Abstract: This application provides methods and communication apparatus for transmitting a data packet of a media stream. The method can include an access network element receiving M data packets of a media stream from a user plane network element. When a network resource of the access network element cannot satisfy a transmission requirement of a terminal device, the access network element drops N data packets with lower priorities in the M data packets, where N?M. The access network element sends, to the terminal device, a data packet that is not dropped and sequence numbers that represent sending sequences of the data packets and that are carried in the N data packets, and receives, from the terminal device, an ACK feedback for the sequence numbers carried in the N data packets. In the solutions discussed herein, video playback experience on a user side can be substantially ensured.

Abstract: Method for creating marker-based shared augmented reality (AR) session starts with initializing a shared AR session by a first device and by a second device. The first device displays on a display a marker. The second device detects the marker using a camera included in the second device and captures an image of the marker using the camera. The second device determines a transformation between the first device and the second device using the image of the marker. A common coordinate frame is then determined using the transformation, the shared AR session is generated using the common coordinate frame, and the shared AR session is caused to be displayed by the first device and by the second device. Other embodiments are described herein.

Abstract: An augmented reality system to generate and cause display of a presentation of a space at a first client device, receive one or more selections of points within the presentation of the space at the first client device, and render graphical elements at the one or more points within the presentation of the space at the first client device. The augmented reality system is further configured to receive a display request to display the space at a second client device, and in response, may render a second presentation of the space at the second client device, wherein the second presentation of the space includes the graphical elements at the one or more points.

Abstract: Example embodiments described herein relate to an augmented-reality system to generate and cause display of interactive augmented reality content at a client device.

Abstract: Methods, systems, and devices for generating a persistent world-space ground (or floor) segmentation map (or “texture”) for use in augmented or virtual reality 3D experiences.

Abstract: An augmented reality system to generate and cause display of a presentation of a space at a first client device, receive one or more selections of points within the presentation of the space at the first client device, and render graphical elements at the one or more points within the presentation of the space at the first client device. The augmented reality system is further configured to receive a display request to display the space at a second client device, and in response, may render a second presentation of the space at the second client device, wherein the second presentation of the space includes the graphical elements at the one or more points.

Abstract: Example embodiments described herein relate to an augmented-reality system to generate and cause display of interactive augmented reality content at a client device.

Abstract: An occlusion detection system to perform operations that include: capturing image data that depicts an environment at a client device, the environment including a target object at a position within the environment; causing display of a presentation of the environment at the client device, the presentation of the environment including a display of the target object at the position within the environment; detecting a first attribute of the display of the target object at the client device; performing a comparison of the first attribute of the display of the target object and a second attribute associated with the target object; and detecting an occlusion based on the comparison.

Abstract: A cell selection method includes obtaining measurement results of N cells. The cell selection method also includes obtaining cell selection assistance information. The cell selection assistance information includes identifiers of L slices corresponding to M sessions of a terminal device and slice capability information of the N cells, the slice capability information of the N cells includes identifiers of slices supported by the N cells, and M, L, and N are positive integers. The cell selection method further includes performing cell selection or cell reselection based on the measurement results of the N cells and the cell selection assistance information.

Abstract: This application provides a method and an apparatus for determining an air interface latency and relates to the field of communications technologies. In the method, an access network device obtains an air interface latency of a downlink data packet and schedules the downlink data packet based on the air interface latency of the downlink data packet. The air interface latency of the downlink data packet is calculated based on a round-trip latency, and the round-trip latency is a latency from when a terminal sends an uplink data packet to when the terminal receives the downlink data packet corresponding to the uplink data packet. In the method, the access network device may schedule the downlink data packet based on the air interface latency of the downlink data packet, so as to precisely control a latency in uplink and downlink data transmission.

Abstract: Systems, methods, devices, and media for anamorphosis systems to generate and cause display of anamorphic media are disclosed. In one embodiment, an anamorphosis system is configured to identify a set of features of a space, determine relative positions of the set of features, determine a perspective of the mobile device within the space based on the relative positions of the set of features, retrieve anamorphic media based on the location of the mobile device, and apply the anamorphic media to a presentation of the space at the mobile device. The anamorphic media may include media items such as images and videos, configured such that the media items are only visible from one or more specified perspectives. The anamorphic media may include a stylized text string projected onto surfaces of a space such that the stylized text string is correctly displayed when viewed through a user device from a specified perspective.

