Patents by Inventor Peter Björkén
Peter Björkén 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: 9686804Abstract: It is presented a method for assisting handling of interference at a receiver device. The method is performed in a network node and comprises the steps of: determining a parameter indicating a maximum number of interfering streams for which interference suppression is likely to be successful at the receiver device; determining that a number of potentially interfering streams at the receiver device exceeds the maximum number of interfering streams indicated by the parameter; and scheduling transmissions to avoid that the number of concurrent interfering streams at the receiver device exceeds the maximum number of interfering streams indicated by the parameter. A corresponding network node is also presented.Type: GrantFiled: May 23, 2013Date of Patent: June 20, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Gunther Auer, Peter Björkén, Mattias Frenne
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Patent number: 9559795Abstract: A method and network node of a first cellular network, for enabling mitigation of interference in the first cellular network caused by radio communication in a second cellular network. The network node obtains a total interference in a first cell of the first cellular network, and estimates a first interference contribution in the first cell caused by radio communication in the first cellular network. The network node then determines a second interference contribution in the first cell caused by radio communication in the second cellular network based on the estimated first interference contribution and the obtained total interference. The network node also utilizes the determined second interference contribution to counteract the interference in the first cell caused by the radio communication in the second cellular network.Type: GrantFiled: January 23, 2013Date of Patent: January 31, 2017Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Peter Björkén, Fredric Kronestedt
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Publication number: 20160128081Abstract: It is presented a method for assisting handling of interference at a receiver device. The method is performed in a network node and comprises the steps of: determining a parameter indicating a maximum number of interfering streams for which interference suppression is likely to be successful at the receiver device; determining that a number of potentially interfering streams at the receiver device exceeds the maximum number of interfering streams indicated by the parameter; and scheduling transmissions to avoid that the number of concurrent interfering streams at the receiver device exceeds the maximum number of interfering streams indicated by the parameter. A corresponding network node is also presented.Type: ApplicationFiled: May 23, 2013Publication date: May 5, 2016Inventors: Gunther AUER, Peter BJÖRKÉN, Mattias FRENNE
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Publication number: 20150365180Abstract: A method and network node of a first cellular network, for enabling mitigation of interference in the first cellular network caused by radio communication in a second cellular network. The network node obtains a total interference in a first cell of the first cellular network, and estimates a first interference contribution in the first cell caused by radio communication in the first cellular network. The network node then determines a second interference contribution in the first cell caused by radio communication in the second cellular network based on the estimated first interference contribution and the obtained total interference. The network node also utilizes the determined second interference contribution to counteract the interference in the first cell caused by the radio communication in the second cellular network.Type: ApplicationFiled: January 23, 2013Publication date: December 17, 2015Inventors: Peter Björkén, Fredric Kronestedt
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Patent number: 9031046Abstract: The present invention relates to uplink transmissions and scheduling of resources for uplink transmissions in connection with packet switched communication. A radio communication network schedules time slots for transmission of bursts of a first radio block on at least two different uplink packet data channels and transmits an Uplink State Flag, associated with a mobile station for which the first radio block was scheduled, on a first downlink packet data channel representing a first subperiod within a basic uplink period. The mobile station receives the Uplink State Flag, identifies the scheduled resources for transmission of the first radio block wherein the timing of the first subperiod is derived utilizing the fact that the Uplink State Flag was received on the first downlink packet data channel and transmits the first radio block utilizing the identified resources.Type: GrantFiled: December 20, 2013Date of Patent: May 12, 2015Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventor: Peter Björkén
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Patent number: 8903400Abstract: A method for a network (100) with cells of first and a second kind with corresponding base stations. The network (100) comprises functions for control of the base stations of the first and second kinds and for handing over control of user terminals between base stations, the method being used when a user terminal (123) in a cell of the second kind (120-122) is handed over to a base station (111) of a cell (110) of the first kind. The method lets said control function (140) of the base station of the cell of the first kind send instructions to the control function (140) of the base station (111) of the second kind regarding at least one or more frequencies on which the base station of the second kind may operate, or an identity code which may be used by the base station of the second kind.Type: GrantFiled: March 30, 2007Date of Patent: December 2, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Peter Bjorken
