Wireless Device Frequency Reconfiguration Maintaining Transmission Cycle
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Solution Overview
Problem
In Industrial IoT (IIoT) wireless communication systems, terminal devices face challenges in maintaining transmission cycles when frequency changes occur, often resulting in inability to adapt frequency adjustments without disrupting communication.
Innovation Solution
A first wireless communication device and a second wireless communication device implement a reconfiguration mechanism for pre-allocated radio resources, allowing flexible frequency changes while maintaining the preconfigured transmission cycle through control signals, specifically using reconfiguration PDCCHs to adjust frequencies without altering transmission timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequency of pre-allocated radio resource is changed, then adaptability of wireless communication system is improved, but transmission cycle stability deteriorates
Solution Approach 1:
The patent separates the frequency configuration and transmission cycle configuration into independent controllable parameters. The reconfiguration PDCCH can independently adjust frequency resources while preserving the original transmission cycle timing, allowing frequency changes without disrupting the periodic transmission pattern.
Solution Approach 2:
The system pre-configures transmission cycles before actual data transmission begins. By establishing the transmission cycle timing in advance and maintaining it separately from frequency adjustments, the system ensures that periodic transmissions occur at predetermined intervals regardless of frequency changes.
2Adaptability or versatility
If frequency reconfiguration is implemented dynamically, then communication flexibility is improved, but system complexity increases
Solution Approach 1:
The reconfiguration PDCCH serves multiple functions: it activates pre-configured uplink resources, reconfigures frequency parameters, and maintains transmission cycle timing. This multi-functional approach consolidates what would otherwise require separate signaling mechanisms into a single unified control channel.
Solution Approach 2:
The system changes frequency parameters through controlled reconfiguration signals while keeping other parameters (transmission cycle, timing) constant. This selective parameter modification approach allows flexibility in frequency adjustment without requiring comprehensive system reconfiguration.
3Reliability
If transmission cycle is maintained during frequency changes, then communication reliability is improved, but frequency adjustment capability is constrained
Solution Approach 1:
The system dynamically adjusts frequency parameters while maintaining static transmission cycle timing. The reconfiguration PDCCH enables real-time frequency changes in response to channel conditions, interference levels, or network requirements, while the transmission cycle remains fixed to ensure reliable periodic communication.
Data Source
AI summary
A first wireless communication device that performs pre-allocated communication to communicate with a second wireless communication device, using a radio resource that is configured beforehand, the first wireless communication device includes a controller configured to reconfigure a frequency of a pre-allocated radio resource in the second wireless communication device while maintaining a preconfigured transmission cycle of the pre-allocated radio resource, and control implementation of the pre-allocated communication that uses the reconfigured frequency of the pre-allocated radio resource.