Abstract: Embodiments of this disclosure provide a communication method and apparatus, to reduce a waiting delay during transmission of retransmitted data and out-of-order data. In this method, a user plane function network element may receive first data and second data, determines, based on first information, that the second data is retransmitted data of the first data, and sends indication information to an access network network element. The indication information herein may indicate that the second data is the retransmitted data, or indicate a sending priority of the second data. Based on this solution, the access network network element may send the first data and the second data based on the indication information, and may preferentially send the retransmitted data to reduce the waiting delay during data transmission.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and a method for performing operations comprising: receiving a request from a client device of a first user to engage in a shared augmented reality (AR) shopping experience with a second user; generating, for display on respective client devices of the first and second users, the shared AR shopping experience comprising a plurality of AR items that represent real-world products overlaid on a shared real-world environment of the first and second users; determining that the second user is interacting with a first AR item of the plurality of AR items; and in response to detecting that the second user is depicted in an image captured by the client device of the first user, overlaying the first AR item on the second user in the image.

Abstract: An occlusion detection system to perform operations that include: capturing image data that depicts an environment at a client device, the environment including a target object at a position within the environment; causing display of a presentation of the environment at the client device, the presentation of the environment including a display of the target object at the position within the environment; detecting a first attribute of the display of the target object at the client device; performing a comparison of the first attribute of the display of the target object and a second attribute associated with the target object; and detecting an occlusion based on the comparison.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and a method for performing operations comprising: receiving, from a client device of a first user, a request from the first user to engage in an AR shopping experience curated by a store; identifying a first real-world product available for purchase from the store; receiving an image of a real-world environment of the first user; generating a first AR item that represents the first real-world product; comparing visual attributes of the first AR item to physical layouts of a plurality of real-world objects depicted in the image of the real-world environment; and overlaying the first AR item on a first real-world object of the plurality of real-world objects in the image responsive to comparing the visual attributes of the first AR item to the physical layouts of the plurality of real-world objects.

Abstract: Method of generating depth estimate based on biometric data starts with server receiving positioning data from first device associated with first user. First device generates positioning data based on analysis of a data stream comprising images of second user that is associated with second device. Server then receives a biometric data of second user from second device. Biometric data is based on output from a sensor or a camera included in second device. Server then determines a distance of second user from first device using positioning data and biometric data of the second user. Other embodiments are described herein.

Abstract: A depth estimation system to perform operations that include: receiving image data generated by a client device, the image data comprising a depiction of an environment; identifying a set of image features based on the image data; determining a pose of the client device based on the set of features; generating a depth estimation based on the image data and the pose of the client device; and generating a mesh model of the environment based on the depth estimation.

Abstract: Method for creating marker-based shared augmented reality (AR) session starts with initializing a shared AR session by a first device and by a second device. The first device displays on a display a marker. The second device detects the marker using a camera included in the second device and captures an image of the marker using the camera. The second device determines a transformation between the first device and the second device using the image of the marker. A common coordinate frame is then determined using the transformation, the shared AR session is generated using the common coordinate frame, and the shared AR session is caused to be displayed by the first device and by the second device. Other embodiments are described herein.

Abstract: Methods, computer program products, and systems are presented. The methods include, for instance: collecting real time system statistics on a system environment in a remote platform running a remote data source amongst a plurality of remote data sources of a virtual database. Real time data source statistics on one or more data source objects from the remote data source of the virtual database is also gathered. A global catalog of the virtual database is updated with the real time system statistics and the real time data source statistics. An access plan to process a query to the virtual database is optimized based on the real time system statistics and the real time data source statistics and a response is produced based on the access plan, with improved performance and reduced cost.

Abstract: An access network device receives characteristic information of a first live media stream included in a switching request from a terminal device. The access network device or a user plane network element determines, based on the characteristic information, the first live media stream corresponding to the characteristic information of the first live media stream. Therefore, the access network device or the user plane network element switches a media stream sent to the terminal device, to be specific, switches the live media stream sent to the terminal device from a second live media stream to the first live media. Both the second live media stream and the first live media stream correspond to the access network device or the user plane network element. According to the method, media stream switching can be completed on the access network device side or the user plane network element side.