Patents by Inventor Birgitta Olin
Birgitta Olin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230337218Abstract: The present disclosure relates to a method of a radio base station of scheduling a wireless communication device, and a radio base station performing the method. The disclosure further relates to a method of a radio base station of suppressing interference of signals to which a wireless communication device of a neighbouring radio cell is subjected, and a radio base station performing the method.Type: ApplicationFiled: June 23, 2020Publication date: October 19, 2023Inventors: Anders Furuskär, Birgitta Olin, Niklas Jaldén
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Publication number: 20170013475Abstract: There is provided mechanisms for improving performance in a wireless communications network. A method is performed by a network node. The method comprises acquiring an identification of a set of cells for which adjustment is needed. The method comprises identifying a reason for the adjustment and improvement possibilities of the set of cells using at least one indicator. The reason and the improvement possibilities define a combination of which parameters and network nodes that could be adjusted. The method comprises determining an improvement action for the set of cells by jointly optimizing the combination of parameters and network nodes based on the reason and the improvement possibilities.Type: ApplicationFiled: July 8, 2015Publication date: January 12, 2017Inventors: Panagiota Lioliou, Harald Kallin, Birgitta Olin, Pradeepa Ramachandra, Kristina Zetterberg
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Patent number: 9332566Abstract: The invention relates to a method for service aware scheduling of wireless resources in a wireless network. According to the inventive method, a service request for service delivery of a service type is received (51). A performance to value relationship for the service type is determined (52) and approximated (53) with a scheduling weight function associated with the service type. Previous performance for service delivery related to this service request is evaluated and approximated with a performance estimate (54). A scheduling weight is determined (55) by introducing the performance estimate in the scheduling weight function. Resource scheduling is performed (58) following a step of comparing (56) scheduling weights for on-going service requests. The invention also includes a network node and a system for service aware scheduling of wireless resources in a wireless network.Type: GrantFiled: December 5, 2011Date of Patent: May 3, 2016Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Kristina Zetterberg, Mehdi Amirijoo, Fredrik Gunnarsson, Johan Moe, Birgitta Olin
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Patent number: 9241280Abstract: A method in a first radio network node for testing a transmission parameter value in a wireless communication system is provided. The first radio network node is configured to, during operational mode thereof, perform transmissions using available resources divided in to resource blocks. The first radio network node allocates a test resource block, for test purposes, among the available resources. The first radio network node defines for the test resource block, a test value for the transmission parameter. The test value differs from the nominal value. The first radio network node performs, during operational mode, a test transmission using the resource block. During the test transmission, the transmission parameter is set to the test value. The test transmission is configured to form the basis for an evaluation of the test value.Type: GrantFiled: April 29, 2011Date of Patent: January 19, 2016Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Harald Kallin, Birgitta Olin
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Patent number: 9161283Abstract: A method in a radio network node (105) for handling handover of a user equipment (110) from a first cell (115) to a second cell (120) is provided. A first scenario (410, 510), associated with a radio quality of the first cell (115) and a radio quality of the second cell (120), and a second scenario (420, 520), associated with a radio quality of the first cell (115) and a radio quality of the second cell (120), are defined. Also defined is at least one individual handover parameter (210, 220) for each one of the scenarios. Measured radio qualities of the first and second cells, associated with the user equipment (110) are obtained. The user equipment (110) is then classified into one of the scenarios based on the measured radio qualities, and a handover decision is established based on the individual handover parameter (210, 220) for the chosen scenario.Type: GrantFiled: December 7, 2010Date of Patent: October 13, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Harald Kallin, Birgitta Olin
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Publication number: 20140349695Abstract: The invention relates to a method for service aware scheduling of wireless resources in a wireless network. According to the inventive method, a service request for service delivery of a service type is received (51). A performance to value relationship for the service type is determined (52) and approximated (53) with a scheduling weight function associated with the service type. Previous performance for service delivery related to this service request is evaluated and approximated with a performance estimate (54). A scheduling weight is determined (55) by introducing the performance estimate in the scheduling weight function. Resource scheduling is performed (58) following a step of comparing (56) scheduling weights for on-going service requests. The invention also includes a network node and a system for service aware scheduling of wireless resources in a wireless network.Type: ApplicationFiled: December 5, 2011Publication date: November 27, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Kristina Zetterberg, Mehdi Amirijoo, Fredrik Gunnarsson, Johan Moe, Birgitta Olin
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Patent number: 8738004Abstract: Handover (HO) statistics and handover issue events which are due to non-mobility causes are not included in the statistics fed into mobility robustness optimization (MRO). The non-mobility causes may include, e.g., load balancing, retracting users to prepare for cell maintenance or restart/reconfiguration and cell outage including compensation means. Radio link failure (RLF), handover failure (HOF), and handover oscillations (HOosc) that are due to non-mobility cause are excluded from the statistics upon which mobility robustness optimization is based. Non-mobility causes are also differentiated from mobility causes when reporting key performance indicators to an operator.Type: GrantFiled: March 22, 2012Date of Patent: May 27, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Mehdi Amirijoo, Fredrik Gunnarsson, Birgitta Olin, Johan Moe, Kristina Zetterberg
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Publication number: 20140038630Abstract: A method in a first radio network node for testing a transmission parameter value in a wireless communication system is provided. The first radio network node is configured to, during operational mode thereof, perform transmissions using available resources divided in to resource blocks. The first radio network node allocates a test resource block, for test purposes, among the available resources. The first radio network node defines for the test resource block, a test value for the transmission parameter. The test value differs from the nominal value. The first radio network node performs, during operational mode, a test transmission using the resource block. During the test transmission, the transmission parameter is set to the test value. The test transmission is configured to form the basis for an evaluation of the test value.Type: ApplicationFiled: April 29, 2011Publication date: February 6, 2014Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Harald Kallin, Birgitta Olin
