SIP Feature Tags for Immersive Service Identification in IMS
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Solution Overview
Problem
Current 3GPP IMS and MCX networks lack the capability to identify and handle immersive services such as holographic, augmented reality, and virtual reality calls, which are essential for enhanced mobile broadband services in 5G networks.
Innovation Solution
The proposed method involves using feature tags and media tags within SIP REGISTER and INVITE requests to register and establish immersive call services. Specifically, SIP media tags like 'sip.hologram' and 'sip.xr' are used to indicate support for hologram and extended reality media streams, while IMS Communication Service Identifiers (ICSI) and IMS Application Reference Identifiers (IARI) are used to identify the capabilities of client devices for handling immersive services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current 3GPP IMS and MCX networks are used without extensions, then the network architecture remains simple and standardized, but the network cannot identify or handle immersive services such as holographic, AR, and VR calls
Solution Approach 1:
The patent segments the service identification process by introducing separate feature tags for different immersive service types (holographic, AR, VR) within the SIP protocol. Each service type is identified by specific feature tags that can be independently handled by the network, allowing granular control without requiring complete protocol redesign.
Solution Approach 2:
The patent uses feature tags as intermediary elements that bridge the gap between existing SIP infrastructure and new immersive service requirements. These tags act as metadata carriers that enable the network to recognize and route immersive services through existing IMS and MCX architectures without fundamental changes.
2Reliability
If feature tags are added to SIP REGISTER and INVITE requests, then immersive services can be identified and routed properly, but the signaling message size and processing complexity increase
Solution Approach 1:
The feature tags are designed to be universally applicable across multiple SIP message types (REGISTER, INVITE, and other signaling messages). The same tagging mechanism serves multiple functions: service identification, capability negotiation, and routing guidance, reducing the need for separate mechanisms for each function.
Solution Approach 2:
The patent modifies existing SIP protocol parameters by adding feature tag attributes to standard message headers. This approach leverages the existing SIP message structure and uses parameter extensions rather than creating entirely new message formats, minimizing processing overhead while enabling new service identification capabilities.
3Adaptability or versatility
If the network supports multiple immersive service types, then service versatility improves, but the difficulty of detecting and measuring service capabilities increases
Solution Approach 1:
The patent uses distinct feature tags for different immersive service types, analogous to color coding for differentiation. Each service type (holographic, AR, VR) has its own identifiable tag, making it easy for the network to detect and distinguish between different service capabilities without complex analysis of device parameters.
Data Source
AI summary
The disclosure relates to methods and system for handling immersive services with feature tags in an 3GPP IP multimedia subsystem (IMS) and 3GPP mission critical services (MCX). A user equipment uses the media tags, feature tags with unique IMS communication service identifier (ICSI) and IMS application reference identifier (IARI) to communicate with the IMS network for determining the immersive services in the communication. Accordingly, a method includes: performing, a registration with a network for handling immersive call services based on feature tags included in a session initiation protocol (SIP) REGISTER request; determining whether the network provides a provision for the handling of immersive call services based on an SIP REGISTER response; and sending an SIP INVITE request including feature tags to a second client device via the network based on determining that the network provides the provision of handling immersive media streams. Thus, the immersive call is established by the first client device with the second client device.