Patents by Inventor Thomas Walldeen
Thomas Walldeen 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: 20230269641Abstract: A wireless communication system comprises a wireless node for communication with wireless devices camping on a first cell, the node including a local control unit controlling communication between the system and the wireless devices, the system further comprising a first signalling control unit and a second signalling control unit), both provided for handling signalling of a first group of cells at least including the first cell and each providing a different cell identity for this cell, wherein the first signalling control unit acts as a primary signalling control unit for the first group of cells and the second signalling control unit acts as a secondary signalling control unit for the first group of cells into a backup signalling control unit for the primary signalling control unit.Type: ApplicationFiled: June 15, 2020Publication date: August 24, 2023Inventors: Thomas WALLDEEN, Fredrik JONSSON, Fredrik SONNEVI, Stefan JOHANSSON
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Publication number: 20230199481Abstract: An example of this disclosure provides a method (500) performed by a base station control unit (CU). The method comprises receiving (502) a request from a base station distributed unit (DU) to store information for a first plurality of cells to be served by the base station DU. The method also comprises sending (504) a response to the base station DU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.Type: ApplicationFiled: May 20, 2021Publication date: June 22, 2023Inventors: Angelo Centonza, Ioanna Pappa, Patrik Jonasson, Thomas Walldeen
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Publication number: 20220369174Abstract: The present disclosure relates generally to communications, and more particularly to communication methods and related devices and nodes for control plane traffic management. Among other things, the disclosure presents a method performed by a central unit (CU) of a network node for coordination of control plane traffic management during a communication device reconfiguration in a telecommunications network. The method may, e.g., comprise receiving information from a distributed unit (DU) of the network node alerting the CU to reset a packet data convergence protocol (PDCP) sequence number of control plane traffic signaled from the communication device as a consequence of an event in the telecommunications network; and responsive to receiving the information, resetting the PDCP sequence number of the control plane traffic signaled from the communication device.Type: ApplicationFiled: October 28, 2020Publication date: November 17, 2022Inventors: Angelo CENTONZA, Thomas WALLDEEN, Fredrik HULTIN, Ioanna PAPPA
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Publication number: 20220210647Abstract: A network node (700) of a radio access network (RAN) of a wireless communication network (10) provides user plane security by establishing a secure tunnel between first and second tunnel endpoints (160, 180, 370, 195, 220, 230) that will handle respective protocol layers of a same protocol stack for a Data Radio Bearer (DRB) (330, 340, 350, 360) that is dedicated to user plane traffic and has yet to be established. Establishing the secure tunnel comprises exchanging an inner Internet Protocol (IP) address and an outer IP address of each of the endpoints (160, 180, 370, 195, 220, 230) between the endpoints (160, 180, 370, 195, 220, 230).Type: ApplicationFiled: May 4, 2020Publication date: June 30, 2022Inventors: Angelo Centonza, Maximilian Popescu, Ioanna Pappa, Thomas Walldeen, Martin Israelsson, Alexander Vesely
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Publication number: 20220183089Abstract: The invention refers to a method performed by a control plane, CP, functional part (415) of a base station, the method comprising establishing a transport network layer, TNL, association with a network function (440B) that supports a plurality of user plane, UP, functional parts of first base station; transmitting to the network function a request message (701) comprising information for selecting a first UP functional part among the plurality of UP functional parts; and receiving, in response to the request message, a response message (703) transmitted by the network function, wherein the response message comprises an identifier of the first UP functional part. The invention further refers to corresponding methods performed by the UP functional part, the network function, and to a corresponding base station.Type: ApplicationFiled: February 13, 2020Publication date: June 9, 2022Applicant: Telefonakitebolaget LM Ericsson (publ)Inventors: Thomas Walldeen, Stefan Eng, Torbjörn Örtengen
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Publication number: 20220116794Abstract: The invention relates to a method performed by a network function capable of supporting at least a user plane, UP, functional part of a base station (440B), comprises establishing a transport network layer, TNL, association with a control plane, CP, functional part of the base station; receiving a request message (501) from the CP functional part of the base station (415), wherein the request message comprises an identifier of the base station; creating a UP functional part of the base station using the identifier of the base station; and transmitting a response message (505) to the CP functional part of the base station, wherein the response message comprises an identifier of the created UP functional part of the base station; the invention further relates to a method performed by a CP functional part of a base station; and to corresponding network node adapted to perform above-described methods.Type: ApplicationFiled: February 13, 2020Publication date: April 14, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Thomas Walldeen, Stefan Eng, Torbjörn Örtengren
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Publication number: 20210385701Abstract: It is herein disclosed a wireless device, first and second radio network nodes and methods performed therein for communication. A method performed by a first radio network node for determining a global identity of a second radio network node which is a neighbour of the first radio network node is provided. The method comprises one or more of: receiving length information which specifies a length of the global ID of the second radio network node, from a wireless device which is served by the first radio network node; and determining the global ID of the second radio network node based on the length information.Type: ApplicationFiled: October 30, 2019Publication date: December 9, 2021Inventors: Maximilian POPESCU, Pär GUSTAVSSON, Thomas WALLDEEN
