DECT Fixed Terminal RFPI Code Encoding for Portable Audio
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Solution Overview
Problem
Existing tour guide wireless audio systems are inefficient in allowing portable terminals to quickly switch between fixed terminals, as the current DECT registration process is time-consuming and not user-friendly, especially when tour groups change guides, leading to prolonged channel change times before receiving audio.
Innovation Solution
Assigning user-selectable identification numbers to fixed terminals using the DECT standard, where the identification number is encoded in the RFPI code, and periodically broadcasting a verification code to ensure correct terminal selection, allowing portable terminals to quickly and easily connect to the desired fixed terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the standard DECT registration process is used for portable terminals to connect to fixed terminals, then the connection process is automated, but the time required for channel switching is excessive and the user interface becomes unusable
Solution Approach 1:
The patent applies preliminary action by pre-configuring user-selectable identification numbers in the RFPI codes of fixed terminals before the portable terminal needs to connect. This allows the portable terminal to quickly identify and lock onto the desired fixed terminal without going through the complete automated registration process, significantly reducing channel switching time while maintaining ease of operation.
Solution Approach 2:
The patent extracts the identification function from the complex DECT registration process by encoding user-selectable identification numbers directly in the RFPI codes. This separation allows the portable terminal to perform quick identification and connection based on the extracted identification information, bypassing the time-consuming automated registration steps while preserving user interface usability.
2Adaptability or versatility
If multiple networks with different carrier frequencies and time slots are used for different fixed terminals, then flexibility in setting up groups is achieved, but the complexity of the system increases
Solution Approach 1:
The patent applies universality by using a single DECT network infrastructure to support multiple fixed terminals with different user-selectable identification numbers. The portable terminal can connect to any fixed terminal by selecting the appropriate identification number, providing group configuration flexibility without requiring separate physical networks for each group, thus avoiding increased system complexity.
Solution Approach 2:
The patent applies local quality by assigning specific user-selectable identification numbers to different fixed terminals based on their local group requirements. This allows each fixed terminal to have customized identification characteristics while operating within the same network framework, achieving group configuration flexibility without the need for multiple complex networks.
3Productivity
If the portable terminal scans for fixed terminals, locks to them, and goes through automated registration, then connection is established automatically, but the process is time-consuming and prevents fast channel switching
Solution Approach 1:
The patent applies preliminary action by pre-configuring user-selectable identification numbers in the RFPI codes of fixed terminals before connection is needed. This allows the portable terminal to quickly scan for and identify the desired fixed terminal based on the pre-configured identification number, lock onto it rapidly, and establish connection without undergoing the complete automated registration process, thereby significantly reducing the time from channel change to audio reception.
Solution Approach 2:
The patent applies skipping by allowing the portable terminal to bypass the time-consuming automated registration steps (scanning, locking, registration) and directly establish connection to the desired fixed terminal using the pre-configured user-selectable identification number in the RFPI code. This rushing through of the connection process dramatically improves connection establishment speed and reduces the time from channel change to audio reception.
Data Source
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AI summary
The present invention concerns a method for assigning user selectable identification number to each one of a plurality of fixed terminals (2), in order to allow one or more portable terminals (3) to select the desired user selectable identification number to receive the relevant data or audio signal from the corresponding fixed terminal (2) via radio frequency communication standard, wherein said radio frequency communication standard comprises DECT standard protocol, and wherein said method comprises the following steps: A. setting said user selectable identification number information for each fixed terminals (2); B. transmitting, by each fixed terminal (2), a first broadcast control signal comprising a respective RFPI code of said DECT standard protocol, wherein said user selectable identification number is encoded in the last 8 bits of said RFPI code; C. selecting by said portable terminal (3) a fixed terminal (2) by selecting the relevant user selectable identification number; D. periodically transmitting by each fixed terminal (2) a second broadcast control signal comprising a verification code, wherein each verification code of each of said fixed terminal (2) is univocally associated to each one of the user selectable identification numbers; and E. confirming by said portable terminals (3) whether the fixed terminal (2) is the correct one, by matching said verification code received by said second broadcast control signal with the selected received selectable identification number associated to the selected fixed terminal (2). The present invention also concerns a telecommunication system (1).