Multi-TTI Scheduling for NR Unlicensed HARQ Timing

The patent performs LBT procedure in advance before a burst of transmissions rather than before every individual TTI transmission. The gNB acquires the channel once and maintains it for multiple consecutive TTIs, allowing preliminary channel access that eliminates repeated LBT operations while ensuring fair coexistence through initial channel sensing.

The patent enables continuous transmissions across multiple TTIs without interrupting for repeated LBT procedures. Once the channel is acquired through initial LBT, the system maintains continuous transmission activity for multiple TTIs, eliminating the stop-start pattern caused by repeated channel access attempts and reducing overall latency.

The patent combines multiple individual TTI transmissions into a single burst transmission governed by one LBT procedure. Multiple TTIs are grouped together and transmitted contiguously after a single channel access, merging what would otherwise be separate channel access events into one unified operation, thereby improving efficiency while preserving fairness.

The LBT procedure is performed preliminarily before a series of transmissions rather than repeatedly during them. This preliminary channel access establishes permission for multiple consecutive TTIs, reducing the frequency of LBT operations from every TTI to once per burst, thus enhancing system efficiency while maintaining fair coexistence through the initial sensing.

The patent performs the LBT procedure preliminarily before a burst of transmissions, establishing channel access permission for multiple TTIs in advance. This preliminary action eliminates the need for repeated LBT operations during the burst, reducing signaling overhead and procedural complexity while ensuring coexistence through the initial channel sensing.

The patent maintains continuous transmission activity across multiple TTIs without interrupting for repeated LBT procedures. Once channel access is obtained, transmissions proceed continuously through the burst, eliminating the overhead and complexity associated with repeated channel access attempts while preserving coexistence through the initial LBT.