Patents by Inventor Hannes Ekstroem
Hannes Ekstroem 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: 20130336124Abstract: The present invention relates to a partitioning entity and a method for partitioning capacity in a communication network to avoid starvation of certain data traffic and to support services with different characteristics. The method of partitioning capacity comprises assigning communication links to a group associated with a time-varying group capacity to form a group of communication links. The group comprises a first sub-group and at least a second sub-group of communication links. Further, the method comprises allocating a non-zero fraction of the time-varying group capacity to the first sub-group of communication links of the group.Type: ApplicationFiled: August 21, 2013Publication date: December 19, 2013Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Reiner Ludwig, Hannes Ekström
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Patent number: 8542584Abstract: The present invention relates to a partitioning entity and a method for partitioning capacity in a communication network to avoid starvation of certain data traffic and to support services with different characteristics. The method of partitioning capacity comprises assigning communication links to a group associated with a time-varying group capacity to form a group of communication links. The group comprises a first sub-group and at least a second sub-group of communication links. Further, the method comprises allocating a non-zero fraction of the time-varying group capacity to the first sub-group of communication links of the group.Type: GrantFiled: September 4, 2008Date of Patent: September 24, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Reiner Ludwig, Hannes Ekström
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Patent number: 8537688Abstract: The invention discloses a method (1100) for a cellular wireless access TDD system (100) with a base stations (120, 220) for respective cells (110, 210) in the system, where each cell can accommodate at least a first user terminal (130, 230). The user terminals can receive traffic from their base stations during a down link period, and can transmit traffic to their base stations (120, 220) during an up link period (UL). There is a first guard period (TDu) at the transition from down link to up link, and a second guard period (TUD) at the transition from up link to down link. The method comprises measuring the interference level in a second plurality (110, 210) of cells during part of the time between two consecutive down link periods, and varying the duration of said first and/or second guard period in said second plurality of cells (110, 210) according to the interference level.Type: GrantFiled: February 23, 2007Date of Patent: September 17, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: David Astely, Per Skillermark, Tobias Tynderfeldt, Erik Westerberg, Hannes Ekström
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Patent number: 8509122Abstract: The invention discloses a method (800) for use in a cellular wireless system (100) with a base station (120), a cell (110) in the system and a first user terminal (130) which can be scheduled for receiving traffic from the base station during a down link period, and for transmitting traffic to the base station during an up link period. There is a first guard period (TUD) between the up link period and the down link period, and a second guard period (TDU) between the down link period and the up link period. The method (800) comprises measuring the interference level in the cell for part of the time between two consecutive down link periods, and varying at least one of the following in accordance with the measured interference level: the duration of the first or second guard period, the duration of the up link period, or the traffic sent in the up link period.Type: GrantFiled: January 16, 2007Date of Patent: August 13, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: David Astely, Hannes Ekström, Alireza Nejatian, Per Skillermark, Tobias Tynderfeldt, Erik Lars Westerberg
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Publication number: 20130136091Abstract: For efficiently handling network traffic via a fixed access, classification of UL data traffic in a communication device (100) may be accomplished in a reflective mode by detecting identifiers of outgoing uplink data packets which are complementary to identifiers of incoming downlink data packets. The downlink data packets are already assigned to the traffic classes (50). The outgoing uplink data packets carrying the complementary identifier are assigned to the same traffic class (50) as the incoming downlink data packets. For this purpose, the communication device (100) is provided with a traffic classificator (110). In the reflective mode, the traffic classificator (110) locally generates uplink packet classification rules (115) by monitoring received downlink data packets.Type: ApplicationFiled: July 29, 2010Publication date: May 30, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Reiner Ludwig, Hannes Ekström
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Patent number: 8412160Abstract: The technology described relates to management of data packets and buffers comprising segments of data packets in a mobile communication system. Information associated with data packet segments is analyzed by a Base Station System (BSS) housing a data buffer. Based on this information analysis, the BSS can identify those segments in the buffer that constitute a complete data packet. Once identified, the segments can be discarded from the buffer. The information can include size information, whereby the analysis comprises pairwise comparing the size of a current segment with the size of a next consecutive segment. This size comparison enables identification of a first segment and a last segment of the complete data packet. The information could also, or alternatively, include a notification provided in the header of the segment. This notification identifies the associated segment as the first or last segment of the data packet or an intermediate segment.Type: GrantFiled: January 27, 2012Date of Patent: April 2, 2013Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ingo Meirick, Håkan Nordström, Erik Westerberg, Paul Schliwa-Bertling, Hannes Ekström
