Patent SG-11201901279Q-A (SG)
Title: Comb adaptation for interlaced fdm dmrs
Inventor: WEI CHAO
IPC: H04L29/08
Filed: 2017-03-24
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property C.--.` MD HIM 0 11101 HOE 3E1 0 0111111H 1101E1 010 110 11110 III OEN Organization . International Bureau (10) International Publication Number 03 (43) International Publication Date ......\"' WO 2018/058920 Al 05 April 2018 (05.04.2018) WIP0 I PCT (51) (21) (22) (25) Filing Language: (26) (30) (71) International Patent Classification: (72) Inventors; and H04L 29/08 (2006.01) (71) Applicants (for US only): WEI, Chao [CN/CN]; 5775 International Application Number: Morehouse Drive, San Diego, California 92121-1714 PCT/CN2017/078005 (US). CHEN, Wanshi [CN/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). GAAL, Peter International Filing Date: [US/US]; 5775 Morehouse Drive, San Diego, California 24 March 2017 (24.03.2017) 92121-1714 (US). English (74) Agent: NTD PATENT & TRADEMARK AGENCY LIMITED; 10th Floor, Block A, Investment Plaza, 27 Jin- Publication Language: English rongdajie, Xicheng District, Beijing 100033 (CN). Priority Data: (81) Designated States (unless otherwise indicated, for every PCT/CN2016/101146 kind of national protection available): AE, AG, AL, AM, 30 September 2016 (30.09.2016) CN AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, Applicant: QUALCOMM INCORPORATED [US/US]; CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, ATTN: International IP Administration, 5775 Morehouse DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, Drive, San Diego, California 92121-1714 (US). HR, HU, ID, IL, IN, IR, IS, 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, Title: COMB ADAPTATION FOR INTERLACED FDM DMRS : Comb adaptation for interlaced Transmission configuration for DMRS assigned combinations provide for a different additional interference randomization through comb shifting, using inter-subframe are present without uplink grant, the UE may select comb values for retransmissions which are different than the comb values used for the original DMRS transmissions. (57) i ln Some , 1 transmissions © retransmissions, 500 ) 501 ) reference signals (DMRS) is dis- of cyclic shift, OCC, and comb value. slots in the same subframe. Further aspects hopping functions. Additionally, where re- based on the counter number for the = (54) Determine a transmission configuration for DMRS in a subframe for each of a plurality of served UEs, wherein the transmission configuration includes a combination of at least a cyclic shift, an OCC, and a comb value. • Dynamically signal the transmission configuration to each of the plurality of served UEs, wherein at least one of the transmission configurations assigns a first comb value for a first slot of the subframe and a second comb value for a second slot of the subframe that is different than the first comb value. FIGS 5 frequency division multiplex (IFDM) demodulation may be assigned to UEs with a coded combination comb value to be used for the different mo d ' .4 © cN ei GO cussed. 0 ---- provide GC ei O [Continued on next page] WO 2018/058920 Al MIDEDIMOMOIDEIREEMOOMMEMEIE1010110EVOIS 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: — of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3))