Patent SG-11201908866Q-A (SG)
Title: Channel state information-reference signal, csi-rs, acquisition
Inventor: NAGARAJA SUMEETH
IPC: H04W36/00
Filed: 2018-05-04
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT omit VIII °nolo III tom mo !mom° oimIE (10) International Publication Number WO 2018/204846 Al (51) International Patent Classification: H04W 36/00 (2009.01) (21) International Application Number: PCT/US2018/031186 (22) International Filing Date: 04 May 2018 (04.05.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/502,353 05 May 2017 (05.05.2017) US 15/970,816 03 May 2018 (03.05.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: NAGARAJA, Sumeeth; 5775 Morehouse Dri- ve, San Diego, California 92121-1714 (US). LUO, Tao; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). AKKARAKARAN, Sony; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). MANOLAKOS, Alexandros; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: BURBACH, Stephen; 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, (54) Title: CHANNEL STATE INFORMATION-REFERENCE SIGNAL, CSI-RS, ACQUISITION 200 r 204 202- \ 216 g? D Nt§ -5-\°. -- 220 Ak- C (1\s‘ 922 \-37 1-9 GS~RS SERVING CELL (E.G., gNB) x 210 DETERMINE CSI-RS CONFIGURATION (E.G., BASED ON TIMING DIFFERENCE) FIRST DEVICE (E.G., UE) _ L e - 208 OPTIONALLY MEASURE TIMING 1 DIFFERENCE BETWEEN CELLS I I BASED ON NR-SS ANDREPORT TO SERVING CELL TIMING 224 INFORMATION r 212 r 206 NEIGHBOR CELL (E.G., gNB) r 214 TRANSMIT CSI-RS DECODE CSI-RS OF NEIGHBOR CELL BASED ON CSI-RS CONFIGURATION Cs , — 226 FIG. 2 (57) : Various aspects of the disclosure relate to techniques associated with the acquisition of reference signals. In some aspects, a network may request a user equipment (UE) to measure a timing difference between neighbor cells and use that information to generate a CSI-RS configuration. The network sends the CSI-RS configuration to the UE to enable the UE to acquire a CSI-RS from a neighbor cell. In some aspects, a network may send timing-related information to a neighbor cell and the neighbor cell uses that information to transmit a CSI-RS. [Continued on next page] WO 2018/204846 Al MIDEDIMOMOIDEIRDERI0010101111EMOHRODEVOIMIE 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))