Patent SG-11201905934S-A (SG)
Title: Narrowband time-division duplex frame structure for narrowband communications
Inventor: SRIDHARAN ARVIND
IPC: H04L5/00
Filed: 2018-02-09
Abstract: determine a nammband TDD frame 59,0900 for nartowband communications from a group of narrowband TDD frame structures iv 904 r J 1 I . determine an SSS sequence and a I 1 pledetermineA distance between transmitting I a PSS and all SSS I I J 906 determine a periodicity, subframe number and transmission sequence associated with a SSS based at least in part on the narrowband TDD frame structure 908 I . transmit the PSS using dm narmwband TDD I ; frame structure determined for the narrowband communications W O 20 18/ 1520 26 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 23 August 2018 (23.08.2018) WIP0 I PCT mu °million °nolo HE liololiolom Inv oimiE (10) International Publication Number WO 2018/152026 Al (51) International Patent Classification: H04L 5/00 (2006.01) HO4L 5/14 (2006.01) (21) International Application Number: PCT/US2018/017627 (22) International Filing Date: 09 February 2018 (09.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201741005220 14 February 2017 (14.02.2017) IN 201741005360 15 February 2017 (15.02.2017) IN 15/707,003 18 September 2017 (18.09.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTEN: International IP Administration, 5775 Morehouse Drive, San Diego, California, US 92121-1714 (US). (72) Inventors: SRIDHARAN, Arvind; c/o QUALCOMM IN- CORPORATED, 5775 Morehouse Drive, San Diego, Cal- ifornia 92121-1714 (US). BHATTAD, Kapil; c/o QUAL- COMM INCORPORATED, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHANDRASEKAR, Manikandan; c/o QUALCOMM INCORPORATED, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). SOMICHETTY, Gowrisankar; c/o QUALCOMM IN- CORPORATED, 5775 Morehouse Drive, San Diego, Cali- fornia 92121-1714 (US). RICO ALVARINO, Alberto; c/ o QUALCOMM INCORPORATED, 5775 Morehouse Dri- ve, San Diego, California 92121-1714 (US). WANG, Xiao feng; c/o QUALCOMM INCORPORATED, 5775 More- house Drive, San Diego, California 92121-1714 (US). (74) Agent: HODGES, Jonas J. et al.; c/o ARENT FOX LLP, 1717 K Street NW, Washington, District of Columbia 20006-5344 (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: NARROWBAND TIME-DIVISION DUPLEX FRAME STRUCTURE FOR NARROWBAND COMMUNICATIONS (57) : There is a need to support narrowband TDD frame structure for nar- rowband communications. The present disclosure provides a solution by supporting —4 one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an ap- paratus are provided. The apparatus may determine a narrowband communication frame structure comprising a FDD mode or a TDD mode and a particular TDD frame structure for narrowband communications from a group of narrowband TDD frame structures. The apparatus may determine a periodicity, subframe number, and trans- mission sequence associated with a SSS based at least in part on the narrowband TDD frame structure. The apparatus may transmit the SSS using the narrowband TDD frame structure determined for the narrowband communications. In one aspect, the SSS may be transmitted in a same subframe within a frame and at a periodicity of 2 or more frames. 910 transmit the SSS using lito nerrowband TDD frame structure in a same subframe within a frame and at a periodicity oft or more frames FIG. 9 [Continued on next page] 900 WO 2018/152026 Al IMEDIMOMMIDIREEMOMOMOMEEHERMOVOIMIE 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). 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))