DECT Fixed Point Master-Slave Slot Allocation
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Solution Overview
Problem
The existing DECT systems are limited in their ability to serve a large number of portable points due to the constraints of available slots for simultaneous duplex connections, which restricts the number of usable slots for radio frequency changes and communication capacity.
Innovation Solution
The implementation of a method that utilizes synchronized master and slave communication processors to allocate and manage communication slots, allowing for concurrent communication between a DECT fixed point and multiple portable points by defining blocked time periods for specific slots, thereby increasing the communication channel capacity and enabling service to a greater number of portable points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of slots is increased to serve more portable points, then the communication channel capacity is improved, but the complexity of managing simultaneous duplex connections and frequency changes increases
Solution Approach 1:
The system divides the communication slots into two distinct sets: a first set of slots for the first communication processor and a second set of slots for the second communication processor. This segmentation allows each processor to independently manage its own slots without interference, effectively doubling the communication channel capacity while maintaining manageable complexity for each individual processor.
Solution Approach 2:
Each communication processor is designed to handle multiple functions: managing its own set of slots for simultaneous duplex connections, performing radio frequency changes during unused slots, and establishing both dummy and traffic bearers. This multi-functionality allows the system to serve more portable points without proportionally increasing the number of processors required.
2Productivity
If more slots are used for simultaneous duplex connections, then the number of served portable points is improved, but the available slots for radio frequency changes are reduced
Solution Approach 1:
The slot sets are segmented such that the first communication processor uses odd-numbered slots (e.g., slots 1, 3, 5, 7, 9, 11) for duplex connections while the second communication processor uses even-numbered slots (e.g., slots 2, 4, 6, 8, 10, 12). This alternating pattern ensures that each processor always has dedicated slots available for both communication and frequency changes, maintaining adaptability while increasing overall capacity.
Solution Approach 2:
The system pre-allocates specific slots for radio frequency changes within each processor's slot set, ensuring that frequency changes can be performed in advance without interfering with active communications. This preliminary arrangement of slots guarantees that adaptability is maintained even as the number of served portable points increases.
Data Source
AI summary
A DECT system and a method for communicating between a DECT fixed point and multiple DECT portable points. The method may include step (a) of communicating between a master communication processor of the DECT fixed point and one or more DECT portable points during master communication slots. The method may also include step (b) of communicating between a slave communication processor of the DECT fixed point and at least one of the DECT portable points during slave communication slots. Step (a) and step (b) are executed according to an allocation of master communication slots and slave communication slots, wherein the allocation facilitates concurrent slave communication processor communications and master communication processor communications.