Patents by Inventor Lena MELIN
Lena MELIN 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: 20230074994Abstract: According to an aspect, there is provided a method performed by a first core network, CN, node in a telecommunication network. The telecommunication network comprises a first radio access network, RAN, node that operates according to a first radio access technology, RAT. An update to a first security configuration between a wireless device and the first RAN node is required. The method comprises, after receiving a request from the wireless device for an emergency session so that the wireless device can establish an emergency call, initiating (901) an Emergency Service Fallback procedure to a second RAT.Type: ApplicationFiled: December 18, 2020Publication date: March 9, 2023Inventors: Nianshan Shi, Prajwol Kumar Nakarmi, Lena Melin
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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: 10477442Abstract: A method performed by a source network node comprises requesting a wireless device to perform measurement(s) on a possible target network node and the source network node; and obtaining a measurement report from the wireless device comprising performed measurement(s) on a possible target network node, the performed measurements indicating received signal strength for signal(s) received from the possible target node. The method further comprises determining a first normalised SINR associated with the received signal strength as measured by the wireless device for signals received from the source network node; and providing, to the possible target network node, the determined first normalised SINR associated with the received signal strength for the source network node and the received signal strength of the possible target network node as received in the measurement report from the wireless device.Type: GrantFiled: September 21, 2015Date of Patent: November 12, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lena Melin, Walter Müller
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Publication number: 20180317145Abstract: A source network node and a target network node, as well as respective methods performed thereby, for providing mobility to wireless devices are provided. The source and target network nodes are operable in a wireless communication network. The method performed by the source network node comprises, when an uplink received signal quality from the wireless device does not meet a quality threshold, transmitting scheduling information related to an upcoming uplink transmission of the wireless device to one or more potential target network nodes. The method further comprises obtaining respective uplink signal quality for the respective potential target network node(s), and triggering handover to a target network node if a handover criterion is fulfilled based on the respective uplink signal quality.Type: ApplicationFiled: October 27, 2015Publication date: November 1, 2018Inventors: Lena Melin, Anders Christensson
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Publication number: 20180262958Abstract: A method performed by a source network node comprises requesting a wireless device to perform measurement(s) on a possible target network node and the source network node; and obtaining a measurement report from the wireless device comprising performed measurement(s) on a possible target network node, the performed measurements indicating received signal strength for signal(s) received from the possible target node. The method further comprises determining a first normalised SINR associated with the received signal strength as measured by the wireless device for signals received from the source network node; and providing, to the possible target network node, the determined first normalised SINR associated with the received signal strength for the source network node and the received signal strength of the possible target network node as received in the measurement report from the wireless device.Type: ApplicationFiled: September 21, 2015Publication date: September 13, 2018Inventors: Lena MELIN, Walter MÜLLER
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Patent number: 9992719Abstract: There is provided a method, performed by a network node (e.g. an RNC), for detecting a neighbor cell relation between different radio access technologies in a cellular communication network. The method comprises the step (S1) of triggering a User Equipment, UE, served in a first cell of a first radio access technology (e.g. WCDMA cell) under the control of the network node (e.g. RNC), to perform a cell selection process by initiating a connection release with redirection to a second radio access technology (e.g. GSM), causing the UE to select a second cell of the second radio access technology (e.g. GSM cell). The method also comprises the step (S2) of receiving information representing the identity of the second cell selected by the UE (e.g. CGI), and the step (S3) of identifying, based on the received information representing the identity of the second cell and information representing the identity of the first cell, a neighbor cell relation between the first cell and the second cell.Type: GrantFiled: June 18, 2014Date of Patent: June 5, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Lena Melin, Sofia Brismar
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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: 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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Patent number: 9736739Abstract: A procedure is disclosed where a user equipment (UE) 10 can share information (with e.g. radio access network (RAN) nodes 20, 30) about its cell mobility attempts (e.g. redirection successes/failures). This information can subsequently be utilized by the various RAN nodes 20, 30 when making subsequent, i.e. future, cell mobility decisions. Hereby it is made possible to improve cell mobility decisions, such as redirection or handover, by the various RAN nodes 20, 30.Type: GrantFiled: August 13, 2013Date of Patent: August 15, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lena Melin, Håkan Axelsson, Rasmus Axén
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Publication number: 20170188276Abstract: There is provided a method, performed by a network node (e.g. an RNC), for detecting a neighbor cell relation between different radio access technologies in a cellular communication network. The method comprises the step (S1) of triggering a User Equipment, UE, served in a first cell of a first radio access technology (e.g. WCDMA cell) under the control of the network node (e.g. RNC), to perform a cell selection process by initiating a connection release with redirection to a second radio access technology (e.g. GSM), causing the UE to select a second cell of the second radio access technology (e.g. GSM cell). The method also comprises the step (S2) of receiving information representing the identity of the second cell selected by the UE (e.g. CGI), and the step (S3) of identifying, based on the received information representing the identity of the second cell and information representing the identity of the first cell, a neighbor cell relation between the first cell and the second cell.Type: ApplicationFiled: June 18, 2014Publication date: June 29, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lena MELIN, Sofia BRISMAR
