Wireless Master Unit Slot Merging for TDMA-TDD Resource Optimization
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Solution Overview
Problem
In wireless communication systems using TDMA-TDD multiplex communication, the efficient utilization of wireless communication resources is hindered by the need for multiple slots for data transfer and acknowledgment between master and slave units, leading to resource depletion, especially when transferring data between two slave units.
Innovation Solution
A wireless communication system where a master unit receives data from one slave unit using one slot and transfers it to another slave unit using the same slot, eliminating the need for parallel links and allowing the same slot to be used for both data transfer and acknowledgment, thereby optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the master unit performs data transfer between two slave units using parallel links with separate slots for data transfer and acknowledgment, then communication reliability is improved, but wireless communication resources are depleted
Solution Approach 1:
The patent merges the data transfer and acknowledgment functions into a single slot. The master unit receives data from a first slave unit and transfers it to a second slave unit using the same time slot, eliminating the need for separate acknowledgment slots. This combining of multiple communication functions into one slot reduces resource consumption while maintaining communication reliability through sequential operation within the same time frame.
Solution Approach 2:
The patent makes the wireless communication slot universal by enabling it to perform multiple functions: data reception from one slave unit, data transfer to another slave unit, and implicit acknowledgment. Instead of dedicating specific slots to specific functions, the same slot structure is used flexibly for different communication purposes, optimizing resource utilization in the wireless communication system.
2Productivity
If multiple slot pairs are allocated for data transfer between slave units, then data transfer capability is improved, but the complexity of slot management increases
Solution Approach 1:
The patent segments the data transfer process into distinct phases within a single slot: reception phase (master receives from first slave), transfer phase (master sends to second slave), and acknowledgment phase (implicit acknowledgment). This segmentation allows complex data transfer operations to be organized into manageable stages within the same time slot, reducing the need for multiple slot pairs while maintaining transfer capability.
3Reliability
If separate slots are used for control signals and data transfer, then communication reliability is improved, but the number of available slots for data transfer decreases
Solution Approach 1:
The patent implements periodic action by establishing regular communication cycles where control signals and data transfer occur in an organized sequence. The master unit periodically receives control signals, performs data transfer operations, and sends acknowledgments in a rhythmic pattern. This periodic structure ensures reliable communication while maximizing the utilization of available slots for productive data transfer operations.
Data Source
AI summary
A wireless communication system includes a first wireless communication apparatus, a second wireless communication apparatus, and a third wireless communication apparatus which operates as a control station of controlling the first and second wireless communication apparatuses. The third wireless communication apparatus receives data from the first wireless communication apparatus using a first slot, and sends the received data to the second wireless communication apparatus and an acknowledgment of reception of the data to the first wireless communication apparatus using a second slot.