Patents by Inventor Tomas Lundborg
Tomas Lundborg 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: 20240406750Abstract: A method for identifying floors in a building in need of a network related action based on radio signal parameter values comprises obtaining location data of a geographical location. The method includes obtaining, for a set of user equipment, radio signal parameter values from measurements made at the geographical location. The method includes identifying, by comparing horizontal positions of the user equipment with the location data, a first subset of the user equipment. The method includes associating, by comparing vertical positions of the user equipment in the first subset of the user equipment with the location data, second subsets of the user equipment with floors of the building. The method includes identifying floors in need of a network related action as any of the floors associated with one of the second subsets of the user equipment for which the second performance value is below a second threshold value.Type: ApplicationFiled: September 27, 2021Publication date: December 5, 2024Inventors: Rohit CHANDRA, Brahim BELAOUCHA, Tomas LUNDBORG
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Publication number: 20240080686Abstract: Mechanisms for estimating a ratio of indoor-to-outdoor traffic or user equipment distribution. A method is performed by a network node. The method includes obtaining, for a set of user equipment, radio signal measurements. The radio signal measurements have a probability distribution function. The method includes separating the probability distribution function into a set of clusters. Each cluster has its own individual probability distribution function. The method includes estimating the ratio of indoor-to-outdoor traffic or user equipment distribution by predicting, from the individual probability distribution functions of the clusters, which, if any, of the clusters represent indoor user equipment and which, if any, of the clusters represent outdoor user equipment. The method includes performing a network related action in accordance with the ratio of indoor-to-outdoor traffic or user equipment distribution.Type: ApplicationFiled: February 1, 2021Publication date: March 7, 2024Inventors: Rohit CHANDRA, Brahim BELAOUCHA, Tomas LUNDBORG, Gunther AUER, Bengt MÄLER
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Patent number: 11784698Abstract: A method for beam assignment support comprises obtaining of, in a radio base station, a set of channel gain estimations representing potential transmissions in a set of beams to a user equipment. A set of bias values is obtained, representing connection quality predictions for a respective beam of the set of beams for transmission to the user equipment. The connection quality predictions are estimations calculated from measures of previous traffic load, previous radio quality of transmissions, and/or previous beam assignments of the first transmission reception point. A set of biased channel gain estimations is determined by weighting the channel gain estimations in dependence of respective bias values. A beam assignment based on the biased channel gain estimations is initiated. A method also for determining bias values in a network node as well as radio base stations.Type: GrantFiled: December 21, 2017Date of Patent: October 10, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tomas Lundborg, Kjell Larsson, Andreas Ermedahl
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Publication number: 20210105057Abstract: A method for beam assignment support comprises obtaining of, in a radio base station, a set of channel gain estimations representing potential transmissions in a set of beams to a user equipment. A set of bias values is obtained, representing connection quality predictions for a respective beam of the set of beams for transmission to the user equipment. The connection quality predictions are estimations calculated from measures of previous traffic load, previous radio quality of transmissions, and/or previous beam assignments of the first transmission reception point. A set of biased channel gain estimations is determined by weighting the channel gain estimations in dependence of respective bias values. A beam assignment based on the biased channel gain estimations is initiated. A method also for determining bias values in a network node as well as radio base stations.Type: ApplicationFiled: December 21, 2017Publication date: April 8, 2021Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tomas LUNDBORG, Kjell LARSSON, Andreas ERMEDAHL
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Patent number: 10574774Abstract: There is provided a method of providing cached content in a telecommunications network. The method comprises requesting content from a caching system (S12.1). At a local cache (305), fragments are associated with the requested content (S12.5) and sent towards a user (S12.6). An identifier for the user and any of an identifier for the requested content and an index of each identified fragment is sent towards a mirror cache upstream of the local cache (S12.7). Prior to the local cache (305) identifying the fragments associated with the requested content, the mirror cache may identify fragments associated with the requested content (S12.3), and send a key comprising the index of each fragment to the local cache (305) (S12.4). The fragments will then be identified at the local cache (305) (S12.5) using the key.Type: GrantFiled: December 27, 2012Date of Patent: February 25, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Tomas Lundborg
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Patent number: 10382971Abstract: A method performed by a first base station of requesting resources in an unlicensed spectrum for a mobile terminal for which the first base station serves as a primary cell base station is provided. The method comprises submitting a request for the unlicensed spectrum resources to a second base station serving as a secondary cell base station for the mobile terminal, receiving a response to the request from the second base station indicating that unlicensed spectrum resources will be assigned. The method further comprises submitting, in case the assigned unlicensed spectrum resources are not sufficient for serving the mobile terminal, a request to the second base station to give priority to assignment of the requested unlicensed spectrum resources over resources requested by mobile terminals for which said second base station serves as a primary cell base station.Type: GrantFiled: September 14, 2015Date of Patent: August 13, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Tomas Lundborg
