The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 16, 2018

Filed:

Aug. 28, 2017
Applicant:

Hughes Network Systems, Llc, Germantown, MD (US);

Inventors:

Nassir Benammar, Rockville, MD (US);

Deepak Arur, McLean, VA (US);

Channasandra Ravishankar, Clarksburg, MD (US);

Yash Vasavada, Gandhinagar, IN;

Assignee:

Hughes Network Systems, LLC, Germantown, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 36/30 (2009.01); H04B 7/185 (2006.01); H04W 36/14 (2009.01); H04W 36/16 (2009.01); H04W 36/10 (2009.01); H04W 84/06 (2009.01); H04W 36/00 (2009.01);
U.S. Cl.
CPC ...
H04W 36/30 (2013.01); H04B 7/18517 (2013.01); H04W 36/14 (2013.01); H04W 36/165 (2013.01); H04W 36/0083 (2013.01); H04W 36/10 (2013.01); H04W 84/06 (2013.01);
Abstract

A method for satellite to satellite handover of a user terminal in a satellite communications network is provided. The UT receives an initial handover message, from a RAN node, including a target frequency for receiving downlink transmissions from the RAN node via a target satellite and a timing correction, and reconfigures its receiver for receipt of the downlink transmissions via the target frequency. The UT decodes the downlink transmissions to determine allocations for a PRACH of the target satellite provided by the downlink transmissions, and transmits a reply handover message to the RAN node, via the PRACH channel, using the timing correction. The UT receives a flow assignment message from the RAN. The UT reactivates hand-over data flows for the target satellite, and transmits a channel configuration complete message to the RAN node, via the PRACH channel, using the timing correction.


Find Patent Forward Citations

Loading…