Patent SG-11201906284X-A (SG)
Title: Feedback-based retransmission using mixed-duration transmission time intervals
Inventor: SUN JING
IPC: H04L1/18
Filed: 2018-02-15
Abstract: WO 18/ 15 2305 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 0111111010 0111 °nolo HE mom oimIE (10) International Publication Number WO 2018/152305 Al 410 425 TTI 2 71 TTI (Slot TTI) TTII A_ 435 • • (51) International Patent Classification: HO4L 1/18 (2006.01) (21) International Application Number: PCT/US2018/018334 (22) International Filing Date: 15 February 2018 (15.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/460,731 17 February 2017 (17.02.2017) US 15/710,698 20 September 2017 (20.09.2017) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: SUN, Jing; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). HOSSEINI, Seyedkianoush; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). JIANG, Jing; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: ANDERSON, Thomas D.; Holland & Hart LLP, P.O. Box 11583, Salt Lake City, Utah 84147 (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, 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). (54) Title: FEEDBACK-BASED RETRANSMISSION USING MIXED-DURATION TRANSMISSION TIME INTERVALS (57) : Techniques are described that provide for generation of a first transport block (TB) that includes a number of code blocks (CBs) that are trans- mitted to a receiver during a first transmission time interval (TTI) having a first duration, and retransmission of any unsuccessfully received CBs in a second 415 430 TTI having a duration that is selected from multiple available TTI durations. The second TTI may have a second TTI duration that is shorter than the first CBI CBI CB5 CB6 CB7 CBS I TTI duration, and may have CBs only from the first TB. One or more of a time duration or frequency resources of the second TTI may be selected based on the number of CBs that are retransmitted in the second TTI. 405 Received CDs Missing CBs Retransmitted CBs ACK/NACK Feedback 400 FIG. 4 [Continued on next page] WO 2018/152305 Al MIDEDIMOHNOREEMOMMEIllifinn 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))