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: 11722967Abstract: Mechanisms for controlling total average transmission power of a radio base station over a fixed time period. A method is performed by a control device. The method comprises obtaining values of average total transmission power of at least one previous transmission from the radio base station. The method comprises determining a resource factor value from the value of average total transmission power and a setpoint value of the average total transmission power. The method comprises determining, based on the resource factor value, an action that restricts the amount of code-division multiple access (CDMA) resources to be used at least for a current transmission. The method comprises controlling the total average transmission power over the fixed time period by initiating the determined action at least for the current transmission.Type: GrantFiled: November 26, 2018Date of Patent: August 8, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, William Hogan
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Patent number: 11723014Abstract: A MIMO transmission point utilizes respective pluralities of beam weights to transmit corresponding pluralities of beams to each group of wireless devices, with respective numbers of resources being allocated for transmissions to each group of wireless devices. One method comprises: determining an average output power of the transmission point over a period of time in a first direction; comparing the average output power to an output power reference value; determining a fraction of a pool of available resources for the allocation of data to be transmitted by the transmission point as a function of the comparison; for each group of wireless devices, and determining beam gains in the first direction for each of the plurality of beams and weighting the number of resources allocated to the group of wireless devices according to the determined beam gains to obtain an effective number of resource blocks in the resources in the first direction.Type: GrantFiled: April 16, 2019Date of Patent: August 8, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Yali Pei, Torbjörn Wigren
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Publication number: 20230188188Abstract: 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: ApplicationFiled: May 8, 2020Publication date: June 15, 2023Inventors: Magnus Nilsson, Magnus Malmberg, Jonas Karlsson, Torbjörn Wigren, Bo Göransson, Joakim Ahlgren
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Publication number: 20230180139Abstract: There is provided a method at a network node equipped with an advance antenna system, AAS. The AAS comprises a plurality of antenna elements and one or more radio frequency integrated circuits, RFICs. Each of the one or more RFICs is associated with one or more of the plurality of antenna elements. The method comprising: capturing a plurality of signal samples of one or more signal chains of each of the one or more RFICs. Each of the one or more signal chains correspond to one or more of the plurality of antenna elements and a signal sample is associated with an envelope power level at an output of the respective signal chain; and summing at least a subset of the plurality of signal samples to obtain a short term average power value at the AAS.Type: ApplicationFiled: May 13, 2020Publication date: June 8, 2023Inventors: Johan Thorebäck, Magnus Nilsson, Torbjörn Wigren, Bo Göransson
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Publication number: 20230170973Abstract: 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 the signal from the respective antenna element, processes the received signal, and beamforms the processed signal to produce one or more data streams to be sent to the CU. Each ASPB also includes a narrowband receiver that processes an input signal (either the signal received from the respective antenna element or that signal after processing) to create a narrowband signal that is provided to the CU directly, without beamforming.Type: ApplicationFiled: May 8, 2020Publication date: June 1, 2023Inventors: Magnus Nilsson, Torsten John Carlsson, Peter Jakobsson, Jing Rao, Jonas Karlsson, Torbjörn Wigren, Bo Göransson
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Publication number: 20230156629Abstract: A mechanism for average Equivalent Isotropic Radiated Power (EIRP) control of at least two radio signal paths. A method is performed by a coordinating controller of a site. The site comprises the at least two radio signal paths. The method comprises obtaining, from inner controllers of the radio signal paths, information of long-term time averaged incoming and outgoing traffic per radio signal path. The method comprises determining a time varying reference value of average transmission power per radio signal path based on equalizing terms determined from the information of long-term time averaged incoming and outgoing traffic, antenna gain information per radio signal path, and a condition on total average EIRP for the site. The method comprises performing individual average EIRP control per radio signal path by providing to each respective inner controller, the time varying reference value determined for the radio signal path controlled by that inner controller.Type: ApplicationFiled: May 11, 2020Publication date: May 18, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventor: Torbjörn WIGREN
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Publication number: 20230154342Abstract: According to certain embodiments, a method for use in a network node comprises: obtaining range information for a wireless device in communication with the network node; obtaining direction information for the wireless device; and estimating a movement of the wireless device based on the range information, the direction information, and an interactive multiple modeling (IMM) filter. The IMM filter comprises a three-dimensional (3D) constant velocity model, a 3D constant acceleration model, and a 3D constant position model.Type: ApplicationFiled: March 31, 2020Publication date: May 18, 2023Inventors: Sholeh Yasini, Torbjörn Wigren
