Method and apparatus for satellite communication with baseband switching over an IP network

摘要

A rain diversity switchover system includes a diversity Satellite Access Station (SAS) including a transmitter modem and a receiver modem in communication with a satellite. The system further includes a primary SAS including a transmitter modem and a receiver modem in communication with the satellite via a second satellite antenna, where the transmitter and receiver modems of the primary SAS are synchronized with the transmitter and receiver modems of the diversity SAS via a common time source. Further, a hub data processor adjusts a timing of transmissions from the diversity SAS to the satellite relative to the common time source in accordance with a difference between a time of flight from the diversity SAS to the satellite and a time of flight from the primary SAS to the satellite. Additionally, a switchover controller controls a rain diversity switchover between the primary SAS and the diversity SAS.

主权项

1. A rain diversity switchover system comprising:
a diversity Satellite Access Station (SAS) including a transmitter modem and a receiver modem in communication with a satellite via a first satellite antenna; a primary SAS including a transmitter modem and a receiver modem in communication with the satellite via a second satellite antenna, the transmitter and receiver modems of the primary SAS synchronized with the transmitter and receiver modems of the diversity SAS via a common time source; a terrestrial digital network connecting the primary SAS to the diversity SAS; a hub data processor that adjusts a timing of transmissions from the diversity SAS to the satellite relative to the common time source in accordance with a difference between a time of flight from the diversity SAS to the satellite and a time of flight from the primary SAS to the satellite; and a switchover controller that controls, using the terrestrial digital network, a rain diversity switchover between the primary SAS and the diversity SAS, wherein the switchover controller receives a signal from the diversity SAS indicating that the diversity SAS is ready to handle the rain diversity switchover.