Patent ID: 11962391
Assignee: HORIZON TECHNOLOGIES CONSULTANTS, LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A system in a an aerial vehicle for intercepting satellite telephone radio frequency (RF) signals being transmitted from ground to a communications satellite, the system comprising:
a first antenna on the configured to receive in the first frequency band an uplink from a mobile device being transmitted to a communications satellite,
and
a signal processing unit in the cube satellite, comprising:
an analog to digital converter configured to sample RF signals;
a first memory configured to store instructions, and a first processor configured to read instructions from the first memory and to implement a method for processing the uplink RF data, the instructions comprising:

code for determining, from the sampled RF signals, RF information including frequency and timing information from a satellite spot beam;
code for downsampling an uplink according to the RF information, to reduce a bandwidth of the uplink;
code for compressing the call data stream by removing downsampled data corresponding to inactive frequencies and inactive timeslots of the downsampled uplink based on the determined frequency and timing information; and
code for generating a call data packet stream based on the compressed call data stream, wherein the call data packet stream is representative of a satellite telephone call including an uplink from a satellite telephone handset to a satellite;
a third antenna configured to transmit in a second frequency band the call data packet stream, wherein the transmission is ultimately destined for a ground station.