Patents by Inventor Tobias Ahlström
Tobias Ahlström 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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Patent number: 12096353Abstract: Methods performed by a network node having a first transmission mode configuration for a first cell in a radio access network may be provided. A second transmission mode configuration for a second cell may be obtained. A mobile terminal may be steered to the first or second cell based on which cell has the transmission mode configuration for supporting a higher data throughput. A method performed by a control node in a radio access network also may be provided. A first and a second transmission mode configuration may be determined for a candidate cell and a serving cell, respectively. A serving node may be configured with the first transmission mode configuration. A mobile terminal may be steered to the candidate cell or the serving cell based on which cell has the transmission mode configuration for supporting a higher data throughput.Type: GrantFiled: April 16, 2019Date of Patent: September 17, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Hasibur Rahman, Tobias Ahlström
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Publication number: 20230422127Abstract: A method performed by a first network node for determining one or more cells to serve a wireless device connected to the first network node in a wireless communications network is provided. In a control connection between the first network node and a second network node, the first network node receives (1002) from the second network node, current load information for a third cell candidate, wherein the third cell candidate is served by a third network node. The first network node determines (1003) one or more cells to serve the wireless device based on the current load information of the third cell candidate.Type: ApplicationFiled: November 16, 2020Publication date: December 28, 2023Inventors: Hasibur Rahman, Tobias Ahlström, Stefan Engström
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Patent number: 11582620Abstract: The present disclosure relates to radio network communication. In one of its aspects, the disclosure presented herein concerns a method for retrieving configuration information from a target Base Station (BS) in an E-UTRA New Radio-Dual Connectivity (EN-DC) wireless communication system. The method is performed by a source en-gNB. According to the method, a request message requesting configuration information from the target BS is transmitted to a first proxy evolved Node B (eNB). The request message comprises identifiers identifying the source en-gNB and the target BS, respectively.Type: GrantFiled: June 10, 2019Date of Patent: February 14, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Daniel Henriksson, Tobias Ahlström, Erik Eriksson, Peter Werner
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Patent number: 11516767Abstract: A method performed by a network node for locating a User Equipment (UE) is provided. The network node, the at least one portable network node and UE operate in a wireless communication network. The network node configures (204) the at least one portable network node to broadcast reference signals. The broadcasted reference signals trigger the UE to subsequently measure and report the quality of the respective reference signals to the network node. The network node then receives (205) subsequent measurement reports from the UE. Each measurement report comprises a current quality value of the reference signals sent by the respective at least one portable network node.Type: GrantFiled: October 23, 2018Date of Patent: November 29, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Alberto Gonzalez Escudero, Tobias Ahlström
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Publication number: 20220225229Abstract: Methods performed by a network node having a first transmission mode configuration for a first cell in a radio access network may be provided. A second transmission mode configuration for a second cell may be obtained. A mobile terminal may be steered to the first or second cell based on which cell has the transmission mode configuration for supporting a higher data throughput. A method performed by a control node in a radio access network also may be provided. A first and a second transmission mode configuration may be determined for a candidate cell and a serving cell, respectively. A serving node may be configured with the first transmission mode configuration. A mobile terminal may be steered to the candidate cell or the serving cell based on which cell has the transmission mode configuration for supporting a higher data throughput.Type: ApplicationFiled: April 16, 2019Publication date: July 14, 2022Inventors: Hasibur RAHMAN, Tobias AHLSTRÖM
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Patent number: 11343727Abstract: According to an aspect, a wireless device (111) receives, from a network node (101), a measurement object (125) that includes a list (127) of one or more cells for which to report a cell global identifier, CGI, or a list (129) of one or more cells for which not to report the CGI. Alternatively, the wireless device (111) may receive, from a network node (101), a measurement reporting configuration information element or a measurement identity information element of a measurement configuration that includes a list (127) of one or more cells for which to report a CGI or a list (129) of one or more cells for which not to report a CGI.Type: GrantFiled: November 16, 2018Date of Patent: May 24, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tobias Ahlström, Icaro L. J. da Silva, Helka-Liina Määttanen, Parisa Pakniat, Pradeepa Ramachandra, Kristina Zetterberg
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Publication number: 20210314908Abstract: A method performed by a network node for locating a User Equipment (UE) is provided. The network node, the at least one portable network node and UE operate in a wireless communication network. The network node configures (204) the at least one portable network node to broadcast reference signals. The broadcasted reference signals trigger the UE to subsequently measure and report the quality of the respective reference signals to the network node. The network node then receives (205) subsequent measurement reports from the UE. Each measurement report comprises a current quality value of the reference signals sent by the respective at least one portable network node.Type: ApplicationFiled: October 23, 2018Publication date: October 7, 2021Inventors: Alberto Gonzalez Escudero, Tobias Ahlström
