SDP Message Interaction Information Extraction
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Solution Overview
Problem
Existing communication technologies require extra processing overheads due to the need for encoding and decoding interaction information at both the transmit and receive ends when transmitting interaction information during video ring back tone services, which increases complexity and delays.
Innovation Solution
The proposed solution configures interaction information directly into a Session Description Protocol (SDP) message, eliminating the need for encoding and decoding at the transmit and receive ends, and uses a network architecture that includes a Ring Back Tone Application Server (RBT-AS), an Interaction Resource Server (IRS), and a Ring Back Tone Media Resource Server (RBT-MRS) to manage and transmit interaction content without additional encoding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If interaction information is transmitted through encoding into the video ring back tone media stream, then the interaction information can be conveyed to the calling terminal, but extra processing overheads are required at both transmit and receive ends
Solution Approach 1:
The patent extracts interaction information from the media stream transmission path and places it into signaling messages (SDP, SIP) instead. This separation allows interaction information to be transmitted independently without requiring encoding/decoding operations, thereby reducing coding complexity while ensuring information delivery.
Solution Approach 2:
The patent introduces signaling messages (SDP, SIP) as intermediaries to carry interaction information between network elements and terminals. These signaling messages serve as a dedicated transmission channel that bypasses the media stream encoding/decoding process, reducing processing overhead while maintaining information integrity.
2Loss of information
If coders are deployed at the transmit end and the receive end for encoding and decoding respectively, then interaction information can be transmitted through the media stream, but extra processing overheads are required
Solution Approach 1:
The patent removes interaction information from the media stream transmission path and places it into signaling messages. This extraction eliminates the need for encoding/decoding operations at transmit and receive ends, thereby reducing processing time while ensuring interaction information is still delivered through the signaling channel.
Solution Approach 2:
The patent performs preliminary configuration of interaction information into signaling messages (SDP, SIP) before media stream transmission. This preliminary action ensures that interaction information is already prepared and available in the signaling channel, eliminating the need for real-time encoding/decoding operations during media stream processing.
3Loss of information
If interaction information is encoded into the video ring back tone media stream, then the calling terminal can obtain interaction information, but additional coders are required at both ends
Solution Approach 1:
The patent extracts interaction information from the media stream transmission path and conveys it through signaling messages instead. This extraction eliminates the need for additional coders at transmit and receive ends, reducing device complexity while ensuring the calling terminal can still acquire interaction information through the signaling channel.
Solution Approach 2:
The patent introduces signaling messages (SDP, SIP) as intermediaries to carry interaction information between the server and calling terminal. These signaling messages provide a dedicated transmission channel that does not require coding/decoding operations, thereby reducing device complexity while ensuring information acquisition.
Data Source
Figure 1A~1B
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AI summary
This application provides an interaction information transmission method and apparatus. The method includes: receiving, by a calling terminal, an SDP message sent by an RBT-AS, where the SDP message includes interaction information related to a video ring back tone; receiving, by the calling terminal, a video ring back tone media stream sent by an RBT-MRS, where the video ring back tone media stream includes the video ring back tone; and playing, by the calling terminal, the video ring back tone in a display interface, and displaying interaction content related to the interaction information. In this application, the RBT-AS configures the interaction information into the SDP message and sends the SDP message to the calling terminal, so that after obtaining the SDP message, the calling terminal does not need to perform decoding and can directly obtain the interaction information from the SDP message. In addition, when sending the interaction information, the RBT-AS that serves as a transmit end does not need to encode the interaction information either. Therefore, encoding and decoding processes are not required at the transmit end and a receive end respectively, and extra processing overheads are avoided.