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Publication number: 20140105193Abstract: The present invention relates to uplink transmissions and scheduling of resources for uplink transmissions in connection with packet switched communication. A radio communication network schedules time slots for transmission of bursts of a first radio block on at least two different uplink packet data channels and transmits an Uplink State Flag, associated with a mobile station for which the first radio block was scheduled, on a first downlink packet data channel representing a first subperiod within a basic uplink period. The mobile station receives the Uplink State Flag, identifies the scheduled resources for transmission of the first radio block wherein the timing of the first subperiod is derived utilizing the fact that the Uplink State Flag was received on the first downlink packet data channel and transmits the first radio block utilizing the identified resources.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventor: Peter Bjorken
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Patent number: 8649748Abstract: According to the teachings presented herein, dynamic mapping is used to determine which multi-carrier power amplifiers (MC-PAs) provide the required transmit power for individual ones of the transmitters in a base station. With dynamic mapping, the required transmit power of any one or more of the transmitters can be distributed to more than one MCPA, providing for more efficient ‘packing’ of required transmit powers into the available transmit powers of the MCPAs, and/or providing for power mapping based on any one or more mapping criterion, As a non-limiting advantage, the dynamic mapping presented herein reduces the number of MCPAs needed to support a given number of transmitters.Type: GrantFiled: December 29, 2008Date of Patent: February 11, 2014Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Peter Björkén
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Patent number: 8638727Abstract: The present invention relates to uplink transmissions and scheduling of resources for uplink transmissions in connection with packet switched communication. A radio communication network schedules (301) time slots for transmission of bursts of a first radio block on at least two different uplink packet data channels and transmits (302) an Uplink State Flag, associated with a mobile station for which the first radio block was scheduled, on a first downlink packet data channel representing a first subperiod within a basic uplink period. The mobile station receives (303) the Uplink State Flag, identifies (304) the scheduled resources for transmission of the first radio block wherein the timing of the first subperiod is derived utilizing the fact that the Uplink State Flag was received on the first downlink packet data channel and transmits (305) the first radio block utilizing the identified resources.Type: GrantFiled: November 1, 2005Date of Patent: January 28, 2014Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventor: Peter Bjórken
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Patent number: 8594685Abstract: In a method and a device for frequency planning of a multi carrier cellular radio system, a cost function that reflects a multi carrier function is used. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.Type: GrantFiled: August 21, 2007Date of Patent: November 26, 2013Assignee: Unwired Planet, LLCInventors: Fredric Kronestedt, Peter de Bruin, Peter Bjorken
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Publication number: 20130242788Abstract: The user equipment comprises a radio transmitter arranged to transmit data packets to a receiver on an uplink channel and a receiver arranged to receive data packets transmitted from a transmitter on a downlink channel. The user equipment comprises circuitry that analyzes the received data packets.Type: ApplicationFiled: April 26, 2013Publication date: September 19, 2013Applicant: Unwired Planet, LLCInventors: Peter Björkén, Paul Schliwa-Bertling, Mårten Sundberg
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Patent number: 8432841Abstract: The user equipment comprises a radio transmitter arranged to transmit data packets to a receiver on an uplink channel and a receiver arranged to receive data packets transmitted from a transmitter on a downlink channel. The user equipment comprises circuitry that analyzes the received data packets.Type: GrantFiled: October 25, 2007Date of Patent: April 30, 2013Assignee: Unwired Planet, LLCInventors: Peter Björkén, Paul Schliwa-Bertling, Mårten Sundberg
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Patent number: 8140105Abstract: The present invention presents a method for controlling output power and reducing interference in a radio communications network wherein data transmitted over a radio interface is coded and transmitted in radio blocks. The data passes a buffer of a node before transmission. The method is characterized by a step of determining a recommended Modulation and Coding Scheme level, MCS level, based on at least one radio quality measurement. A further characterizing step is analyzing of buffer characteristics and/or radio block usage of transmission radio blocks to determine if there is a preferred MCS level compared to the recommended MCS level. The preferred MCS level is typically a more robust MCS level. The recommended MCS, level if so determined, is decreased to the preferred MCS level, and in relation to decreasing the MCS level decreasing the output power according to a predefined down regulation scheme. The interference level is reduced in the network depending on an application type.Type: GrantFiled: March 26, 2007Date of Patent: March 20, 2012Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Peter Bjorken, Lars Klockar, Krister Sundberg
