Preconfigured PDSCH Data Collection for 6G Path-Loss Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 6G communication systems face challenges in securing signal transmission distance and coverage due to severe path loss and atmospheric absorption in terahertz bands, necessitating improved technologies for radio frequency elements, antennas, and network structures to support hyper-connectivity and ultra-low latency.
Innovation Solution
Implementing a method and apparatus for data collection using a preconfigured physical downlink shared channel (PDSCH) to enhance data transmission quality by utilizing spare resources, incorporating artificial intelligence (AI) for link adaptation and beamforming, and optimizing network operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If terahertz band is used for 6G communication to achieve high data rate, then peak data rate is improved to tera-level bps, but path loss and atmospheric absorption increase severely reducing signal transmission distance
Solution Approach 1:
The patent introduces a new dimension of operation by utilizing idle time resources (time dimension) and spare frequency resources (frequency dimension) for additional PDSCH transmissions. This allows the system to transmit data in previously unused resource dimensions, effectively increasing capacity without adding harmful interference to existing transmissions.
Solution Approach 2:
The patent changes the parameter of resource allocation by introducing preconfigured PDSCH resources that are separately allocated from regular data PDSCH. This parameter change enables the system to utilize spare resources for additional transmissions, improving spectral efficiency and compensating for path loss through increased transmission opportunities.
2Productivity
If spare resources are utilized for additional PDSCH transmission to improve data collection, then resource utilization efficiency is improved, but system complexity increases due to additional configuration and management
Solution Approach 1:
The patent applies preliminary action by preconfiguring PDSCH resources in advance through RRC signaling. The base station and terminal agree on specific time-frequency resources for additional PDSCH transmissions before actual data transmission begins. This preliminary configuration simplifies real-time scheduling and reduces the complexity of dynamic resource management.
Solution Approach 2:
The system implements self-service by allowing terminals to autonomously identify and utilize preconfigured spare resources for data reception. The terminal independently determines when to expect additional PDSCH transmissions based on preconfigured parameters, reducing the need for complex real-time scheduling decisions and control signaling.
3Reliability
If AI technology is integrated for link adaptation and beamforming to improve transmission quality, then data transmission quality is improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent introduces AI/ML algorithms as an intermediary layer between the physical layer transmission and higher layer protocols. The AI model processes channel state information and transmission parameters, generating optimized beamforming weights and link adaptation decisions. This intermediary approach improves transmission quality while consolidating computational complexity into a dedicated AI processing module.
Solution Approach 2:
The patent segments the complex AI processing into distinct functional modules: channel state estimation, parameter extraction, AI inference, and control signal generation. This segmentation allows each module to be optimized independently and enables distributed implementation across base station and terminal, reducing the computational burden on any single device.
Data Source
AI summary
The disclosure relates to a 6G communication system for achieving high data transfer rate and ultra-low latency after 4G and 5G communication systems. In a method performed by a terminal, the terminal receives, from a base station, a message including information for receiving a preconfigured physical downlink shared channel (PDSCH), and receives the preconfigured PDSCH from the base station, based on the information for receiving the preconfigured PDSCH. In addition, the terminal performs decoding on the received preconfigured PDSCH, and transmits information on a result of the decoding to the base station. The preconfigured PDSCH may be used to collect information for improving a quality of data transmission or reception. Also, the preconfigured PDSCH may be received using a time when a PDSCH for data reception is not received.