NR Sidelink Resource Feedback for Beam Alignment and Coverage

The patent implements dynamic resource allocation where the network device can flexibly allocate time-frequency resources for SL transmission based on real-time channel conditions and traffic requirements. This dynamic adjustment allows the system to optimize between high-speed transmission and coverage area by adapting resource allocation patterns to current conditions, resolving the contradiction between fixed high-frequency limitations and variable performance needs.

The patent changes key transmission parameters including time-frequency resource allocation, transmit power levels, and modulation schemes based on channel quality indicators and traffic patterns. By dynamically adjusting these parameters, the system can switch between modes that favor speed (when channel conditions are good) and modes that favor coverage (when channel conditions are poor), thus resolving the contradiction between transmission speed and coverage area.

The patent implements partial resource allocation where not all available time-frequency resources are continuously utilized for SL transmission. Instead, resources are allocated partially and selectively based on actual traffic needs and channel conditions, avoiding waste of spectrum resources while still providing sufficient bandwidth capacity when needed. This resolves the contradiction between having enough bandwidth capacity and utilizing spectrum efficiently.

The patent enables the same time-frequency resources to serve multiple purposes and different service types. The resource allocation mechanism can dynamically assign resources for different SL services (e.g., URLLC, eMBB, mMTC) based on their specific requirements, allowing the system to maximize spectrum utilization while maintaining adequate bandwidth capacity for each service type.

The patent implements feedback mechanisms where the network device receives channel quality indicators, acknowledgment signals, and transmission status reports from terminal devices. Based on this feedback, the network device adjusts resource allocation, power levels, and modulation schemes to maintain both high transmission efficiency and reliable communication. This closed-loop control resolves the contradiction between speed-optimized allocation and reliability requirements.

The patent employs proactive measures including transmitting redundancy information, performing channel quality measurements in advance, and allocating additional resources as buffers before transmission issues occur. These preparatory actions ensure that even when operating at high speeds for efficiency, the system maintains reliability margins and can quickly adapt to deteriorating conditions.