Terminal Data Transfer Using Predefined Codec Tables
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Solution Overview
Problem
Existing data transfer methods between terminals require an initial exchange of capabilities and intents, leading to lengthy call setup periods before multimedia data can be exchanged, as they rely on message exchanges like TCS and MSD to determine suitable codecs, which can be delayed by adverse channel conditions.
Innovation Solution
A system and method that allow data transmission between terminals without waiting for initial capability exchanges, using a predefined digital table of codecs and establishing channels without identifying codec capabilities upfront, allowing immediate data transfer in a selected codec and switching to an alternative if necessary based on feedback from the receiving terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If capability exchange messages (TCS, MSD) are transmitted before data transfer, then codec compatibility is ensured, but call setup time increases
Solution Approach 1:
The patent applies preliminary action by pre-defining a digital table of codecs at the terminal before communication begins. This allows the terminal to immediately select and use a codec from the predefined table without waiting for capability exchange messages, thereby reducing call setup time while ensuring compatibility through the pre-established codec options.
Solution Approach 2:
The patent extracts the codec capability negotiation step from the traditional call setup sequence. Instead of requiring TCS and MSD messages to be exchanged before data transfer, the system separates codec selection (done via predefined table) from capability confirmation (done after initial data transmission), allowing data transfer to begin immediately while compatibility is verified subsequently.
2Speed
If data is transmitted immediately upon connection establishment, then transmission speed increases, but codec incompatibility may occur
Solution Approach 1:
The patent implements feedback by having the receiving terminal send a capability message after receiving initial data transmission. This feedback loop allows the transmitting terminal to verify whether the selected codec is compatible with the receiving terminal's capabilities. If incompatible, the system can switch to an alternative codec from the predefined table, ensuring reliability while maintaining fast initial transmission.
3Reliability
If traditional capability exchange protocol is used, then codec compatibility is guaranteed, but channel negotiation time increases
Solution Approach 1:
The patent applies preliminary action by pre-defining a digital table of codecs at the terminal before communication begins. This allows the terminal to immediately select and use a codec from the predefined table without waiting for capability exchange messages, thereby reducing call setup time while ensuring compatibility through the pre-established codec options.
Solution Approach 2:
The patent extracts the codec capability negotiation step from the traditional call setup sequence. Instead of requiring TCS and MSD messages to be exchanged before data transfer, the system separates codec selection (done via predefined table) from capability confirmation (done after initial data transmission), allowing data transfer to begin immediately while compatibility is verified subsequently.
Data Source
AI summary
A system and a method transmit data in a first codec from a first terminal to a second terminal. The first terminal establishes a connection with the second terminal and/or transmits, transfers and/or sends the data to the second terminal via the connection between the first terminal and the second terminal. The connection between the first terminal and the second terminal has a first channel and/or a second channel to transmit the data from the first terminal to the second terminal. The first terminal transmits the data in a first codec to the second terminal via the first channel and/or the second channel of the connection without receiving capabilities of and/or intentions from the second terminal. The second terminal may be incapable of receiving, of processing, of accepting and/or of displaying the data in the first codec. The capabilities of and/or the intentions from the second terminal is transmitted to the first terminal via the connection. The first terminal switches the data from the first codec to the second codec and/or transmits the data in the second codec to the second terminal via the connection between the first terminal and the second terminal.