5G AR Device-Type Signaling for Codec-Aware Media Delivery
Solution Overview
Problem
Existing 3GPP specifications lack specific support for signaling and optimized delivery of media content based on device type and aggregated media codec capabilities for augmented reality (AR) devices, leading to inefficiencies in video coding technology.
Innovation Solution
A method and apparatus for determining and transmitting device type and media capabilities indications, such as URI-based 'devicetype' and 'mediacap', during session negotiation between 5G endpoints to optimize AR data decoding and encoding, using WebSocket connections and SDP offers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 3GPP specifications do not include specific support signaling for device type and media codec capabilities, then the specification framework remains simple and general, but the network cannot optimize media delivery for specific AR device capabilities
Solution Approach 1:
The capability indication is segmented into distinct components: device type indication (identifying AR device category) and media capabilities indication (detailing codec support). This segmentation allows the network to process and optimize media delivery based on specific capability combinations without requiring complete capability lists, thus reducing signaling complexity while maintaining optimization capability.
Solution Approach 2:
Device capabilities are indicated during the session negotiation phase, before actual media transmission begins. This preliminary action allows the network to pre-configure optimized delivery parameters and codec selections, avoiding the need for complex real-time capability detection and enabling smoother media flow with reduced signaling overhead during active transmission.
2Reliability
If detailed device type and media capabilities are signaled during session negotiation, then media delivery can be optimized for specific AR devices, but the session negotiation process becomes more complex
Solution Approach 1:
The device type indication and media capabilities indication are merged into a unified capability exchange mechanism within the session negotiation protocol. This merging allows both pieces of information to be transmitted together in a single negotiation exchange, reducing the number of back-and-forth messages required and simplifying the negotiation process while still providing comprehensive capability information for reliable media delivery optimization.
3Productivity
If AR data is decoded based on device capabilities, then playback performance is optimized for the specific device, but the decoding process becomes more complex
Solution Approach 1:
The decoding process utilizes parameter changes based on received capability indications to adjust decoding parameters dynamically. By changing decoding parameters (such as codec selection, bitrate, resolution) according to the device's indicated capabilities, the system achieves optimized playback performance without requiring complex custom decoding algorithms - standard decoding processes simply adapt their parameters based on capability information.
Data Source
AI summary
A method and apparatus comprising computer code configured to cause a processor or processors to determine capabilities of an augmented reality (AR) device during a session negotiation between a first 5G endpoint and a second 5G endpoint, obtain AR data for a media component of at least one of audio and video based on the capabilities, determined based on any of a device type indication and a media capabilities indication, and process the AR data based on the capabilities of the AR device.