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1. (WO2019005453) TECHNIQUES FOR ORTHOGONAL DEMODULATION REFERENCE SIGNALS
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Pub. No.: WO/2019/005453 International Application No.: PCT/US2018/036513
Publication Date: 03.01.2019 International Filing Date: 07.06.2018
IPC:
H04L 5/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5
Arrangements affording multiple use of the transmission path
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
LEE, Heechoon; US
JIANG, Jing; US
SUN, Jing; US
Agent:
BINDSEIL, James J.; US
HEALY, Tiffany Brooks; US
CHESSER, Wilburn; US
HARRINGTON, Colin J.; US
HAYDOUTOVA, Juliana; US
ROWE, Sheree T.; US
GELFOUND, Craig A.; US
FAINBERG, Michael; US
NOONAN, David M.; US
CASTRO, Francisco; US
HODGES, Jonas J.; US
SHARIFZADEH, Ibraham; US
VIDWAN, Jasjit; US
CORRADO, Thomas; US
SHAO, Yin; US
SHARIFZADEH, Ali; US
GAUL, Allison; US
Priority Data:
16/001,29106.06.2018US
62/525,06626.06.2017US
Title (EN) TECHNIQUES FOR ORTHOGONAL DEMODULATION REFERENCE SIGNALS
(FR) TECHNIQUES DE SIGNAUX DE RÉFÉRENCE DE DÉMODULATION ORTHOGONALE
Abstract:
(EN) Various aspects described herein relate to techniques for using orthogonal demodulation reference signals (DMRSs) for downlink control channels in wireless communications systems. In an aspect, a method for a user equipment (UE) includes receiving one or more DMRSs over a multi-symbol downlink control channel. The method may further include identifying a time-first control channel element (CCE)-to-resource element group (REG) mapping for the multi-symbol downlink control channel, and identifying an orthogonal DMRS of the one or more DMRSs based on the time-first CCE-to-REG mapping, and decoding the multi-symbol downlink control channel based on at least the identified orthogonal DMRS.
(FR) Divers aspects de la présente invention concernent des techniques d'utilisation de signaux de référence de démodulation orthogonale (DMRS) pour des canaux de commande de liaison descendante dans des systèmes de communication sans fil. Selon un aspect, un procédé pour un équipement utilisateur (UE) consiste à recevoir un ou plusieurs DMRS sur un canal de commande de liaison descendante multi-symbole. Le procédé peut en outre consister à identifier un mappage de groupe d'éléments (REG) de canal de commande de premier élément de canal de commande (CCE) pour le canal de commande de liaison descendante multi-symbole, et à identifier un DMRS orthogonal desdits DMRS sur la base du mappage premier CCE-REG, et à décoder le canal de commande de liaison descendante multi-symbole sur la base d'au moins le DMRS orthogonal identifié.
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Designated States: 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)