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Publication number: 20230128635Abstract: A method and network node for predictive sectorized average power control. A method includes determining a beamforming gain for each of a plurality of directions. The method also includes determining a total power at each of a plurality of times within a window for each of the plurality of spatial directions, the total power being based at least in part on a weighted sum of products of a beamforming gain and a downlink power allocated to a wireless device in each of the plurality of spatial directions. The method further includes determining an average of the total power within the window to produce an average power; computing a control signal based on the average power and a threshold; and controlling the transmitted total power according to the control signal by limiting a fraction of scheduled physical resource blocks to an upper limit.Type: ApplicationFiled: April 29, 2020Publication date: April 27, 2023Inventors: Amr EL-KEYI, Torbjörn WIGREN, Shiguang GUO
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Patent number: 11601175Abstract: Methods, devices and computer programs for determining new transmit directions to use for beamformed transmissions in case the link quality of an existing direction falters. A transmitting communication device and a receiving communication device cooperate via a beam tracking procedure to determine a new suitable transmit direction to use for upcoming beamformed transmissions. Information relating to the beam tracking procedure is communicated over an existing link that enables communication between the transmitting and receiving communication devices. The receiving communication device provides the transmitting communication device with information about a beam scan performed in order to detect tracking beams transmitted by the transmitting communication device. This information allows the transmitting communication device to determine suitable transmit directions to use.Type: GrantFiled: October 14, 2021Date of Patent: March 7, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, Oskar Mauritz
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Patent number: 11595071Abstract: Methods, apparatus and computer programs are disclosed for controlling the output of a transmission point. One embodiment provides a method for controlling the output of a transmission point for a wireless communications network. The method includes determining an average output power of the transmission point, in a particular direction, over a period of time, comparing the average output power to an output power reference value, and allocating data, to be transmitted by the transmission point in the particular direction to one or more wireless devices, to a pool of radio resources. The pool of radio resources is adjusted as a function of the comparison between the average output power and the output power reference value.Type: GrantFiled: March 25, 2019Date of Patent: February 28, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Torbjörn Wigren, Christer Törnevik, Björn Thors
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Patent number: 11564182Abstract: Disclosed are methods and apparatuses. The method implemented at a wireless device may comprise computing an average power for a bin covering a portion of a total solid angle covered by an antenna array of the wireless device by averaging a momentary power for the bin over a time period, wherein the momentary power is computed based on respective scheduled power of at least one beamforming transmission and respective antenna gain of the at least one beamforming transmission in the bin (302, 606, 702, 802, 902, 1002). The method may further comprise performing a back-off power feedback control for the bin based on the computed average power (304, 608, 708, 808, 908, 1006).Type: GrantFiled: October 9, 2018Date of Patent: January 24, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Yali Pei, Yuan Wang, Torbjörn Wigren, Björn Thors
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Publication number: 20230020638Abstract: A method of monitoring a kinematic state of an unmanned aerial vehicle (UAV) is provided. The method comprises obtaining one or more predicted pathlosses between a UAV and one or more base stations at a first time instance, wherein the predicted pathlosses are determined using an estimate of a kinematic state of the UAV at the first time instance and one or more pathloss models developed using a machine-learning process. The method further comprises obtaining one or more measurements of a pathloss between each of the one or more base stations and the UAV at the first time instance, and re-determining the estimate of the kinematic state of the UAV at the first time instance based on the one or more predicted pathlosses and the one or more measurements of the pathloss.Type: ApplicationFiled: December 20, 2019Publication date: January 19, 2023Inventors: Sholeh YASINI, Torbjörn WIGREN, Richard WIRÉN, Juhani KAUPPI
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Publication number: 20220390545Abstract: 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: ApplicationFiled: November 12, 2019Publication date: December 8, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sholeh YASINI, Torbjörn WIGREN
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Publication number: 20220376770Abstract: A method performed by a node in a wireless communication networks. The method comprises obtaining measurement data for one or more measurements performed, by a wireless device in the wireless communication network, on at least one first radio signal transmitted by one or more base stations in the wireless communication network. The method further comprises determining whether or not the wireless device is airborne by inputting the measurement data to a model developed using a machine learning algorithm.Type: ApplicationFiled: July 15, 2019Publication date: November 24, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Peiliang CHANG, Sholeh YASINI, Torbjörn WIGREN, Richard WIREN, Juhani KAUPPI
