Patents by Inventor Mats Buchmayer
Mats Buchmayer 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: 20230269771Abstract: A method, system and apparatus for coexistence of a public network and a non-public network are disclosed. According to one aspect, a method includes selectively muting a downlink transmission to a public network (PN) based at least in part on whether the downlink transmission interferes with a non-public network (NPN) uplink transmission. According to another aspect, a method includes selectively muting an uplink transmission from the NPN based at least in part on whether the uplink transmission interferes with a public network (PN) downlink transmission.Type: ApplicationFiled: November 18, 2020Publication date: August 24, 2023Inventors: Virgil CIMPU, Mats BUCHMAYER, Gunther AUER
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Patent number: 11671838Abstract: There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining (310) one or more cell shaping parameters; sending (320) the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving (330) an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving (160) an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining (170) a beam pattern based on the received envelope; sending (180) the determined beam pattern to the second node.Type: GrantFiled: September 25, 2020Date of Patent: June 6, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Virgil Cimpu, Junying Liu, Mats Buchmayer, Fredric Kronestedt, Magnus Lundevall, Chris Williams, Gary Boudreau, Kumar Balachandran
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Patent number: 11621889Abstract: Embodiments include methods for channel reconfiguration by a network node in a communications network. Such methods include obtaining received signal strength indicator (RSSI) measurements from wireless devices served by the network node at a current channel in a current frequency interval within a current frequency band. the RSSI measurements trigger perform channel reconfiguration to select a new channel for serving the wireless device. the new channel is the current frequency interval in the current frequency band, a new frequency interval in the current frequency band, or a new frequency interval in a new frequency band. The new channel is selected based on RSSI measurements are performed by the network node on one or more of the following: the current channel in the current frequency interval, a different channel in the current frequency interval, or a different channel in the new frequency interval.Type: GrantFiled: September 28, 2021Date of Patent: April 4, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Junying Liu, Mats Buchmayer, Fredric Kronestedt, Emma Wittenmark
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Publication number: 20230045195Abstract: A method performed by a first node (111) managing a P-CSCF in a first communications network (101). The method is for handling identification of a second communications network (201). One of the communications networks is a home network and the other is a visited network. The first node (111) obtains (701) a unique identifier uniquely identifying the second communications network (201) in a plurality of networks (200) sharing a Mobile Network identifier. The unique identifier is based on: a) an MCC and an MNC, corresponding to a shared PLMN identifier, and b) a subscriber identifier corresponding to the second network (201). The first node (111) also processes (702) provision of an IMS service across the communications networks, to a device (230) operating in the visited network, based on the identifier. The processing (702) comprises, in the home network, one of: i) application of a policy or rule, and ii) routing a communication to a S-CSCF.Publ.Type: ApplicationFiled: January 12, 2021Publication date: February 9, 2023Inventors: Afshin Abtin, Mats Buchmayer
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Publication number: 20230008485Abstract: A method performed by a first network node associated with a public network in a first cell includes determining that a first wireless device operating on a first frequency band in the first cell is proximate to a second cell associated with a non-public network operating on a second frequency band. The first network node offloads the first wireless device to a third frequency band.Type: ApplicationFiled: December 17, 2020Publication date: January 12, 2023Inventors: Virgil Cimpu, Mats Buchmayer
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Publication number: 20220338017Abstract: There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining (310) one or more cell shaping parameters; sending (320) the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving (330) an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving (160) an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining (170) a beam pattern based on the received envelope; sending (180) the determined beam pattern to the second node.Type: ApplicationFiled: September 25, 2020Publication date: October 20, 2022Inventors: Virgil Cimpu, Junying Liu, Mats Buchmayer, Fredric Kronestedt, Magnus Lundevall, Chris Williams, Gary Boudreau, Kumar Balachandran
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Publication number: 20220201592Abstract: Methods of operating a network node in a cell of a wireless communication network are provided. Methods include broadcasting, to a user equipment, UE, a first network list that includes multiple public network identifiers that correspond to public networks in the cell, and broadcasting, to the UE, a second network list that includes multiple non-public network, NPN, identifiers that correspond to NPNs in the cell. Each of the public network identifiers and NPN identifiers includes multiple data fields. The network identifiers include a mobile country code, MCC, a mobile network code, MNC and at least one of a control access group, CAG, and a network identifier, NID.Type: ApplicationFiled: March 27, 2020Publication date: June 23, 2022Inventors: Christofer LINDHEIMER, Mattias BERGSTRÖM, Mats BUCHMAYER, Peter HEDMAN, Oscar OHLSSON, Paul SCHLIWA-BERTLING, Ivo SEDLACEK, Alexander VESELY
