Patent SG-11201901255Y-A (SG)
Title: Signature sequence for system identification in a shared spectrum
Inventor: SUN JING
IPC: H04W74/08
Filed: 2017-09-25
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 05 April 2018 (05.04.2018) WIP0 I PCT olimion °nolo III oiloo VIII imio oimIE (10) International Publication Number WO 2018/064000 Al (51) International Patent Classification: H04W 74/08 (2009.01) H04V1 7 16/14 (2009.01) (21) International Application Number: PCT/US2017/053321 (22) International Filing Date: 25 September 2017 (25.09.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/401,783 29 September 2016 (29.09.2016) US 15/642,384 06 July 2017 (06.07.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: SUN, Jing; 5775 Morehouse Drvie, San Diego, California 92121-1714 (US). YOO, Taesang; 5775 More- house Drive, San Diego, California 92121-1714 (US). ZHANG, Xiaoxia; 5775 Morehouse Drive, San Diego, Cal- ifornia 92121-1714 (US). BARGHI, Sanaz; 5775 More- house Drive, San Diego, California 92121-1714 (US). MONTOJO, Juan; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: BURGESS, Jeffrey; Loza & Loza, LLP, 305 North Second Avenue, #127, Upland, California 91786 (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: SIGNATURE SEQUENCE FOR SYSTEM IDENTIFICATION IN A SHARED SPECTRUM (57) : Aspects of the disclosure relate to wireless communication systems 600 configured to share a shared spectrum with one or more other systems (e.g., other operator networks utilizing the same radio access technology, and/or other networks 602 utilizing different radio access technologies). Coexistence between the different sys- tems on the shared spectrum may be provided by utilizing a technology-neutral sig- nature waveform such as a signature sequence. A device or system may monitor a 60 shared spectrum channel for the signature waveform, and when detected, may de- termine whether the shared spectrum is available for that system, or busy as occu- 610-, pied by another system. When the shared spectrum channel is idle, the device or system may reserve the channel by transmitting the signature waveform. Other as- pects, embodiments, and features are also claimed and described. Dc ann. cmss-cor.latioubc,,, det cted signature sequence and wn sip,notwc sequence Damn. abet. detected sign.. sequence In al= sig..= sequel= 612-, W O 20 18/06 4000 Al taa lakaaaiaial 624 C13., mode to use otber cyst°. 614 -. urihzo shored spcaro tcebnolo, spccYio fon. END 6 FIG. 6 [Continued on next page] WO 2018/064000 Al MIDEDIMOMMIONE10111101100MONEHIMMIS Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(11)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))