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1. (WO2018144189) LISTEN BEFORE TRANSMIT (LBT) COMMUNICATION PROTOCOL FOR VEHICLE-TO-VEHICLE COMMUNICATIONS
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Pub. No.: WO/2018/144189 International Application No.: PCT/US2018/012928
Publication Date: 09.08.2018 International Filing Date: 09.01.2018
IPC:
H04W 74/00 (2009.01) ,H04L 5/00 (2006.01) ,H04W 74/08 (2009.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
74
Wireless channel access, e.g. scheduled or random access
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]
Applicants:
QUALCOMM INCORPORATED [US/US]; Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
BAGHEL, Sudhir Kumar; US
PATIL, Shailesh; US
LI, Junyi; US
TSIRTSIS, Georgios; US
Agent:
TEMPEL, Michael J.; US
SMITH, Gregory S.; US
BLAHA, Robert A.; US
HARMAN, John M.; US
MAXWELL, Lawrence D.; US
CRALL, Adam E.; US
WIGMORE, Steven P.; US
DULANEY, Robert B.; US
HOOTS, Matthew T.; US
Priority Data:
15/704,62214.09.2017US
62/452,67731.01.2017US
Title (EN) LISTEN BEFORE TRANSMIT (LBT) COMMUNICATION PROTOCOL FOR VEHICLE-TO-VEHICLE COMMUNICATIONS
(FR) PROTOCOLE DE COMMUNICATION À ÉCOUTE AVANT ÉMISSION (LBT) POUR COMMUNICATIONS DE VÉHICULE À VÉHICULE
Abstract:
(EN) A method for communication includes accessing all sub-channels in a communication frame, generating a counter that counts down beginning with a received first listen before talk (LBT) communication symbol, determining whether the counter reaches zero before receiving a second LBT communication symbol, determining whether a desired number N of contiguous sub-channels are available, and if the desired number N of contiguous sub-channels are available, transmitting an LBT symbol.
(FR) Un procédé de communication comprend les étapes consistant à : accéder à tous les sous-canaux dans une trame de communication ; générer un compteur qui décompte en commençant à partir d'un premier symbole reçu de communication à écoute avant émission (LBT) ; déterminer si le compteur atteint zéro avant de recevoir un second symbole de communication LBT ; déterminer si un nombre N désiré de sous-canaux contigus est disponible ; et, le cas échéant, transmettre un symbole LBT.
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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)