Patent SG-11201809489W-A (SG)
Title: Low earth orbit satellite constellation system for communications with re-use of geostationary satellite spectrum
Inventor: OLSON ERLEND
IPC: H04W84/06
Filed: 2017-05-03
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0111010101111101011111 0 1110111110111101111110111111101111 Oil lil Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\" WO 2017/192727 Al 09 November 2017 (09.11.2017) WI P0 I P C T (51) International Patent Classification: (71) Applicant: THEIA GROUP, INCORPORATED H04W 84/06 (2009.01) H04B 7/185 (2006.01) [US/US]; 1600 Market Street, Suite 1320, Philadelphia, PA H04B 7/14 (2006.01) B64G 1/10 (2006.01) 19103 (US). H04B 7/19 (2006.01) (72) Inventor: OLSON, Erlend; P.O. Box 10939, Newport (21) International Application Number: Beach, CA 92658 (US). PCT/US2017/030847 (74) Agent: BONINI, Frank, J. et al.; Harding, Earley, Follmer (22) International Filing Date: & Frailey, P.C., 86 The Commons At Valley Forge East, 03 May 2017 (03.05.2017) 1288 Valley Forge, P.O. Box 750, Valley Forge, PA 19482-0750 (US). (25) Filing Language: English (26) Publication Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (30) Priority Data: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 62/331,245 03 May 2016 (03.05.2016) US 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, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, (54) Title: LOW EARTH ORBIT SATELLITE CONSTELLATION SYSTEM FOR COMMUNICATIONS WITH RE-USE OF SATELLITE SPECTRUM GEOSTATIONARY North P 1 NE : Boresight vectors of directional I . 1 \".--- antennas at P INE through P 8NE . ..... ..... • .,.,,,_ pointing to Geostationary R E = 6371 km ..... Quadrant 4 :•• ....., .....--- .... . - :.: ............. ...... .... satellite(s) ........ , P8NE r G = 6371 -I- 38,400 = 42,157 km 4% 11 LEO 2 Beam) S'' Geostationary Quadrant 3 • Quadrant 2 • Satellite .41:..___,-- LE02 Direction of travel OP South LE01 LEO 1 beam FIG.2 ,-, IN (57) : A system for re-using GEO-allocated communications spectrum in a LEO satellite constellation based communications system ' such that the LEO satellite originated signals will not appear in the beam-width of GEO-pointed earth station antennas, and IN N satellites configured to provide communications by manipulating their respective beam transmissions, which may include a forward 01 beam and rearward beam whose angles are controlled to project the beam and reduce or eliminate the potential for interference with --... 7 1 GEO-pointed earth station antennas. The system and LEO satellites may provide substantially 100% coverage of an earth station located IN anywhere on the surface of the earth, without coordination with the GEO satellites or GEO-pointing ground stations. The system 1-1 C also may provide earth stations that are configured to enhance the isolation between the GEO communications system and the LEO ei C [Continued on next page] WO 2017/192727 Al MIDEDIMOMOIDEIROIDEMOMME1010111111111111111111111111111111111 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). Published: — with international search report (Art. 21(3)) communications system using the same spectrum to reduce the potential for GEO-pointed earth station antennas from picking up the LEO communication.