Patents by Inventor Jonas B. Karlsson
Jonas B. Karlsson 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: 11128322Abstract: There is presented mechanisms for providing information for determining beamforming weights or decoding user data for terminal devices. A method is performed by an RE of an access node. The RE has an interface to an REC of the access node. The method comprises obtaining information from the terminal devices to be used by the REC for determining the beamforming weights or decoding the user data. The method comprises selecting, according to a selection criterion, a part of the information to be provided to the REC in order for the REC to determine the beamforming weights or decode the user data based on the selected part of the information. The method comprises providing the selected part of the information to the REC over the interface.Type: GrantFiled: December 4, 2020Date of Patent: September 21, 2021Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jacob Österling, Fredrik Huss, Jonas B. Karlsson, Oskar Mauritz, Christer Östberg, Jan Roxbergh, Alex Stephenne
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Patent number: 11044755Abstract: A method for use in a first node in a wireless access communication system (100). According to the method, the first node controls traffic to and from users, UEs, within a certain area in the system, a cell, and the first node is equipped with a plurality of transmit antennas. The first node can employ a variety of multi antenna transmit modes for downlink transmissions, i.e. transmissions to the UEs, and the first node can carry out a so called Random Access (RA) procedure with UEs which do not have a dedicated uplink resource, i.e. a resource to the eNodeB. According to the method, one and the same downlink multi antenna transmit mode is used by the first node during the RA procedure.Type: GrantFiled: June 19, 2018Date of Patent: June 22, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Publication number: 20210091795Abstract: There is presented mechanisms for providing information for determining beamforming weights or decoding user data for terminal devices. A method is performed by an RE of an access node. The RE has an interface to an REC of the access node. The method comprises obtaining information from the terminal devices to be used by the REC for determining the beamforming weights or decoding the user data. The method comprises selecting, according to a selection criterion, a part of the information to be provided to the REC in order for the REC to determine the beamforming weights or decode the user data based on the selected part of the information. The method comprises providing the selected part of the information to the REC over the interface.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Inventors: Jacob Österling, Fredrik Huss, Jonas B. Karlsson, Oskar Mauritz, Christer Östberg, Jan Roxbergh, Alex Stephenne
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Publication number: 20210076430Abstract: A method for use in a first node in a wireless access communication system. According to the method, the first node controls traffic to and from users, UEs, within a certain area in the system, a cell, and the first node is equipped with a plurality of transmit antennas. The first node can employ a variety of multi antenna transmit modes for downlink transmissions, i.e. transmissions to the UEs, and the first node can carry out a so called Random Access (RA) procedure with UEs which do not have a dedicated uplink resource, i.e. a resource to the eNodeB. According to the method, one and the same downlink multi antenna transmit mode is used by the first node during the RA procedure.Type: ApplicationFiled: November 17, 2020Publication date: March 11, 2021Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Publication number: 20180302931Abstract: A method for use in a first node in a wireless access communication system (100). According to the method, the first node controls traffic to and from users, UEs, within a certain area in the system, a cell, and the first node is equipped with a plurality of transmit antennas. The first node can employ a variety of multi antenna transmit modes for downlink transmissions, i.e. transmissions to the UEs, and the first node can carry out a so called Random Access (RA) procedure with UEs which do not have a dedicated uplink resource, i.e. a resource to the eNodeB. According to the method, one and the same downlink multi antenna transmit mode is used by the first node during the RA procedure.Type: ApplicationFiled: June 19, 2018Publication date: October 18, 2018Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Patent number: 10014923Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: GrantFiled: July 15, 2016Date of Patent: July 3, 2018Assignee: OPTIS CELLULAR TECHNOLOGY, LLCInventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Patent number: 10015822Abstract: Disclosed is a method for use in a first node in a wireless access communication system. According to the method, the first node controls traffic to and from users, UEs, within a certain area in the system, a cell, and the first node is equipped with a plurality of transmit antennas. The first node can employ a variety of multi antenna transmit modes for down link transmissions, i.e. transmissions to the UEs, and the first node can carry out a so called Random Access (RA) procedure with UEs which do not have a dedicated up link resource, i.e. a resource to the eNodeB. According to the method, one and the same down link multi antenna transmit mode is used by the first node during the RA procedure.Type: GrantFiled: April 30, 2013Date of Patent: July 3, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Publication number: 20160329944Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: ApplicationFiled: July 15, 2016Publication date: November 10, 2016Inventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Patent number: 9397731Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: GrantFiled: November 21, 2014Date of Patent: July 19, 2016Assignee: OPTIS CELLULAR TECHNOLOGY, LLCInventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Publication number: 20150080005Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: ApplicationFiled: November 21, 2014Publication date: March 19, 2015Inventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Patent number: 8948290Abstract: The present invention relates to a method and arrangement for symbol mapping in wireless communication systems utilizing OFDM transmission technology in combination with advanced coding schemes. In the method according to the present invention, adapted for use in a wireless communication system utilizing OFDM transmission technology, an OFDM grid is defined by at least a first dimension and a second dimensions from the dimensions time, frequency or space. The advanced coding scheme, for example Alamouti coding, outputs symbols that are related via the coding. At least some of the symbols, defining a code related symbol group should experience identical, or at least very similar, radio channels. According to one embodiment of the present invention, symbols from the same code related symbol group is placed as close together in the OFDM grid as possible.Type: GrantFiled: October 31, 2013Date of Patent: February 3, 2015Assignee: Unwired Planet, LLCInventor: Jonas B. Karlsson
