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1. (WO2017153814) ANTENNA ARRAY CALIBRATION METHOD AND APPARATUS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/153814 International Application No.: PCT/IB2016/051414
Publication Date: 14.09.2017 International Filing Date: 11.03.2016
IPC:
H04B 17/12 (2015.01) ,H04B 17/18 (2015.01) ,H01Q 3/26 (2006.01) ,H01Q 1/24 (2006.01)
[IPC code unknown for H04B 17/12][IPC code unknown for H04B 17/18]
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
3
Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an aerial or aerial system
26
varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
12
Supports; Mounting means
22
by structural association with other equipment or articles
24
with receiving set
Applicants:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE/SE]; Se-164 83 Stockholm, SE
Inventors:
MCGOWAN, Neil; CA
BEN GHALBA, Slim; CA
DA SILVEIRA, Martinus Willem; CA
Agent:
WEISBERG, Alan, M.; US
Priority Data:
Title (EN) ANTENNA ARRAY CALIBRATION METHOD AND APPARATUS
(FR) PROCÉDÉ ET APPAREIL D'ÉTALONNAGE DE RÉSEAU D'ANTENNES
Abstract:
(EN) A method and system for time domain calibration to compensate for signal phase impairment in transmit paths in a transmitter configured to drive an antenna array are disclosed. According to one aspect, a base station is configured to compensate for signal impairment in transmit paths feeding an array of antenna elements in which the compensation is performed in the time domain. The base station includes a combiner configured to combine signals output from the transmit paths to form a feedback signal. An impairment estimator is configured to receive the feedback signal and outbound traffic signals and to determine a phase compensation value for each impairment path. A multiplier is provided for each transmit path, the multipliers configured to multiply the outbound traffic signals by respective phase compensation values.
(FR) L'invention concerne un procédé et un système d'étalonnage de domaine temporel permettant de compenser la détérioration de phase de signal dans des chemins de transmission dans un émetteur configuré pour commander un réseau d'antennes. Selon un aspect, une station de base est configurée pour compenser une détérioration de signal dans des chemins de transmission qui alimentent un réseau d'éléments d'antenne dans lequel la compensation est effectuée dans le domaine temporel. La station de base comprend un multiplexeur configuré pour combiner des signaux émis depuis des chemins de transmission afin de former un signal de rétroaction. Un estimateur de détérioration est configuré pour recevoir le signal de rétroaction et des signaux de trafic sortant et pour déterminer une valeur de compensation de phase destinée à chaque chemin de détérioration. Un multiplicateur est prévu pour chaque chemin de transmission, les multiplicateurs étant conçus pour multiplier les signaux de trafic sortant par des valeurs de compensation de phase respectives.
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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, 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, 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)