Patents by Inventor Sven Ekemark
Sven Ekemark 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: 20240048338Abstract: A method for selecting one or more secondary cells, SCells for supporting communication with a user equipment, UE, by carrier aggregation, CA. The one or more SCells is/are selected from a set of SCell candidates available for an access node. The method includes estimating a probability that the UE connected to a primary cell, PCell, of the access node is in coverage of an SCell in the set of candidates, predicting available resources for the SCell, calculating a CA value for the SCell based on the estimated probability, an estimated spectral efficiency and the predicted available resources, and calculating a CA value for each SCell of the set of SCell candidates, ranking the SCells of the set of SCell candidates based on their calculated CA values, and selecting one or more SCells for providing CA with the UE based on the ranking.Type: ApplicationFiled: December 23, 2020Publication date: February 8, 2024Inventors: Mats ZACHRISON, Peiliang CHANG, Tao CUI, Sven EKEMARK, Sofia SVEDEVALL, Henning WIEMANN, Linnea FAXÉN
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Patent number: 11039340Abstract: The present invention relates to a source node, a target node and methods for supporting re-distribution of load from a source cell to a target cell in a wireless network, wherein the target cell is a combined cell comprising a plurality of spatially separated sectors that are configured for downlink and/or uplink communication on a same carrier frequency. Performed in the source node, the method comprises receiving, from the target node, a load report comprising traffic load in one or more of the plurality of spatially separated target sectors comprised in the target cell. Reference signal measurements defining radio conditions for one or more of the target sectors comprised in the target cell are retrieved from one or more wireless devices served by the source node.Type: GrantFiled: March 4, 2016Date of Patent: June 15, 2021Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Emil Pettersson, Samuel Axelsson, Sven Ekemark, Joakim Hellsten, Dan Korsfeldt, Parisa Pakniat
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Patent number: 10917900Abstract: There is provided mechanisms for determining frequency location of a primary cell (PCell) for a wireless device in a carrier aggregation supported communications network having access to a group of low frequency bands and a group of high frequency bands. A method is performed by a network node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a pathloss level between a wireless device served by the communications network and the network node. The method comprises selecting, from the acquired uplink load level and pathloss level, which one of the group of low frequency bands and the group of high frequency bands to place the frequency location of the PCell for the wireless device.Type: GrantFiled: September 8, 2015Date of Patent: February 9, 2021Assignee: Telefonaktiebolaget LM Ericsson(publ)Inventors: Fredric Kronestedt, Sven Ekemark, Magnus Lundevall, Jacob Österling
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Publication number: 20200296625Abstract: The present invention relates to a source node, a target node and methods for supporting re-distribution of load from a source cell to a target cell in a wireless network, wherein the target cell is a combined cell comprising a plurality of spatially separated sectors that are configured for downlink and/or uplink communication on a same carrier frequency. Performed in the source node, the method comprises receiving, from the target node, a load report comprising traffic load in one or more of the plurality of spatially separated target sectors comprised in the target cell. Reference signal measurements defining radio conditions for one or more of the target sectors comprised in the target cell are retrieved from one or more wireless devices served by the source node.Type: ApplicationFiled: March 4, 2016Publication date: September 17, 2020Inventors: Emil Pettersson, Samuel Axelsson, Sven Ekemark, Joakim Hellsten, Dan Korsfeldt, Parisa Pakniat
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Publication number: 20200120578Abstract: A wireless device (120) and a method therein for receiving positioning assistance data from a network node (110). The device receives information about radio resources that are to provide scheduling information of a positioning System Information Broadcast (SIB) which scheduling information is different from scheduling information of non-positioning SIB. The device uses the radio resources for receiving scheduling information of the positioning SIB. Further, the device receives positioning SIBs comprising positioning assistance data. The device determines whether or not the positioning assistance data of the received positioning SIBs is same in a second cell and a first cell.Type: ApplicationFiled: April 4, 2019Publication date: April 16, 2020Inventors: Ritesh Shreevastav, Mattias Bergström, Tao Cui, Sven Ekemark, Fredrik Gunnarsson, Sara Modarres Razavi, Håkan Palm
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Patent number: 10595230Abstract: A method, system and device load balancing in a telecommunications network is provided where a selection of one or more User Equipments (UEs), to be relocated from a source cell to a target cell is based on a prediction value of the performance in the target cell. The prediction of the performance in the target cell is performed by mapping the current load of the target cell and a current detected signal of the target cell, into a perceived performance, perceived by UEs that have been relocated previously. After relocation of the UE the perceived performance in the target cell is measured and fed back by the target cell radio base station (RBS) to the source cell RBS, and used for updating the predicted performance value.Type: GrantFiled: August 30, 2017Date of Patent: March 17, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sven Ekemark, Håkan Eriksson, Lena Melin
