TCI State Restrictions for Sub-Band Full-Duplex Downlink Beams

The patent applies dynamics by making the TCI state configuration flexible and adaptive. The network can dynamically indicate whether a TCI state is restricted for downlink communications during SBFD operations, allowing the system to switch between restricted and unrestricted modes based on operational conditions. This dynamic configuration enables the UE to use appropriate TCI states (restricted or unrestricted) depending on whether SBFD is active, thereby maintaining communication reliability while preserving beam selection flexibility when needed.

The patent extracts the TCI state restriction indication from the general TCI state configuration. Instead of embedding restriction information within the complex TCI state structure, the network separately indicates whether a TCI state is restricted for downlink communications. This extraction simplifies the TCI state configuration by separating the restriction status as an independent indicator, reducing configuration complexity while maintaining the ability to determine appropriate TCI states for downlink reception during SBFD operations.

The patent applies partial action by providing TCI state restriction information only when necessary. The network indicates whether a TCI state is restricted for downlink communications based on the operational context (e.g., during SBFD operations). This partial indication approach provides sufficient information for the UE to make accurate beam selections without transmitting complete TCI state configurations repeatedly, thereby reducing signaling overhead while maintaining beam selection accuracy.