US 12,470,341 B2
VSAT demodulator architecture for beam hopping satellite systems
Seokho Kim, North Potomac, MD (US); Sri Bhat, Boyds, MD (US); and Brandon Lasher, Thurmont, MD (US)
Assigned to Hughes Network Systems, LLC, Germantown, MD (US)
Filed by Hughes Network Systems, LLC, Germantown, MD (US)
Filed on Dec. 12, 2022, as Appl. No. 18/064,370.
Prior Publication US 2024/0195556 A1, Jun. 13, 2024
Int. Cl. H04L 5/00 (2006.01); H04W 36/06 (2009.01); H04W 72/044 (2023.01); H04W 72/0446 (2023.01)
CPC H04L 5/0048 (2013.01) [H04W 36/06 (2013.01); H04W 72/0446 (2013.01); H04W 72/046 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method for demodulating burst communications in a demodulator of a receiver, the method comprising:
first receiving a first radiofrequency (RF) burst transmission by the demodulator in a first dwell time;
recovering, during the first receiving, a data stream from the first RF burst transmission with a demodulator front-end of the demodulator set to a first mode in which the demodulator front-end uses feedback control to continuously adapt to timing and frequency of the first RF burst transmission;
determining, during the first receiving, an end of superframe (EOSF) location indicating a location of an end of the first dwell time;
first setting the demodulator front-end to a second mode according to the EOSF location, the second mode freezing the continuous adaptation of the demodulator front-end;
holding the demodulator front-end in the second mode over a non-dwell time following the end of the first dwell time;
detecting, during the holding, a start of superframe (SOSF) location indicating a location of a start of a second RF burst transmission; and
second setting the demodulator front-end back to the first mode responsive to the detecting.