Feature information (715, 755) is received from a client device (110, 220) and describes extended reality scene(s) in an extended reality (XR) environment at the client device. An XR description (420-1, 725) is formed in an XR description format corresponding to the feature information and is stored. Some of the stored XR description format is provided in a representational format (gITF) upon request of the client device or other client devices viewing the one or more XR scenes and assisting the positioning of corresponding client devices in the XR environment. A client device (110, 220) captures environmental visual data and generates feature information, describing XR scene(s) in an extended reality environment at the client device, from the environmental visual data, and sends the generated feature information toward a server (SCS, 190). A client device (110, 220) can localize itself in a 3D environment of an XR description, and generate XR anchors and objects, link them, and send them to a server (SCS, 190).
NETWORK-BASED SPATIAL COMPUTING FOR EXTENDED REALITY (XR) APPLICATIONS