SOUNDING REFERENCE SIGNAL CONFIGURATION AND TRANSPORT BLOCK SIZE SCALING IN LOW LATENCY SYSTEMS

摘要

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT oimiolo VIII °nolo III oioim Ill num ois (10) International Publication Number WO 2018/204635 A2 (51) International Patent Classification: H04L 5/00 (2006.01) HO4W 72/04 (2009.01) (21) International Application Number: PCT/US2018/030880 (22) International Filing Date: 03 May 2018 (03.05.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/502,560 05 May 2017 (05.05.2017) US 15/969,586 02 May 2018 (02.05.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; Attn: International IP Administration, 5775 Morehouse Dri- ve, San Diego, CA 92121-1714 (US). (72) Inventors: HOSSEINI, Seyedkianoush; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). CHEN, Wanshi; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). PATEL, Shimman, Arvind; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). GAAL, Peter; 5775 More- house Drive, San Diego, CA 92121-1714 (US). (74) Agent: ANDERSON, Thomas, D.; Holland & Hart LLP, P.O. Box 11583, Salt Lake City, UT 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, (54) Title: SOUNDING REFERENCE SIGNAL CONFIGURATION AND TRANSPORT BLOCK SIZE SCALING IN LOW LA- TENCY SYSTEMS 115-a kr) 71' O 1 00 —1 O 205 200 FIG. 2 (57) : Methods, systems, and devices for wireless communication are described. A base station may transmit an indication of first and second configurations for sounding reference signal (SRS) transmissions during first and second transmission time intervals (TTIs) having different durations. A user equipment (UE) may identify an SRS to be transmitted and determine a configuration for the SRS transmission based on the TTI duration and the received indication of the first and second configurations. The UE may then transmit the SRS based on the configuration. A base station may receive an SRS during a TTI and may determine a channel quality based at least in part on the SRS. Additionally, a device may identify data to transmit during a TTI, determine a number of resource elements available for transmission of the data during a TTI, and determine a transport block size (TBS) for the data transmission based on the available resource elements. [Continued on next page] WO 2018/204635 A2 IMIOHOIIIMIIMENHIMIIMINIMMOIS 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). Published: without international search report and to be republished upon receipt of that report (Rule 48.2(g))