Patent SG-11201907651U-A (SG)
Title: Dynamic satellite beam assignment
Inventor: BECKER DONALD
IPC: H04B7/19
Filed: 2018-03-01
Abstract: W O 20 18/ 1608 42 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 07 September 2018 (07.09.2018) WIPO I PCT omit IIl °nolo Oil 100 En oimIE (10) International Publication Number WO 2018/160842 Al (51) International Patent Classification: HO4B 7/185 (2006.01) H04B 7/204 (2006.01) HO4B 7/19 (2006.01) (21) International Application Number: PCT/US2018/020461 (22) International Filing Date: 01 March 2018 (01.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/465,987 02 March 2017 (02.03.2017) US (71) Applicant: VIASAT, INC. [US/US]; VIASAT, INC., PATENT DEPARTMENT, 6155 EL CAMINO REAL, CARLSBAD, California 92009 (US). (72) Inventors: BECKER, Donald; VIASAT, INC., C/O PATENT DEPARTMENT, 6155 EL CAMINO REAL, CARLSBAD, California 92009 (US). PETRANOVICH, James; VIASAT, INC., C/O PATENT DEPARTMENT, 6155 EL CAMINO REAL, CARLSBAD, California 92009 (US). MARTIN, Remberto; VIASAT, INC., C/ 0 PATENT DEPARTMENT, 6155 EL CAMINO REAL, CARLSBAD, California 92009 (US). (74) Agent: RALSTON, William et al.; VIASAT, INC., PATENT DEPARTMENT, 6155 EL CAMINO REAL, CARLSBAD, California 92009 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: DYNAMIC SATELLITE BEAM ASSIGNMENT (57) : Embodiments provide techniques for dynamic spot beam assignment in a geostationary satellite communications network. For example, a ground processing node in the geostationary satellite network can monitor spot beam coverage area loca- tion and can detect a beam drift trigger indicating present drifting of one or more cover- age areas. Ground terminals can be identified as serviced by spot beams associated with the drifting coverage area(s) and as experiencing a signal quality impact from the drift- ing. The ground terminal node can compute an update to a beam assignment map hav- ing a reassignment of the identified user terminals from their presently servicing spot beams to another of the spot beams in a manner that seeks to address at least some of the signal quality impact identified as associated with the drifting. Some embodiments further account for load balancing, and/or other factors, and/or can maintain stateful communications between the reassigned user terminals and the geostationary satellite. FIG. 1 [Continued on next page] WO 2018/160842 Al D ill Published: — with international search report (Art. 21(3))