IMS ProSe Relay for Mission-Critical Multimedia
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Solution Overview
Problem
Current critical communication services, such as MCPTT, MCVIDEO, and MCDATA, face challenges in providing reliable and efficient mission-critical communication solutions, especially in scenarios where traditional network coverage is limited, and there is a need for enhanced call capabilities beyond audio, including video and data support.
Innovation Solution
The implementation of a system that utilizes ProSe (Proximity Services) capabilities, allowing UE-to-Network relays for remote UEs to access the network, and enhanced IMS registration and call setup procedures, including the use of advanced IMS communication service identifiers and application reference identifiers to support multimedia capabilities like audio, video, and data, while maintaining compatibility with existing MCPTT releases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional network coverage is used for critical communication services, then infrastructure requirements are reduced, but service reliability deteriorates in areas with limited network coverage
Solution Approach 1:
The patent introduces a ProSe application server as an intermediary component that enables direct device-to-device communication for critical services. This server manages proximity-based communication sessions, allowing reliable communication in areas where traditional network infrastructure is unavailable or limited, thus improving service reliability without requiring extensive network infrastructure expansion.
2Adaptability or versatility
If traditional audio-only MCPTT services are provided, then system complexity is reduced, but communication capability deteriorates due to lack of video and data support
Solution Approach 1:
The patent implements a universal communication framework that supports multiple media types (audio, video, data) through a single integrated system. The ProSe application server and enhanced IMS registration procedures enable the system to handle diverse communication capabilities while maintaining a unified architecture, thereby improving communication versatility without proportionally increasing system complexity.
Solution Approach 2:
The patent utilizes parameter changes in IMS communication service identifiers and application reference identifiers to dynamically support different media types. By modifying these identification parameters, the system can adapt to support audio-only, video-enhanced, or data-intensive communication modes without requiring fundamentally different system architectures, thus enhancing communication capability while controlling complexity.
3Adaptability or versatility
If enhanced IMS registration procedures with advanced identifiers are implemented, then multimedia capability is improved, but compatibility with existing MCPTT releases deteriorates
Solution Approach 1:
The patent implements preliminary action by establishing enhanced IMS registration procedures and advanced identifier structures before deploying multimedia services. This preparatory configuration of communication service identifiers and application reference identifiers ensures that when multimedia services are activated, they can operate seamlessly alongside existing MCPTT services, thereby improving multimedia capability while maintaining backward compatibility through pre-established identification frameworks.
Data Source
AI summary
A wireless device transmits, to a second wireless device via an internet protocol multimedia subsystem (IMS) network entity, a session initiation protocol (SIP) invitation. The SIP invitation may comprise a session description protocol (SDP). The SDP may comprise a media type and one or more attributes. The media type may identify a protocol for controlling operational orders. The controlling operational orders may comprise at least: mechanical operational orders; and electrical operational orders. The one or more attributes may identify a format of the protocol to establish a SIP session. The wireless device may receive, from the second wireless device via the IMS network entity, a SIP confirmation for the SIP session. The wireless device may control the second wireless device employing the controlling operational orders identified by the media type.