5GMS AR Media Streaming With Flexible Background Transfer Scheduling
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Solution Overview
Problem
Existing 5G augmented reality devices face challenges with intensive processing needs, including parallel media decoding and rendering, where current specifications lack clarity on how often and with what increments position information should be captured and sent to the network, leading to network and server overheads, and the 3GPP interfaces are limited in functionality for background data transfer.
Innovation Solution
A method and apparatus that determine a plurality of days of the week and number of occurrences for 5G media-streaming background data transfer, using a 5GMS media session handler to control media stream transfer based on these determinations, and implement a subscription method for service access information updates without periodic requests, enhancing the 5GMS MSH interface with extended functionality for media delivery sessions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device sends position information frequently to the network for split rendering, then the rendering quality and responsiveness are improved, but the network overhead and server computational overhead increase
Solution Approach 1:
The patent implements periodic transmission of position information at configured intervals rather than continuous transmission. The network can configure different reporting intervals based on service requirements, allowing the device to send position updates periodically (e.g., every N milliseconds or after M position changes), thereby reducing network overhead while maintaining acceptable rendering quality.
Solution Approach 2:
The patent introduces dynamic adjustment of position information transmission based on movement thresholds and network conditions. When the device detects significant position changes exceeding a threshold, it triggers immediate transmission. Otherwise, it waits for the next periodic interval. This dynamic approach optimizes the balance between rendering quality and network overhead by adapting transmission frequency to actual needs.
2Loss of information
If the UE periodically requests service access information through pull interface, then the service updates are obtained, but the network signaling overhead and energy consumption increase
Solution Approach 1:
The patent inverts the traditional pull-based service access information update mechanism into a push-based mechanism. Instead of the UE periodically requesting updates, the network proactively pushes service access information updates to the UE when changes occur. This is achieved through event-driven notifications where the network detects changes and automatically notifies subscribed UEs, eliminating the need for periodic pull requests and reducing network signaling overhead.
3Ease of manufacture
If the background data transfer uses a single fixed time window, then the implementation is simple, but it cannot adapt to varying user needs and network conditions throughout the day
Solution Approach 1:
The patent segments the single fixed time window into multiple configurable time windows throughout the day. Each window can have different characteristics (start time, duration, priority) to accommodate varying user needs and network conditions. The system can configure multiple BDT windows for different time periods (e.g., morning, afternoon, evening) or different days of the week, allowing flexible adaptation while maintaining relatively simple implementation through standardized configuration parameters.
Data Source
AI summary
A method and apparatus comprising computer code configured to cause a processor or processors to obtain augmented reality (AR) data of a media component of at least one of audio and video; determine a plurality of days of a week and any of a number of occurrences of and an end date of a 5G media-streaming (5GMS) background data transfer (BDT); and control, based on an indication of a resource of a 5GMS media session handler (MSH) indicating any of a started, stopped, and teared-down state, transfer of a media stream of the media component by the 5GMS BDT according to a result of determining the plurality of days of the week and the any of the number of occurrences and end date.