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Patent number: 10075872Abstract: Methods and apparatus are provided for use in compressing packet traffic associated with a user equipment in a network. The compression ratio is estimated/calculated for a packet in the packet traffic based on a compression length for compressing the packet. The estimated/calculated compression ratio is compared with a target compression ratio. The compression length is adjusted when the estimated compression ratio has not reached at least the target compression ratio. The adjusted compression ratio is used as the compression length for compressing the packet traffic.Type: GrantFiled: March 4, 2014Date of Patent: September 11, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Fredrik Persson, Tomas Lundborg
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Publication number: 20180242159Abstract: The invention relates to methods and devices of requesting and assigning resources in an unlicensed spectrum. The invention further relates to computer programs for causing the devices to perform the methods according to the invention, and corresponding computer program products. A method performed by a first base station (14) of requesting resources in an unlicensed spectrum for a mobile terminal (13:1) for which the first base station (14) serves as a primary cell base station is provided. The method comprises submitting (S101) a request for the unlicensed spectrum resources to a second base station (10) serving as a secondary cell base station for the mobile terminal (13:1), receiving (S102) a response to the request from the second base station (10) indicating that unlicensed spectrum resources will be assigned.Type: ApplicationFiled: September 14, 2015Publication date: August 23, 2018Inventor: Tomas Lundborg
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Patent number: 9973971Abstract: The present invention relates to a method and system for enabling a redistribution of load between cells. The method comprises obtaining a current load value for a first cell, and obtaining a target load value for a neighbor cell. The method also comprises determining the target load value for the first cell as a function of the current load value and the target load value for the neighbor cell, obtaining an update of the target load value for the neighbor cell, and iterating the determining and the obtaining. The method further comprises taking action for a redistribution of load between the first cell and the neighbor cell towards a load distribution represented by the resulting load values.Type: GrantFiled: June 26, 2014Date of Patent: May 15, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Daniel Gillblad, Olof Görnerup, Diarmuid Corcoran, Tomas Lundborg, Andreas Ermedahl, Per Kreuger
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Publication number: 20170134984Abstract: The present invention relates to a method and system for enabling a redistribution of load between cells. The method comprises obtaining a current load value for a first cell, and obtaining a target load value for a neighbor cell. The method also comprises determining the target load value for the first cell as a function of the current load value and the target load value for the neighbor cell, obtaining an update of the target load value for the neighbor cell, and iterating the determining and the obtaining. The method further comprises taking action for a redistribution of load between the first cell and the neighbor cell towards a load distribution represented by the resulting load values.Type: ApplicationFiled: June 26, 2014Publication date: May 11, 2017Inventors: Daniel GILLBLAD, Olof GÖRNERUP, Diarmuid CORCORAN, Tomas LUNDBORG, Andreas ERMEDAHL, Per KREUGER
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Publication number: 20160309363Abstract: Methods and apparatus are provided for use in compressing packet traffic associated with a user equipment in a network. The compression ratio is estimated/calculated for a packet in the packet traffic based on a compression length for compressing the packet. The estimated/calculated compression ratio is compared with a target compression ratio. The compression length is adjusted when the estimated compression ratio has not reached at least the target compression ratio. The adjusted compression ratio is used as the compression length for compressing the packet traffic.Type: ApplicationFiled: March 4, 2014Publication date: October 20, 2016Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Fredrik PERSSON, Tomas LUNDBORG
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Patent number: 9203573Abstract: A method and a base station serving a first cell of a cellular network, for controlling interference coordination with at least one neighboring cell. The base station obtains transaction related information pertaining to a forthcoming data transaction involving at least one wireless terminal in the first cell, and estimates a transaction magnitude (TM) for said data transaction, based on the obtained transaction related information. The base station then controls employment of an Inter-Cell Interference Coordination scheme for the forthcoming data transaction, based on the estimated transaction magnitude.Type: GrantFiled: June 15, 2011Date of Patent: December 1, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Tomas Lundborg, Ke Wang Helmersson
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Publication number: 20150304444Abstract: There is provided a method of providing cached content in a telecommunications network. The method comprises requesting content from a caching system (S12.1). At a local cache (305), fragments are associated with the requested content (S12.5) and sent towards a user (S12.6). An identifier for the user and any of an identifier for the requested content and an index of each identified fragment is sent towards a mirror cache upstream of the local cache (S12.7). Prior to the local cache (305) identifying the fragments associated with the requested content, the mirror cache may identify fragments associated with the requested content (S12.3), and send a key comprising the index of each fragment to the local cache (305) (S12.4). The fragments will then be identified at the local cache (305) (S12.5) using the key.Type: ApplicationFiled: December 27, 2012Publication date: October 22, 2015Inventor: Tomas LUNDBORG
