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.
Patent No.:
Date of Patent:
Jan. 08, 2019
Filed:
Jun. 17, 2016
Hughes Network Systems, Llc, Germantown, MD (US);
Channasandra Ravishankar, Clarksburg, MD (US);
John Corrigan, Chevy Chase, MD (US);
Rajeev Gopal, North Potomac, MD (US);
Yash Vasavada, Gaithersburg, MD (US);
James Jehong Jong, North Potomac, MD (US);
Nassir Benammar, Rockville, MD (US);
Gaguk Zakaria, College Park, MD (US);
Anthony Noerpel, Lovettsville, VA (US);
Harish Ramchandran, Germantown, MD (US);
Xiaoling Huang, Boyds, MD (US);
Deepak Arur, Vienna, VA (US);
Hughes Network Systems, LLC, Germantown, MD (US);
Abstract
A satellite system comprises LEO satellites and MEO satellites, and a control plane protocol architecture. The PHY, MAC, MAC/RLC and RRC layers are optimized for satellite environment. When the satellites are not processing satellites, eNB functions are implemented in a satellite gateway, and, when the satellites are processing satellites, protocol architecture in the control plane differ from LTE, as follows: PHY layer is moved to the communicating LEO/MEO satellite on the user link, MAC/RLC, RRC and PDCP are be located in satellite or gateway depending on satellite complexity, and the need to have mesh connectivity between UTs. When the RRC is implemented in the satellite, the RRC is divided into RRC-Lower and RRC-Upper layers. The RRC-L is satellite-based, and handles UT handover. The RRC-U is eNB-based, and handles resource management functions. The RRC-U communicates with the PDCP layer in the eNB to configure security, header and data compression.