Segmented Transmission Blocks for Unstable Channel Accuracy
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Solution Overview
Problem
In Machine Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT), the instability of channel status during data transmission leads to incorrect reception of data when multiple transmission blocks are intensively transmitted, affecting accuracy and power consumption.
Innovation Solution
The method involves dividing each transmission block into multiple non-continuously transmitted time-domain units and alternately transmitting these units to improve data transmission accuracy by mitigating the impact of unstable channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple transmission blocks are intensively transmitted sequentially to save power consumption, then power consumption is reduced, but data transmission accuracy deteriorates due to unstable channel conditions
Solution Approach 1:
The patent divides each transmission block into multiple transmission units in the time domain. Instead of transmitting the entire TB continuously, the transmission content is segmented into n transmission units that are transmitted alternately and non-continuously. This segmentation allows the system to spread transmissions over time, avoiding the pitfall of intensive transmission while still maintaining power efficiency.
Solution Approach 2:
The patent implements periodic action by transmitting the n transmission units alternately and non-continuously in the time domain. Rather than continuous intensive transmission, the system uses periodic transmission intervals, where transmission units are sent at separated time points. This periodic approach allows the channel conditions to vary between transmissions, reducing the risk that all units are affected by the same poor channel state.
2Reliability
If one PDCCH schedules one TB for each transmission block, then data transmission accuracy is maintained, but terminal power consumption increases due to repeated demodulation
Solution Approach 1:
The patent merges multiple transmission blocks into a single scheduling unit. Instead of requiring separate PDCCH demodulation for each TB, the system allows one PDCCH to schedule multiple TBs that are transmitted as segmented units. This merging reduces the number of times the terminal must perform full PDCCH demodulation, thereby reducing power consumption while maintaining the ability to transmit multiple data blocks.
Solution Approach 2:
The PDCCH is given multi-functionality by enabling it to schedule multiple transmission blocks simultaneously. Rather than being limited to scheduling only one TB, the enhanced PDCCH can schedule multiple TBs with different segmentation patterns. This universal scheduling capability allows the system to maintain accurate data transmission while reducing the overhead of repeated scheduling operations.
3Reliability
If transmission units are transmitted non-continuously in time domain, then data transmission accuracy is improved by mitigating channel instability, but transmission time increases
Solution Approach 1:
The patent introduces dynamic adaptability by allowing the system to adjust transmission strategies based on channel conditions. The segmentation and alternate transmission of units enable dynamic response to varying channel states. When channel conditions are good, transmissions can be completed faster; when conditions deteriorate, the segmented structure allows for potential retransmission of only affected units rather than entire blocks, thus managing time loss efficiently.
Solution Approach 2:
The system changes transmission parameters by dividing TBs into multiple units with different time domain characteristics. Each transmission unit can be transmitted with optimized parameters suitable for its specific time slot and channel condition. This parameter adaptation allows the system to improve reliability through non-continuous transmission while minimizing time loss by optimizing each individual transmission unit's parameters.
Data Source
AI summary
The present application relates to the technical field of communications, and provided thereby are a data transmission method, device, equipment and system and a storage medium. The method comprises: generating m transmission blocks (TB) according to data to be transmitted, each TB comprising partial data from within the data, and m≥2; dividing transmission content related to each TB into n transmission units within time domain, wherein n≥2; and transmitting the n transmission units related to each TB alternately to a receiving terminal in the time domain, the transmission of the n transmission units in the time domain being non-continuous.