CSI Report Window Configuration for High-Doppler Scheduling

The patent implements dynamic CSI report configurations where the starting location and window size are no longer fixed but can be adjusted based on UE mobility conditions. The network entity configures multiple CSI report configurations with different starting locations and window sizes, allowing the system to adapt to varying channel conditions and mobility scenarios, thereby resolving the contradiction between scheduling flexibility and system complexity.

The patent changes the parameters of CSI reports (starting location offset and window size) based on Doppler threshold conditions. When Doppler threshold is exceeded indicating high mobility, different parameter configurations are applied compared to low mobility scenarios. This parameter adaptation enables scheduling flexibility while managing complexity through conditional configuration rather than fully dynamic adjustment.

The patent performs preliminary actions by configuring multiple CSI report configurations in advance, each with specific starting locations and window sizes suitable for different mobility conditions. The UE and network entity prepare these configurations beforehand, so when mobility conditions change, the appropriate pre-configured parameters can be activated without complex real-time calculations, thus improving data rate while managing codebook configuration complexity.

The patent implements feedback mechanisms where the UE reports CSI measurements that include information about channel conditions and mobility indicators. The network entity uses this feedback to determine which CSI report configuration (with specific starting location and window size) is most appropriate, thereby utilizing UE-side information to optimize data rates while keeping the configuration management systematic rather than overly complex.

The patent applies dynamic window sizes for CSI measurements based on Doppler conditions. For high Doppler (high mobility) scenarios, the system uses larger measurement windows to capture sufficient channel information despite rapid changes. For low Doppler scenarios, smaller windows are used. This dynamic adjustment optimizes spectral efficiency while adapting measurement precision requirements to actual channel conditions rather than imposing uniformly high precision requirements.

The patent changes the measurement window size parameter based on detected Doppler threshold conditions. When high mobility is detected, the window size is increased to maintain measurement reliability. This parameter adaptation allows the system to achieve good spectral efficiency in high Doppler conditions without requiring uniformly high measurement precision across all scenarios, as the precision requirement scales with the window size.