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1. (WO2018162958) SPUR REDUCTION CIRCUIT AND APPARATUS, RADIO TRANSCEIVER, MOBILE TERMINAL, METHOD AND COMPUTER PROGRAM FOR SPUR REDUCTION
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Pub. No.: WO/2018/162958 International Application No.: PCT/IB2017/051417
Publication Date: 13.09.2018 International Filing Date: 10.03.2017
IPC:
H04B 1/10 (2006.01) ,H04B 1/16 (2006.01) ,H04B 1/48 (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
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
16
Circuits
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
38
Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
40
Circuits
44
Transmit/receive switching
48
in circuit for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
Applicants:
INTEL IP CORPORATION [US/US]; 2200 Mission College Boulevard Santa Clara, California 95054, US
Inventors:
TRACHT, Thorsten; DE
Agent:
ARABI, Mani; c/o 2SPL Patentanwälte PartG mbB P.O. 151723 80050 München, DE
Priority Data:
Title (EN) SPUR REDUCTION CIRCUIT AND APPARATUS, RADIO TRANSCEIVER, MOBILE TERMINAL, METHOD AND COMPUTER PROGRAM FOR SPUR REDUCTION
(FR) CIRCUIT ET APPAREIL DE RÉDUCTION DES PARASITES, ÉMETTEUR-RÉCEPTEUR RADIO, TERMINAL MOBILE, PROCÉDÉ ET PROGRAMME INFORMATIQUE POUR RÉDUIRE LES PARASITES
Abstract:
(EN) Examples provide a spur reduction circuit and a spur reduction apparatus, a radio transceiver, a mobile terminal, a method and a computer program for spur reduction. The spur reduction circuit (10) is configured to reduce spur interference in a baseband radio signal, d(n), n indexing samples and comprises at least one input (12) for the baseband radio signal, d(n), and information on at least one spur frequency, ω(n). The spur reduction circuit further comprises an adaptive filter (14) configured to filter the baseband radio signal, d(n), to obtain a baseband radio signal with reduced spur interference, e(n). The adaptive filter (14) is further configured to filter the baseband radio signal, d(n), based on at least one filter coefficient, w(n), and based on the information on the at least one spur frequency, ω(n). The spur reduction circuit (10) further comprises an update module (16) configured to adapt the at least one filter coefficient, w(n), based on the baseband radio signal with reduced spur interference e(n). The spur reduction circuit (10) further comprises at least one output (18) for the baseband signal with reduced spur interference e(n).
(FR) Des exemples de l'invention concernent un circuit de réduction des parasites et un appareil de réduction des parasites, un émetteur-récepteur radio, un terminal mobile, un procédé et un programme informatique pour réduire les parasites. Le circuit de réduction des parasites (10) est configuré pour réduire une interférence parasite dans un signal radio de bande de base, d(n), n échantillons d'indexation, et comprend au moins une entrée (12) pour le signal radio de bande de base, d(n), et des informations relatives à au moins une fréquence parasite, ω(n). Le circuit de réduction des parasites comprend en outre un filtre adaptatif (14) configuré pour filtrer le signal radio de bande de base, d(n), afin d'obtenir un signal radio de bande de base présentant une interférence parasite réduite, e(n). Le filtre adaptatif (14) est en outre configuré pour filtrer le signal radio de bande de base, d(n), sur la base d'au moins un coefficient de filtre, w(n), et sur la base des informations relatives à la/aux fréquence(s) parasite(s), ω(n). Le circuit de réduction des parasites (10) comprend en outre un module de mise à jour (16) configuré pour adapter le(s) coefficient(s) de filtre, w(n), sur la base du signal radio de bande de base présentant une interférence parasite réduite e(n). Le circuit de réduction des parasites (10) comprend en outre au moins une sortie (18) pour le signal de bande de base présentant une interférence parasite réduite e(n).
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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, 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)