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Patent number: 11356871Abstract: A method for a primary user device of a spectrum license used for allowing radio communication in a wireless communication network covering a local area to which the spectrum license is limited, wherein the method comprises: providing at least one spectrum compliance probe within the local area; detecting, using the at least one spectrum compliance probe, within the local area one or both of (i) a first interference caused by a first signal originating from within the local area, wherein the first interference is not allowed by the spectrum license, and (ii) a second interference caused by a second signal originating from outside the local area, wherein the second interference is not allowed by the spectrum license; and controlling the radio communication in response to said detection.Type: GrantFiled: July 5, 2018Date of Patent: June 7, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Pål Frenger, Mats Buchmayer, Jan Hederen, Gösta Lemne
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Publication number: 20220014431Abstract: Embodiments include methods for channel reconfiguration by a network node in a communications network. Such methods include obtaining received signal strength indicator (RSSI) measurements from wireless devices served by the network node at a current channel in a current frequency interval within a current frequency band. the RSSI measurements trigger perform channel reconfiguration to select a new channel for serving the wireless device. the new channel is the current frequency interval in the current frequency band, a new frequency interval in the current frequency band, or a new frequency interval in a new frequency band. The new channel is selected based on RSSI measurements are performed by the network node on one or more of the following: the current channel in the current frequency interval, a different channel in the current frequency interval, or a different channel in the new frequency interval.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Inventors: Junying Liu, Mats Buchmayer, Fredric Kronestedt, Emma Wittenmark
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Patent number: 11159373Abstract: Mechanisms are provided for channel reconfiguration in a communications network where shared spectrum from a primary incumbent is used. A method is performed by a network node, which comprises obtaining RSSI measurements on the current channel from wireless devices. The wireless devices are served by the network node at a current channel in a current frequency interval within a frequency band. When the RSSI measurements trigger a need for the network node to perform channel reconfiguration, the network node selects a new channel based on RSSI measurements that it itself performs. The method comprises selecting a new channel in a new or the same frequency interval, in a new or the same frequency band, for serving the wireless devices based on RSSI measurements performed by the network node, and channel reconfiguration for the wireless devices is performed.Type: GrantFiled: April 28, 2017Date of Patent: October 26, 2021Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Junying Liu, Mats Buchmayer, Fredric Kronestedt, Emma Wittenmark
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Publication number: 20210076233Abstract: A method for a primary user device of a spectrum license used for allowing radio communication in a wireless communication network covering a local area to which the spectrum license is limited, wherein the method comprises: providing at least one spectrum compliance probe within the local area; detecting, using the at least one spectrum compliance probe, within the local area one or both of (i) a first interference caused by a first signal originating from within the local area, wherein the first interference is not allowed by the spectrum license, and (ii) a second interference caused by a second signal originating from outside the local area, wherein the second interference is not allowed by the spectrum license; and controlling the radio communication in response to said detection.Type: ApplicationFiled: July 5, 2018Publication date: March 11, 2021Inventors: Pål FRENGER, Mats BUCHMAYER, Jan HEDEREN, Gösta LEMNE
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Patent number: 10924937Abstract: According to some embodiments, a method for use in a first spectrum access system (SAS) server of authorizing spectrum access comprises: receiving, from a second SAS, information about one or more priority access license (PAL) protection areas (PPAs) served by the second SAS; receiving a spectrum grant request on behalf of one of a first PPA or a first general authorized access (GAA) user; determining whether granting the spectrum grant request may interfere with a second PPA geographically proximate the one of the first PPA or the first GAA user, wherein the second PPA is served by the second SAS; and granting or denying the spectrum grant request based at least in part on the interference determination. The interference determination may comprise modeling the radio environment within the second PPA and surrounding areas based on the spectrum grant request to determine whether an aggregate interference level exceeds a threshold.Type: GrantFiled: May 11, 2017Date of Patent: February 16, 2021Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Kumar Balachandran, Virgil Cimpu, Tomas Hedberg, Mats Buchmayer
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Publication number: 20200059405Abstract: Mechanisms are provided for channel reconfiguration in a communications network where shared spectrum from a primary incumbent is used. A method is performed by a network node, which comprises obtaining RSSI measurements on the current channel from wireless devices. The wireless devices are served by the network node at a current channel in a current frequency interval within a frequency band. When the RSSI measurements trigger a need for the network node to perform channel reconfiguration, the network node selects a new channel based on RSSI measurements that it itself performs. The method comprises selecting a new channel in a new or the same frequency interval, in a new or the same frequency band, for serving the wireless devices based on RSSI measurements performed by the network node, and channel reconfiguration for the wireless devices is performed.Type: ApplicationFiled: April 28, 2017Publication date: February 20, 2020Inventors: Junying Liu, Mats Buchmayer, Fredric Kronestedt, Emma Wittenmark