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Patent number: 10993199Abstract: A method by a UE is provided to handle communication in a network, wherein the UE is capable of receiving a registration area configuration including area identifiers associated with different cells of different RATs. The UE receives, from a network node, a first mobile identifier and a second mobile identifier in a message during a transition of states of the UE, wherein the first mobile identifier is of a first length and the second mobile identifier is of a second length different than the first length. Furthermore, the UE uses the first mobile identifier to resume to a first network node of a first RAT in the registration area configuration of the UE, and the second mobile identifier to resume to a second network node of a second RAT in the registration area configuration of the UE.Type: GrantFiled: April 3, 2019Date of Patent: April 27, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Christofer Lindheimer, Malik Wahaj Arshad, Gunnar Mildh, Thomas Walldeen
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Patent number: 10939306Abstract: A method and radio access node for controlling beam transmission from a radio access node. The method identifies a number of user equipment (UEs) associated with a same beam set and groups the identified UEs into one or more corresponding groups. The method assigns a same discontinuous reception (DRX) phase to the UEs in each corresponding group, and coordinates transmission from the beam set to UEs in the one or more corresponding groups based on the assigned DRX phase.Type: GrantFiled: December 23, 2015Date of Patent: March 2, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Walter Müller, Rasmus Axén, Thomas Walldeen, Patrik Karlsson
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Publication number: 20200288423Abstract: A method by a UE is provided to handle communication in a network, wherein the UE is capable of receiving a registration area configuration including area identifiers associated with different cells of different RATs. The UE receives, from a network node, a first mobile identifier and a second mobile identifier in a message during a transition of states of the UE, wherein the first mobile identifier is of a first length and the second mobile identifier is of a second length different than the first length. Furthermore, the UE uses the first mobile identifier to resume to a first network node of a first RAT in the registration area configuration of the UE, and the second mobile identifier to resume to a second network node of a second RAT in the registration area configuration of the UE.Type: ApplicationFiled: April 3, 2019Publication date: September 10, 2020Inventors: Christofer LINDHEIMER, Malik Wahaj ARSHAD, Gunnar MILDH, Thomas WALLDEEN
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Patent number: 10757633Abstract: The present disclosure relates to a network node, a network control node, a wireless device and corresponding methods for optimized broadcasting of system information messages in a wireless network. The disclosure proposes a method, performed in a wireless device, of assessing system information perception capability in a wireless network that is arranged to broadcast system information on at least two frequency carriers. The method comprises receiving (S10) broadcasted system information on the at least two frequency carriers. The method also comprises determining (S12), using the received broadcasted system information, frequency carrier identity correlated information for each of the at least two frequency carriers. The method further comprises reporting (S14) receipt of the broadcasted system information on the at least two frequency carriers, wherein the report includes the frequency carrier identity correlated information.Type: GrantFiled: October 21, 2015Date of Patent: August 25, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Patrik Karlsson, Ulf Eric Andretzky, Rasmus Axén, Tomas Nylander, Per-Daniel Stålnacke, Thomas Walldeen
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Patent number: 10660150Abstract: A system and method is introduced for flexible user equipment (“UE”) identification. In one embodiment, the method includes providing a first message from a user equipment (110) to a radio access node (120) to resume a passive user equipment context. The message includes a UE identifier (400) having a flag (410) indicating if the user equipment (110) is resuming connectivity to the radio access node (120) and a first local UE identifier (420) for the radio access node (120).Type: GrantFiled: February 3, 2017Date of Patent: May 19, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Paul Schliwa-Bertling, Håkan Axelsson, Stefan Johansson, Thomas Walldeen, Magnus Stattin
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Patent number: 10517023Abstract: Support of mobility for a communication device (120) being served in a serving beam (115a) transmitted by a first network node (110) comprised in a wireless communication network (100). The first network node (110) and the communication device (120) obtains (301a, 302; 701, 901) a first information set comprising predetermined identifiers identifying reference signals, respectively. The first network node (110) maintains (310; 904) a third information set that associates one or more candidate beams (115b, 116a-c), other than the serving beam (115a), with one or more predetermined identifiers of the first information set, which one or more predetermined identifiers identify reference signals that are being transmitted in said one or more candidate beams (115, 116a-c).Type: GrantFiled: September 29, 2016Date of Patent: December 24, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Håkan Axelsson, Mehdi Amirijoo, Rasmus Axén, Patrik Karlsson, Walter Müller, Christer Östberg, Henrik Ronkainen, Thomas Walldeen
