Patents by Inventor Magnus Lindstrom

Magnus Lindstrom 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).

  • Publication number: 20110296181
    Abstract: The embodiments of the present invention relate to apparatuses in the form of a first network unit and a device, and also relates to a method for enabling protection of a bootstrap message in a device management network system. The method comprises: receiving at the first network unit, a request to bootstrap the device; transmit a request for a bootstrap key, to a second network unit; receiving a message comprising the bootstrap key and further comprises trigger information and transmitting the trigger information to the device to trigger generation of the bootstrap key internally in the device. Thereafter a protected bootstrap message can be transmitted to the device from the first network unit, and when the device verifies and/or decrypts the bootstrap message, device management (DM) sessions can start between the device and the first network unit.
    Type: Application
    Filed: October 1, 2009
    Publication date: December 1, 2011
    Inventors: Luis Barriga, Per-Anders Dysenius, Magnus Lindström
  • Publication number: 20110275381
    Abstract: An Uplink control channel resource Management Module (120, 130), referred to as “UMM”, and a method in the UMM for assigning, to a radio network node 110, uplink control channel resources, referred to as “UCCHR”, for use in a uplink control channel between the radio network node (110) and a communication device (160) are provided. The UMM obtains (210) resource allocation information, referred to as “RAI”, and generates (220) a resource allocation command, referred to as “RAC”, based on the RAI. The RAC indicates UCCHR to be used by the radio network node. Furthermore, the UMM provides (230) the RAC to the radio network node (110). Related methods and nodes to enable the UMM to assign UCCHR are also provided.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 10, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Peter Moberg, Joakim Bergström, Magnus Lindström, Gunnar Mildh
  • Publication number: 20110205928
    Abstract: Methods and apparatus for controlling discontinuous receiver operation in a wireless communication device are disclosed. In an exemplary embodiment, a wireless communication device (150) configured to monitor a downlink signal during a series of regularly scheduled awake intervals and monitor the downlink signal for retransmissions during retransmission-monitoring intervals scheduled at a first predetermined delay from each detected data transmission to the receiver includes a control circuit (175) configured to detect that a first retransmission-monitoring interval overlaps a previously scheduled radio activity during which the receiver is unavailable to monitor the first downlink signal, such as a measurement gap, and to adjust the first retransmission-monitoring interval, add an additional retransmission-monitoring interval, or both, responsive to said detecting.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 25, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ghyslain Pelletier, Magnus Lindström
  • Publication number: 20110207485
    Abstract: Embodiments herein relate to a method in a user equipment for handling a radio link failure in a radio communications network. The user equipment is served in a first cell controlled by a radio base station. The radio base station is comprised in the radio communications network, The user equipment detects a first indication of a failure of a radio link between the user equipment and the radio base station. The user equipment then transmits a second indication of radio link failure to the radio base station when the first indication is detected.
    Type: Application
    Filed: December 23, 2010
    Publication date: August 25, 2011
    Inventors: Konstantinos Dimou, Magnus Lindström, Wei Zhao
  • Publication number: 20110200032
    Abstract: Methods and arrangements for adjusting timing of transmissions in a radio communication system in which aggregation of component carriers is employed are disclosed. A base station sends a first TA command applicable to a first component carrier to a user equipment. A need to maintain different uplink transmission timing for the first user equipment component carrier and second uplink component carrier is detected by the base station. The base station then sends a second TA command based on the detected need to maintain different uplink transmission timing. The second TA command is applicable to uplink transmissions on the first component carrier and/or the second component carrier. The user equipment adjusts uplink transmissions on the first component carrier and/or the second uplink component carrier based on the second timing advance command.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Magnus LINDSTRÖM, Lisa BOSTRÖM, Janne PEISA, Mats SAGFORS, Henning WIEMANN
  • Publication number: 20110188422
    Abstract: The present invention relates to a method and apparatus for requesting scheduling of resources to be used for uplink communication of data in a communications system. If the repeated transmission by a user equipment of scheduling requests on an uplink control channel is determined to be unsuccessful, a random access transmission on a random access channel is initiated as a fallback procedure.
