Uplink Sub-Band Precoding for Frequency-Selective Coverage Enhancement

The patent implements dynamic BWP configuration where the network can switch between different bandwidth parts based on channel conditions and traffic demands. This dynamic adaptation allows the system to optimize coverage by activating appropriate BWPs without permanently increasing complexity, as the system only maintains multiple configurations rather than simultaneously processing all of them.

The system changes transmission parameters including precoder selection, bandwidth part configuration, and resource allocation based on channel state information. By dynamically adjusting these parameters, the system enhances coverage in specific frequency regions without requiring full-system complexity increases, applying parameter changes only where needed for coverage enhancement.

The patent applies different precoders to different frequency resources and user equipment based on local channel conditions. Instead of using a single precoder for all transmissions, the system selects appropriate precoders locally for each resource block group or user, optimizing signal quality where needed while avoiding unnecessary processing complexity in regions where simple precoding suffices.

The system uses multiple precoders selectively rather than simultaneously for all transmissions. By applying complex precoding only when channel conditions warrant it (partial action), the system improves signal quality for critical transmissions without incurring the full processing complexity of maintaining multiple active precoders continuously.

The patent divides the available bandwidth into multiple bandwidth parts that can be independently allocated to different users and services. This segmentation allows efficient resource utilization by assigning only the necessary bandwidth portions to each user, improving overall resource utilization while the modular structure enables compact signaling for BWP configuration and switching.

The system performs preliminary configuration of multiple bandwidth parts during initial connection setup, storing these configurations for later use. This preliminary action reduces subsequent signaling overhead because the actual BWP switching can reference pre-configured parameters rather than transmitting full configuration details each time a BWP change is needed.