Patent SG-11201901252Q-A (SG)
Title: Dynamic time division duplexing
Inventor: HOSSEINI SEYEDKIANOUSH
IPC: H04L5/00
Filed: 2017-09-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property :::` , Organization 03 1#11101111011101010111110111110101011111111111H0111111111111111111111111111111111 International Bureau (10) International Publication Number (43) International Publication Date .....•\"\" WO 2018/057434 Al 29 March 2018 (29.03.2018) WI P0 I P C T (51) International Patent Classification: (74) Agent: TONKINSON, Michael, S.; Holland & Hart LLP, H04L 5/00 (2006.01) P.O. Box 11583, Salt Lake City, Utah 84147 (US). (21) International Application Number: (81) Designated States (unless otherwise indicated, for every PCT/US2017/051904 kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 15 September 2017 (15.09.2017) 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, (25) Filing Language: English HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (26) Publication Language: English 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, (30) Priority Data: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 62/400,049 26 September 2016 (26.09.2016) US SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 15/704,733 14 September 2017 (14.09.2017) US TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: QUALCOMM INCORPORATED [US/US]; (84) Designated States (unless otherwise indicated, for every Attn: International IP Administration, 5775 Morehouse Dri- kind of regional protection available): ARIPO (BW, GH, ye, San Diego, California 92121-1714 (US). GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (72) Inventors: HOSSEINI, Seyedkianoush; 5775 Morehouse TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, Drive, San Diego, California 92121-1714 (US). CHEN, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Wanshi; 5775 Morehouse Drive, San Diego, California MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 92121-1714 (US). GAAL, Peter; 5775 MorehouseDrive, — TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, = San Diego, California 92121-1714 (US). SUN, Jing; 5775 KM, ML, MR, NE, SN, TD, TG). Morehouse Drive, San Diego, California 92121-1714 (US). = PATEL, Shimman Arvind; 5775 Morehouse Drive, San — Published: Diego, California 92121-1714 (US). — with international search report (Art. 21(3)) = (54) Title: DYNAMIC TIME DIVISION DUPLEXING = = (57) : Methods, systems, and devices for wireless communication are de- 310 315 320 — scribed. A base station may allocate resources for communication with a user equip- = = D S f s c 1 S 6 e ment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) = - -_ pattern. Based on traffic needs and/or interference from other UEs and/or base sta- - , ,, , 3 \.., si010 si011 tions, the base station may determine to modify the TDD pattern used for communi- H ., 330 cation. Accordingly, a base station may transmit an indicator in a control message or = / = /•., = / = . . control region of a TTI or sTTI, to indicate to users that a transmission direction of an . sTTI in the TDD pattern is being changed. Subsequently, a user may communicate . , the base station according to the TDD -, = r Lem with reconfigured pattern. DL Slut 335 L em 1 I . 0 - I 11 Pi T ow T.alon DL Slot cy 345 7r Symbol Index 0 1 2 3 4 5 6 M 7r 350 Ir PDCCH Itin .. CRS (:::) '6° iiii DL 365 X I 370 '..D UL Il ' M Good Period © el FIG. 3 300 C