Time-Division Multiplexing Echo Sub-Slot Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems lack reliability due to issues such as noise and interference, which can lead to missed data signals and unsuccessful transmissions between communication nodes.
Innovation Solution
A communication system employing a time-division multiplexing technique with transmission and echo sub-slots, where communication nodes analyze received data signals, generate and transmit echo signals if necessary, and synchronize them to ensure successful data delivery, increasing redundancy and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single transmission sub-slot is used for data communication, then the communication system operates with simple structure and short time duration, but the reliability of data transmission deteriorates due to noise and interference causing missed data signals
Solution Approach 1:
The communication slot is segmented into two distinct sub-slots: a transmission sub-slot for sending data signals and an echo sub-slot for sending echo signals. This segmentation allows the system to separate the data transmission function from the acknowledgment function, enabling reliable detection of transmitted data while maintaining efficient time utilization.
Solution Approach 2:
The echo signal is prepared and transmitted in advance within the echo sub-slot before the next transmission sub-slot begins. This preliminary action ensures that acknowledgment information is available before new data transmission starts, enabling timely error detection and retransmission decisions without extending the overall communication cycle.
2Reliability
If echo signals are transmitted by all communication nodes, then the reliability of data reception is improved through multiple echoing opportunities, but the device complexity and energy consumption increase
Solution Approach 1:
Each communication node is designed with multi-functionality, capable of both transmitting data signals in the transmission sub-slot and generating echo signals in the echo sub-slot. This universal design allows any node to serve as either a data sender or an echo provider depending on the communication phase, simplifying the overall system architecture while maintaining high reliability.
Solution Approach 2:
The echo signal serves as a feedback mechanism where receiving nodes confirm successful data reception by transmitting echo signals in the echo sub-slot. This feedback loop enables the transmitting node to verify data delivery status and initiate retransmission if necessary, significantly improving data reception reliability through systematic acknowledgment.
Data Source
AI summary
An embodiment of the invention relates to a method of operating a communication system (10) that comprises at least four communication nodes (A, B, C, D). The communication system is operated in a time-division multiplexing technique wherein the communication is carried out in consecutive time frames which are divided into slots. At least one slot is allocated to each of the communication nodes. Each of the slots comprises, or preferably consists of, at least two consecutive sub-slots, hereinafter referred to as transmission sub-slot (TSS1-TSS4) and echo sub-slot (ESS1-ESS4). Echo signals (E (DS1)-E (DS4)) are transmitted during echo sub-slots (ESS1-ESS4).