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Patent number: 10264497Abstract: Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method in the UE comprises receiving (501) a configuration message from the target base station via the source base station, configuring (502) the UE based on the received configuration message from the target base station by searching (503) for a second field in an information element of the received configuration message. The presence/non-presence or a value of the second field is indicative of how to manage a configured first functionality associated with an optical first field, wherein the configured first functionality may not be supported by the target base station.Type: GrantFiled: February 2, 2018Date of Patent: April 16, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Janne Peisa, Tao Cui, Ingrid Nordstrand, Mats Sågfors, Sven Ekemark
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Publication number: 20180249475Abstract: There is provided mechanisms for determining frequency location of a primary cell (PCell) for a wireless device in a carrier aggregation supported communications network having access to a group of low frequency bands and a group of high frequency bands. A method is performed by a network node. The method comprises acquiring an uplink load level for the group of low frequency bands. The method comprises acquiring a pathloss level between a wireless device served by the communications network and the network node. The method comprises selecting, from the acquired uplink load level and pathloss level, which one of the group of low frequency bands and the group of high frequency bands to place the frequency location of the PCell for the wireless device.Type: ApplicationFiled: September 8, 2015Publication date: August 30, 2018Inventors: Fredric KRONESTEDT, Sven EKEMARK, Magnus LUNDEVALL, Jacob ÖSTERLING
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Publication number: 20180184342Abstract: Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method the UE comprises receiving (501) a configuration message from the target base station via the source base station, configuring (502) the UE based on the received configuration message from the target base station by searching (503) for a second field in an information element of the received configuration message. The presence/non-presence or a value of the second field is indicative of how to mange a configured first functionality associated with an optical first field, wherein the configured first functionality may not be supported by the target base station.Type: ApplicationFiled: February 2, 2018Publication date: June 28, 2018Inventors: Janne Peisa, Tao Cui, Ingrid Nordstrand, Mats Sagfors, Sven Ekemark
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Patent number: 9936432Abstract: The present disclosure concerns movements, such as handovers, of user equipments (UEs) 120a-e from one radio cell 130a to another radio cell 130b. Disclosed herein are methods as well radio network nodes 110a, 110b. A radio network node 110a, 110b may, for example, select the most suitable UE(s) 20a-e to move from a source radio cell 130a to a target radio cell 130b in case the traffic load in the source radio cell 130a is below or equal to the traffic load of the target radio cell 130b. Hereby it is made possible to improve the resource utilization.Type: GrantFiled: January 11, 2013Date of Patent: April 3, 2018Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Samuel Axelsson, Rasmus Axén, Sven Ekemark, Olof Axel Granberg, Walter Müller, Parisa Pakniat
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Patent number: 9924420Abstract: Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method in the UE comprises receiving (501) a configuration message from the target base station via the source base station, configuring (502) the UE based on the received configuration message from the target base station by searching (503) for a second field in an information element of the received configuration message. The presence/non-presence or a value of the second field is indicative of how to manage a configured first functionality associated with an optional first field, wherein the configured first functionality may not be supported by the target base station.Type: GrantFiled: December 20, 2016Date of Patent: March 20, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Janne Peisa, Tao Cui, Ingrid Nordstrand, Mats Sågfors, Sven Ekemark
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Patent number: 9924492Abstract: A method for determining a priority of a mobile subscriber in a cellular network. The method is performed in a radio network node and comprises the steps of: obtaining a temporary mobile subscriber identity, TMSI, associated with a priority affecting event; storing the TMSI associated with the event, as at least part of an indication of priority; receiving a connection request from a wireless terminal of the mobile subscriber, the connection request comprising a TMSI; and determining a priority of the wireless terminal based on whether the TMSI of the connection request matches a stored TMSI or not.Type: GrantFiled: June 30, 2014Date of Patent: March 20, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sven Ekemark, Tomas Brännlund, Magnus Hurd, Lena Melin, Agnes Rensfelt, Martin Skarve, Mikael Söderström
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Publication number: 20170367011Abstract: A method, system and device load balancing in a telecommunications network is provided where a selection of one or more User Equipments (UEs), to be relocated from a source cell to a target cell is based on a prediction value of the performance in the target cell. The prediction of the performance in the target cell is performed by mapping the current load of the target cell and a current detected signal of the target cell, into a perceived performance, perceived by UEs that have been relocated previously. After relocation of the UE the perceived performance in the target cell is measured and fed back by the target cell radio base station (RBS) to the source cell RBS, and used for updating the predicted performance value.Type: ApplicationFiled: August 30, 2017Publication date: December 21, 2017Inventors: Sven Ekemark, Håkan Eriksson, Lena Melin
