Patents by Inventor Tomas Sundin
Tomas Sundin 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: 11265816Abstract: Independent power-control procedures per beam-pair link (BPL). In one embodiment, such a power-control procedure comprises: 1) an open-loop part based on the estimated DL path loss for the active and back-up (or “non-active”) BPLs in the UE and 2) a closed-loop part where the UL power-control adjustment commands are transmitted from the network and accumulated in the UE independently per active BPL. The UL transmit power is determined from the power-control procedure associated with the active BPL scheduled for transmission.Type: GrantFiled: December 14, 2017Date of Patent: March 1, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Tomas Sundin, Håkan Andersson, Mattias Frenne, Johan Furuskog, Johan Kåredal, John Skördeman, Niclas Wiberg, Qiang Zhang
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Patent number: 11201650Abstract: A method performed by a wireless device for handling two or more beamformed communication links initialized with one or more network nodes in a wireless communications network is provided. The wireless device determines at least one compatibility state for the two or more beamformed communication links based on one or more current radio signal characteristics at the wireless device for the two or more beamformed communication links, wherein the at least one compatibility state indicates if the wireless device currently is able to simultaneously receive transmission beams of the two or more beamformed communication links or not. The wireless device transmits information indicating the at least one determined compatibility state for the two or more beamformed communication links to at least one of the one or more network nodes. A wireless device as well as a network node and method of operation thereof are also disclosed.Type: GrantFiled: December 19, 2017Date of Patent: December 14, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Furuskog, Håkan Andersson, Johan Kåredal, John Skördeman, Mattias Frenne, Niclas Wiberg, Qiang Zhang, Tomas Sundin
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Patent number: 10743363Abstract: A wireless device (120) and a method for initiating a procedure for re-establishing a capability of communication in a wireless communications network (100). The wireless device (120) and a radio network node (110) operate in the wireless communications network (100). The wireless device (120) receives, from the radio network node (110), a first signal that is specific for the wireless device (120). In response to that a certain time has elapsed since a latest receipt of the first signal, the wireless device (120) initiates a procedure for re-establishing a capability of communication between the wireless device (120) and the radio network node (110) using a beam pair.Type: GrantFiled: November 30, 2017Date of Patent: August 11, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Niclas Wiberg, Håkan Andersson, Mattias Frenne, Johan Furuskog, Johan Kåredal, John Skördeman, Tomas Sundin, Qiang Zhang
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Patent number: 10666346Abstract: Embodiments herein relate to a method performed by a wireless device (10) for managing beam-formed communication in a wireless communication network (1), wherein the wireless device (10) is configured to handle separate directional device beams at the wireless device (10). The wireless device (10) forms an active set for a first device beam out of the separate directional device beams of the wireless device by selecting one or more first network beams out of a plurality of separate directional network beams of the wireless communication network (1). The one or more first network beams are selected based on received signal strength or quality, and the active set is to be used for transmission or reception of data. The wireless device selects a first network beam in the active set as a preferred network beam for transmission or reception of data.Type: GrantFiled: November 11, 2016Date of Patent: May 26, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Andreas Bergström, Håkan Andersson, Johan Furuskog, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Publication number: 20200084820Abstract: A wireless device (120) and a method for initiating a procedure for re-establishing a capability of communication in a wireless communications network (100). The wireless device (120) and a radio network node (110) operate in the wireless communications network (100). The wireless device (120) receives, from the radio network node (110), a first signal that is specific for the wireless device (120). In response to that a certain time has elapsed since a latest receipt of the first signal, the wireless device (120) initiates a procedure for re-establishing a capability of communication between the wireless device (120) and the radio network node (110) using a beam pair.Type: ApplicationFiled: November 30, 2017Publication date: March 12, 2020Inventors: Niclas Wiberg, Hakan Anderson, Mattias Frenne, Johan Furuskog, Johan Karedal, John Skordeman, Tomas Sundin
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Publication number: 20190387478Abstract: Independent power-control procedures per beam-pair link (BPL). In one embodiment, such a power-control procedure comprises: 1) an open-loop part based on the estimated DL path loss for the active and back-up (or “non-active”) BPLs in the UE and 2) a closed-loop part where the UL power-control adjustment commands are transmitted from the network and accumulated in the UE independently per active BPL. The UL transmit power is determined from the power-control procedure associated with the active BPL scheduled for transmission.Type: ApplicationFiled: December 14, 2017Publication date: December 19, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tomas SUNDIN, Håkan ANDERSSON, Mattias FRENNE, Johan FURUSKOG, Johan KAREDAL, John SKÖRDEMAN, Niclas WIBERG, Qiang ZHANG
