Patents by Inventor Torbjorn Wigren
Torbjorn Wigren 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: 12216224Abstract: A method for kinematic state estimation of a UE connected to a wireless communication network. The method comprises obtaining (S10) of measurement information related to a kinematic measurement concerning the UE. The kinematic measurement is achieved at a measuring time. The kinematic measurement belongs to a set of kinematic measurements. It is further determined (S20) whether the measurement information is consistent with a measurement prediction for the UE valid for the measuring time based on a kinematic state estimation of the UE. The kinematic state estimation is created using kinematic measurements of the set of kinematic measurements. If the measurement information is determined not to be consistent, the measurement information is discarded (S30). If the measurement information is determined to be consistent, the kinematic state estimation of the UE is updated (S31) with the measurement information.Type: GrantFiled: November 12, 2019Date of Patent: February 4, 2025Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Sholeh Yasini, Torbjörn Wigren
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Patent number: 12212385Abstract: According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: feedback a total momentary carrier power associated with a plurality of co-sited carriers for controlling a respective power of each of the plurality of co-sited carriers. Further, according to one or more embodiments, a method performed by a network node is provided. The method includes feeding back a total momentary carrier power associated with a plurality of co-sited carriers for controlling a respective power of each of the plurality of co-sited carriers.Type: GrantFiled: July 10, 2020Date of Patent: January 28, 2025Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Torbjörn Wigren, Shiguang Guo, Ken Huisman, Christer Törnevik
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Patent number: 12166721Abstract: A method for controlling acknowledgement signalling in a multi-point communication system comprises receiving (S10), in a wireless device, a data item over a first signalling path out of a plurality of possible signalling paths. Signalling path information associated with the received data item is obtained (S20). A transmission of an acknowledgement message for the data item is initiated (S40) to be performed over a second signalling path out of the plurality of possible signalling paths selected in dependence of the obtained signalling path information. Alternatively, or in combination, initiating of a transmission of an acknowledgement message comprising attaching of information of the identity of the second signalling path to the acknowledgement message. Methods, performed in a network node, assisting the wireless device are also disclosed. Devices for the methods are also presented.Type: GrantFiled: August 31, 2018Date of Patent: December 10, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Torbjörn Wigren, Ramon Delgado, Richard Middleton, Katrina Lau
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Patent number: 12143958Abstract: A method for state estimation of a UE connected to a wireless communication network, comprising obtaining (S1) of measurement information related to a 5 range-related measurement concerning a UE. The measurement information comprises data of the range-related measurement, a time at which the range-related measurement was performed, an identity of the UE and data enabling determination of a measuring position. The range-related measurement consists of data defining a distance between the UE and the measuring 10 position. A state estimation of the UE is performed (S2) based on the measurement information. Methods for propagating the measurement information through the network are also disclosed as well as network nodes performing such method.Type: GrantFiled: March 19, 2019Date of Patent: November 12, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Torbjörn Wigren, Sholeh Yasini, Iana Siomina
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Publication number: 20240357516Abstract: Systems and methods are disclosed for power assisted Radio Frequency (RF) Electric and Magnetic Field (EMF) average power control for a Radio Access Network (RAN) node of a cellular communications system. In one embodiment, a method of operation of a controller for a RAN node comprises computing an average total transmit power over a control period and computing an initial Physical Resource Block (PRB) limit for transmission of a Physical Downlink Shared Channel (PDSCH) for the cell based on a comparison of the computed average and a reference. The method further comprises determining whether power scaling is to be used, adjusting the initial PRB limit and providing the adjusted PRB limit and a power scaling indication to a scheduler associated to the cell if power scaling is to be used, and otherwise providing the initial PRB limit and an indication of no power scaling to the scheduler.Type: ApplicationFiled: June 17, 2021Publication date: October 24, 2024Inventors: Shiguang GUO, Torbjörn WIGREN
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Patent number: 12113731Abstract: There is provided mechanisms for multiplexed transmission of data packages towards a terminal device. A method is performed by a network node. The method comprises multiplexing, for the terminal device, at least one data package of a first service having a first QoS requirement with at least one of at least two duplicated data packages of a second service having a second QoS requirement, different from the first QoS requirement. The method comprises transmitting the multiplexed data packages towards the terminal device over at least two independent paths. The duplicated data packages are transmitted on mutually different ones of the at least two independent paths.Type: GrantFiled: October 16, 2019Date of Patent: October 8, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ying Sun, Torbjörn Wigren
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Patent number: 12108347Abstract: There is provided mechanisms for average EIRP control of at least two radio signal paths. A method is performed by a coordinating controller of a site that includes the at least two radio signal paths. The method includes obtaining, from a respective inner controller of each of the at least two radio signal paths, long-term 5 time averaged traffic related information for each of the at least two radio signal paths. The method includes determining control information for each of the at least two radio signal paths based on the long-term time averaged traffic related information, antenna gain information for each of the at least two radio signal paths, and a condition on total average EIRP for the site, and performing 10 individual average EIRP control of each of the at least two radio signal paths by providing the control information to each respective inner controller.Type: GrantFiled: September 10, 2019Date of Patent: October 1, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, Christer Törnevik
