Patents by Inventor Mats Sagfors

Mats Sagfors 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).

  • Patent number: 9042835
    Abstract: Measurement handling is of interest in a user equipment (UE) in connected mode, with the UE being configured with multiple downlink component carriers (CCs). The UE evaluates the signal quality of a specific CC of the configured CCs against a configurable threshold to determine the need for neighbor cell measurements. The UE performs neighbor cell measurements if the signal quality of the specific CC is below the configurable threshold. In this way, robust and efficient measurement handling is provided, even though the UE is configured with multiple component carriers.
    Type: Grant
    Filed: December 18, 2010
    Date of Patent: May 26, 2015
    Assignee: OPTIS CELLULAR TECHOLOGY, LLC
    Inventors: Mats Sågfors, Walter Müller
  • Patent number: 9014126
    Abstract: A method in a wireless communication system for reporting buffer information includes selecting a format for a buffer report based on a number of radio bearer groups, k, for which data is available for transmission by a user equipment. The buffer report indicates a respective buffer fill level for one or more radio bearer groups associated with the user equipment. The method also include encoding a buffer fill level for one or more radio bearer groups in a buffer report in accordance with the selected format and transmitting the buffer report.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 21, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Johan Torsner, Mats Sågfors, Stefan Wager
  • Patent number: 8971891
    Abstract: Methods and arrangements in a base station and a User Equipment are provided. The methods and arrangements relates to the scenario when the UE is handed over from a source base station to a target base station in a handover scenario, and wherein the target base station may not support functionalities which the source base station and the UE support. The method in the UE comprises receiving (501) a configuration message from the target base station via the source base station, configuring (502) the UE based on the received configuration message from the target base station by searching (503) for a second field in an information element of the received configuration message. The presence/non-presence or a value of the second field is indicative of how to manage a configured first functionality associated with an optional first field, wherein the configured first functionality may not be supported by the target base station.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Janne Peisa, Tao Cui, Ingrid Nordstrand, Mats Sågfors, Sven Ekemark
  • Patent number: 8966333
    Abstract: The present invention relates to a method and device for enhancing coverage of a power-limited mobile terminal by sending information relating to a single Hybrid Automatic Repeat Request (HARQ) process from the mobile terminal to a base station using several transmission time intervals.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 24, 2015
    Assignee: Optis Wireless Technology, LLC
    Inventors: Mats Sagfors, Michael Meyer, Per Johan Torsner, Henning Wiemann
  • Publication number: 20150023373
    Abstract: A method and nodes for providing adaptive segmentation in a higher protocol layer interacting with a lower protocol layer. An adaptable segmentation limit, defining a threshold of a largest Protocol Data Unit (PDU) that is to be submitted to a lower protocol layer, is deployed at a higher protocol layer interacting with the lower protocol layer. A PDU to be submitted to the lower protocol layer may match any transport block size that is available in the lower protocol layer. For each Service Data Unit (SDU) arriving at the higher protocol layer, it is determined if the respective SDU can fit into the segmentation limit or not. Each SDU that do not fit into the segmentation limit is segmented into PDUs which are smaller than or equal to the segmentation limit, while no segmentation is performed on SDUs that fit into the segmentation limit.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Inventors: Johan Torsner, Mats Sågfors
  • Publication number: 20150009802
    Abstract: The invention relates to a method in a user equipment and a user equipment (700) for controlling connection re-establishment between said user equipment and a network. The method comprises the steps of—receiving (501) a configuration message from the network defining at least one condition;—upon detection of connectivity problems (503) towards the first cell, evaluating said at least one condition (504);—if said at least one condition is fulfilled for a neighboring cell (B), applying at least one special criterion for initiating connection re-establishment to said neighboring cell (505), said at least one special criterion being different from at least one criterion that is applied if said at least one condition is not fulfilled. The invention furthermore relates to a method and an arrangement in a network node (800) for controlling connection re-establishment between the network and a user equipment (700).
    Type: Application
    Filed: March 15, 2012
    Publication date: January 8, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Wager, Mats Sågfors
  • Patent number: 8848617
    Abstract: The present invention relates to a method and system of transmissions and retransmissions of packet data in a communications system, where the communications system uses switched channels, switching between rates or channels of different characteristics, and connection control and management in such a system. Particularly, the invention relates to radio resource management in a Universal Mobile Telecommunications System, UMTS, or WCDMA system allowing for use of compatible protocols for non-switched and switched channels.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: September 30, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Mats Ságfors, Janne Peisa, Michael Meyer, Reiner Ludwig
  • Patent number: 8824362
    Abstract: The invention provides a method for transmitting a serving grant to a base station. In some embodiments the method includes: storing a serving grant in a storage unit, generating a layer two protocol data unit (L2 PDU); and transmitting the L2 PDU to the base station, wherein the step of generating the L2 PDU comprises adding the serving grant to the L2 PDU.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: September 2, 2014
    Assignee: Optis Wireless Technology, LLC
    Inventors: Jose Luis Pradas, Anna Larmo, Edgar Ramos, Mats Sagfors
  • Publication number: 20140219231
    Abstract: According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data.
    Type: Application
    Filed: April 23, 2014
    Publication date: August 7, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Per Beming, Janne Peisa, Mats Sågfors, Johan Torsner, Stefan Wager
  • Publication number: 20140192664
    Abstract: The invention relates to a method (90) in a user equipment (4) for reporting a downlink channel quality in a communication system (1) comprising a first radio access technology system (2) and a second radio access technology system (3). The user equipment (4) is in connection with a primary serving cell on the first radio access technology system (2) and with a secondary serving cell on the second radio access technology system (3).