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Patent number: 10484076Abstract: A network node (100), a wireless terminal (102) and methods therein, for supporting beam tracking in the wireless terminal (102) when a selected network beam (Bc) and a selected terminal beam (Tc) are used. The network node (100) identifies a set of candidate network beams (B) having spatial characteristics similar to the selected network beam (Bc), and signals the candidate network beams to the wireless terminal (102). When the network node (100) transmits beam reference signals in the candidate network beams using beam sweeping, the wireless terminal (102) measures received power using different candidate terminal beams (T) and estimates received power of combinations of beam reference signal and candidate terminal beam that have not been measured, based on the measured combinations of beam reference signal and candidate terminal beam.Type: GrantFiled: February 6, 2018Date of Patent: November 19, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Publication number: 20190312628Abstract: Embodiments herein relate to a method performed by a wireless device (10) for managing beam-formed communication in a wireless communication network (1), wherein the wireless device (10) is configured to handle separate directional device beams at the wireless device (10). The wireless device (10) forms an active set for a first device beam out of the separate directional device beams of the wireless device by selecting one or more first network beams out of a plurality of separate directional network beams of the wireless communication network (1). The one or more first network beams are selected based on received signal strength or quality, and the active set is to be used for transmission or reception of data. The wireless device selects a first network beam in the active set as a preferred network beam for transmission or reception of data.Type: ApplicationFiled: November 11, 2016Publication date: October 10, 2019Inventors: Andreas Bergström, Håkan Andersson, Johan Furuskog, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Patent number: 10341005Abstract: A Network Node (NN) 208 and a method therein for beam selection. When an upcoming ability to serve a Wireless Device (WD) 210 using a current NN beam is predicted to be lost based on historic data, the NN selects an upcoming NN beam out of one or more candidate NN beams that are able to serve the WD when the NN has lost ability to serve the WD using the current NN beam. The NN configures a dedicated Beam Reference Signal (BRS) for the upcoming NN beam, which is to be detected in beam selection by the WD when the NN loses ability to serve the wireless device using the current NN beam. By means of the current NN beam, the NN transmits, to the WD, a configuration of the dedicated BRS. Further, by means of the upcoming NN beam, the NN transmits, to the WD, the dedicated BRS.Type: GrantFiled: June 29, 2017Date of Patent: July 2, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Publication number: 20190074879Abstract: A method performed by a wireless device for handling two or more beamformed communication links initialized with one or more network nodes in a wireless communications network is provided. The wireless device determines at least one compatibility state for the two or more beamformed communication links based on one or more current radio signal characteristics at the wireless device for the two or more beamformed communication links, wherein the at least one compatibility state indicates if the wireless device currently is able to simultaneously receive transmission beams of the two or more beamformed communication links or not. The wireless device transmits information indicating the at least one determined compatibility state for the two or more beamformed communication links to at least one of the one or more network nodes. A wireless device as well as a network node and method of operation thereof are also disclosed.Type: ApplicationFiled: December 19, 2017Publication date: March 7, 2019Inventors: Johan Furuskog, Håkan Andersson, Johan Kåredal, John Skördeman, Mattias Frenne, Niclas Wiberg, Qiang Zhang, Tomas Sundin
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Publication number: 20190052341Abstract: A network node (100), a wireless terminal (102) and methods therein, for supporting beam tracking in the wireless terminal (102) when a selected network beam (Bc) and a selected terminal beam (Tc) are used. The network node (100) identifies a set of candidate network beams (B) having spatial characteristics similar to the selected network beam (Bc), and signals the candidate network beams to the wireless terminal (102). When the network node (100) transmits beam reference signals in the candidate network beams using beam sweeping, the wireless terminal (102) measures received power using different candidate terminal beams (T) and estimates received power of combinations of beam reference signal and candidate terminal beam that have not been measured, based on the measured combinations of beam reference signal and candidate terminal beam.Type: ApplicationFiled: February 6, 2018Publication date: February 14, 2019Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Patent number: 10200996Abstract: The invention relates to an integrated antenna node for use in wireless communication in a communication system, the wireless communication involving uplink and downlink physical-layer processing. The integrated antenna node is adapted to perform, for at least one set of corresponding uplink and downlink physical-layer processing functions, only the uplink physical-layer processing functions or the corresponding downlink physical-layer processing functions. The invention further relates to a main node, a radio base station, computer programs and computer program products.Type: GrantFiled: December 19, 2016Date of Patent: February 5, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Tomas Sundin, Hàkan Andersson, Bo Göransson
