Call Processing with Selective Resource Reservation for Video Ringback
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Solution Overview
Problem
In communications networks that do not support resource reservation mechanisms, video ring back tone services are limited due to the lack of media negotiation for video ring back tone, leading to suboptimal user experience.
Innovation Solution
Implement resource reservation mechanisms for secondary media negotiation by modifying call request messages to indicate support for secondary media, enabling the media server to perform resource negotiation and play the secondary media, even if the network does not support it for primary media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network device discards the first indication information indicating resource reservation support in the call request message because the network does not support resource reservation for first media, then the network configuration is maintained, but the media server cannot perform resource negotiation for second media and video ring back tone service development is limited
Solution Approach 1:
The patent segments the resource reservation support indication into two distinct parts: first indication information for first media and second indication information for second media. This allows the network device to selectively indicate support for resource reservation on different media types, enabling the media server to perform resource negotiation for second media even when the network does not support it for first media.
Solution Approach 2:
The network device acts as an intermediary by modifying the call request message to include second indication information that indicates resource reservation support for second media. This intermediary action preserves and transmits the resource reservation support information to the media server, enabling video ring back tone service while maintaining network configuration constraints.
2Adaptability or versatility
If the network device enables resource reservation mechanism for second media negotiation, then video ring back tone service is facilitated and user experience is enhanced, but the network complexity increases due to differential media support configuration
Solution Approach 1:
The patent applies local quality by enabling resource reservation support specifically for second media (video ring back tone) while maintaining the network's existing configuration for first media. This localized enhancement allows the network to provide advanced services for specific media types without requiring comprehensive network-wide changes, thus improving service capability with minimal increase in overall network complexity.
3Adaptability or versatility
If the network device modifies the call request message to include second indication information, then resource negotiation for second media is enabled, but the message processing complexity increases
Solution Approach 1:
The network device performs preliminary action by pre-configuring the second indication information in the call request message before forwarding it to the media server. This preliminary preparation of the message with appropriate indication information simplifies subsequent processing at the media server and other network elements, as they can directly interpret the pre-prepared indication without requiring complex real-time analysis.
Data Source
AI summary
A call processing method comprises: a network device receives a call request message sent by an originating UE, determines, according to the call request message, that the originating UE supports a resource reservation procedure, and further transmits, to a media server, indication information indicating that use of the resource reservation procedure for negotiation about first media is not supported and use of the resource reservation procedure for negotiation about second media is supported, so that negotiation about the second media is implemented by using the resource reservation procedure.