    Type: Application
    Filed: February 17, 2012
    Publication date: July 10, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Mårten Ericson, Bengt Lindoff, Stefan Parkvall, Mats Sågfors
  • Publication number: 20140194108
    Abstract: The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment (18) in a communication network. The state transition time is reduced by retaining in the user equipment (18) one or more information parameter, such as the radio network temporary identifier for a high speed downlink shared channel (H-RNTI), when performing a state transition to said power saving state so as to enable a time reduction when said user equipment switches back from said power saving state.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 10, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Janne Peisa, Stefan Wager, Johan Torsner, Mats Sågfors
  • Patent number: 8774138
    Abstract: In a method and a device for selecting transport format in a User Equipment transmitting data in a cellular radio system using an Enhanced Uplink (EUL) with Discontinuous Reception (DRX) the determination of whether or not to transmit data in the next Transmission Time Interval (TTI) is based on the amount of data in the User Equipment transmission buffer.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: July 8, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Edgar Ramos, Mats Sagfors
  • Publication number: 20140177505
    Abstract: The invention provides for a method and a node for integrating the devices (20a-20g) of a meshed multi-hop network (20) in a mobile communication network (10). The method comprises the following steps: attaching at least one device of said meshed multi-hop network to said mobile communication network, retrieving, in at least one node of said mobile communication network, from at least one base station of said mobile communication network, information about the devices of said meshed multi-hop network that may be accessed through said base station, and storing, in said node (11) for each device, said information such that said node knows, for each device, through which base stations (23) it may be accessed. Thereby, the meshed multi-hop network is integrated in the mobile communication network.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Jari ARKKO, Fredrik Garneij, Jan Melen, Mats Sagfors
  • Publication number: 20140180960
    Abstract: In one aspect, there is provided a method for issuing a ticket to a customer to a queue of a service function. In some embodiment the method includes: providing a queue ticket terminal in a predetermined space associated with said service function; and enabling a customer to be allocated a queue ticket from said terminal. The method further comprising: detecting, in a mobile device associated with said customer, whether said queue ticket terminal is in the vicinity of said mobile device; transmitting a queue ticket request from said mobile device to said queue ticket terminal; and, receiving, in said mobile device and in response to said queue ticket request, a queue position message comprising information relating to the customer's position in said queue.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Mats SAGFORS, Jari ARKKO, Fredrik GARNEIJ, Jan MELEN
  • Publication number: 20140169285
    Abstract: The disclosure relates to a method of managing aggregated devices being attached to a mobile communication network via at least one aggregating device; said aggregating device being attached directly to a radio base station of said mobile communication network. The method comprises retrieving, information regarding at least one aggregated device attached to a respective aggregating device, storing said information in said node, such that the node comprises information about aggregated devices attached to said mobile communication network and providing, said information for managing said aggregated devices. The disclosure also relates to a network node, an aggregating device and an aggregated device.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 19, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Mats SAGFORS, Jari ARKKO, Fredrik GARNEIJ, Jan MELEN
  • Publication number: 20140171027
    Abstract: The invention relates to a method for authenticating a device, comprising a network communication unit and tagging circuit, in a mobile communication network, using a mobile entity comprising a tagging circuit and being authenticated to the mobile communication network. The method comprises the following steps; the mobile entity establishing a connection with the device, using said tagging circuit, exchanging authentication data between the mobile entity and the device using the tagging circuit and authenticating the device to the mobile communication network by submission of exchanged authentication data in the mobile communication network. Thereby, the permissions of a mobile entity may be shared with another device by tagging. The invention also relates to a corresponding mobile entity, device, node and computer program product.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 19, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jari Arkko, Fredrik Garneij, Jan Melen, Mats Sagfors
  • Patent number: 8755337
    Abstract: According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: June 17, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Per Beming, Janne Peisa, Mats Sagfors, Johan Torsner, Stefan Wager
  • Publication number: 20140153521
    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: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Mats SAGFORS, Magnus LINDSTROM, Janne PEISA, Johan TORSNER, Stefan WAGNER
  • Patent number: 8718695
    Abstract: The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment (18) in a communication network. The state transition time is reduced by retaining in the user equipment (18) one or more information parameter, such as the radio network temporary identifier for a high speed downlink shared channel (H-RNTI), when performing a state transition to said power saving state so as to enable a time reduction when said user equipment switches back from said power saving state.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: May 6, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Janne Peisa, Johan Torsner, Mats Sagfors, Stefan Wager
  • Patent number: 8717908
    Abstract: Methods and apparatus for selecting component carriers for random access attempts. A user equipment arranged to communicate with the base station over multiple component carriers, selects a component carrier from the multiple component carriers, based on a likelihood, and transmits a random access attempt to the base station over the selected component carrier. After maintaining statistics of component carriers selected for random access attempts per component carrier of the multiple component carriers, the user equipment adjusts the likelihood of selecting a specific component carrier for a subsequent transmission of a random access attempt based on the maintained statistics.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: May 6, 2014
    Assignee: Optis Cellular Technology, LLC
    Inventors: Robert Baldemair, Mats Sågfors, Magnus Stattin