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1. (WO2019067956) WIRELESS POWER SYSTEMS INCLUDING DETERMINATION OF CHANNEL TRANSFER FUNCTION FROM BACKSCATTER SIGNALS
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Pub. No.: WO/2019/067956 International Application No.: PCT/US2018/053513
Publication Date: 04.04.2019 International Filing Date: 28.09.2018
IPC:
H04B 1/10 (2006.01) ,H04B 1/525 (2015.01) ,H04B 3/54 (2006.01) ,H04L 27/26 (2006.01) ,H04Q 5/22 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06
Receivers
10
Means associated with receiver for limiting or suppressing noise or interference
[IPC code unknown for H04B 1/525]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
3
Line transmission systems
54
Systems for transmission via power distribution lines
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
26
Systems using multi-frequency codes
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
5
Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
18
with indirect connection, i.e. through subordinate switching centre
22
the subordinate centre not permitting interconnection of subscribers connected thereto
Applicants:
UNIVERSITY OF WASHINGTON [US/US]; 4545 Roosevelt Way NE, Suite 400 Seattle, Washington 98105-4721, US
Inventors:
REYNOLDS, Matthew S.; US
ARNITZ, Daniel; US
Agent:
SPAITH, Jennifer; US
ANDKEN, Kerry Lee; US
CORDRAY, Michael S.; US
ENG, Kimton; US
FAUTH, Justen; US
HEGSTROM, Brandon; US
ITO, Mika; US
MA, Yue Matthew; US
MEIKLEJOHN, Paul T.; US
QUECAN, Andrew F.; US
SPAITH, Jennifer; US
STERN, Ronald; US
WETZEL, Elen; US
Priority Data:
62/565,49229.09.2017US
Title (EN) WIRELESS POWER SYSTEMS INCLUDING DETERMINATION OF CHANNEL TRANSFER FUNCTION FROM BACKSCATTER SIGNALS
(FR) SYSTÈMES D'ALIMENTATION SANS FIL FAISANT APPEL À UNE DÉTERMINATION DE FONCTION DE TRANSFERT DE CANAL À PARTIR DE SIGNAUX DE RÉTRODIFFUSION
Abstract:
(EN) Examples described herein utilize a backscatter signal provided by a wirelessly powered device to estimate channel information, (e.g., a. channel transfer function) between the wirelessly powered device and a transmitter system. The channel information may be used to optimize ΜIΜΟ power transfer for linear as well as nonlinear backscatter devices. Examples of die method 'may shift some or all of the power cost and complexity of coherent channel measurements from the WFD to the transmitters), and allow WPT optimization to milliwatt- or microwatt-class wirelessly powered devices.
(FR) Des exemples de l'invention font appel à un signal de rétrodiffusion fourni par un dispositif alimenté par voie sans fil pour estimer des informations de canal, (par exemple, une fonction de transfert de canal) entre le dispositif alimenté par voie sans fil et un système émetteur. Les informations de canal peuvent servir à optimiser le transfert de puissance par ΜΙΜΟ pour des dispositifs de rétrodiffusion linéaire et non linéaire. Des exemples de procédé de puce peuvent décaler tout ou partie du coût de puissance et de la complexité de mesures de canal cohérentes du WFD aux émetteurs, et permettre une optimisation de WPT pour des dispositifs alimentés par voie sans fil de classe milliwatt ou microwatt.
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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)