Patents by Inventor Petter Bergman
Petter Bergman 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: 9730123Abstract: It is presented a method, executed in a root sequence determiner for a base station controlling a first cell, the first cell being associated with at least one root sequence used for cell differentiation on a random access channel. The method comprises the steps of: obtaining information on root sequences of neighboring cells; when a root sequence conflict is found between the first cell and a neighboring cell, here denoted a conflict cell, determining if the conflict cell is of a higher priority than the first cell, the priorities of the first cell and the conflict cell being based on properties of the respective cells; and when the conflict cell is of a higher priority than the first cell, finding a new root sequence for the first cell, avoiding the root sequences of the neighboring cells.Type: GrantFiled: August 22, 2011Date of Patent: August 8, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Petter Bergman, Stefan Engström
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Patent number: 9585041Abstract: Embodiments of the disclosure provide a method and apparatus for detecting a sleeping cell. According to the method, amount of traffic-related activities in a candidate cell may be monitored in an observation period; accumulated amount may be calculated based on the monitored amount of traffic-related activities; and whether the candidate cell is a sleeping cell may be determined based on the accumulated amount. The accumulated amount may indicate accumulation of amount of traffic-related activities monitored in an accumulation period comprising at least one observation period.Type: GrantFiled: May 22, 2012Date of Patent: February 28, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Min Huang, Petter Bergman, Mehdi Amirijoo
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Patent number: 9445324Abstract: The embodiments disclosed relates to a method and a network node that determines a time period between a first handover and a second handover of a user equipment. The first handover is to or from a first cell and the second handover is to or from a second cell. The network node sets a threshold value based on a difference in cell quality between the first cell and the second cell. The difference in cell quality is associated with the first or second handover. The network node then determines the type of handover, of at least one of the first and second handover, based on the time period and threshold value.Type: GrantFiled: March 28, 2012Date of Patent: September 13, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSONInventors: Mehdi Amirijoo, Walter Müller, Peter Werner, Petter Bergman
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Patent number: 9398478Abstract: Embodiments herein relate to a method in a first radio base station (12) for enabling detection of a faulty antenna in a radio communications network. The radio communication network comprises the first radio base station (12) providing radio coverage in a first cell (14), and a second radio base station (13) providing radio coverage in a second cell (15). The first radio base station (12) receives, from at least one user equipment in the first cell (14), a first set of measurement reports over a first period of time. At least some measurement reports are indicating a cell relation between the first cell (14) and the second cell (15). The first radio base station (12) further forms reference statistics of the cell relation between the first cell (14) and the second cell (15) based on the first set of measurement reports. Furthermore, the first radio base station (12) receives, from at least one user equipment in the first cell (14), a second set of measurement reports over a second period of time.Type: GrantFiled: July 22, 2011Date of Patent: July 19, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Tobias Ahlström, Petter Bergman
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Patent number: 9392513Abstract: The invention relates to a method and device (32) for adapting a range for a handover parameter used in a mobility function and a load balancing function for a first cell in relation to a second cell, where the device is implemented in a node (14) in the wireless communication network and comprises an event monitoring unit (34) configured to monitor handover events and a range setting unit (36) configured to determine the handover parameter range as well as to adapt the handover parameter range based on the monitored handover events.Type: GrantFiled: March 13, 2012Date of Patent: July 12, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Min Huang, Petter Bergman, Guo Chen, Xiaodong Yang
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Patent number: 9119122Abstract: It is presented a method for adjusting handover parameters of a processed base station in relation to neighboring base stations, neighboring the processed base station. The method being executed in a handover parameter determiner and comprises: obtaining (20) a list of neighboring base stations of the mobile communication network; determining (22), for each of the neighboring base stations in the list, a capability to send handover issue report messages; and adjusting (24) the handover parameters based on the determined capabilities for each of the neighboring base stations in the list.Type: GrantFiled: April 12, 2011Date of Patent: August 25, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Petter Bergman, Peter Werner
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Publication number: 20150172939Abstract: Embodiments of the disclosure provide a method and apparatus for detecting a sleeping cell. According to the method, amount of traffic-related activities in a candidate cell may be monitored in an observation period; accumulated amount may be calculated based on the monitored amount of traffic-related activities; and whether the candidate cell is a sleeping cell may be determined based on the accumulated amount. The accumulated amount may indicate accumulation of amount of traffic-related activities monitored in an accumulation period comprising at least one observation period.Type: ApplicationFiled: May 22, 2012Publication date: June 18, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Min Huang, Petter Bergman, Mehdi Amirijoo
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Publication number: 20150133119Abstract: The invention relates to a method and device (32) for adapting a range for a handover parameter used in a mobility function and a load balancing function for a first cell in relation to a second cell, where the device is implemented in a node (14) in the wireless communication network and comprises an event monitoring unit (34) configured to monitor handover events and a range setting unit (36) configured to determine the handover parameter range as well as to adapt the handover parameter range based on the monitored handover events.Type: ApplicationFiled: March 13, 2012Publication date: May 14, 2015Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Min Huang, Petter Bergman, Guo Chen, Xiaodong Yang
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Publication number: 20150119040Abstract: The embodiments disclosed relates to a method and a network node that determines a time period between a first handover and a second handover of a user equipment. The first handover is to or from a first cell and the second handover is to or from a second cell. The network node sets a threshold value based on a difference in cell quality between the first cell and the second cell. The difference in cell quality is associated with the first or second handover. The network node then determines the type of handover, of time period at least one of the first and second handover, based on the time period and threshold value.Type: ApplicationFiled: March 28, 2012Publication date: April 30, 2015Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Mehdi Amirijoo, Walter Müller, Peter Werner, Petter Bergman