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Patent number: 10419944Abstract: A spectrum management device (110) determines spectrum assignments (205, 215) for a radio access node (120). The spectrum assignments (205, 215) comprise an access spectrum assignment (205) and a failover spectrum assignment (215) for replacing at least part of the access spectrum assignment (205) responsive to a conflict between the radio access node (120) and an incumbent user (130) with respect to the access spectrum assignment (205). The radio access node (120) is notified of the spectrum assignments (205, 215), and in response, the radio access node (120) commences radio communications according to the access spectrum assignment (205). In response to receiving notification to discontinue use of the at least part of the access spectrum assignment (205), the radio access node (120) replaces the at least part of the access spectrum assignment (205) with at least part of the failover spectrum assignment (215).Type: GrantFiled: March 29, 2016Date of Patent: September 17, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mats Buchmayer, Kumar Balachandran
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Publication number: 20190215698Abstract: According to some embodiments, a method for use in a first spectrum access system (SAS) server of authorizing spectrum access comprises: receiving, from a second SAS, information about one or more priority access license (PAL) protection areas (PPAs) served by the second SAS; receiving a spectrum grant request on behalf of one of a first PPA or a first general authorized access (GAA) user; determining whether granting the spectrum grant request may interfere with a second PPA geographically proximate the one of the first PPA or the first GAA user, wherein the second PPA is served by the second SAS; and granting or denying the spectrum grant request based at least in part on the interference determination. The interference determination may comprise modeling the radio environment within the second PPA and surrounding areas based on the spectrum grant request to determine whether an aggregate interference level exceeds a threshold.Type: ApplicationFiled: May 11, 2017Publication date: July 11, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Kumar BALACHANDRAN, Virgil CIMPU, Tomas HEDBERG, Mats BUCHMAYER
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Patent number: 10292062Abstract: A method and apparatus for allocating resources of a cell served by a base station among a plurality of operators sharing the cell resources are disclosed. One embodiment is a method including receiving from a central node serving at least the base station, a resource allocation request instructing the base station to reallocate the cell resources among the plurality of operators. The method further includes allocating cell resources among the plurality of operators according to the resource allocation request received from the central node.Type: GrantFiled: January 29, 2015Date of Patent: May 14, 2019Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Angelo Centonza, Mats Buchmayer, Icaro L. J. DaSilva
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Publication number: 20190132744Abstract: A spectrum management device (110) determines spectrum assignments (205, 215) for a radio access node (120). The spectrum assignments (205, 215) comprise an access spectrum assignment (205) and a failover spectrum assignment (215) for replacing at least part of the access spectrum assignment (205) responsive to a conflict between the radio access node (120) and an incumbent user (130) with respect to the access spectrum assignment (205). The radio access node (120) is notified of the spectrum assignments (205, 215), and in response, the radio access node (120) commences radio communications according to the access spectrum assignment (205). In response to receiving notification to discontinue use of the at least part of the access spectrum assignment (205), the radio access node (120) replaces the at least part of the access spectrum assignment (205) with at least part of the failover spectrum assignment (215).Type: ApplicationFiled: March 29, 2016Publication date: May 2, 2019Inventors: Mats Buchmayer, Kumar Balachandran
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Patent number: 10178564Abstract: An approach for enhancing service continuity in the case of a communication failure between a repository and a controller of a spectrum sharing communication system as described. The repository is operable to at least one of store and generate restrictions governing use of a set of spectrum resources, and the controller is operable to receive the restriction from the repository and to enforce the restrictions A method implementation performed, for example, by the controller may comprise determining occurrence of a communication failure between the repository and the controller and, in response to the communication failure, taking one or more actions that result in an at least temporary continued use of spectrum resources under control of the controller.Type: GrantFiled: September 21, 2015Date of Patent: January 8, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mats Buchmayer, Håkan Persson, William Warrillow
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Patent number: 10080141Abstract: A technique for assigning spectral resources in a cellular network for wireless communications is described. The spectral resources are partly utilized by other applications. As to a method aspect of the technique, a controller (100) of the cellular network receives information (702) indicative of one or more geographical areas and restrictions within the one or more geographical areas (1002). The spectral resources are assigned based on the received information (702).Type: GrantFiled: June 16, 2015Date of Patent: September 18, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mats Buchmayer, Claes Andersson, Håkan Persson, William Warrillow
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Patent number: 9769659Abstract: According to a first aspect there is provided a method of operating an entity of a Wireless Local Area Network (WLAN). The method comprises receiving a Media Access Control (MAC) address for a device that is attempting to associate with the WLAN (S101), and determining if an International Mobile Subscriber Identity (IMSI) associated with the MAC address is stored in the WLAN (S102). The method further comprises, if an IMSI associated with the MAC address is not stored in the WLAN, obtaining an IMSI for the device during authentication of device stored IMSI of the device to the WLAN (S103), and causing storage within the WLAN of the obtained IMSI in association with the MAC address (S104).Type: GrantFiled: August 23, 2012Date of Patent: September 19, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mats Buchmayer, Oscar Zee