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51.发明专利
公开(公告)号：HUE027889T2
公开(公告)日：2016-10-28
申请号：HUE13722139
申请日：2013-03-28
Applicant: ERICSSON TELEFON AB L M (PUBL)
Inventor： SORRENTINO STEFANO , LINDQVIST FREDRIK
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52.发明专利
公开(公告)号：PL2832064T3
公开(公告)日：2016-08-31
申请号：PL13722139
申请日：2013-03-28
Applicant: ERICSSON TELEFON AB L M
Inventor： SORRENTINO STEFANO , LINDQVIST FREDRIK
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53.发明专利
公开(公告)号：DK2832064T3
公开(公告)日：2016-06-27
申请号：DK13722139
申请日：2013-03-28
Applicant: ERICSSON TELEFON AB L M (PUBL)
Inventor： SORRENTINO STEFANO , LINDQVIST FREDRIK
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54.发明专利
公开(公告)号：BRPI0823226A2
公开(公告)日：2015-07-07
申请号：BRPI0823226
申请日：2008-11-27
Applicant: ERICSSON TELEFON AB L M
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公开(公告)号：BRPI0622058A2
公开(公告)日：2014-05-06
申请号：BRPI0622058
申请日：2006-10-20
Applicant: ERICSSON TELEFON AB L M
Inventor： LINDQVIST FREDRIK , RIU JAUME RIUS I , ALBUQUERQUE JOAO CRISTOSTOMO WEYL , DE SALES CLAUDOMIRO DE SOUZA
Abstract: A method and loop qualification unit for determining loop parameters of a topology of a twisted pair loop for a digital subscriber line system. The parameters are represented by a vector that receives a measurement of a SELT parameter measured at one end of the loop and a measurement of a DELT loop transfer function measured at both ends of the loop. A first model generator generates a first model for the SELT parameter and a second model generator generates a second model for the DELT function based on the loop parameters represented by the vector. A processor then determines the parameters by minimizing the differences between the first model and the SELT parameter, and the second model and the DELT function. The determined parameters are represented by the vector that provides the minimization.
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Patent Agency Ranking
公开(公告)号：AU2006350182B2
公开(公告)日：2011-06-09
申请号：AU2006350182
申请日：2006-10-20
Applicant: ERICSSON TELEFON AB L M
Inventor： LINDQVIST FREDRIK , COSTA JOAO CRISTOSTOMO WEYL ALBUQUERQUE , RIU JAUME RIUS I , SALES CLAUDOMIRO DE SOUZA DE JUNIOR
Abstract: A method and loop qualification unit for determining loop parameters of a topology of a twisted pair loop for a digital subscriber line system. The parameters are represented by a vector that receives a measurement of a SELT parameter measured at one end of the loop and a measurement of a DELT loop transfer function measured at both ends of the loop. A first model generator generates a first model for the SELT parameter and a second model generator generates a second model for the DELT function based on the loop parameters represented by the vector. A processor then determines the parameters by minimizing the differences between the first model and the SELT parameter, and the second model and the DELT function. The determined parameters are represented by the vector that provides the minimization.
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57.发明专利
公开(公告)号：MY141423A
公开(公告)日：2010-04-30
申请号：MYPI20064129
申请日：2006-09-11
Applicant: ERICSSON TELEFON AB L M
Inventor： ALLEVAD STEFAN , OEDLING PER MIKAEL , FERTNER ANTONI , BACK HENRIK DANIEL , LINDQVIST FREDRIK , BOERJESSON PER OLA , RIU JAUME RIUS I
IPC: H04B3/46
Abstract: DETERMINING OF TRANSMISSION PROPERTIES OF A TELECOMMUNICATION TRANSMISSION LINE WHEREIN A COMPLEX INPUT IMPEDANCE OF THE LINE IS FIRST DETERMINED (204) FROM THE RELATIONSHIP BETWEEN A SIGNAL SENT ON THE LINE (200) AND A RECEIVED RESULTING SIGNAL (201). FOR FREQUENCIES FOR WHICH THE ABSOLUTE VALUE OF THE PROPAGATION CONSTANT TIMES LINE LENGTH IS LESS THAN N, THE LINE INPUT IMPEDANCE CAN BE EXPRESSED IN TERMS OF LINE CONSTANTS (LINE CAPACITANCE, RESISTANCE, INDUCTANCE AND CONDUCTANCE) AND FREQUENCY USING A TAYLOR SERIES EXPANSION. AFTER TRUNCATION OF HIGHER ORDER TERMS AND INSERTION OF MEASURED VALUES, THE RESULTING SYSTEM OF EQUATIONS CAN BE SOLVED AND THE LINE CONSTANTS GENERATED (206), PROVIDED THAT THERE ARE AT LEAST TWO FREQUENCIES. FURTHERMORE, FROM THE LINE CAPACITANCE AND A STANDARD VALUE FOR LINE CAPACITANCE PER KM, A LINE LENGTH CAN BE ESTIMATED (207).
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公开(公告)号：SE0002715L
公开(公告)日：2001-12-02
申请号：SE0002715
申请日：2000-07-19
Applicant: ERICSSON TELEFON AB L M
Inventor： LINDQVIST FREDRIK , FERTNER ANTONI , FRENGER PAAL
Abstract: An echo canceller reduces an echo signal produced when the transmitted signal leaks back into the receiver via a hybrid. The echo canceller estimates the echo signal from the transmitted signal, and then subtracting the estimated echo signal from the received signal. In practice, the echo path channel in a DMT-modem is much longer than the cyclic prefix, and therefore, the received echo signal will be subjected to both ISI (inter-symbol-interference) and ICI (inter-carrier-interference). A traditional echo canceller, designed for a xDSL-modem, uses either a time domain adaptive FIR-filter or a combined echo canceller implemented in both time and frequency domain. A matrix-based adaptive echo canceller is implemented in the frequency domain. Various example embodiments are disclosed.