    Type: Application
    Filed: December 22, 2008
    Publication date: August 4, 2011
    Applicant: Telefonaktiebolaget L M Ericsson
    Inventors: Jessica Ostergaard, Carola Faronius, Anders Furuskar, Magnus Lindstrom, Peter Moberg, Walter Muller, Ghyslain Pelletier, Mats Sagfors, Johan Torsner
  • Publication number: 20110176500
    Abstract: In one aspect of the disclosed teachings, associating a plurality of contention-based uplink grants with a range of uplink resource blocks allows one contention-based uplink grant message to signal the entire plurality of grants. As an example in the LTE context, the signaling load on the PDCCH is reduced by using a single contention-based uplink grant message to signal a plurality of contention-based uplink grants. The message indicates an allocated set of uplink resource blocks and the number of separate uplink resource grants represented by the set is known or signaled, such that user terminals recognize that separate subsets of uplink resource blocks within the set each correspond to a separate contention-based uplink grant. Information included in the contention-based uplink grant message, or otherwise signaled can be used to control the probability at which the user terminals attempt contention-based uplink transmissions and/or to control the MCS used for such transmissions.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 21, 2011
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Wager, Henrik Enbuske, Anders Furuskär, Anna Larmo, Magnus Lindström, Michael Meyer
  • Publication number: 20110145672
    Abstract: Techniques for controlling synchronous HARQ retransmissions are disclosed, in which non-adaptive retransmissions scheduled for a first transmission time interval are automatically deferred to a later transmission time interval in the event that a control message prohibiting the retransmission during the first transmission interval is received. In an exemplary method, a NACK message is received (320) in response to a previous data transmission corresponding to a stop-and-wait HARQ process, and a synchronous HARQ retransmission is scheduled (330) for a first transmission interval in response. A control message indicating that data for the stop- and-wait HARQ process may not be sent during the first transmission interval is received, and the synchronous HARQ retransmission is automatically deferred (350) to a second transmission interval, responsive to the control message. An explicit grant is not required to trigger the retransmission during the second transmission interval.
    Type: Application
    Filed: January 30, 2009
    Publication date: June 16, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: George Jongren, Magnus Lindstrom, Henning Wiemann
  • Publication number: 20110134780
    Abstract: In a method and a device for requesting Channel Quality Indication (CQI) reports from a mobile station of a cellular radio system, the CQI reports are requested in response to a measured Block Error Rate (BLER) of transmissions from the mobile station. In accordance with one embodiment of the present invention a CQI report is requested if the BLER of the mobile station is above a predetermined threshold value C. The threshold value C can be set to a value related to the BLER target. In particular the value C can be set to the same value or as a value close the BLER that is targeted to try to adapt the CQI report request to how well the base station knows the channel. It can also be set higher or lower to also consider how much CQ1 reporting the base station estimates can be afforded when it comes to uplink resources and uplink grant signaling in the downlink.
    Type: Application
    Filed: May 26, 2008
    Publication date: June 9, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Kristina Jersenius, Eva Englund, Magnus Lindstrom, Henning Wiemann
  • Publication number: 20110124360
    Abstract: The present invention relates to method and arrangements for using an identifier of a predefined type, e.g. an RNTI identifying one configuration on an out-band control channel for activating the configuration identifiable by that identifier. The identifier is sent from the network to the UE, when a configuration corresponding to that identifier is to be activated. This implies that both the UE and the radio base station comprise a mapping between each configuration and the corresponding identity of each configuration.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 26, 2011
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSSON (PUBL)
    Inventors: Mats Sâgfors, Magnus Lindström, Janne Peisa, Johan Torsner, Stefan Wager
  • Publication number: 20110105105
    Abstract: The present invention relates to methods, a user equipment and a radio base station in a wireless communication system supporting carrier aggregation. The user equipment is configured to receive data from the radio base station in a first cell, and the radio base station is configured to broadcast system information comprising configuration parameters in the first and in a second cell. An example method for the user equipment comprises receiving configuration information for an aggregation of the first and the second cell, and information on how to apply the system information broadcasted in the second cell from the radio base station. The method further comprises reading the system information broadcasted in the second cell, and applying the read system information in accordance with the received instruction.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 5, 2011
    Inventors: Mats Fredrik Sâgfors, Robert Baldemair, Magnus Lindström
  • Publication number: 20110105165
    Abstract: The present invention relates to methods and arrangements in a wireless communication system supporting carrier aggregation and comprising a radio base station configured to broadcast system information in at least two cells. The method for the user equipment comprises receiving configuration information for an aggregation of the at least two cells from the radio base station, identifying a first of the at least two cells based on a configuration rule stating that the first of the at least two cells has a status that is different from the status of the remaining cells, and reading the broadcasted system information only in the identified cell. The method may also comprise obeying one or more parameters obtained from the read system information.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 5, 2011
    Inventors: Mats Fredrik Sàgfors, Robert Baldemair, Magnus Lindström
  • Publication number: 20110096671
    Abstract: A user equipment connection supervision method in a user equipment, of a network node initiated random access procedure to force a declaration of connection failure is provided. The user equipment is connected to a wireless communication network via a wireless connection to the network node. After receiving (401) one or more commands from the network node, to perform random access procedure, the user equipment performs one or more attempts to initiate random access procedure by sending (402) one or more access request messages to the network node as a response to the received command. When no response to the sent access request message is received from the network node within a predetermined threshold value, the user equipment declares (406) failure of the wireless connection.
    Type: Application
    Filed: January 16, 2009
    Publication date: April 28, 2011
    Inventors: Magnus Lindström, Mats Sågfors
  • Publication number: 20110096748
    Abstract: The present invention relates to methods and apparatuses (radio base station (120, 600) and UE (110, 700) for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE (110, 700) can then use the received information and based on that information perform a random access.
