Time-Division Multiplexing Bandwidth Extension via Dynamic Frame Adjustment
Solution Overview
Problem
In time division multiplexing networks, existing methods for extending bandwidth can lead to delays in communication, causing failures in guaranteeing bandwidths for individual time slots.
Innovation Solution
A time division multiplexing communication system with a master node and slave nodes that utilize a bandwidth extension instruction to modify communication frames, advancing the start time of subsequent cycles, extending designated time slots, and shortening other time slots to ensure uninterrupted bandwidth guarantees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bandwidth of a time slot is extended during communication, then the data transmission rate is improved, but the start time and end time of communication in following time slots are delayed
Solution Approach 1:
The communication frame is divided into multiple time slots, each assigned to specific channels. When bandwidth extension is needed, the system segments the frame structure to allow dynamic adjustment of individual time slot durations without affecting the entire communication cycle, thereby maintaining timing guarantees for subsequent slots.
Solution Approach 2:
The time slot durations are made variable rather than fixed. The system dynamically adjusts the duration of specific time slots based on actual communication needs, allowing extension when required while maintaining the ability to guarantee bandwidth for individual time slots through controlled variability in the communication frame structure.
2Productivity
If time slots are assigned to channels to extend bandwidth, then the channel bandwidth is increased, but time not used for communication is wasted when time slots cannot be successively assigned
Solution Approach 1:
The system changes the parameter of time slot duration dynamically. When time slots cannot be successively assigned to a channel, the system adjusts the duration parameters of time slots to optimize bandwidth utilization, allowing flexible adaptation to various communication scenarios and reducing wasted time while maintaining guaranteed bandwidth.
3Productivity
If the duration of time slots is extended, then the bandwidth for communication is increased, but the guarantee of bandwidth for individual time slots fails
Solution Approach 1:
The system performs preliminary assignment of time slots to channels with predetermined durations before actual communication occurs. This preliminary structuring ensures that bandwidth guarantees can be maintained while still allowing for controlled extensions when needed, as the basic time slot allocation is established in advance.
Data Source
AI summary
A master node (11) transmits a bandwidth extension instruction including an extension duration DEX, an extension time slot number NEX, and an extension time TEX to multiple slave nodes (12). The master node (11) and the multiple slave nodes (12) execute a bandwidth extension process of modifying a communication frame such that the start time of the following cycle following the cycle designated by the extension time TEX is advanced by the extension duration DEX, the time slot identified by the extension time slot number NEX is extended by the extension duration DEX, and the time slot identified by the shortening time slot number NSH is shortened by the extension duration DEX. The master node (11) and the slave nodes (12) communicate with each other using the assigned time slots.