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Patent number: 11503548Abstract: There is provided mechanisms for determining average total transmission power for an antenna array configured for beamformed transmission within an angular coverage region. A method is performed by a control device. The method comprises determining bin-wise values of beamforming gain for a set of non-overlapping bins collectively covering the angular coverage region of the antenna array. The method comprises obtaining values of total transmission power of the beamformed transmission. The method comprises determining bin-wise values of average transmission power from the bin-wise values of beamforming gain and the values of total transmission power. The method comprises combining the bin-wise values of average transmission power into one value of average total transmission power for the antenna array.Type: GrantFiled: October 8, 2018Date of Patent: November 15, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Yali Pei, Jonas Karlsson, Torbjörn Wigren, Yuan Wang
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Patent number: 11503564Abstract: A system, computer software and method for collecting, in addition to position data, additional positioning data in a user terminal served by a communication network. The method includes initiating, by generating a message within the user terminal, collection of the positioning data, where the positioning data includes information based on which a physical location of the user terminal is determined; measuring, by the user terminal, at least one parameter related to the physical location of the user terminal in response to the message; producing, within the user terminal, measurement reports that include the at least one parameter; selecting, within the user terminal, one or more measurement reports that were generated in response to the message generated by the user terminal; reporting the selected one or more measurement reports to an interface within the user terminal; and transmitting, from the interface, the reported one or more measurement reports to an external server or to the communication network.Type: GrantFiled: September 1, 2021Date of Patent: November 15, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Karl Torbjorn Wigren, Johan Bolin, Per Willars
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Publication number: 20220357439Abstract: A method for providing motion information of a UE in a wireless communication system. The method comprises initiating, in a first network node, of a first Doppler shift measurement concerning the UE. In the first network node, a transfer of requests for second Doppler shift measurement concerning the UE is initiated to second network nodes. Data representing the first Doppler shift measurement is obtained in the first network node. Data representing the second Doppler shift measurements is obtained in the first network node. An estimated motion, in more than one dimension, of the UE is determined in dependence of at least the obtained data representing the first Doppler shift measurement and the obtained data representing the second Doppler shift measurements. A method for assisting by the second network node, as well as network nodes performing the methods are also disclosed.Type: ApplicationFiled: September 19, 2019Publication date: November 10, 2022Inventors: Oskar Mauritz, Sholeh Yasini, Torbjörn Wigren
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Patent number: 11486959Abstract: Systems and methods are disclosed herein that relate to positioning in a cellular communications system. In some embodiments, a method for determining a three dimensional location of a wireless device in a cellular communications network comprises obtaining a plurality of measurements for a wireless device, where the plurality of measurements are Time Difference of Arrival (TDOA) related measurements. The method further comprises computing a three dimensional position of the wireless device using the plurality of measurements and a vertical surface model, wherein the vertical surface model is a translated and scaled version of an initial vertical surface model. The new vertical surface model provides translation and scaling of the initial vertical surface model to a suitable range before it is used to determine the three dimensional position of the wireless device such that accuracy is improved, e.g., in large rural cells.Type: GrantFiled: December 11, 2018Date of Patent: November 1, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Torbjörn Wigren
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Patent number: 11480646Abstract: Systems and methods for signaling information related to wireless device positioning in a cellular communications network are disclosed. In some embodiments, a method of operation of a first network node for signaling information related to wireless device positioning in a cellular communications network comprises signaling, from the first network node to a second node, information comprising information that relates to a new vertical surface model for a plurality of cells in a cellular communications network. The new vertical surface model is a translated and scaled version of an initial vertical surface model.Type: GrantFiled: December 11, 2018Date of Patent: October 25, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Torbjörn Wigren
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Publication number: 20220338134Abstract: 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: ApplicationFiled: September 10, 2019Publication date: October 20, 2022Inventors: Torbjörn WIGREN, Christer TÖRNEVIK