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Publication number: 20210306871Abstract: The present disclosure relates to radio network communication. In one of its aspects, the disclosure presented herein concerns a method for retrieving configuration information from a target Base Station (BS) in an E-UTRA New Radio-Dual Connectivity (EN-DC) wireless communication system. The method is performed by a source en-gNB. According to the method, a request message requesting configuration information from the target BS is transmitted to a first proxy evolved Node B (eNB). The request message comprises identifiers identifying the source en-gNB and the target BS, respectively.Type: ApplicationFiled: June 10, 2019Publication date: September 30, 2021Inventors: Daniel Henriksson, Tobias Ahlström, Erik Eriksson, Peter Werner
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Publication number: 20210037435Abstract: According to an aspect, a wireless device (111) receives, from a network node (101), a measurement object (125) that includes a list (127) of one or more cells for which to report a cell global identifier, CGI, or a list (129) of one or more cells for which not to report the CGI. Alternatively, the wireless device (111) may receive, from a network node (101), a measurement reporting configuration information element or a measurement identity information element of a measurement configuration that includes a list (127) of one or more cells for which to report a CGI or a list (129) of one or more cells for which not to report a CGI.Type: ApplicationFiled: November 16, 2018Publication date: February 4, 2021Inventors: Tobias Ahlström, Icaro L. J. da Silva, Helka-Liina Määttanen, Parisa Pakniat, Pradeepa Ramachandra, Kristina Zetterberg
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Patent number: 10820217Abstract: The invention describes a method for handling of cell identities, performed by a first radio node of a wireless communication network providing radio coverage to a first cell. The first radio node is connected to at least one second radio node providing radio coverage to a second cell. The first cell has been assigned a first cell identity, and each of the second cells has been assigned an individual cell identity. The method comprises: determining that the first cell identity is the same as the cell identity assigned to one of the second cells; triggering change of cell identity for the first cell from the first cell identity to a second cell identity that is not used for any of the second cells, and sending, to the at least one second radio node, information on the change of cell identity from the first cell identity to the second cell identity.Type: GrantFiled: October 28, 2016Date of Patent: October 27, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Daniel Henriksson, Tobias Ahlström, Stefan Engström
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Publication number: 20200092738Abstract: A wireless device (111) is configured to receive, from a network node (101), in a measurement reporting configuration information element (127) of a measurement configuration or a measurement identity information element (129) of a measurement configuration, an indication (128) of for which cell the wireless device (111) (111) is to report a cell global identifier, CGI. In embodiments in which the indication (128) is received in the measurement reporting configuration information element (127), for instance, the wireless device (111) may add a reporting configuration indicated by that information element to a list of reporting configurations at the wireless device (111), e.g., as opposed to updating an existing reporting configuration. Regardless, the wireless device (111) may also be configured to report a CGI for the cell indicated by the received indication (128).Type: ApplicationFiled: November 16, 2018Publication date: March 19, 2020Inventors: Tobias Ahlström, Icaro L. J. da Silva, Helka-Liina Määttanen, Parisa Pakniat, Kristina Zetterberg
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Publication number: 20190230530Abstract: Disclosed is a method for handling of cell identities, performed by a first radio node of a wireless communication network providing radio coverage to a first cell. The first radio node is connected to at least one second radio node providing radio coverage to a second cell. The first cell has been assigned a first cell identity, and each of the second cells has been assigned an individual cell identity. The method comprises: determining, based on information on the first cell identity and on the cell identities assigned to the second cells, that the first cell identity is the same as the cell identity assigned to one of the second cells; triggering change of cell identity for the first cell, based on the result of the determining, from the first cell identity to a second cell identity that is not used for any of the second cells, and sending, to the at least one second radio node, information on the change of cell identity from the first cell identity to the second cell identity.Type: ApplicationFiled: October 28, 2016Publication date: July 25, 2019Inventors: Daniel HENRIKSSON, Tobias AHLSTRÖM, Stefan ENGSTRÖM
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Patent number: 10222451Abstract: Disclosed is a method performed by a position calculation node (160) in a wireless communication network (100). The node (160) is arranged for improving accuracy when determining positions in the wireless communication network. The method comprises obtaining a signal transport time value for each of a plurality of different geographical UE positions (UE1, UE2, UE3), wherein the respective signal transport time value relates to the time it takes for a radio signal to travel between a first base station and one of the plurality of UE positions. The method further comprises obtaining a geographical position value for each of the plurality of different geographical UE positions, the position values being independent of the signal transport time values, and determining an actual geographical position for the first base station, based on the obtained signal transport time values, the obtained position values and a predefined geographical position for the first base station.Type: GrantFiled: December 4, 2014Date of Patent: March 5, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Daniel Henriksson, Tobias Ahlström, Kenneth Balck, Markus Drevö
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Patent number: 10097401Abstract: A technique of providing performance management (PM) data by a network element of a wireless network to an Operations and Maintenance, OAM, system to which the network element is connected. A method embodiment of the providing PM data to the OAM system to which the network element is connected, the PM data being related to one or more objects associated with the network element, includes determining, by the network element, whether at least one of the one or more objects is an unmirrored object, the unmirrored object being invisible to the OAM system. If at least one of the one or more objects is an unmirrored object, the method accumulates, by the network element, PM data of the at least one unmirrored object with PM data of further objects associated with the network element; and provides, by the network element, the accumulated PM data to the OAM system.Type: GrantFiled: July 1, 2014Date of Patent: October 9, 2018Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Stefan Engström, Tobias Ahlström
