Precoding Resource Units for 5G NR Data Transmission
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Solution Overview
Problem
Current Machine Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT) technologies in LTE networks face challenges in meeting the demands of IoT services requiring higher data rates and lower latency, especially with the increasing need for video surveillance, smart home, and industrial sensor monitoring, due to limitations in bandwidth and power efficiency.
Innovation Solution
A data communication method that uses precoding resource units with the same or different precoding matrices across time and frequency domains to enhance data processing efficiency and accuracy, improving coverage and meeting the requirements of mid-range IoT devices by optimizing data transmission in 5G NR systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional MTC and NB-IoT technologies are used in LTE networks, then power efficiency and coverage are maintained at acceptable levels, but data rates are insufficient and latency is too high for modern IoT applications
Solution Approach 1:
The patent applies parameter changes by transitioning from traditional LTE MTC/NB-IoT parameters to 5G NR parameters, including changed subcarrier spacing, numerology configurations, and resource allocation methods. These parameter changes enable higher data rates and lower latency while maintaining compatibility with existing IoT device architectures, thus resolving the contradiction between speed improvement and system complexity.
Solution Approach 2:
The patent implements dynamic resource allocation and flexible numerology configurations in 5G NR, allowing the system to adaptively adjust transmission parameters based on channel conditions and device capabilities. This dynamic approach enables optimization of data rates and latency performance without requiring complete redesign of device hardware, effectively managing the complexity-speed tradeoff.
2Productivity
If traditional MTC and NB-IoT technologies are used, then device simplicity is maintained, but processing efficiency and accuracy are insufficient for mid-range IoT devices
Solution Approach 1:
The patent segments the data processing task into multiple stages: physical layer processing, MAC layer processing, and higher layer processing. By dividing the processing function across different layers and using distributed antenna systems with multiple antenna elements, the system achieves higher processing efficiency without overburdening individual devices, thus resolving the contradiction between productivity and processing complexity.
Solution Approach 2:
The patent introduces network-side processing as an intermediary between IoT devices and the core network. The network performs complex signal processing, channel estimation, and data aggregation, while devices only perform simple modulation and demodulation. This intermediary approach significantly improves processing efficiency at the device level while maintaining overall system performance.
3Reliability
If existing LTE MTC and NB-IoT technologies are deployed, then network simplicity is maintained, but coverage and data transmission quality do not meet modern IoT requirements
Solution Approach 1:
The patent merges multiple antenna elements and transmission points into a unified 5G NR system that operates across multiple frequencies and time slots. By combining the advantages of beamforming, multi-antenna processing, and flexible resource allocation, the system achieves enhanced coverage and reliability. The merging is implemented through standardized protocols that add complexity only at the network coordination level, not at individual device level.
Data Source
AI summary
A data transmission method includes: determining data to transmitted; and carrying the data on a plurality of precoding resource units. The plurality of precoding resource units configured to carry the data adopt the same precoding matrix or different precoding matrices. The plurality of precoding resource units include a plurality of precoding time domain units, a plurality of precoding frequency domain units, or a plurality of precoding time domain units and a plurality of precoding frequency domain units.