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Publication number: 20240314700Abstract: A method performed by a control device for controlling total average transmission power of a radio base station. The method comprises performing, for a current discrete time value, control of total average transmission power according to an average power control loop and subject to an upper threshold value. The total average transmission power is computed over an averaging time window T of a present value of momentary transmission power and N?1 preceding values. This is controlled to not exceed the threshold value by a resource threshold factor that limits the momentary transmission power and by for at least one future discrete time value less than, or equal to, t+T predicting a future value of the total average transmission power for a future assumed resource threshold factor. The method comprises gradually changing this factor as a function of a present state of the control loop.Type: ApplicationFiled: June 23, 2021Publication date: September 19, 2024Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn WIGREN, Diana YAMALOVA
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Patent number: 12096381Abstract: Embodiments of a method in a network node for controlling a radio transmitter. In each one of a plurality of consecutive control steps spanning a predetermined control window, determining a first limit representing a number of physical resource blocks, PRBs, that can be scheduled in each one of a plurality of consecutive future slots of a current control step, based at least in part on an allowable average output power of the radio transmitter. The control window comprises a plurality of control steps, and each control step comprises a plurality of slots. When the determined first limit is less than or equal to a pre-configured second limit representing a number of PRBs that can be scheduled in a single slot, scheduling PRBs in a proportion of the plurality of consecutive future slots of the current control step, the proportion being calculated such that an averaged fraction of scheduled PRBs in the current control step is less than or equal to the first limit.Type: GrantFiled: October 7, 2019Date of Patent: September 17, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Torbjörn Wigren, Shiguang Guo, Ken Huisman
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Patent number: 12082141Abstract: According to a first aspect, there is provided a method for delay alignment in a multi-point communication system. The method comprises determining of a respective reference value of round trip time for n+1 signalling paths in the multi-point communication system, where n>0. The determination is performed using n reference values of round trip time skews between a respective signalling path and a single reference signalling path of the n+1 signalling paths, and a reference value of a sum of round trip times over all of the n+1 signalling paths as exclusive input values. The respective reference values of round trip times are limited within a predetermined allowed interval for round trip times. The method further comprises performing of a separate, preferably globally stable, control of data signalling in each single one of the n+1 signalling paths based on the respective reference values of round trip times.Type: GrantFiled: August 31, 2018Date of Patent: September 3, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, Ramon Delgado, Richard Middleton, Katrina Lau
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Patent number: 12034644Abstract: The disclosure provides, inter alia, a method performed by a wireless receiving node for receiving a data stream from one or more wireless transmitting nodes, the data stream comprising a sequence of data items. The method comprising: receiving an indication of an algorithm from a wireless transmitting node of the one or more wireless transmitting nodes; receiving a plurality of data packets from the one or more wireless transmitting nodes, each data packet comprising respective duplicate copies of data items belonging to the data stream; and utilizing the algorithm to select, based on respective times at which the data packets are received, for each position in the sequence, one or more of the duplicate copies of data items for reconstruction of the data stream.Type: GrantFiled: September 10, 2020Date of Patent: July 9, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Torbjörn Wigren, Ramon Delgado, Katrina Lau, Richard Middleton, Ying Sun
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Patent number: 12028138Abstract: An Advanced Antenna System (AAS) receiver and related methods are provided. According to one aspect an AAS receiver comprises a digital processing block of a Radio Frequency Integrated Circuit (RFIC). The digital processing block comprises an interface for communicating with a Central Unit (CU), and a plurality of Antenna Signal Processing Blocks (ASPBs), each receiving a digitized receive signal from a respective antenna element of an antenna array. Each ASPB comprises one or more receivers, each of which receives and processes the signal from the respective antenna element. Some receivers within the ASPB beamform the respective processed signal to produce one or more data streams to be sent to the CU. Other receivers within the ASPB provide the respective processed signal to a processing block that buffers the processed signal and sends it to the CU at a later time, e.g., when traffic to the CU is relatively lower.Type: GrantFiled: May 8, 2020Date of Patent: July 2, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Magnus Nilsson, Magnus Malmberg, Jonas Karlsson, Torbjörn Wigren, Bo Göransson, Joakim Ahlgren
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Patent number: 12028826Abstract: Embodiments include methods for managing a bidirectional measurement for an uplink/downlink pair of links between one or more first nodes and one or more second nodes in a wireless network. Methods include obtaining a transmit timing of a first signal on a first link of the pair during a first time resource, obtaining a receive timing of a second signal on a second link of the pair during a second time resource, and determining the bidirectional measurement based on the obtained transmit timing and obtained receive timing. In this arrangement, at least one of the following applies: the first and second links are between one first node and two respective second nodes; at least one of the first link and the second link are associated with a non-serving carrier frequency; and at least one of the first link and the second link are managed via one or more beams.Type: GrantFiled: January 19, 2020Date of Patent: July 2, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Iana Siomina, Torbjörn Wigren, Sholeh Yasini
