Patent SG-11201906240R-A (SG)
Title: Narrowband time-division duplex frame structure for narrowband communications
Inventor: SOMICHETTY GOWRISANKAR
IPC: H04L5/14
Filed: 2018-02-09
Abstract: determinehow to transmit the NPDCCH and/or NPDSCH and allocate resources in one or more downlink subframe and/or special subframes NPDCCH and/or NPDSCH transmitted in DL subframe 507 NPDCCH and/or NPDSCH transmitted in special subframe 509 NPDCCH and/or NPDSCH repetitions 511 determine to transmit an NPDCCH and/or NPDSCH in a subframe in a narrowband TDD frame structure 501 determine whether a subframe allocated for an NPDCCH and/or NPDSCH is a special subframe or a downlink subframe when the determined narrowband TDD frame structure includes one or more special subframes 503 O 00 O O (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) WI PO I PCT ill IIIIIl °million °nolo HE oimIE (10) International Publication Number WO 2018/152025 Al (51) International Patent Classification: HO4L 5/14 (2006.01) (21) International Application Number: PCT/US2018/017626 (22) International Filing Date: 09 February 2018 (09.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201741005360 15 February 2017 (15.02.2017) IN 15/724,164 03 October 2017 (03.10.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: SOMICHETTY, Gowrisankar; c/o QUAL- COMM Incorporated, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). BHATTAD, Kapil; c/o QUALCOMM Incorporated, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). RICO ALVARINO, Alberto; c/o QUALCOMM Incorporated, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). WANG, Xiao feng; c/o QUALCOMM Incorporated, 5775 More- house Drive, San Diego, California 92121-1714 (US). CHANDRASEKAR, Manikandan; c/o QUALCOMM In- corporated, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: HODGES, Jonas J. et al.; ARENT FOX LLP, 1717 K Street N.W., Washington, District of Columbia 20006-5344 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (54) Title: NARROWBAND TIME-DIVISION DUPLEX FRAME STRUCTURE FOR NARROWBAND COMMUNICATIONS 500 504 0 0 \" 506 I FIG. 5 (57) : There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting 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 apparatus are provided. The apparatus may determine to transmit a narrowband physical downlink channel in a subframe in a narrowband TDD frame structure of a plurality of narrowband TDD frame structures for narrowband communications. In addition, the apparatus may determine whether the subframe is a special subframe or a downlink subframe when the narrowband TDD frame structure includes one or more special subframes. Further, the apparatus may determine how to transmit a narrowband physical downlink channel based on the determination whether the subframe is a special subframe or a downlink subframe. Additionally, the apparatus may transmit the narrowband physical downlink channel. [Continued on next page] WO 2018/152025 Al MIDEDIMOMMIONER1311101011010MMEMOIS 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, 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))