Patent SG-11201906549S-A (SG)
Title: Narrowband time-division duplex frame structure for narrowband communications
Inventor: BHATTAD KAPIL
IPC: H04L5/00
Filed: 2018-02-22
Abstract: 350 352 310 • —. 44 320 375 Reference Signal 316 TX Processor Control/Data 318 354 356 RX Processor Controller /Processor 376 Channel Estimator Controller/ Processor 320 352 4 360 RX Processor TX Processor Contro / Data O 00 O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 07 September 2018 (07.09.2018) WIPO I PCT oimiolo VIII °nolo VIII ioo im mil nu° oimIE (10) International Publication Number WO 2018/160432 Al (51) International Patent Classification: HO4W 72/04 (2009.01) H04L 5/14 (2006.01) HO4L 5/00 (2006.01) (21) International Application Number: PCT/US2018/019221 (22) International Filing Date: 22 February 2018 (22.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201741007075 28 February 2017 (28.02.2017) IN 15/710,742 20 September 2017 (20.09.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTEN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: BHATTAD, Kapil; c/o QUALCOMM IN- CORPORATED, 5775 Morehouse Drive, San Diego, Cal- ifornia 92121-1714 (US). WANG, Xiao feng; c/o QUAL- COMM 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). XU, Hao; c/o QUALCOMM INCORPORATED, 5775 Morehouse 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, (54) Title: NARROWBAND TIME-DIVISION DUPLEX FRAME STRUCTURE FOR NARROWBAND COMMUNICATIONS Reference Signal FIG. 3 (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. In one aspect, the apparatus may receive information associated with a narrowband TDD frame structure for narrowband communications, the narrowband TDD frame structure including a set of contiguous uplink subframes. The apparatus may also determine an orthogonal sequence length associated with a reference signal (RS) based on at least one of a number of uplink subframes or a number of slots in the set of contiguous uplink subframes. In addition, the apparatus may transmit the RS using the determined orthogonal sequence length. [Continued on next page] WO 2018/160432 Al MIDEDIMOMOIDEIREEMOMMINNIEMOIREM 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(ii)) 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)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))