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Patent number: 12015461Abstract: A method for adjusting beam gain in a radio network node. The method comprises: obtaining a channel estimate based on a reference signal transmitted by a target wireless device; applying a set of weights to the channel estimate to obtain a weighted channel estimate; and outputting the weighted channel estimate for use in determining beamforming weights to be applied to signals output to a plurality of antenna elements for transmission to the target wireless device, wherein the beamforming weights are determined as a function of the weighted channel estimate.Type: GrantFiled: January 9, 2020Date of Patent: June 18, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Torbjörn Wigren
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Patent number: 12010627Abstract: Mechanisms are provided for uplink power control of a terminal device. A method is performed in a network serving the terminal device. The method comprises estimating average total uplink transmit power for the terminal device. The method comprises determining a dynamic power threshold from the average total uplink transmit power according to a back-off power control loop. In the back-off power control loop, a setpoint value of total average transmission power is compared with a value of the estimated average total uplink transmit power. The method comprises setting a value of a power regulating parameter as function of the dynamic power threshold. The method comprises providing the value of the power regulating parameter to the terminal device for uplink power control of the terminal device.Type: GrantFiled: June 10, 2019Date of Patent: June 11, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, Petter Blomberg, Christer Törnevik, Mikael Wittberg
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Patent number: 12003294Abstract: Mechanisms for controlling average Equivalent Isotropic Radiated Power (EIRP) of a radio base station, in which a method is performed by a control device. The method comprises performing control of average EIRP of the radio base station according to a back-off power density control loop. In the back-off power density control loop, a beam width control parameter is used to vary the average EIRP generated by an antenna array of the radio base station, whereby the average EIRP is selectively reduced based on the beam width control parameter.Type: GrantFiled: April 2, 2019Date of Patent: June 4, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Torbjörn Wigren
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Patent number: 11991734Abstract: A method and a radio access device for performing the method for positioning of a target station (STA) by a radio access device. The method receives sounding feedback, from a target station (STA), for each of a plurality of subbands in response to sending a sounding signal, the sounding feedback comprising channel quality information for each subband of the plurality of subbands. The method calculates an angle-of-arrival (AoA) characteristic from the sounding feedback for at least a subset of the plurality of subbands and maps the AoA characteristics of the at least the subset of the plurality of subbands to a fingerprint in a fingerprint reference map. The method then determines the location of the target STA based on at least the fingerprint.Type: GrantFiled: June 1, 2021Date of Patent: May 21, 2024Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Torbjörn Wigren, Meng Wang
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Patent number: 11979851Abstract: A method for kinematic state estimation of a user equipment connected to a wireless communication network includes obtaining range rate measurement data defining a change rate of a distance between the user equipment and a range rate measuring position and obtaining range measurement data defining a distance between the user equipment and a range measuring position. A kinematic state estimation of the user equipment is performed based on at least the range rate measurement data and the range measurement data. The kinematic state estimation includes interacting-multiple-model filtering using three interacting models. The interacting-multiple-model filtering includes a three-dimensional constant velocity movement Wiener process, a three-dimensional constant acceleration movement Wiener process, and a three-dimensional constant position Wiener process.Type: GrantFiled: June 18, 2019Date of Patent: May 7, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sholeh Yasini, Richard Middleton, Torbjörn Wigren
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Patent number: 11974236Abstract: There is provided mechanisms for controlling total average transmission power of a radio base station. A method is performed by a control device. The method comprises performing, for a current discrete time value t, control of total average transmission power {Ptot}(t) of the radio base station according to a back-off power control loop. The total average transmission power {Ptot}(t) is computed over an averaging time window T of the present value of momentary transmission power and the N?1 values of momentary transmission power preceding the present value of momentary transmission power. The method comprises evaluating, for a future discrete time value less than, or equal to, t+T, the total average transmission power, assuming that values of momentary transmission power for all discrete time values from t up to t+T, starting at the next discrete time value t+1, is limited to a minimum value of said momentary transmission power.Type: GrantFiled: May 29, 2019Date of Patent: April 30, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Torbjörn Wigren, Shiguang Guo
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Patent number: 11960020Abstract: A method for sharing user equipment state estimates between nodes within a wireless communication network comprises initiating of transmission of at least one of obtained user equipment kinematic state estimate information and obtained user equipment type state estimate information to a receiving network node as a response to an obtained indication of a need for sharing user equipment state estimates. The obtained user equipment kinematic state estimate information comprising a latest kinematic state update time, as well as mode state vector estimates, mode covariance matrices and mode probabilities for at least one user equipment kinematic mode. The obtained user equipment type state estimate information comprising a latest type state update time and a type state probability estimate. A method for receiving and propagating the user equipment state estimates, and devices for both methods are also disclosed.Type: GrantFiled: April 26, 2019Date of Patent: April 16, 2024Assignee: Telefonaktiebolaget LM (publ)Inventors: Sholeh Yasini, Torbjörn Wigren, Patrik Persson