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Publication number: 20190380080Abstract: Method performed by a first core network node (101). The first core network node (101) sends (301) first information relating to a wireless device (140) handled by the first core network node (101), to a second core network node (102). The sending (301) is performed in the absence of a request from the second core network node (102) to obtain the first information. The sending (301) of the first information initiates registration of the wireless device (140) with the second core network node (102). A method performed by the second core network node (102) receiving the first information is also disclosed, as well as a method performed by a radio network node (110) sending (504) a third message enabling registration of the wireless device (140) with the second core network node (102). A method performed by the wireless device (140) receiving the third message and accepting the registration is also described.Type: ApplicationFiled: December 20, 2017Publication date: December 12, 2019Inventors: Paul Schliwa-Bertling, Markus Drevö, Thomas Walldeen, Peter Werner
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Patent number: 10327224Abstract: A wireless device comprises a processing means operative to determine if a validity time for a paging attempt identifier number is running, wherein the paging attempt identifier number is in a received paging message. When the validity time for the paging attempt identifier number is not running, form a paging response message. When the validity time is running, the processing means compare the paging attempt identifier number of the paging message with a stored paging attempt identifier number, and form a paging response message when the received paging attempt identifier number is different from the stored paging attempt identifier number or ignore the received paging message when the received paging attempt identifier number equals the stored paging attempt identifier number. The wireless device further comprises a transmitter arranged to transmit the formed paging response message.Type: GrantFiled: November 12, 2014Date of Patent: June 18, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Thomas Walldeen, Paul Schliwa-Bertling
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Patent number: 10278082Abstract: Network nodes (102, 104), control node (100) and methods therein, for enabling establishment of a neighbor relation between a first network node (102) and a second network node (104) in a wireless network. The control node (100) sends (1:1) or distributes, to network nodes in the network including the first network node (702), a set of reference signals reserved for neighbor relation establishment. The second network node (104) transmits (1:3) one of the reserved reference signals which is then detected by a wireless device (D1) being served by the first network node (102) which then receives (1:4), from the wireless device (D1), a measurement report indicating the detected reference signal that is recognized by the first network node (102) as belonging to the set of reserved reference signals.Type: GrantFiled: October 6, 2016Date of Patent: April 30, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mehdi Amirijoo, Håkan Axelsson, Rasmus Axén, Fredrik Gunnarsson, Patrik Karlsson, Walter Müller, Christer Östberg, Pradeepa Ramachandra, Henrik Ronkainen, Thomas Walldeen
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Publication number: 20190045573Abstract: A system and method is introduced for flexible user equipment (“UE”) identification. In one embodiment, the method includes providing a first message from a user equipment (110) to a radio access node (120) to resume a passive user equipment context. The message includes a UE identifier (400) having a flag (410) indicating if the user equipment (110) is resuming connectivity to the radio access node (120) and a first local UE identifier (420) for the radio access node (120).Type: ApplicationFiled: February 3, 2017Publication date: February 7, 2019Inventors: Paul SCHLIWA-BERTLING, Håkan AXELSSON, Stefan JOHANSSON, Thomas WALLDEEN, Magnus STATTIN
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Publication number: 20190007844Abstract: A method and radio access node for controlling beam transmission from a radio access node. The method identifies a number of user equipment (UEs) associated with a same beam set and groups the identified UEs into one or more corresponding groups. The method assigns a same discontinuous reception (DRX) phase to the UEs in each corresponding group, and coordinates transmission from the beam set to UEs in the one or more corresponding groups based on the assigned DRX phase.Type: ApplicationFiled: December 23, 2015Publication date: January 3, 2019Inventors: Walter MÜLLER, Rasmus AXÉN, Thomas WALLDEEN, Patrik KARLSSON
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Publication number: 20180332508Abstract: Support of mobility for a communication device (120) being served in a serving beam (115a) transmitted by a first network node (110) comprised in a wireless communication network (100). The first network node (110) and the communication device (120) obtains (301a, 302; 701, 901) a first information set comprising predetermined identifiers identifying reference signals, respectively. The first network node (110) maintains (310; 904) a third information set that associates one or more candidate beams (115b, 116 a-c), other than the serving beam (115a), with one or more predetermined identifiers of the first information set, which one or more predetermined identifiers identify reference signals that are being transmitted in said one or more candidate beams (115, 116a-c).Type: ApplicationFiled: September 29, 2016Publication date: November 15, 2018Inventors: Häkan Axelsson, Mehdi Amirijoo, Rasmus Axén, Patrik Karlsson, Walter Müller, Christer Östberg, Henrik Ronkainen, Thomas Walldeen
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Publication number: 20180288735Abstract: A wireless device comprises a processing means operative to determine if a validity time for a paging attempt identifier number is running, wherein the paging attempt identifier number is in a received paging message. When the validity time for the paging attempt identifier number is not running, form a paging response message. When the validity time is running, the processing means compare the paging attempt identifier number of the paging message with a stored paging attempt identifier number, and form a paging response message when the received paging attempt identifier number is different from the stored paging attempt identifier number or ignore the received paging message when the received paging attempt identifier number equals the stored paging attempt identifier number. The wireless device further comprises a transmitter arranged to transmit the formed paging response message.Type: ApplicationFiled: November 12, 2014Publication date: October 4, 2018Inventors: Thomas WALLDEEN, Paul SCHLIWA-BERTLING