TDMA Time Slot Multiplexing for Node Groups
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Solution Overview
Problem
In conventional TDMA communication systems, resource utilization and spectral efficiency are greatly reduced due to the exclusive allocation of time slots to individual nodes, limiting simultaneous data transmission.
Innovation Solution
The method involves determining multiplexing node groups based on connection relationships among nodes, where each group shares a multiplexing time slot, allowing multiple nodes to transmit data simultaneously, thereby improving resource utilization and spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time slots are exclusively allocated to individual nodes in conventional TDMA systems, then each node can transmit data without interference, but resource utilization and spectral efficiency are greatly reduced
Solution Approach 1:
The patent merges multiple time slots into a multiplexing time slot that can be shared by multiple nodes simultaneously. Nodes in the same multiplexing node group can transmit data in the same time slot without causing interference, thereby improving resource utilization while maintaining transmission reliability through spatial separation and interference management mechanisms
2Object-affected harmful factors
If only one node transmits data in each time slot, then signal interference is avoided, but spectral efficiency and resource utilization are greatly reduced
Solution Approach 1:
The patent transitions from one-dimensional time slot allocation to multi-dimensional resource allocation by introducing spatial dimension (node grouping based on connection relationships) and hierarchical dimension (multiplexing node groups within subnets). This allows multiple nodes to share time slots while managing interference through spatial separation, thereby improving spectral efficiency without sacrificing signal quality
3Ease of operation
If time slots are statically allocated to nodes, then allocation simplicity is maintained, but resource utilization efficiency decreases
Solution Approach 1:
The patent introduces dynamic elements into time slot allocation by forming multiplexing node groups based on real-time connection relationships and traffic conditions. The system dynamically determines which nodes can share time slots based on their spatial separation and interference characteristics, transforming static allocation into a flexible, adaptive mechanism that improves resource utilization while maintaining operational simplicity through automated group formation
Data Source
AI summary
A method and an apparatus for time slot multiplexing, and a communication device. At least one multiplexing node group in a subnet of a TDMA communication system may be determined according to a connection relationship among all nodes in the subnet, where a shortest communication link between every two nodes in each multiplexing node group includes at least the preset quantity of nodes, the preset quantity of nodes includes the two nodes, and the preset quantity is no less than 4. For each multiplexing node group, a multiplexing time slot allocated to the multiplexing node group is determined, and each node in the multiplexing node group is controlled to transmit data in the multiplexing time slot. The time slots can be shared by the nodes in the multiplexing node group, and therefore multiple nodes can transmit data in the multiplexing time slot.