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Patent number: 9848368Abstract: A method in a first network node for handling traffic tracing of a user equipment. The first network node is comprised in a first Radio Access Technology, RAT, system. The first network node starts a handover procedure to handover the user equipment from the first RAT system to a second RAT system. The user equipment has an active traffic tracing ongoing in the first RAT system. The traffic tracing relates to tracing associated with communication between the user equipment and the first RAT system. The first network node sends a message to a second network node in the second RAT system. The message is sent directly to the second network node or via one or more intermediate network nodes. The message comprises one or more parameters relating to the ongoing traffic tracing of the user equipment. The parameters define when the traffic tracing is to continue in the second RAT system.Type: GrantFiled: April 25, 2014Date of Patent: December 19, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Andreas Olsson, Diana Andrei, Sven Ekemark, Robert Petersen, Per-Daniel Stålnacke
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Patent number: 9820188Abstract: A method, system and device load balancing in a telecommunications network is provided where the selection of the one or more User Equipment (UE) 150, to be relocated from a source cell 112 to a target cell 122, is based on a prediction value of the performance in the target cell. The prediction of the performance in the target cell is performed by mapping the current load of the target cell and a current detected signal of the target cell, into a perceived performance, perceived by UEs that have been relocated previously. After relocation of the UE the perceived performance in the target cell is measured actually and fed back 312 by the target cell RBS 120 to the source cell RBS 110, and used for updating the predicted performance value.Type: GrantFiled: October 2, 2014Date of Patent: November 14, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sven Ekemark, Håkan Eriksson, Lena Melin
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Publication number: 20170223608Abstract: The present disclosure relates to a method performed in a network node for classifying a neighbour cell. The method comprises the steps of obtaining (P1) from a plurality of wireless devices information related to a power level for a source cell and a power level for at least one neighbour cell, and determining (P5) whether the at least one neighbour cell is a small cell, based on the obtained information. The present disclosure further relates to such network node.Type: ApplicationFiled: March 21, 2014Publication date: August 3, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Parisa PAKNIAT, Sven EKEMARK, Daniel HENRIKSSON, Markus KELLER
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Publication number: 20170164325Abstract: A method for determining a priority of a mobile subscriber in a cellular network. The method is performed in a radio network node and comprises the steps of: obtaining a temporary mobile subscriber identity, TMSI, associated with a priority affecting event; storing the TMSI associated with the event, as at least part of an indication of priority; receiving a connection request from a wireless terminal of the mobile subscriber, the connection request comprising a TMSI; and determining a priority of the wireless terminal based on whether the TMSI of the connection request matches a stored TMSI or not.Type: ApplicationFiled: June 30, 2014Publication date: June 8, 2017Inventors: Sven EKEMARK, Tomas BRÄNNLUND, Magnus HURD, Lena MELIN, Agnes RENSFELT, Martin SKARVE, Mikael SÖDERSTRÖM
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Publication number: 20170118677Abstract: The present disclosure relates to methods and network nodes of supporting load distribution from a source cell to a target cell in a wireless network using carrier aggregation. When performed in the source network node, the method comprises determining (S31) source traffic load and carrier aggregation properties of the cell source cell and receiving (S32), from a target network node, a load report comprising target traffic load and carrier aggregation properties for the target cell. Carrier aggregation capabilities of user equipments, UEs, served by the source cell are retrieved in the source network node. One or more UEs served by the source cell are selected (S33) for moving to the target cell based on a combination of the retrieved UE carrier aggregation capabilities and the carrier aggregation properties of the source cell and target cell.Type: ApplicationFiled: April 4, 2014Publication date: April 27, 2017Inventors: Håkan AXELSSON, Samuel AXELSSON, Sven EKEMARK
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Publication number: 20170105151Abstract: Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method in the UE comprises receiving (501) a configuration message from the target base station via the source base station, configuring (502) the UE based on the received configuration message from the target base station by searching (503) for a second field in an information element of the received configuration message. The presence /non-presence or a value of the second field is indicative of how to manage a configured first functionality associated with an optional first field, wherein the configured first functionality may not be supported by the target base station.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Janne PEISA, Tao CUI, Ingrid NORDSTRAND, Mats SÅGFORS, Sven EKEMARK
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Publication number: 20170048776Abstract: A method in a first network node for handling traffic tracing of a user equipment. The first network node is comprised in a first Radio Access Technology, RAT, system. The first network node starts a handover procedure to handover the user equipment from the first RAT system to a second RAT system. The user equipment has an active traffic tracing ongoing in the first RAT system. The traffic tracing relates to tracing associated with communication between the user equipment and the first RAT system. The first network node sends a message to a second network node in the second RAT system. The message is sent directly to the second network node or via one or more intermediate network nodes. The message comprises one or more parameters relating to the ongoing traffic tracing of the user equipment. The parameters define when the traffic tracing is to continue in the second RAT system.Type: ApplicationFiled: April 25, 2014Publication date: February 16, 2017Inventors: Andreas OLSSON, Diana ANDREI, Sven EKEMARK, Robert PETERSEN, Per-Daniel STÅLNACKE