IoT Data Transmission via Adaptive Time-Frequency Resource Allocation
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Solution Overview
Problem
In 5G mobile communication systems, data transmission reliability is compromised when there is an overlap in time-frequency resources used by different business data, particularly in machine communication scenarios like Industry 4.0 and Internet of Vehicles, leading to poor performance and efficiency.
Innovation Solution
A robust data transmission method is implemented where a base station allocates and manages time-frequency resources, including sending allocation information and descriptions of transmission modes to terminals, allowing for adaptive transmission strategies that account for overlapping resources, ensuring reliable data packet transmission by merging information from different resource sets if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If time-frequency resources are allocated to different business data, then resource utilization is improved, but transmission reliability deteriorates when overlap occurs
Solution Approach 1:
The patent segments time-frequency resources into different sets (first time-frequency resource set, second time-frequency resource set, third time-frequency resource set) with clear definitions of overlapping and non-overlapping portions. This segmentation allows the system to identify and handle overlapping resources separately, preventing interference while maintaining high resource utilization through efficient allocation to different terminals.
Solution Approach 2:
The patent introduces an intermediary mechanism through the base station that manages resource allocation and detects overlaps between different terminal allocations. The base station acts as a mediator that coordinates resource usage, identifies overlapping resource sets, and applies appropriate transmission modes to ensure reliable communication while maximizing resource utilization across the network.
2Reliability
If adaptive transmission modes are implemented to handle overlapping resources, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic transmission modes that adapt based on the detected overlap status of time-frequency resources. The system dynamically selects between different transmission approaches (first transmission mode for non-overlapping resources, second transmission mode for overlapping resources) based on real-time resource allocation conditions, thereby improving reliability without requiring permanently complex device architecture.
Solution Approach 2:
The patent changes transmission parameters (transmission mode selection) based on the overlap status of allocated resources. When overlapping resource sets are detected, the system adjusts transmission parameters to use the second transmission mode with appropriate demodulation reference signal configurations, ensuring reliable transmission while keeping the adjustment logic straightforward and manageable.
3Reliability
If multiple transmission modes are used to handle overlapping resources, then data reliability is improved, but computational complexity increases
Solution Approach 1:
The patent performs preliminary detection and identification of overlapping resource sets before actual data transmission. The base station identifies overlapping portions between first and second time-frequency resource sets in advance and prepares appropriate transmission modes. This preliminary action allows the system to switch to reliable transmission modes only when necessary, reducing unnecessary computational complexity while ensuring data reliability when overlaps occur.
Solution Approach 2:
The patent applies different transmission modes locally based on the specific overlap conditions. Instead of using a uniformly complex transmission approach across all resources, the system applies the second transmission mode only to overlapping resource sets where it is needed, while using simpler first transmission modes for non-overlapping resources. This local quality approach improves data reliability in critical areas without unnecessarily increasing overall computational complexity.
Data Source
AI summary
A robust data transmission method in Internet of Things. Allocation information of a first time-frequency resource set and a description of a first transmission mode are sent by a base station to a first terminal, and a second time-frequency resource set is allocated by the base station to a second terminal. The first time-frequency resource set includes an overlapping resource set and a non-empty third time-frequency resource set. A second transmission mode of the first data packet is determined by the base station according to a continuity in time of resources in the third time-frequency resource set. A description of the overlapping resource set is sent by the base station to the first terminal. The second transmission method of the first data packet is confirmed by the first terminal, and the first data packet is received by the first terminal according to the first transmission mode and/or the second transmission mode.