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Publication number: 20120275367Abstract: In a mobile communication network, data traffic of a certain quality of service class is forwarded in accordance with a traffic forwarding policy associated with this quality of service class, e.g. by establishing dedicated bearers (52, 54). For implementing energy control, an energy control attribute is assigned to the quality of service class. On the basis of the energy control attribute, a data throughput for forwarding the data traffic is limited to a maximum limit. This may be accomplished by using a throughput limiter (150, 250) in one or more nodes (100, 110, 120, 200) participating in the transport of the data traffic.Type: ApplicationFiled: December 23, 2009Publication date: November 1, 2012Inventors: Reiner Ludwig, Hannes Ekström
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Patent number: 8200236Abstract: The invention aims to reduce the delay associated with setting up a session for a user terminal in a mobile communication network. A control unit for use in a wireless communication network for controlling a user terminal's ability to communicate with the network, comprising—at least one input for receiving event information about at least one trigger event indicating that the user terminal is likely to wish to communicate with the network within a predetermined period of time—decision logic for deciding whether the state of the terminal should be changed to enable it to communicate and—output means for triggering the a state change for the terminal to a state in which the terminal is able to communicate with the network, if the decision logic decides that this should be done.Type: GrantFiled: February 27, 2006Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Hannes Ekström, Reiner Ludwig, Pontus Wallentin, Béla Rathonyi
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Patent number: 8200838Abstract: A method of controlling the flow of an amount of data from a sending peer to a receiving peer of a predetermined communication protocol is described. The method comprises dividing the amount of data into a plurality of data segments, where the data segments are ordered in a sequence. The segments are sent to the receiving peer in the order of said sequence. The receiving peer acknowledges the correct receipt of a data segment and identifies the last correctly received data segment of the sequence that was received in the proper order of the sequence. The sending peer is arranged such that if it receives a threshold number of duplicate acknowledgements, it performs a retransmission. The threshold number that trigger a retransmission is an adaptive parameter determined based on the size of a receive window, the size of the receive window representing a number of data segments which can be stored in a buffer space at the receiving peer.Type: GrantFiled: December 22, 2004Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Reiner Ludwig, Hannes Ekström
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Publication number: 20120134264Abstract: In a mobile communication environment, the data traffic is mapped to a number of bearers (52, 54). In a downlink direction, this is accomplished by filtering data packets on the basis of an identifier which is included into the data packets in response to packet inspection. In the uplink direction, a mirroring function is applied which detects incoming data packets, which are received on one of a plurality of bearers (52, 54) and have a first identifier, and outgoing data packets having a second identifier which is complementary to the first identifier. The outgoing data packets having the complementary second identifier are routed to the same bearer (52, 54) from which the incoming data packets are received.Type: ApplicationFiled: April 2, 2009Publication date: May 31, 2012Inventors: Reiner Ludwig, Hannes Ekström
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Patent number: 8130074Abstract: The technology described relates to management of data packets and buffers comprising segments of data packets in a mobile communication system. Information associated with data packet segments is analyzed by a Base Station System (BSS) housing a data buffer. Based on this information analysis, the BSS can identify those segments in the buffer that constitute a complete data packet. Once identified, the segments can be discarded from the buffer. The information can include size information, whereby the analysis comprises pairwise comparing the size of a current segment with the size of a next consecutive segment. This size comparison enables identification of a first segment and a last segment of the complete data packet. The information could also, or alternatively, include a notification provided in the header of the segment. This notification identifies the associated segment as the first or last segment of the data packet or an intermediate segment.Type: GrantFiled: September 11, 2003Date of Patent: March 6, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ingo Meirick, H{dot over (a)}kan Nordstrom, Erik Westerberg, Paul Schliwa-Bertling, Hannes Ekström
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Patent number: 8081644Abstract: A method and device of controlling a queue buffer, in which a congestion notification procedure is conducted if a queue length parameter exceeds a threshold value, said threshold value being adapted automatically by a procedure that takes into account a flow control parameter.Type: GrantFiled: December 23, 2003Date of Patent: December 20, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Paul Schliwa-Bertling, Hannes Ekström, Reiner Ludwig
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Patent number: 8041837Abstract: A method for associating a data packet (DP) with a packet bearer (PB) in a user equipment (UE1) of a communication network is proposed. The packet bearer (PB) transmits the data packet to a communication entity in the communication network. The communication network comprises at least one control entity to exchange signaling information with the user equipment. The user equipment comprises at least one executing unit for executing one or more applications which create the data packet, a packet marking entity for marking at least one control field in the data packet and a transmission unit for sending the data packet on the packet bearer. After setting up the packet bearer between the transmission unit and the communication entity, a first signaling of filter parameters for defining a packet filter is received by the user equipment. The filter parameters correspond to a packet marking.Type: GrantFiled: January 10, 2006Date of Patent: October 18, 2011Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Hannes Ekström, Reiner Ludwig, Per Willars
