A SYSTEM AND METHOD FOR MODE REPRESENTATION AND SYNCHRONIZATION IN NON-TERRELSIAN NETWORKS USING PSEUDO-RANDOM BIT PATTERN SIGNALING.

Abstract

The invention is particularly useful for satellites supporting store-and-forward (S&F) and real-time modes. mode representation in non-terrestrial networks for communication systems and It provides a method and system (100) for synchronization. A satellite node (110), a high-layer broadcast unit (130) and mode-specific pseudo-random bit pattern It contains a PRBP transmitter (140) that periodically transmits 10 (PRBP) sequences. User The equipment (120) is configured to associate the received sequences with the stored references. A PRBP receiver (150) estimates the clock shift from the correlation peaks. PRBP includes a local timing unit (160) for scheduling and correcting, a buffer management unit (170) for managing uplink traffic during S&F operation, and a NAS procedure handler (180) for executing mode-dependent signaling. PRBP functions simultaneously as a persistent mode indicator and embedded synchronization reference, ensuring continuous mode awareness even if high-layer broadcasts are missed. The invention provides robust, low-complexity synchronization and reliable mode representation that overcomes the limitations of SIB signaling, feedline status reporting, and ephemeris-based updates, and is compliant with ongoing 3GPP NTN standardization.