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Publication number: 20140211606Abstract: It is presented a method, executed in a root sequence determiner for a base station controlling a first cell, the first cell being associated with at least one root sequence used for cell differentiation on a random access channel. The method comprises the steps of: obtaining information on root sequences of neighbouring cells; when a root sequence conflict is found between the first cell and a neighbouring cell, here denoted a conflict cell, determining if the conflict cell is of a higher priority than the first cell, the priorities of the first cell and the conflict cell being based on properties of the respective cells; and when the conflict cell is of a higher priority than the first cell, finding a new root sequence for the first cell, avoiding the root sequences of the neighbouring cells.Type: ApplicationFiled: August 22, 2011Publication date: July 31, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Petter Bergman, Stefan Engström
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Publication number: 20140194113Abstract: Embodiments herein relate to a method in a first radio base station (12) for enabling detection of a faulty antenna in a radio communications network. The radio communication network comprises the first radio base station (12) providing radio coverage in a first cell (14), and a second radio base station (13) providing radio coverage in a second cell (15). The first radio base station (12) receives, from at least one user equipment in the first cell (14), a first set of measurement reports over a first period of time. At least some measurement reports are indicating a cell relation between the first cell (14) and the second cell (15). The first radio base station (12) further forms reference statistics of the cell relation between the first cell (14) and the second cell (15) based on the first set of measurement reports. Furthermore, the first radio base station (12) receives, from at least one user equipment in the first cell (14), a second set of measurement reports over a second period of time.Type: ApplicationFiled: July 22, 2011Publication date: July 10, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Tobias Ahlström, Petter Bergman
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Patent number: 8718583Abstract: The invention relates to a method for configuring a set of multi-carrier power amplifiers, MCPAs, to provide power amplification for a set of base station transmitters. The method is characterized by switching at least a first MCPA in the set of multi-carrier power amplifiers such that the at least first MCPA stops providing power amplification to at least a first subset of the set of base station transmitters, and switching at least a second MCPA in the set of multi-carrier power amplifiers such that the at least second MCPA starts to provide power amplification to the at least first subset of the set of base station transmitters. The invention also relates to a distributing unit connectable to such a base station and a base station comprising a distributing unit.Type: GrantFiled: November 3, 2011Date of Patent: May 6, 2014Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Petter Bergman
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Publication number: 20140024374Abstract: It is presented a method for adjusting handover parameters of a processed base station in relation to neighbouring base stations, neighbouring the processed base station. The method being executed in a handover parameter determiner and comprises: obtaining (20) a list of neighbouring base stations of the mobile communication network; determining (22), for each of the neighbouring base stations in the list, a capability to send handover issue report messages; and adjusting (24) the handover parameters based on the determined capabilities for each of the neighbouring base stations in the list.Type: ApplicationFiled: April 12, 2011Publication date: January 23, 2014Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Petter Bergman, Peter Werner
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Patent number: 8565156Abstract: A base station as presented herein improves random access. The base station comprises a radio unit comprising a transceiver and an antenna; a message receiver arranged to receive random access preamble messages with a preamble, from mobile communication terminals, on a random access channel; a distance determiner arranged to, for each random access preamble message, determine whether the corresponding mobile communication terminal is further away than an outer threshold distance from the radio unit; and a radius adjuster arranged to, when it is determined that there is more than a threshold magnitude of mobile communication terminals being further away than the outer threshold distance, increase the outer threshold distance and a random access cell radius of the radio unit. In other words, when many mobile communication terminals are determined to be far away, the random access cell radius is increased, allowing dynamic resizing of the random access cell.Type: GrantFiled: March 21, 2011Date of Patent: October 22, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Petter Bergman
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Publication number: 20120236737Abstract: A base station as presented herein improves random access. The base station comprises a radio unit comprising a transceiver and an antenna; a message receiver arranged to receive random access preamble messages with a preamble, from mobile communication terminals, on a random access channel; a distance determiner arranged to, for each random access preamble message, determine whether the corresponding mobile communication terminal is further away than an outer threshold distance from the radio unit; and a radius adjuster arranged to, when it is determined that there is more than a threshold magnitude of mobile communication terminals being further away than the outer threshold distance, increase the outer threshold distance and a random access cell radius of the radio unit. In other words, when many mobile communication terminals are determined to be far away, the random access cell radius is increased, allowing dynamic resizing of the random access cell.Type: ApplicationFiled: March 21, 2011Publication date: September 20, 2012Inventor: Petter Bergman
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Publication number: 20120071196Abstract: The invention relates to a method for configuring a set of multi-carrier power amplifiers, MCPAs, to provide power amplification for a set of base station transmitters. The method is characterized by switching at least a first MCPA in the set of multi-carrier power amplifiers such that the at least first MCPA stops providing power amplification to at least a first subset of the set of base station transmitters, and switching at least a second MCPA in the set of multi-carrier power amplifiers such that the at least second MCPA starts to provide power amplification to the at least first subset of the set of base station transmitters. The invention also relates to a distributing unit connectable to such a base station and a base station comprising a distributing unit.Type: ApplicationFiled: November 3, 2011Publication date: March 22, 2012Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventor: Petter Bergman