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1. (WO2018204203) SEQUENCE FOR REFERENCE SIGNALS DURING BEAM REFINEMENT
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Pub. No.: WO/2018/204203 International Application No.: PCT/US2018/029998
Publication Date: 08.11.2018 International Filing Date: 27.04.2018
IPC:
H04B 7/06 (2006.01) ,H04B 7/08 (2006.01) ,H04W 72/04 (2009.01) ,H04L 5/00 (2006.01) ,H04W 74/08 (2009.01) ,H04B 7/0404 (2017.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
06
at transmitting station
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
08
at receiving station
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
72
Local resource management, e.g. selection or allocation of wireless resources or wireless traffic scheduling
04
Wireless resource allocation
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5
Arrangements affording multiple use of the transmission path
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
74
Wireless channel access, e.g. scheduled or random access
08
Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
[IPC code unknown for H04B 7/0404]
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
NAGARAJA, Sumeeth; US
LUO, Tao; US
AKKARAKARAN, Sony; US
JOHN WILSON, Makesh Pravin; US
WANG, Xiao Feng; US
MONTOJO, Juan; US
CHEN, Shengbo; US
NAM, Wooseok; US
Agent:
LARSEN, Per H.; US
Priority Data:
15/963,78526.04.2018US
62/501,61904.05.2017US
Title (EN) SEQUENCE FOR REFERENCE SIGNALS DURING BEAM REFINEMENT
(FR) SÉQUENCE POUR SIGNAUX DE RÉFÉRENCE PENDANT UN AFFINEMENT DE FAISCEAU
Abstract:
(EN) Methods, systems, and devices for wireless communication are described. Wireless communications systems may support beamformed transmissions between devices (e.g., to improve coverage range). The beamformed transmissions may depend on discovery and maintenance of receive and transmit beams over which a given device may communicate with another device. Various receive and transmit beams for a given device may be compared using reference signals. As the number of devices attempting to access a cell increases, the number of reference signals to be transmitted may scale proportionally. Large numbers of reference signals may flood time-frequency resources of the system and/or require excessive processing at a mobile device. Scrambling sequences for reference signals may be employed to improve efficiency of resource usage. In aspects, the scrambling sequences may be implicitly determined (e.g., based on resources over which the access request was transmitted). Such an implicit association may reduce the need for additional signaling.
(FR) L'invention concerne des procédés, des systèmes et des dispositifs de communication sans fil. Des systèmes de communication sans fil peuvent prendre en charge des transmissions par formation de faisceau entre des dispositifs (par exemple, pour améliorer la plage de couverture). Les transmissions par formation de faisceau peuvent dépendre de la découverte et de la maintenance de faisceaux de réception et de transmission sur lesquels un dispositif donné peut communiquer avec un autre dispositif. Divers faisceaux de réception et de transmission pour un dispositif donné peuvent être comparés à l'aide de signaux de référence. À mesure que le nombre de dispositifs tentant d'accéder à une cellule augmente, le nombre de signaux de référence à transmettre peut varier proportionnellement. De grands nombres de signaux de référence peuvent inonder des ressources temps-fréquence du système et/ou nécessiter un traitement excessif au niveau d'un dispositif mobile. Des séquences de brouillage pour des signaux de référence peuvent être utilisées pour améliorer l'efficacité de l'utilisation des ressources. Selon certains aspects, les séquences de brouillage peuvent être déterminées implicitement (par exemple, sur la base de ressources sur lesquelles la demande d'accès a été transmise). Une telle association implicite peut réduire la nécessité d'une signalisation supplémentaire.
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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)