    Type: Application
    Filed: December 19, 2008
    Publication date: April 28, 2011
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Michael Meyer, Magnus Lindström
  • Publication number: 20110092201
    Abstract: The present invention comprises a method and an arrangement for priority handling between a measurement gap procedure and an uplink data transmission procedure in an evolved UTRAN. The user equipment (UE) detects an active measurement gap. When the UE receives data into the transmission buffer the received data triggers an uplink data transmission procedure such as a scheduling request procedure or a random access procedure. An evaluation on characteristics information associated with the received data is performed and based on the performed evaluation the UE proceeds with the uplink data transmission procedure or the measurement gap procedure. In case the characteristics information associated with the received data is of high priority, the UE proceeds with the uplink data transmission procedure and cancels the measurement gap procedure.
    Type: Application
    Filed: June 18, 2009
    Publication date: April 21, 2011
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Magnus Lindström, Ghyslain Pelletier
  • Publication number: 20110080825
    Abstract: The teachings presented herein enable a user terminal to perform a fast recovery from a radio link failure. In one aspect, the improvement in recovery time is achieved by commanding or otherwise causing the user terminal to perform radio link failure (RLF) recovery at a cell that is known to possess the user context, while considering that this cell should yield good radio conditions (if not the best) to the user terminal. A cell may be predefined for use by the user terminal in recovering its radio connection. Based on providing signal strength thresholds to the user terminal, for use in determining whether to use a predefined cell for reconnecting to the network, the user terminal attempts RLF recovery first in the predefined cell. By providing user context to the predefined cell in advance of a recovery attempt by the user terminal, the time for recovery is lessened. Note that the user terminal also may infer which cells are preferred.
    Type: Application
    Filed: January 16, 2009
    Publication date: April 7, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Konstantinos Dimou, Muhammad Kazmi, Magnus Lindstrom, Gunnar Mildh, Mats Sagfors
  • Publication number: 20110044195
    Abstract: The present invention relates to a method and to a transceiver (400) for detecting HARQ transmission failure in a telecommunications system. The transceiver (400) is arranged to execute a HARQ process which is used to generate a transmission of data units to e.g. a eNodeB. The transceiver is also arranged to determine when a maximum number of transmission attempts is reached and when this occurs to flush a HARQ buffer associated with the HARQ process and to detect that a HARQ transmission failure has occurred when the last HARQ feedback received for the current HARQ process is not a HARQ ACK.
    Type: Application
    Filed: December 19, 2008
    Publication date: February 24, 2011
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Henning Wiemann, Magnus Lindstrom, Michael Meyer, Janne Peisa
  • Publication number: 20110026625
    Abstract: A method implemented at a user equipment (UE) may include receiving a grant from a base station permitting the user equipment to transmit data to the base station and transmitting data to the base station, where the data includes a buffer status report (BSR) that indicates an amount of data in a buffer of the UE. The method may further include starting or restarting a discontinuous reception (DRX) timer when the data including the BSR is transmitted to the base station. The method may additionally include monitoring (730) a control channel during a duration of the DRX timer. In another implementation, a method may include receiving a feedback message in response to the data transmission including the BSR, and starting or restarting the discontinuous reception (DRX) timer when the feedback message is received. The feedback message may include an acknowledgement (ACK) or a negative acknowledgement (NACK).
    Type: Application
    Filed: December 8, 2008
    Publication date: February 3, 2011
    Applicant: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Riikka Susitaival, Magnus Lindstrom, Ghyslain Pelletier, Anna Larmo
  • Publication number: 20110007698
    Abstract: The present invention relates to an improved procedure for synchronization of re-configuration of RRC procedures between the radio base station and the UE. This is achieved by associating a new configuration to be used by a UE with an additional UE identity. The UE is normally identified by a first UE identity, but is informed in a re-configuration message that the UE also has the additional UE identity. The UE is identified by the additional UE identity when the new configuration is to be activated. Hence, when the radio base station detects that the UE responds to requests, which included the additional UE identity, the radio base station can conclude that the UE has activated the new configuration.
    Type: Application
    Filed: December 16, 2008
    Publication date: January 13, 2011
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mats Sagfors, Magnus Johansson, George Jongren, Magnus Lindstrom, Johan Torsner
  • Publication number: 20100330959
    Abstract: The present invention relates to methods and arrangements for handling UE capability information a mobile telecommunications network wherein an eNodeB (100) receives (60) information regarding the UE capability information from the UE (120) and stores (70) the information. The eNodeB (100) sends (80) the UE capability information to the EPC, i.e. the MME (130). The MME (130) receives and stores (90) the UE capability information. When the UE (120) transits from idle to active state, does an initial attach or when a part of the UE capabilities have changed, it sends (10) a message Ma to the eNodeB (100) regarding the update. The eNodeB (100) receives the message and sends (20) it to the MME (130). The MME (130) sends (30) a response associated with the previously stored UE capability information to the eNodeB (100). The eNodeB (100) decides (40) if the UE capabilities stored in the MME (130) is up-to-date based on the message sent from the UE (120) and the received response from the MME (130).
    Type: Application
    Filed: May 15, 2008
    Publication date: December 30, 2010
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Gunnar Mildh, Magnus Lindström, Ingrid Nordstrand, András Rácz, Pontus Wallentin