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Patent number: 8619708Abstract: A device detects an overload in a serving cell of a wireless network based on information associated with the serving cell, and determines, when the overload in the serving cell is detected, user equipment in the serving cell that are candidates to move to a target cell of the wireless network based on calculated user throughputs of user equipment in the serving cell. The device also selects one or more of the candidate user equipment to move to the target cell, and moves the selected user equipment to the target cell.Type: GrantFiled: November 30, 2009Date of Patent: December 31, 2013Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Harald Kallin, Birgitta Olin
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Publication number: 20130344871Abstract: A method in a radio network node (105) for handling handover of a user equipment (110) from a first cell (115) to a second cell (120) is provided. A first scenario (410, 510), associated with a radio quality of the first cell (115) and a radio quality of the second cell (120), and a second scenario (420, 520), associated with a radio quality of the first cell (115) and a radio quality of the second cell (120), are defined. Also defined is at least one individual handover parameter (210, 220) for each one of the scenarios. Measured radio qualities of the first and second cells, associated with the user equipment (110) are obtained. The user equipment (110) is then classified into one of the scenarios based on the measured radio qualities, and a handover decision is established based on the individual handover parameter (210, 220) for the chosen scenario.Type: ApplicationFiled: December 7, 2010Publication date: December 26, 2013Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Harald Kallin, Birgitta Olin
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Publication number: 20130115959Abstract: Handover (HO) statistics and handover issue events which are due to non-mobility causes are not included in the statistics fed into mobility robustness optimization (MRO). The non-mobility causes may include, e.g., load balancing, retracting users to prepare for cell maintenance or restart/reconfiguration and cell outage including compensation means. Radio link failure (RLF), handover failure (HOF), and handover oscillations (HOosc) that are due to non-mobility cause are excluded from the statistics upon which mobility robustness optimization is based. Non-mobility causes are also differentiated from mobility causes when reporting key performance indicators to an operator.Type: ApplicationFiled: March 22, 2012Publication date: May 9, 2013Inventors: Mehdi Amirijoo, Fredrik Gunnarsson, Birgitta Olin, Johan Moe, Kristina Zetterberg
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Patent number: 8311002Abstract: The present invention relates to a method and an arrangement for optimizing radio resource utilizations when scheduling data transmissions between a radio base station (15) and one or more user equipments (18) on a radio channel over a radio interface in a communication network comprising a plurality of said radio base stations (15) serving cells between which said user equipments (18) are moving. Firstly information on channel quality of said radio channel is obtained. Also, information on the traffic per user within the cell is obtained. Then, the information on channel quality and said traffic information are combined and the data transmission is scheduled based on the combination.Type: GrantFiled: March 30, 2007Date of Patent: November 13, 2012Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Henrik Nyberg, Birgitta Olin, Nicholas Debernardi
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Publication number: 20110128862Abstract: A device detects an overload in a serving cell of a wireless network based on information associated with the serving cell, and determines, when the overload in the serving cell is detected, user equipment in the serving cell that are candidates to move to a target cell of the wireless network based on calculated user throughputs of user equipment in the serving cell. The device also selects one or more of the candidate user equipment to move to the target cell, and moves the selected user equipment to the target cell.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Applicant: TELEFONAKTIEBOLAGET L M ERICSSONInventors: Harald KALLIN, Birgitta OLIN
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Patent number: 7873362Abstract: A simple and reliable method for dimensioning CDMA based networks is achieved by a method for evaluating or dimensioning a radio network comprising the steps of—defining a radio network model comprising at least one radio base station and a plurality of mobile terminals, —for each mobile terminal in the model, defining a path gain value for a signal path between the mobile terminal and each of the radio base stations, said method being characterized by the steps of—for each mobile terminal, selecting at least one of said path gain values, —defining a data set comprising at least one parameter based on said selected at least one path gain value for each mobile terminal, and—performing dimensioning calculations on the data set. Especially if data sets are prestored the dimensioning calculations can be carried out in very short time.Type: GrantFiled: December 22, 2004Date of Patent: January 18, 2011Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Henrik Nyberg, Per Magnus Lundevall, Birgitta Olin
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Publication number: 20100085923Abstract: The present invention relates to a method and an arrangement for optimizing radio resource utilizations when scheduling data transmissions between a radio base station (15) and one or more user equipments (18) on a radio channel over a radio interface in a communication network comprising a plurality of said radio base stations (15) serving cells between which said user equipments (18) are moving. Firstly information on channel quality of said radio channel is obtained. Also, information on the traffic per user within the cell is obtained. Then, the information on channel quality and said traffic information are combined and the data transmission is scheduled based on the combination.Type: ApplicationFiled: March 30, 2007Publication date: April 8, 2010Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Henrik Nyberg, Birgitta Olin, Nicholas Debernardi
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Publication number: 20080254748Abstract: A simple and reliable method for dimensioning CDMA based networks is achieved by a method for evaluating or dimensioning a radio network comprising the steps of—defining a radio network model comprising at least one radio base station and a plurality of mobile terminals, —for each mobile terminal in the model, defining a path gain value for a signal path between the mobile terminal and each of the radio base stations, said method being characterized by the steps of—for each mobile terminal, selecting at least one of said path gain values, —defining a data set comprising at least one parameter based on said selected at least one path gain value for each mobile terminal, and—performing dimensioning calculations on the data set. Especially if data sets are prestored the dimensioning calculations can be carried out in very short time.Type: ApplicationFiled: December 22, 2004Publication date: October 16, 2008Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (pbl)Inventors: Henrik Nyberg, Per Magnus Lundevall, Birgitta Olin