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Publication number: 20190007122Abstract: A Network Node (NN) 208 and a method therein for beam selection. When an upcoming ability to serve a Wireless Device (WD) 210 using a current NN beam is predicted to be lost based on historic data, the NN selects an upcoming NN beam out of one or more candidate NN beams that are able to serve the WD when the NN has lost ability to serve the WD using the current NN beam. The NN configures a dedicated Beam Reference Signal (BRS) for the upcoming NN beam, which is to be detected in beam selection by the WD when the NN loses ability to serve the wireless device using the current NN beam. By means of the current NN beam, the NN transmits, to the WD, a configuration of the dedicated BRS. Further, by means of the upcoming NN beam, the NN transmits, to the WD, the dedicated BRS.Type: ApplicationFiled: June 29, 2017Publication date: January 3, 2019Inventors: Johan Furuskog, Håkan Andersson, Mattias Frenne, Johan Kåredal, John Skördeman, Tomas Sundin, Niclas Wiberg, Qiang Zhang
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Patent number: 9942772Abstract: Example embodiments presented herein are directed towards a wireless device and base station, and corresponding method therein, for dynamic synchronization of communications for the wireless device. The wireless device is configured to receive communications on first and second carriers, and wherein the first carrier is configured for synchronous communications and the second carrier is configured for shared communications. The dynamic synchronization is of communications on the second carrier to a predefined frame structure on a first carrier.Type: GrantFiled: March 17, 2015Date of Patent: April 10, 2018Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Damanjit Singh, Tomas Sundin, Daniel Figueiredo
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Publication number: 20170099657Abstract: The invention relates to an integrated antenna node for use in wireless communication in a communication system, the wireless communication involving uplink and downlink physical-layer processing. The integrated antenna node is adapted to perform, for at least one set of corresponding uplink and downlink physical-layer processing functions, only the uplink physical-layer processing functions or the corresponding downlink physical-layer processing functions. The invention further relates to a main node, a radio base station, computer programs and computer program products.Type: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tomas Sundin, Håkan Andersson, Bo Göransson
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Patent number: 9549436Abstract: The invention relates to an integrated antenna node (22) for use in wireless communication in a communication system (20), the wireless communication involving uplink and downlink physical-layer processing. The integrated antenna node (22) is adapted to perform, for at least one set of corresponding uplink and downlink physical-layer processing functions, only the uplink physical-layer processing functions or the corresponding downlink physical-layer processing functions. The invention further relates to a main node (21), a radio base station (28), computer programs and computer program products.Type: GrantFiled: December 15, 2011Date of Patent: January 17, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICCSON (publ)Inventors: Tomas Sundin, Hakan Andersson, Bo Goransson
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Publication number: 20160277935Abstract: Example embodiments presented herein are directed towards a wireless device and base station, and corresponding method therein, for dynamic synchronization of communications for the wireless device. The wireless device is configured to receive communications on the first and second carriers, and wherein the first carrier is configured for synchronous communications and the second carrier is configured for shared communications. The dynamic synchronization is of communications on the second carrier to a predefined frame structure on a first carrier.Type: ApplicationFiled: March 17, 2015Publication date: September 22, 2016Inventors: Damanjit SINGH, Tomas SUNDIN, Daniel FIGUEIREDO
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Patent number: 9425878Abstract: A base station is described herein which implements a method that uses different aspects of reported channel quality information (CQI) measurements to help select the “best” transmit antenna(s) on which to transmit control channel information to mobile terminal(s). The base station can also transmit a format indicator to communicate the assigned control channel transmit antenna(s) and the assigned data transmit antenna(s) to the mobile terminal(s).Type: GrantFiled: January 6, 2014Date of Patent: August 23, 2016Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Karl J. Molnar, David Astely, Tomas Sundin
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Publication number: 20140328308Abstract: The invention relates to an integrated antenna node (22) for use in wireless communication in a communication system (20), the wireless communication involving uplink and downlink physical-layer processing. The integrated antenna node (22) is adapted to perform, for at least one set of corresponding uplink and downlink physical-layer processing functions, only the uplink physical-layer processing functions or the corresponding downlink physical-layer processing functions. The invention further relates to a main node (21), a radio base station (28), computer programs and computer program products.Type: ApplicationFiled: December 15, 2011Publication date: November 6, 2014Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Tomas Sundin, Hakan Andersson, Bo Goransson
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Publication number: 20140219190Abstract: A base station is described herein which implements a method that uses different aspects of reported channel quality information (CQI) measurements to help select the “best” transmit antenna(s) on which to transmit control channel information to mobile terminal(s). The base station can also transmit a format indicator to communicate the assigned control channel transmit antenna(s) and the assigned data transmit antenna(s) to the mobile terminal(s).Type: ApplicationFiled: January 6, 2014Publication date: August 7, 2014Applicant: Telefonaktiebolaget L M Ericsson (PUBL)Inventors: Karl J. Molnar, David Astely, Tomas Sundin