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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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Patent number: 9622118Abstract: A Mobile Switching Center, MSC, an Access Transfer Control Function, ATCF, an Access Transfer Gateway, ATGW and respective methods therein are provided for performing a packet-switched, PS, to circuit-switched, CS, handover of a User Equipment, UE, are provided. When the UE is handed over from a PS communication network to a CS communication network, the MSC requests the ATCF controlling the ATGW to bi-casting to both the CS communication network and the PS communication network, and forwarding speech data from the UE to a remote terminal with which the UE is communicating during the PS to CS handover procedure. Once the UE is handed over, the bi-casting and the forwarding are terminated.Type: GrantFiled: November 16, 2012Date of Patent: April 11, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)Inventors: Lena Melin, Oliver Speks
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Patent number: 9578577Abstract: A method in a legacy access node for selecting a suitable RAN, of a plurality of RANs for a LTE UE, capable of both PS and CS sessions in a global communication network. The method comprises connecting the UE to a legacy RAN via a radio interface module and then establishing a PS session with the connected UE. The bandwidth that the UE currently is consuming is monitored and compared with a predefined bandwidth threshold. If the consumed bandwidth exceeds the predefined bandwidth threshold an attempt will be made to trigger transferring of the UE from the current legacy RAN to the LTE RAN. A corresponding method is disclosed in a eNodeB where the attempt to trigger transferring of the UE from the LTE RAN to the legacy RAN is made if the consumed bandwidth falls below the predefined threshold. Related legacy access nodes and eNodeBs perform the methods.Type: GrantFiled: May 2, 2011Date of Patent: February 21, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Henrik André-Jönsson, Rasmus Axén, Lena Melin
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Patent number: 9578569Abstract: A network node (16) of a first radio access network is configured to transfer a user equipment (11) from the first radio access network to a second radio access network, wherein the second radio access network has a different radio access technology, RAT, than the first radio access network. The transfer is initiated when the network node receives an indication of an inactive period in an ongoing packet-switched data session from the user equipment, and the network node transfers the user equipment to the second radio access network as a result of said indication.Type: GrantFiled: July 22, 2011Date of Patent: February 21, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Henrik André-Jönsson, Lena Melin
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Publication number: 20160277968Abstract: 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: ApplicationFiled: October 2, 2014Publication date: September 22, 2016Inventors: Sven Ekemark, Håkan Eriksson, Lena Melin
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Patent number: 9445314Abstract: The disclosure relates to a method 10 for radio access bearer establishment performed in a wireless device 8 of a communication system 1. The communication system 1 comprises a network node 4 configured to provide radio access bearers to the wireless device 8. The method 10 comprises detecting 11 a need for a circuit switched service and a packet switched service during a communication session, and indicating 12, to the network node 4, a need for a circuit switched radio access bearer towards a circuit switched core network 3 providing the circuit switched service and for a packet switched radio access bearer towards a packet switched core network 2 providing the packet switched service.Type: GrantFiled: July 19, 2012Date of Patent: September 13, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSSONInventors: Lena Melin, Paulson Angelo Vijay Silveris
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Publication number: 20150296422Abstract: A Mobile Switching Centre, MSC, an Access Transfer Control Function, ATCF, an Access Transfer Gateway, ATGW and respective methods therein are provided for performing a packet-switched, PS, to circuit-switched, CS, handover of a User Equipment, UE, are provided. When the UE is handed over from a PS communication network to a CS communication network, the MSC requests the ATCF controlling the ATGW to bi-casting to both the CS communication network and the PS communication network, and forwarding speech data from the UE to a remote terminal with which the UE is communicating during the PS to CS handover procedure. Once the UE is handed over, the bi-casting and the forwarding are terminated.Type: ApplicationFiled: November 16, 2012Publication date: October 15, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Lena Melin, Oliver Speks
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Publication number: 20150282018Abstract: A procedure is disclosed where a user equipment (UE) 10 can share information (with e.g. radio access network (RAN) nodes 20, 30) about its cell mobility attempts (e.g. redirection successes/failures). This information can subsequently be utilized by the various RAN nodes 20, 30 when making subsequent, i.e. future, cell mobility decisions. Hereby it is made possible to improve cell mobility decisions, such as redirection or handover, by the various RAN nodes 20, 30.Type: ApplicationFiled: August 13, 2013Publication date: October 1, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Lena Melin, Håkan Axelsson, Rasmus Axén
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Patent number: 9119116Abstract: Network nodes in a source and a target communication system, and methods therein for supporting hand over to the target communication system, of a mobile terminal supporting Packet Switched-to-Circuit Switched, PS-to-CS, hand over. The method in the source communication system comprises, when requesting resources for hand over of a mobile terminal engaged in a conversational call to a target node in the target communication system, signaling a first request for PS resources to the target communication system, indicating a bearer B, used for the conversational call, and further signaling a second request for CS resources to the target communication system, indicating the bearer B. Thereby, the target communication system is enabled to decide whether a PS-to-CS HO or a PSHO of the bearer B should be performed.Type: GrantFiled: March 23, 2012Date of Patent: August 25, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Henrik André-Jönsson, Lena Melin