MRBT Platform Media Negotiation for 3G Multimedia Delivery
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Solution Overview
Problem
Existing voice CRBT service systems cannot be directly used to implement the more complex Multimedia Ring Back Tone (MRBT) service in 3G communication networks, which requires support for multimedia content such as video and audio.
Innovation Solution
A method and system that involve a Multimedia Ring Back Tone (MRBT) platform performing media capability negotiations with calling and called parties to establish communication links, determine supported media types, and play pre-customized MRBTs, using an Originated Mobile Switch Center (O_MSC) and a Terminated Mobile Switch Center (T_MSC) to manage call connections and media conversions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voice CRBT service systems are used, then simple voice ring back tone service can be provided, but multimedia content delivery capability is insufficient
Solution Approach 1:
The patent introduces an MRBT platform as an intermediary component between the existing voice CRBT service system and the calling terminal. This platform performs media capability negotiation with the terminal, determines supported media types, and delivers appropriate multimedia content (video, audio, or both). The intermediary approach allows the system to maintain backward compatibility with existing voice CRBT infrastructure while adding multimedia delivery capability through a dedicated mediation layer that handles capability matching and content selection.
2Ease of operation
If media capability negotiation is performed, then seamless multimedia content delivery is achieved, but service implementation complexity increases
Solution Approach 1:
The patent implements media capability negotiation as a preliminary action during the call setup phase, before actual multimedia content delivery. The MRBT platform negotiates with the calling terminal to determine supported media types (video, audio, or both) and establishes the appropriate delivery mode in advance. This preliminary capability assessment simplifies subsequent content delivery by pre-configuring the system based on terminal capabilities, avoiding complex real-time adaptations during content playback.
3Adaptability or versatility
If existing voice CRBT systems are used without modification, then system simplicity is maintained, but MRBT service cannot be implemented
Solution Approach 1:
The patent designs the MRBT platform with multi-functional capability to handle various media types (video, audio, or both) and different negotiation scenarios. The platform can adaptively select delivery modes based on terminal capabilities and service requirements, making it a universal solution that works with different terminal types and media formats. This multi-functionality allows the system to implement MRBT services without requiring separate specialized systems for each media type or negotiation scenario.
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AI summary
A Multimedia Customized Ring Back Tone (MRBT) service platform, a terminal and a system for implementing an MRBT service are provided in the present invention. A method for implementing an MRBT service is further disclosed, which includes: performing, by a Multimedia Ring Back Tone (MRBT) platform, a first media capability negotiation with a calling party before a called party answers a call after the calling party initiates the call to the called party; playing, by the MRBT platform, an MRBT for the calling party according to the result of the first media capability negotiation. The scheme of the present invention may implement an MRBT service in a 3G communication network.