Receiver Internal Transmission-Over Indicator for Mode Transition
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Solution Overview
Problem
Receivers operating in reception mode face challenges in transitioning to other modes due to unreliable end-of-transmission signaling, leading to undefined states when end-of-transmission messages are lost or not delivered reliably, especially in point-to-multipoint transmissions.
Innovation Solution
Implementing an internal transmission-over indicator within the receiver that monitors and adapts to determine the end of transmission independently, allowing for a predictable mode change without relying on sender-controlled signaling, using timers or data amount counters, and potentially combining both for increased reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If end-of-transmission signaling is used from sender to receiver, then the receiver can be notified when transmission is complete, but the signaling may be lost or not delivered reliably leading to undefined receiver states
Solution Approach 1:
Instead of relying on the sender to signal transmission completion to the receiver, the invention inverts the approach by having the receiver independently determine transmission completion through monitoring its own internal parameters (data amount counter, timer) and comparing received data against expected transmission characteristics. This eliminates the reliability issue of sender-to-receiver signaling while maintaining reasonable control complexity.
Solution Approach 2:
The receiver performs self-service by autonomously determining transmission completion without requiring reliable external signaling. The receiver monitors its own reception state, compares actual received data amount and timing against expected values, and independently decides when transmission is complete, thereby ensuring reliable mode transition without depending on sender-controlled signals that may be lost.
2Reliability
If the receiver waits for end-of-transmission messages from the sender, then mode transition can be coordinated with the sender, but the receiver remains in an undefined state if messages are lost
Solution Approach 1:
The receiver prepares for mode transition by continuously monitoring transmission parameters during the reception phase. By pre-calculating expected transmission duration and data amount, and comparing these against actual reception, the receiver is ready to immediately transition modes upon determining transmission completion, eliminating delays associated with waiting for and processing end-of-transmission messages.
Solution Approach 2:
The invention implements feedback by having the receiver continuously monitor its own reception state and compare it against expected transmission characteristics. This internal feedback loop allows the receiver to autonomously detect transmission completion and trigger mode transition reliably, without being subject to message loss, thereby achieving both defined state transitions and timely response.
3Reliability
If acknowledgment messages are sent from receiver to sender, then reliable transmission completion can be confirmed, but acknowledgment implosion occurs in point-to-multipoint transmissions
Solution Approach 1:
The invention extracts the transmission completion determination function from the sender-receiver communication exchange and relocates it entirely to the receiver side. By removing the need for acknowledgment messages, the harmful effect of acknowledgment implosion in point-to-multipoint transmissions is eliminated, while transmission completion is still reliably determined through the receiver's independent monitoring of its own reception state.
Data Source
AI summary
A method of controlling a receiver that is arranged to operate in a reception operating mode for receiving an amount of data in a transmission from a sender and in one or more further operating modes, the method comprising: setting an internal transmission-over indicator to an initial value at the beginning of the transmission and subsequently adapting the internal transmission-over indicator in the course of the transmission, monitoring the internal transmission-over indicator in the course of the transmission in order to determine whether a transmission-over condition is fulfilled, and, in response to determining that the transmission-over condition is fulfilled, leaving the reception operating mode for entering one of the one or more further operating modes.