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Publication number: 20110122886Abstract: A method is described for associating a data packet (DP) with a packet bearer (PB) in a user equipment (UE1) of a communication network. The data packet is sent in a data flow from an application function of the user equipment, the packet bearer (PB) is established with the user equipment to transmit the data packet (DP) over the communication network towards a further entity, and the user equipment is adapted to establish different packet bearers.Type: ApplicationFiled: January 20, 2011Publication date: May 26, 2011Inventors: Per Willars, Reiner Ludwig, Hannes Ekström, Henrik Basilier
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Patent number: 7907524Abstract: A method is described for associating a data packet (DP) with a packet bearer (PB) in a user equipment (UE1) of a communication network. The data packet is sent in a data flow from an application function of the user equipment, the packet bearer (PB) is established with the user equipment to transmit the data packet (DP) over the communication network towards a further entity, and the user equipment is adapted to establish different packet bearers.Type: GrantFiled: February 5, 2006Date of Patent: March 15, 2011Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Per Willars, Reiner Ludwig, Hannes Ekström, Henrik Basilier
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Publication number: 20110035495Abstract: A method for associating a data packet (DP) with a packet bearer (PB) in a user equipment (UE1) of a communication network is proposed. The packet bearer (PB) transmits the data packet to a communication entity in the communication network. The communication network comprises at least one control entity to exchange signaling information with the user equipment. The user equipment comprises at least one executing unit for executing one or more applications which create the data packet, a packet marking entity for marking at least one control field in the data packet and a transmission unit for sending the data packet on the packet bearer. After setting up the packet bearer between the transmission unit and the communication entity, a first signaling of filter parameters for defining a packet filter is received by the user equipment. The filter parameters correspond to a packet marking.Type: ApplicationFiled: January 10, 2006Publication date: February 10, 2011Inventors: Hannes Ekström, Reiner Ludwig, Per Willars
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Publication number: 20100136989Abstract: The present invention relates to radio communication in a cellular network and in particular to the sharing of a frequency spectrum with another network. The object is to enable robust communication in the shared band. The solution is to allocate a third band for communication in a cell. A L1/L2 control channel may be transmitted in the third band only, whereas data can be transmitted in the shared band. The L1/L2 control channel support the data communication in the shared band. The invention relates to a method and a radio base station.Type: ApplicationFiled: January 15, 2007Publication date: June 3, 2010Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Erik Westerberg, Andreas Olsson, Stefan Parkvall, Tobias Tynderfeldt, Hannes Ekström
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Publication number: 20100097963Abstract: The invention discloses a method (800) for use in a cellular wireless system (100) with a base station (120), a cell (110) in the system and a first user terminal (130) which can be scheduled for receiving traffic from the base station during a down link period, and for transmitting traffic to the base station during an up link period. There is a first guard period (TUD) between the up link period and the down link period, and a second guard period (TDU) between the down link period and the up link period. The method (800) comprises measuring the interference level in the cell for part of the time between two consecutive down link periods, and varying at least one of the following in accordance with the measured interference level: the duration of the first or second guard period, the duration of the up link period, or the traffic sent in the up link period.Type: ApplicationFiled: January 16, 2007Publication date: April 22, 2010Inventors: David Astely, Hannes Ekström, Alireza Nejatian, Per Skillermark, Tobias Tynderfeldt, Erik Westerberg
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Publication number: 20100029277Abstract: The present invention provides a method in a base station for transmitting cell information. The base station is comprised in a radio access network. The base station is adapted to communicate over a radio link with a user equipment located in a cell in the radio access network. The cell is served by the base station and is surrounded by neighbour cells. The method comprises the step of sending a message to the user equipment, using a point-to-point connection over the radio link.Type: ApplicationFiled: October 3, 2007Publication date: February 4, 2010Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Hannes Ekström, Mathias Cramby, Walter Müller, Göran Rune
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Publication number: 20090304015Abstract: A method is described for associating a data packet (DP) with a packet bearer (PB) in a user equipment (UE1) of a communication network. The data packet is sent in a data flow from an application function of the user equipment, the packet bearer (PB) is established with the user equipment to transmit the data packet (DP) over the communication network towards a further entity, and the user equipment is adapted to establish different packet bearers.Type: ApplicationFiled: February 5, 2006Publication date: December 10, 2009Inventors: Per Willars, Reiner Ludwig, Hannes Ekström, Henrik Basilier