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Publication number: 20110300842Abstract: The present invention relates to a method for installing an end user controllable radio base station in a wireless communications network. The radio base station is adapted to provide access for the end user of wireless user equipment in the wireless communications network. The radio base station further comprises a display and a power level adjusting equipment. The method is characterized by a first step of connecting the radio base station to the wireless communications network. A second step is to activate a self configuration procedure of the radio base station. As a third step the display on the radio base station further displays instructions to the end user as part of the installation procedure. These instructions comprise a request for wireless user equipment activity. The activity of the wireless equipment is monitored, and the power level is adjusted, if needed, as a following step for completing the installation.Type: ApplicationFiled: August 14, 2007Publication date: December 8, 2011Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Peter Bjorken
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Publication number: 20110269405Abstract: According to the teachings presented herein, dynamic mapping is used to determine which multi-carrier power amplifiers (MC-PAs) provide the required transmit power for individual ones of the transmitters in a base station. With dynamic mapping, the required transmit power of any one or more of the transmitters can be distributed to more than one MCPA, providing for more efficient ‘packing’ of required transmit powers into the available transmit powers of the MCPAs, and/or providing for power mapping based on any one or more mapping criterion, As a non-limiting advantage, the dynamic mapping presented herein reduces the number of MCPAs needed to support a given number of transmitters.Type: ApplicationFiled: December 29, 2008Publication date: November 3, 2011Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Peter Björkén
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Publication number: 20110151906Abstract: In a method and a device for frequency planning of a multi carrier cellular radio system, a cost function that reflects a multi carrier function is used. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.Type: ApplicationFiled: August 21, 2007Publication date: June 23, 2011Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Fredric Kronestedt, Peter de Bruin, Peter Bjorken
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Publication number: 20100302960Abstract: The user equipment 12a and 12D comprises a radio transmitter 76 arranged to transmit data packets to the receiver 71 of the communication network entity 16 over the radio interface on the uplink channel 11 and a receiver 77 arranged to receive data packets transmitted from the transmitter 72 of the communication network entity 16 on the downlink channel 13. The user equipment 12a and 12b further comprises means 78 for analysing said received data packets as described above and in conjunction with FIG. 6. Thus, while there have been shown and described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention.Type: ApplicationFiled: October 25, 2007Publication date: December 2, 2010Inventors: Peter Björkén, Paul Schliwa-Bertling, Mårten Sundberg
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Publication number: 20100238817Abstract: In a method and a device for frequency planning of a cellular radio system with IRC. a cost function is provided that takes the IRC capabilities of the cellular system into account. Using the method and the device the frequency optimization can be made to take into account systems employing multi carrier techniques whereby the planning complexity and time for operators is reduced.Type: ApplicationFiled: September 3, 2007Publication date: September 23, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Peter Bjorken, Peter de Bruin, Fredric Kronestedt
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Publication number: 20100120464Abstract: The present invention presents a method for controlling output power and reducing interference in a radio communications network wherein data transmitted over a radio interface is coded and transmitted in radio blocks. The data passes a buffer of a node before transmission. The method is characterized by a step of determining a recommended Modulation and Coding Scheme level, MCS level, based on at least one radio quality measurement. A further characterising step is analyzing of buffer characteristics and/or radio block usage of transmission radio blocks to determine if there is a preferred MCS level compared to the recommended MCS level. The preferred MCS level is typically a more robust MCS level. The recommended MCS, level if so determined, is decreased to the preferred MCS level, and in relation to decreasing the MCS level decreasing the output power according to a predefined down regulation scheme. The interference level is reduced in the network depending on an application type.Type: ApplicationFiled: March 26, 2007Publication date: May 13, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Peter Bjorken, Lars Klockar, Krister Sundberg
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Publication number: 20100113029Abstract: A method for a network (100) with cells of first and a second kind with corresponding base stations. The network (100) comprises functions for control of the base stations of the first and second kinds and for handing over control of user terminals between base stations, the method being used when a user terminal (123) in a cell of the second kind (120-122) is handed over to a base station (111) of a cell (110) of the first kind. The method lets said control function (140) of the base station of the cell of the first kind send instructions to the control function (140) of the base station (111) of the second kind regarding at least one or more frequencies on which the base station of the second kind may operate, or an identity code which may be used by the base station of the second kind.Type: ApplicationFiled: March 30, 2007Publication date: May 6, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Peter Bjorken