playback device or a bypass mode in which the representation of the sound information is not compressed prior to transmission to the playback device. The one or more processors are further configured to generate audio data that includes, based on the selected one of the compression mode or the bypass mode, a compressed representation of the sound information or an uncompressed representation of the sound information. The one or more processors are also configured to send the audio data as streaming data, via wireless transmission, to the playback device.

Sound field adjustment

A device includes one or more processors configured to receive, via wireless transmission from a playback device, data associated with a pose of the playback device. The one or more processors are also configured to select, based on the data, a particular representation of a sound field from a plurality of representations of the sound field. Each respective representation of the sound field corresponds to a different sector of a set of sectors. A sector represents a range of values associated with movement of the playback device. The one or more processors are further configured to generate audio data corresponding to the selected representation of the sound field. one or more processors are also configured to send, via wireless transmission, the audio data as streaming data to the playback device.

The present disclosure relates to methods and apparatus for computer processing. Aspects of the present disclosure can determine at least one of a quality, latency, or capacity of a communication link for communication between a client device and a server. Aspects of the present disclosure can also determine a computational load for an application computation between the client device and the server. Moreover, aspects of the present disclosure can adjust a computational distribution for the application computation between the client device and the server based on at least one of the computational load for the application computation or the at least one of the quality, latency, or capacity of the communication link. Aspects of the present disclosure can also determine a computational capacity of at least one of the client device or the server.

Distribution of application computations

The present disclosure relates to methods and apparatus for video processing. In one aspect, the apparatus may configure at least one frame of plurality of frames in a video stream. The apparatus may also divide the at least one frame into one or more slices, each of the one or more slices including one or more data packets. The apparatus may also map each of the one or more slices to one of one or more communication channels. The apparatus may also transmit each of the one or more slices including the one or more data packets via the one of the one or more communication channels. In another aspect, the apparatus may receive each of one or more slices via one of one or more communication channels. The apparatus may also decode each of the one or more slices including one or more data packets.

Reliable transmissions in VR and AR systems

Aspects presented herein relate to methods and devices for graphics processing including an apparatus, e.g., client device or a server. The apparatus may transmit, to a server at a beginning of a first time period, at least one first head pose associated with a position of the client device, the first time period being synchronized with the server. The apparatus may also receive, from the server during a second time period, at least one first frame including first content based on the at least one first head pose, the second time period being synchronized with the server. Further, the apparatus may display, upon receiving the at least one frame during the second time period, the at least one first frame including the first content.

Synchronization techniques in split rendering

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Bengaluru, India

Vinay Melkote Krishnaprasad