User Equipment Uplink Pause and Resume for Idle-Channel Access
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Solution Overview
Problem
Existing wireless communication systems lack flexibility and efficiency, particularly in handling diverse communication scenarios such as enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC) in a single technology framework.
Innovation Solution
The implementation of OFDM (Orthogonal Frequency Division Multiplex) with CP-OFDM and DFT-s-OFDM in downlink and uplink transmissions, respectively, along with resource grid configurations and carrier aggregation to enhance communication flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single technology framework is used to handle diverse communication scenarios, then system simplicity is maintained, but flexibility and efficiency are limited
Solution Approach 1:
The patent implements dynamic resource allocation where time-frequency resources are flexibly assigned based on real-time communication requirements. The system can dynamically switch between different numerologies (subcarrier spacings, cyclic prefix lengths) and resource allocation schemes to adapt to varying traffic types (eMBB, mMTC, URLLC), making the system structure movable and adjustable rather than fixed
Solution Approach 2:
The patent creates a universal resource allocation framework that can handle multiple communication scenarios (enhanced Mobile BroadBand, massive Machine Type Communication, and Ultra Reliable and Low Latency Communication) within a single technology framework. The same physical layer structures and resource grids are used across different service types, with flexibility achieved through parameter configuration rather than separate system designs
2Productivity
If traditional resource allocation methods are used, then system simplicity is maintained, but communication efficiency is limited
Solution Approach 1:
The patent segments the time-frequency resource grid into multiple resource blocks and resource element groups that can be independently allocated. This segmentation allows fine-grained resource allocation where different resource blocks can be assigned to different users and services based on their specific requirements, improving overall communication efficiency through optimized resource utilization
Solution Approach 2:
The patent employs parameter-based resource allocation where key parameters such as subcarrier spacing, cyclic prefix length, and resource block allocation patterns can be changed based on traffic conditions. This allows the system to optimize communication efficiency for different scenarios (e.g., using larger subcarrier spacing for URLLC, smaller for eMBB) without changing the fundamental system architecture
Data Source
AI summary
Terminal device initiates a COT-u at the beginning of an FFP-u after the channel is sensed to be idle. In a case that the maximum COT overlaps with an IP-g and the beginning of the IP-g is before the beginning of the IP-u, the uplink transmission is paused before or at the beginning of the IP-g and the uplink transmission is resumed after the channel is sensed to be idle.