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1. (WO2018058597) MULTEFIRE AUTONOMOUS UPLINK CHANNEL CLEARANCE SIGNALING
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Pub. No.: WO/2018/058597 International Application No.: PCT/CN2016/101243
Publication Date: 05.04.2018 International Filing Date: 30.09.2016
IPC:
H04W 72/04 (2009.01) ,H04W 74/08 (2009.01)
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
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:
CHENG, Peng [CN/CN]; US (US)
CHANDE, Vinay [US/US]; US (US)
CHENDAMARAI KANNAN, Arumugam [IN/US]; US (US)
PATEL, Chirag [IN/US]; US (US)
QUALCOMM INCORPORATED [US/US]; c/o International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
CHENG, Peng; US
CHANDE, Vinay; US
CHENDAMARAI KANNAN, Arumugam; US
PATEL, Chirag; US
Agent:
NTD PATENT & TRADEMARK AGENCY LIMITED; 中国北京市 东城区北三环东路36号北京环球贸易中心C座10层 10th Floor, Tower C, Beijing Global Trade Center 36 North Third Ring Road East, Dongcheng District Beijing 100013, CN
Priority Data:
Title (EN) MULTEFIRE AUTONOMOUS UPLINK CHANNEL CLEARANCE SIGNALING
(FR) SIGNALISATION D'AUTORISATION DE CANAL DE LIAISON MONTANTE AUTONOME MULTEFIRE
Abstract:
(EN) Methods, systems, and devices for wireless communication are described. A user equipment (UE) or a base station may select an autonomous uplink mode, which may support unscheduled uplink transmissions in an unlicensed radio frequency spectrum band. A UE may initiate a channel clearance scheme by transmitting a first channel clearance signal (e.g., a request-to-send message), which may include a UE identifier, to a base station, before transmitting an uplink message in the unlicensed radio frequency spectrum band. In response, the base station may transmit a second channel clearance signal (e.g., a clear-to-send message) to the UE which, in some cases, may include control information. In some examples, the second channel clearance signal may be transmitted at a power level that is based on a characteristic of the UE. After receiving the second channel clearance signal, the UE may transmit an uplink message in the autonomous uplink mode.
(FR) L'invention concerne des procédés, des systèmes et des dispositifs de communication sans fil. Un équipement d'utilisateur (UE) ou une station de base peut sélectionner un mode de liaison montante autonome, qui peut prendre en charge des transmissions de liaison montante non planifiées dans une bande de spectre de radiofréquences sans licence. Un UE peut initier un schéma d'autorisation de canal en transmettant un premier signal d'autorisation de canal (par exemple, un message de requête à envoyer), qui peut comprendre un identifiant d'UE, à une station de base, avant de transmettre un message de liaison montante dans la bande de spectre de radiofréquences sans licence. En réponse, la station de base peut transmettre un second signal d'autorisation de canal (par exemple, un message prêt à envoyer) à l'UE qui, dans certains cas, peut comprendre des informations de commande. Dans certains exemples, le second signal d'autorisation de canal peut être transmis à un niveau de puissance qui est basé sur une caractéristique de l'UE. Après réception du second signal d'autorisation de canal, l'UE peut transmettre un message de liaison montante dans le mode de liaison montante autonome.
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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, JP, KE, KG, 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)