SG11201807368PA - Dynamic sounding reference signal scheduling - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD HIM 0 11101 HOE 010 1111 1 0 I 010 111E1111111111 1111111E1111 1111# Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2017/176405 A3 12 October 2017 (12.10.2017) WIPO I PCT (51) International Patent Classification: ye, San Diego, CA 92121-1714 (US). CEZANNE, Juer- H04L 5/00 (2006.01) gen; 5775 Morehouse Drive, San Diego, CA 92121-1714 (21) International Application Number: (US). SADIQ, Bilal; 5775 Morehouse Drive, San Diego, PCT/US2017/020952 CA 92121-1714 (US). LI, Junyi; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). (22) International Filing Date: (74) Agent: KARREN, J., Scott et al.; Holland & Hart LLP, 06 March 2017 (06.03.2017) P.O. Box 11583, Salt Lake City, UT 84147 (US). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every (26) Publication Language: English 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, 62/318,190 04 April2016 (04.04.2016) US 2016 (21.04.2016) 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, 62/325,948 21 April 62/337,329 16 May 2016 (16.05.2016) US HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, 62/351,285 16 June 2016 (16.06.2016) US KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, 62/353,493 22 June 2016 (22.06.2016) US MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, 15/357,791 21 November 2016 (21.11.2016) US 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, (71) Applicant: QUALCOMM INCORPORATED [US/US]; TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. ATTN: International IP Administration, 5775 Morehouse _ (84) Designated States (unless otherwise indicated, for every Drive, San Diego, CA 92121-1714 (US). kind of regional protection available): ARIPO (BW, GH, = = (72) Inventors: ISLAM, Muhammad, Nazmul; 5775 More- GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, house Drive, San Diego, CA 92121-1714 (US). SUBRA- UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, = MANIAN, Sundar; 5775 Morehouse Drive, San Diego, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, _ CA 92121-1714 (US). LUO, Tao; 5775 Morehouse Dri- EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (54) Title: = = = 1 - 205-, DYNAMIC SOUNDING REFERENCE SIGNAL SCHEDULING r 205-b (57) : Methods, systems, and devices for wireless communica- tion are described. A base station may identify a sounding reference sig- nal (SRS) configuration for user equipment (UE). The base station may = RRC RRC transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant mes- - = = . 210, : . 210 b • sage, and may include the SRS parameters or a location of the SRS para- meters. That is, SRS parameters may be transmitted in a control channel = RLC MAC RCCAL1C with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS pa- = =• . 215 d • 22.,, ,, 21 -b 5 . a rameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base its station may make own environment measurements or assign SRS para- = — P111 I I PllY meters autonomously. The UE may signal SRS transmissions to the base — > = - M .4 ir) 0 1 1' ,tD N Ir ---- Il © ei V I ! „ 5 IT P 225 HG. 2 4 `„5_a k '\"--- 200 station according to the SRS grant message. C [Continued on next page] WO 2017/176405 A3 MIDEDIM0110111111111111111111111111111111111111 11111 IIIIIIIIII 110 MI MI IIIIIIII 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). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) — 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)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (88) Date of publication of the international search report: 21 December 2017 (21.12.2017)