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公开(公告)号：PL3681197T3
公开(公告)日：2022-07-25
申请号：PL20152329
申请日：2017-05-12
Applicant: ERICSSON TELEFON AB L M
Inventor： EL ESSAILI ALI , S KHAYRALLAH ALI , ZAIDI ALI , CARLSSON ANDERS , FURUSKÄR ANDERS , STJEMMAN ANDERS , BERGSTRÖM ANDREAS , CEDERGREN ANDREAS , REIAL ANDRES , GATTAMI ATHER , LINDOFF BENGT , OLSSON BENGT-ERIK , HAGERMAN BO , CAPAR CAGATAY , KILINC CANER , LARSSON CHRISTINA , TIDESTAV CLAES , SHI CONG , HUI DENNIS , SUNDMAN DENNIS , KANG DU HO , RAMOS EDGAR , KARIPIDIS ELEFTHERIOS , MYRHE ELENA , SEMAAN ELIANE , RINGH EMIL , WITTENMARK EMMA , DAHLMAN ERIK , ERIKSSON ERIK , ATHLEY FREDRIK , GUNNARSSON FREDRIK , HARRYSSON FREDRIK , LINDQVIST FREDRIK , FODOR GABOR , LI GEN , N KLANG GÖRAN , BARK GUNNAR , MILDH GUNNAR , WANG HAI , AXELSSON HAKAN , BJÖRKEGREN HAKAN , ASPLUND HENRIK , SAHLIN HENRIK , TULLBERG HUGO , DA SILVA ICARO L J , AKTAS ISMET , IVANA MARIC , BERG JAN-ERIK , PEISA JANNE , VIKBERG JARI , WANG JIANFENG , LIU JINHUA , SACHS JOACHIM , AXMON JOAKIM , HUSCHKE JÖRG , AXNÄS JOHAN , FURUSKOG JOHAN , RUNE JOHAN , SKÖLD JOHAN , TORSNER JOHAN , FRIDÉN JONAS , FRÖBERG OLSSON JONAS , KRONANDER JONAS , MEDBO JONAS , PRADAS JOSE LUIS , ANSARI JUNAID , NORRMAN KARL , WERNER KARL , WANG HELMERSSON KE , HILTUNEN KIMMO , BALACHANDRAN KUMAR , LINDBOM LARS , MANHOLM LARS , SUNDSTRÖM LARS , STATTIN MAGNUS , ERICSON MÅRTEN , HESSLER MARTIN , JOHANSSON MARTIN , COLDREY MIKAEL , FALLGREN MIKAEL , PRYTZ MIKAEL , TERCERO VARGAS MIUREL ISABEL , BRAHMI NADIA , WIBERG NICLAS , JALDÉN NIKLAS , JOHANSSON NIKLAS , SEIFI NIMA , HE NING , QUESETH OLAV , YILMAZ OSMAN NURI CAN , FRENGER PÅL , KARLSSON PATRIK , RUGELAND PATRIK , ALRIKSSON PETER , VON WRYCZA PETER , WALLENTIN PONTUS , RAMACHANDRA PRADEEPA , LU QIANXI , MIAO QINGYU , MOOSAVI REZA , ABRAHAMSSON RICHARD , BALDEMAIR ROBERT , LINDGREN ROBERT , FAN RUI , SHARMA SACHIN , LANDSTRÖM SARA , ASHRAF SHEHZAD ALI , TOMBAZ SIBEL , JÄRMYR SIMON , HONG SONGNAM , PARKVALL STEFAN , WAGER STEFAN , JACOBSSON SVEN , PETERSSON SVEN , RIMHAGEN THOMAS , WALLDEEN THOMAS , LOHMAR THORSTEN , IRNICH TIM , PALENIUS TORGNY , GUSTAVSSON ULF , ENGSTRÖM ULRIKA , SAXENA VIDIT , GARCIA VIRGILE , MÜLLER WALTER , ZHENG YANLI , WANG YI-PIN ERIC , SELÉN YNGVE , ZHANG ZHAN , ZHANG ZHANG , JIANG ZHIYUAN , LINCOLN BO , WALLÉN ANDERS , NILSSON JOHAN
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公开(公告)号：ES2895040T3
公开(公告)日：2022-02-17
申请号：ES16816399
申请日：2016-12-07
Applicant: ERICSSON TELEFON AB L M
Inventor： YANG YU , LINDQVIST FREDRIK
Abstract: Un método (1400) para operar un dispositivo de comunicación inalámbrica, que comprende: identificar un formato de canal de control de enlace ascendente físico, PUCCH, para la transmisión de la información de control de enlace ascendente, UCI, en el espectro sin licencia, en donde el formato PUCCH es PUCCH corto o PUCCH largo, en donde el PUCCH corto ocupa menos de 1 subtrama en el dominio del tiempo y abarca un ancho de banda completo del sistema en el dominio de la frecuencia con entrelazado en un nivel de bloque de recursos, y donde el PUCCH largo ocupa una subtrama en el dominio de tiempo y abarca todo el ancho de banda del sistema en el dominio de la frecuencia con entrelazado en un nivel de bloque de recursos (S1405); y transmitir la UCI a un nodo de acceso por radio de acuerdo con el formato PUCCH identificado (S1410).
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