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Patent number: 9900836Abstract: A method in a radio network node for selecting a second SCell of a wireless device. The radio network node sends (201) data to a network node, upon a request to release the wireless device from a first connected state, in which the wireless device is connected to a first PCell and configured with a first SCell. The data indicates the first PCell and the first SCell. The radio network node retrieves (202) the sent data when the wireless device enters a second connected state. Then, the wireless device is connected to a second PCell. The radio network node compares (203) the second PCell with the first PCell and the first SCell. When the second PCell is the same as one of the first PCell and the first SCell, the radio network node selects (204) as the second SCell the other of the first SCell and the first PCell.Type: GrantFiled: March 14, 2014Date of Patent: February 20, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Rasmus Axén, Tobias Ahlström, Tobias Ljungström
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Publication number: 20170269190Abstract: Disclosed is a method performed by a position calculation node (160) in a wireless communication network (100). The node (160) is arranged for improving accuracy when determining positions in the wireless communication network. The method comprises obtaining a signal transport time value for each of a plurality of different geographical UE positions (UE1, UE2, UE3), wherein the respective signal transport time value relates to the time it takes for a radio signal to travel between a first base station and one of the plurality of UE positions. The method further comprises obtaining a geographical position value for each of the plurality of different geo-graphical UE positions, the position values being independent of the signal transport time values, and determining an actual geographical position for the first base station, based on the obtained signal transport time values, the obtained position values and a predefined geographical position for the first base station.Type: ApplicationFiled: December 4, 2014Publication date: September 21, 2017Inventors: Daniel Henriksson, Tobias Ahlström, Kenneth Balck, Markus Drevö
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Publication number: 20170127299Abstract: A method in a first radio network node for updating external cell information is provided. The external cell information relates to a first cell served by a second radio network node. The first radio network node determines that there is a need to update the external cell information. The first radio network node sends a first message to the second radio network node. The first message comprises a request for data representing information relating to the first cell. The first radio network node receives a second message from the second radio network node. The second message comprises the requested data. The first radio network node updates the external cell information based on the received data.Type: ApplicationFiled: June 17, 2014Publication date: May 4, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Stefan ENGSTRÖM, Tobias AHLSTRÖM
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Publication number: 20170099633Abstract: A method in a radio network node for selecting a second SCell of a wireless device. The radio network node sends (201) data to a network node, upon a request to release the wireless device from a first connected state, in which the wireless device is connected to a first PCell and configured with a first SCell. The data indicates the first PCell and the first SCell. The radio network node retrieves (202) the sent data when the wireless device enters a second connected state. Then, the wireless device is connected to a second PCell. The radio network node compares (203) the second PCell with the first PCell and the first SCell. When the second PCell is the same as one of the first PCell and the first SCell, the radio network node selects (204) as the second SCell the other of the first SCell and the first PCell.Type: ApplicationFiled: March 14, 2014Publication date: April 6, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Rasmus AXÉN, Tobias AHLSTRÖM, Tobias LJUNGSTRÖM
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Publication number: 20160269947Abstract: A wireless device for a cellular network comprises a receiver arranged to receive a request to report at least one second network cell suitable for handover, a processor arranged to determine the at least one second network cell suitable for handover among a set of available network cells and to form a response comprising a respective local cell identity associated with the at least one suitable second network cell, and a transmitter arranged to transmit the formed response. The processor is further arranged to determine a cell identity confusion risk involved for the set of available network cells based on information in the request and based on local cell identities associated with the set of available network cells, and measure a global cell identity for each at least one second network cell determined to be involved in a cell identity confusion risk.Type: ApplicationFiled: November 1, 2013Publication date: September 15, 2016Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Elisabeth HANSSON, Tobias AHLSTRÖM, Stefan ENGSTRÖM
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Patent number: 9398478Abstract: Embodiments herein relate to a method in a first radio base station (12) for enabling detection of a faulty antenna in a radio communications network. The radio communication network comprises the first radio base station (12) providing radio coverage in a first cell (14), and a second radio base station (13) providing radio coverage in a second cell (15). The first radio base station (12) receives, from at least one user equipment in the first cell (14), a first set of measurement reports over a first period of time. At least some measurement reports are indicating a cell relation between the first cell (14) and the second cell (15). The first radio base station (12) further forms reference statistics of the cell relation between the first cell (14) and the second cell (15) based on the first set of measurement reports. Furthermore, the first radio base station (12) receives, from at least one user equipment in the first cell (14), a second set of measurement reports over a second period of time.Type: GrantFiled: July 22, 2011Date of Patent: July 19, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tobias Ahlström, Petter Bergman