Methods for measurement of xr interactivity quality of experience

An apparatus comprising:

• a processor;
• and
• a non-transitory computer-readable medium storing instructions operative, when executed by the processor, to cause the apparatus to:
• communicate, by a client device, with a server to configure a metadata structure to manage processing of received interactions with respect to a mixed-reality (MR) scene, the metadata structure comprising a series of time information determinations to be made at the client device and the server in processing the received interactions;
• receive a user action with respect to the MR scene and initiating processing of an interaction request based on the user action in accordance with interaction information corresponding to the user action and with the metadata structure;
• determine a first time information at a first stage of the processing of the interaction request at the client device;
• update the interaction information with the first time information at the first stage;
• send the interaction request to the server with updated interaction information;
• receive, from the server, a response to the interaction request, the response comprising further interaction information that comprises the updated interaction information and further time information from the server in accordance with the metadata structure;
• and
• determine one or more Quality of Experience (QoE) metrics based at least in part on the updated further interaction information.

A method comprising:

• receiving, by a server, communications from a client device, to configure a metadata structure to manage processing of user interactions with respect to a mixed-reality (MR) scene, the metadata structure comprising a series of time information determinations to be made at the client device and the server in processing the received interactions;
• receiving, at the server, an interaction request with interaction information,
• wherein the interaction information comprises a first time information at a first stage of processing of the interaction request at the client device;
• determining, at the server, a further time information at a second stage of the processing of the interaction request;
• and
• sending, to the client device, a response to interaction request, the response comprising further interaction information that comprises the interaction information and the further time information from the server in accordance with the metadata structure;
• wherein one or more Quality of Experience, QoE, metrics are based at least in part on the further interaction information.