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Patent number: 8897834Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: GrantFiled: November 9, 2011Date of Patent: November 25, 2014Assignee: Optis Cellular Technology, LLCInventors: Karl J. Molnar, Kambiz Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Publication number: 20140056377Abstract: The present invention relates to a method and arrangement for symbol mapping in wireless communication systems utilizing OFDM transmission technology in combination with advanced coding schemes. In the method according to the present invention, adapted for use in a wireless communication system utilising OFDM transmission technology, an OFDM grid is defined by at least a first dimension and a second dimensions from the dimensions time, frequency or space. The advanced coding scheme, for example Alamouti coding, outputs symbols that are related via the coding. At least some of the symbols, defining a code related symbol group should experience identical, or at least very similar, radio channels. According to one embodiment of the present invention, symbols from the same code related symbol group is placed as close together in the OFDM grid as possible.Type: ApplicationFiled: October 31, 2013Publication date: February 27, 2014Applicant: Unwired Planet, LLCInventor: Jonas B. KARLSSON
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Publication number: 20130235834Abstract: Disclosed is a method for use in a first node in a wireless access communication system. According to the method, the first node controls traffic to and from users, UEs, within a certain area in the system, a cell, and the first node is equipped with a plurality of transmit antennas. The first node can employ a variety of multi antenna transmit modes for down link transmissions, i.e. transmissions to the UEs, and the first node can carry out a so called Random Access (RA) procedure with UEs which do not have a dedicated up link resource, i.e. a resource to the eNodeB. According to the method, one and the same down link multi antenna transmit mode is used by the first node during the RA procedure.Type: ApplicationFiled: April 30, 2013Publication date: September 12, 2013Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Patent number: 8457647Abstract: The invention discloses a method (400) for use in a first node (110) in a wireless access communication system (100). According to the method, the first node controls (405) traffic to and from users, UEs (120), within a certain area in the system, a cell, and the first node is equipped (410) with a plurality of transmit antennas (111,113). The first node can employ (415) a variety of multi antenna transmit modes for down link transmissions, i.e. transmissions to the UEs, and the first node can carry (420) out a so called Random Access (RA) procedure with UEs which do not have a dedicated up link resource, i.e. a resource to the eNodeB. According to the method, one and the same down link multi antenna transmit mode is used by the first node during the RA procedure.Type: GrantFiled: January 10, 2008Date of Patent: June 4, 2013Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Tobias Tynderfeldt, Magnus Johansson, Jonas B. Karlsson
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Patent number: 8401485Abstract: A device system, computer medium and method for calibrating at least one impairment of a signal transmitted from a transmitting unit to a receiving unit, the method including receiving at the receiving unit at least two signals transmitted from the transmitting unit, estimating at the receiving unit, based on the received at least two signals, at least one parameter associated with transmit chain links between the transmitting unit and corresponding antennas of the transmitting unit, collecting the at least one parameter in a measurement report at the receiving unit, and transmitting the measurement report from the receiving unit for correcting the at least one impairment based on the at least one parameter.Type: GrantFiled: February 6, 2008Date of Patent: March 19, 2013Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: George Jöngren, David Astely, Bo Göransson, Jonas B. Karlsson
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Patent number: 8295869Abstract: A method and apparatus of improving the performance of a mobile radio system (100) comprising at least one radio device (105, 120) having at least two transmission equipments (114) adapted to transmit radio signals within a frequency band is disclosed. The method comprises deriving (220) a relative time delay of the at least two transmission equipments based on at least two sub-band transmit weight vectors, wherein a sub-band transmit weight vector comprises weight vectors applicable to the at least two transmission equipments, respectively, in a sub-band of the frequency band.Type: GrantFiled: February 5, 2007Date of Patent: October 23, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jonas B. Karlsson, David Astely, Bo Göransson
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Publication number: 20120058767Abstract: A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: ApplicationFiled: November 9, 2011Publication date: March 8, 2012Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Karl Molnar, Kambiz C. Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Patent number: 8068872Abstract: A mobile phone is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations should be used for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas should be used for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.Type: GrantFiled: October 4, 2006Date of Patent: November 29, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Karl Molnar, Kambiz C. Zangi, Leonid Krasny, Stephen Grant, Jonas B. Karlsson
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Patent number: 7773991Abstract: A control signal data processing load associated with mobile terminals currently having a connection with a radio access network is regulated. The connection is terminated when the control processing cost for maintaining the connection exceeds the benefit of maintaining the connection to achieve shorter access latency. A connection activity level is determined for current connections between multiple mobile terminals and a base station. A current data processing load in the base station associated with the mobile terminal control signaling is calculated. A decision is made whether one or more of the mobile terminals is likely to request a handover of its respective connection to a neighboring base station. Based on the current load, the likelihood of requesting handover of the respective connection, and the connection activity level determined for the respective connection, a decision is made whether to terminate the respective connection.Type: GrantFiled: April 2, 2007Date of Patent: August 10, 2010Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Kristian J. Osterling, Peter Andersson, Jonas B. Karlsson