公开(公告)号：US20250125905A1

公开(公告)日：2025-04-17

申请号：US19000441

申请日：2024-12-23

Applicant: Space Exploration Technologies Corp.

Inventor： Jeffrey A. Gardner ,  Yashodhan Dandekar ,  Ramakrishna Akella ,  Khasim Shaheed Shaik Mahammad

IPC: H04L1/00 ,  H04W28/06 ,  H04W80/02 ,  H04W84/06

Abstract: Systems, methods, and techniques are provided for a radio link control (RLC) sublayer. An example satellite or user terminal can include a divisional of layer 2 of the OSI protocol layer structure. An example method includes providing a RLC sublayer on top of a MAC sublayer and adaptively switching, via the RLC sublayer and based on external data, between an unacknowledged mode and an acknowledged mode for the electronic communications. If the RLC sublayer is operating in the unacknowledged mode, the RLC sublayer provides one or more of (1) fragmentation and reassembly of service data units; (2) a use of RLC headers; and/or (3) no delivery guarantees. If the RLC sublayer is operating in the acknowledged mode, the RLC sublayer provides reliability in a sequence delivery service and one or more of (1) fragmentation and reassembly of service data units; and/or (2) the use of RLC headers.

公开(公告)号：US12177009B1

公开(公告)日：2024-12-24

申请号：US17339807

申请日：2021-06-04

Applicant: Space Exploration Technologies Corp.

Inventor： Jeffrey A. Gardner ,  Yashodhan Dandekar ,  Ramakrishna Akella ,  Khasim Shaheed Shaik Mahammad

IPC: H04W28/06 ,  H04L1/00 ,  H04W80/02 ,  H04W84/06

Abstract: Systems, methods, and techniques are provided for a radio link control (RLC) sublayer. An example satellite or user terminal can include a divisional of layer 2 of the OSI protocol layer structure. An example method includes providing a RLC sublayer on top of a MAC sublayer and adaptively switching, via the RLC sublayer and based on external data, between an unacknowledged mode and an acknowledged mode for the electronic communications. If the RLC sublayer is operating in the unacknowledged mode, the RLC sublayer provides one or more of (1) fragmentation and reassembly of service data units; (2) a use of RLC headers; and/or (3) no delivery guarantees. If the RLC sublayer is operating in the acknowledged mode, the RLC sublayer provides reliability in a sequence delivery service and one or more of (1) fragmentation and reassembly of service data units; and/or (2) the use of RLC headers.