Patent SG-11201906236X-A (SG)
Title: Narrowband time-division duplex frame structure for narrowband communications
Inventor: SRIDHARAN ARVIND
IPC: H04L5/14
Filed: 2018-02-09
Abstract: WO 18/ 1520 29 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 onion °nolo HE liololiolom io Elio ow (10) International Publication Number WO 2018/152029 Al (51) International Patent Classification: H04L 5/00 (2006.01) HO4L 5/14 (2006.01) (21) International Application Number: PCT/US2018/017636 (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 15/707,789 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, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, (54) Title: NARROWBAND TIME-DIVISION DUPLEX FRAME STRUCTURE FOR NARROWBAND COMMUNICATIONS (57) : There is a need to support narrowband TDD frame structure for narrowband 2500 communications. The present disclosure provides a solution by supporting one or more nar- rowband TDD frame structure(s) for narrowband communications. In an aspect of the disclo- sure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure for narrowband communications from a 2502 group of narrowband TDD frame structures. In one aspect, the narrowband TDD frame struc- ture may include a set of downlink subframes and more than one special subframe. The appa- ratus may determine a set of narrowband carriers and a minimum set of subframes on the set of narrowband carriers based at least in part on the set of downlink subframes and more than one 2504 special subframe on which a NRS should be transmitted. The apparatus may transmit the NRS using the narrowband TDD frame structure determined for the narrowband communications. 2506 I transmit information indicating additional I subframes used to transmit dae NRS 2508 transmit the NRS using the narrowband I DD frame structure determined for the narrowband communicators FIG. 25 [Continued on next page] determine a narrowband IDD frame =venire for narrowband communications from a group of narrowband TDD frame structures determine a set of narrowband carriers and a minimum se of subframos on tho set of narrowband carriers based at Irma in part on the set of downlink subframes and more than one special subframe on which a NRS should be transmitted WO 2018/152029 Al IMEDIMOMMIONE101311101011010MODEVOIMIE 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 4.1 7(iii)) Published: — with international search report (Art. 21(3))