Mobile Terminal Early Media Session Preliminary Message Transmission
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Solution Overview
Problem
Current mobile terminals cannot perform data communication with a called device before a call is connected, limiting their ability to send preliminary messages using voice or image data obtained before the call is established.
Innovation Solution
A mobile terminal with a wireless communication unit, input unit, and controller that generates and sends a preliminary message to a called device using a data section assigned to an early media session, allowing for voice or image data capture and transmission before the call is connected, with adjustable timing and size optimization based on the called device's operating state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile terminal sends a preliminary message before a call is connected, then user interaction and functionality are enhanced, but data communication protocols and timing coordination become more complex
Solution Approach 1:
The patent applies preliminary action by capturing voice or image data before the call is connected and sending it as a preliminary message through the early media session. This allows the calling terminal to prepare and transmit information in advance, enhancing user interaction before the actual call begins.
Solution Approach 2:
The patent uses the early media session as an intermediary channel to transmit preliminary messages between terminals before the call is connected. This mediator enables data communication during the setup phase without interfering with the main call establishment process.
2Adaptability or versatility
If voice or image data is captured and sent before call connection, then preliminary message functionality is improved, but data transmission timing and call establishment coordination become more complex
Solution Approach 1:
The system captures voice or image data and sends preliminary messages during the early media session before the call is fully connected. This preliminary action occurs in parallel with call establishment, not sequentially, so it does not extend the overall call setup time.
Solution Approach 2:
The early media session maintains continuous data transmission capability from the moment the call request is sent until the call is connected. This continuous channel allows preliminary messages to be transmitted without interrupting or delaying the call establishment process.
3Adaptability or versatility
If the mobile terminal uses the early media session data section for preliminary message transmission, then data communication before call connection is enabled, but data section allocation and session management become more complex
Solution Approach 1:
The early media session is designed to serve multiple functions: it establishes the call connection and simultaneously provides a data transmission channel for preliminary messages. This multi-functionality eliminates the need for separate data communication protocols during the setup phase.
Solution Approach 2:
The data section of the early media session is allocated and configured in advance during call setup, before the actual data transmission begins. This preliminary configuration simplifies session management by establishing all necessary parameters upfront rather than dynamically during transmission.
Data Source
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AI summary
Disclosed herein is a mobile terminal. The mobile terminal includes a wireless communication unit configured to perform a communication function with an external device, information acquisition means, and a controller configured to generate a call reception request message when a call transmission request is received, send the generated call reception request message to a called device, generate a preliminary message based on information obtained through the information acquisition means before a call is connected to the called device after receiving the call transmission request, and send the generated preliminary message to the called device.