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Patent number: 9014690Abstract: The technology in this application reduces the maintenance effort and expense to monitor the performance of a cellular radio access node (e.g., a relay or repeater) by having the cellular radio access node automatically perform radio performance monitoring on itself and providing some kind of indication of its status to an operations and maintenance node. The cellular radio access node monitors performance of a set of one or more radio characteristics of a received radio signal received by the cellular radio access node or a transmitted radio signal transmitted by the cellular radio access node and determines whether the performance exceeds an associated predetermined threshold. The cellular radio access node indicates a condition of the cellular radio access node for the operations and maintenance node based on the monitored performance. The cellular radio access node may take independent action, e.g., shutdown, restart, reduce transmit power, etc., if a monitored condition is exceeded, e.g.Type: GrantFiled: September 7, 2010Date of Patent: April 21, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Tomas Lundborg, Lars Klockar
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Publication number: 20140370906Abstract: A method and a base station serving a first cell of a cellular network, for controlling interference coordination with at least one neighbouring cell. The base station obtains transaction related information pertaining to a forthcoming data transaction involving at least one wireless terminal in the first cell, and estimates a transaction magnitude (TM) for said data transaction, based on the obtained transaction related information. The base station then controls employment of an Inter-Cell Interference Coordination scheme for the forthcoming data transaction, based on the estimated transaction magnitude.Type: ApplicationFiled: June 15, 2011Publication date: December 18, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Tomas Lundborg, Ke Wang Helmersson
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Publication number: 20120058759Abstract: The technology in this application reduces the maintenance effort and expense to monitor the performance of a cellular radio access node (e.g., a relay or repeater) by having the cellular radio access node automatically perform radio performance monitoring on itself and providing some kind of indication of its status to an operations and maintenance node. The cellular radio access node monitors performance of a set of one or more radio characteristics of a received radio signal received by the cellular radio access node or a transmitted radio signal transmitted by the cellular radio access node and determines whether the performance exceeds an associated predetermined threshold. The cellular radio access node indicates a condition of the cellular radio access node for the operations and maintenance node based on the monitored performance. The cellular radio access node may take independent action, e.g., shutdown, restart, reduce transmit power, etc., if a monitored condition is exceeded, e.g.Type: ApplicationFiled: September 7, 2010Publication date: March 8, 2012Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tomas LUNDBORG, Lars Klockar
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Patent number: 6782262Abstract: In a hierarchical cell structure, the parameter for setting a signal strength threshold which determines the selection of serving cell, along with the preference rating of umbrella macrocells, microcells and picocells in a cellular telephone system, is related to a quality criteria, such as speech quality. The “sufficient signal strength” threshold is automatically tuned according to the quality criteria thereby avoiding the need for expensive, time consuming manual adjustment of this parameter.Type: GrantFiled: October 28, 1998Date of Patent: August 24, 2004Assignee: Telefonaktiebolaget LM EricssonInventor: Tomas Lundborg
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Patent number: 6658262Abstract: Methods and systems for transmitting power control commands in radiocommunication systems are described. To reduce the usage of fast associated control channel “blank-and-burst” techniques, the present invention provides mechanisms for reducing the frequency of transmission of uplink power control commands to mobile stations. More specifically, the frequency of transmission of uplink power control commands by the system can be reduced when the transmit power level of the mobile station is already relatively low and when the uplink power control commands seek to further reduce the transmit power level of the mobile station.Type: GrantFiled: December 27, 1999Date of Patent: December 2, 2003Assignee: Telefonaktiebolget LM Ericsson (publ)Inventor: Tomas Lundborg
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Patent number: 6434386Abstract: A method and system for monitoring output power of transceivers in radiocommunication systems are described. By evaluating a statistic associated with pre- and post handoff received signals, information can be gathered regarding the transmit power operating characteristic of various transceivers. For example, by measuring the received signal strength of a neighboring base station's control channel prior to handoff and comparing that with the received signal strength of a traffic channel transmitted by the same base station after handoff, the system can acquire information regarding the power output of a base station transceiver. Over time, the system can determine whether one or more power settings associated with that transceiver needs adjustment.Type: GrantFiled: December 31, 1998Date of Patent: August 13, 2002Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Tomas Lundborg
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Patent number: 6381457Abstract: A method and arrangement in a radio communication system for determining the presence of a mobile station in a determined area. A first radio channel is allocated for communication of control information and user data information between the mobile station and a first base station. The mobile station transmits identity information repeatedly on the first radio channel. A detecting unit receives at least one occurrence of the transmitted identity information. The mobile station is registered as present in the vicinity of the detecting unit upon receipt of said at least one occurrence of the identity information.Type: GrantFiled: April 7, 1999Date of Patent: April 30, 2002Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Göran Carlsson, Tomas Lundborg, Per-Arne Sandegren