Patent SG-11201900101P-A (SG)
Title: Rach conveyance of dl synchronization beam information for various dl-ul correspondence states
Inventor: ISLAM MUHAMMAD NAZMUL
IPC: H04L5/00
Filed: 2017-08-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD HIM 0 11101 HOE 3E1 0 0111E011 OHO IMI 110 11110 ill 011 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\"\"1 WO 2018/031849 Al 15 February 2018 (15.02.2018) WIP0 I PCT (51) International Patent Classification: house Drive, San Diego, California 92121-1714 (US). H04B 7/06 (2006.01) HO4L 5/00 (2006.01) ABEDINI, Navid; 5775 Morehouse Drive, San Diego, Cal- (21) International Application Number: ifornia 92121-1714 (US). SADIQ, Bilal; 5775 Morehouse PCT/US2017/046422 Drive, San Diego, California 92121-1714 (US). (22) International Filing Date: (74) Agent: ANDERSON, Thomas, D.; Holland & Hart LLP, 11 August 2017 (11.08.2017) P.O. Box 11583, Salt Lake City, Utah 84147 (US). (25) Filing Language: English (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (26) Publication Language: English AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (30) Priority Data: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 62/374,735 12 August 2016 (12.08.2016) US DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 62/379,209 24 August 2016 (24.08.2016) US HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, 62/406,377 10 October 2016 (10.10.2016) US KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 62/407,423 12 October 2016 (12.10.2016) US MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 62/418,072 04 November 2016 (04.11.2016) US OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 15/674,214 10 August 2017 (10.08.2017) US 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. (71) Applicant: QUALCOMM INCORPORATED [US/US]; (84) Designated States (unless otherwise indicated, for every ATTN: International IP Administration, 5775 Morehouse kind of regional protection available): ARIPO (BW, GH, Drive, San Diego, California 92121-1714 (US). GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, Inventors: ISLAM, Muhammad Nazmul; 5775 More- UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, = (72) house Drive, San Diego, California 92121-1714 (US). TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, SUBRAMANIAN, Sundar; 5775 Morehouse Drive, San EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Diego, California 92121-1714 (US). LI, Junyi; 5775 More- MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, = Title: RACH CONVEYANCE OF DL SYNCHRONIZATION BEAM INFORMATION FOR VARIOUS DL-UL CORRESPON- (54) STATES DENCE 0 115-a (57) : Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a downlink (DL) signal from a base station on one or more DL beam(s). The UE may identify of a nature D:( meapm de Indi soon IR 1 of correspondence between one or more receive beams at the UE and one or more transmit beams at the UE. The UE may identify a selected DL beam of the one or more DL beam(s) for communications from the base station to the UE. The UE may transmit a random access channel (RACH) message to the base station using a resource and/or a RACH waveform selected based on the selected DL beam based at least in part on the selected DL beam and the nature of correspondence. DL Sc ya Si a] 5 210 215 Identify DLBeam 220 Select Revouece end/or RA.CHMessaee 11 230 IdentifyS ledge DL C:r He m 7r GC 11 en (DT Ream) 335 © \... 11 20 0 © ei I 1(,. 2 C [Continued on next page] WO 2018/031849 Al MIDEDIMOMMIDIREIHNIMIOMMENIODEVOIMIE 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))