Patents by Inventor Erik Dahlman

Erik Dahlman 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).

  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331577
    Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • Network Architecture, Methods, and Devices for a Wireless Communications Network
    Publication number: 20170331670
    Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Johan Nilsson, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter Von Wrycza, Thomas Walldeen, Anders Wallén, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
  • FULL DUPLEX IN A WIRELESS COMMUNICATION NETWORK
    Publication number: 20170324535
    Abstract: There is provided a method performed by a wireless node for determining when to use full duplex in the wireless node for communicating in a wireless communication network. The method comprises the step of estimating an influence on neighbouring wireless nodes of using full duplex in the wireless node. The method further comprises the step of deciding whether to use full duplex in the wireless node or not, based on the estimated influence.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 9, 2017
    Inventors: Anders Furuskär, Magnus Frodigh, Erik Dahlman, Mikael Höök, Stefan Parkvall, Claes Tidestav
  • SIDELINK COMMUNICATION TECHNIQUES IN RADIOCOMMUNICATION SYSTEMS
    Publication number: 20170290000
    Abstract: A method for sidelink communication between a first wireless node and a second wireless node is described, the sidelink communication using sub-frames of a first type and a second type. The first wireless node determines whether the first wireless node is an initiator or responder of the sidelink communication. If the first wireless node determines that the first wireless node is an initiator of the sidelink communication, then it transmits data directly toward the second wireless node using the first sub-frame type. Alternatively, if the first wireless node determines that the first wireless node is a responder of the sidelink communication, then it transmits data directly toward the second wireless node using the second sub-frame type, the first sub-frame type being different than the second sub-frame.
    Type: Application
    Filed: April 1, 2016
    Publication date: October 5, 2017
    Inventors: Stefan PARKVALL, Robert BALDEMAIR, Erik DAHLMAN, Bengt LINDOFF, Karl WERNER
  • Mapping user data onto a time-frequency resource grid in a coordinated multi-point wireless communication system
    Patent number: 9762366
    Abstract: Methods and apparatus are disclosed for receiving user data in a wireless communication system that employs coordinated multi-point transmission of the user data from a first cell serving a wireless terminal and a second cell site neighboring the first cell site. In an exemplary system, the first cell site maps control signals and user data to a time-frequency resources according to a first mapping pattern, while the second cell site maps control data and traffic data to the time-frequency resources according to a second mapping pattern.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 12, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: George Jöngren, Erik Dahlman
  • Flexible subframes
    Patent number: 9743405
    Abstract: The technology disclosed provides the ability for a subframe to be configured as a “flexible” subframe. As a result, at least three different types of subframes in a TDD system may be configured: a downlink (“DL”) subframe, an uplink (“UL”) subframe, and a “flexible” subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 22, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, David Astely, Erik Dahlman, Johan Nyström, Imadur Rahman, Yngve Selén, Johan Sköld
  • METHOD AND APPARATUS FOR CONFIGURING SOUNDING SIGNALS IN A WIRELESS COMMUNICATION NETWORK
    Publication number: 20170223679
    Abstract: The teachings presented herein propose a separation between the configuration of a sounding signal, and the initialization of the sounding signal. In other words, in at least one example embodiment proposed herein, a base station or other controlling entity sends, to a mobile station, an explicit or implicit indication that causes the mobile station to transmit a sounding signal according to sounding signal configuration parameters that at least a portion of which were previously and separately sent to the mobile station.
    Type: Application
    Filed: April 10, 2017
    Publication date: August 3, 2017
    Inventors: Erik Dahlman, Ylva Jading, Stefan Parkvall
  • Method and First Network Node for Managing a Request for Connectivity for a Service of a Wireless Device
    Publication number: 20170223666
    Abstract: A method and a first network node (120) of a wireless network (100) for managing a request for a connectivity for a service of a wireless device (110) are disclosed. The first network node (120) is configured to use a first set of resources of the wireless network (100). The first network node (120) receives (403) the request for the connectivity. The request is associated with a required level of a connectivity for the service. The required level of the connectivity relates to likelihood of maintaining the connectivity towards the wireless network (100). The first network node (120) further configures (404) the first set of resources to increase an estimated level of the connectivity for the service towards the wireless network (100). The estimated level of the connectivity is associated with the wireless network (100). A corresponding computer program and a computer program product are also disclosed.
    Type: Application
    Filed: March 4, 2014
    Publication date: August 3, 2017
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Dahlman, Magnus Frodigh, Mikael Höök, Harald Kallin, Gunnar Mildh, Joachim Sachs
  • Signaling of antenna associations
    Patent number: 9722680
    Abstract: For future wireless systems, it is desired to keep network implementation aspects, such as transmission point selection, precoder selection, etc, transparent to the terminal. This means that terminals are envisaged to be unaware of e.g. from which specific network node a transmission is made. This may be referred to as the transparency principle. The proposed solution comprises enabling a receiver to determine a type of antenna association that may be assumed in regard of two blocks of information, based on the result of the decoding of e.g. the first data block. The determination is done in a way such that the principle of transparency is not broken.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: August 1, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Karl Werner, Robert Baldemair, Håkan Björkegren, Erik Dahlman, Stefan Parkvall
  • Soft cell inter-layer interference handling
    Patent number: 9713166
    Abstract: In a heterogeneous cell deployment a mobile terminal may need to receive control data transmissions from a macro node at the same time as a pico node is transmitting user data for the mobile terminal, using the same frequency or set of frequencies. This can result in a problematic interference situation. According to several embodiments of the present invention, at least one of two general approaches is used to mitigate the interference situation described above. In a first approach, the pico node's transmission power is reduced in some time intervals, thereby reducing the interference to a level where reception from the macro node is possible. In a second approach, which may be combined with the first approach in some cases, the data transmitted from the macro node is provided by the pico node, either alone or in combination with the macro node.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 18, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, David Astely, Erik Dahlman, David Hammarwall, Bengt Lindoff, Stefano Sorrentino, Leif Wilhelmsson
  • Network nodes, devices and methods therein for enabling device to device communication
    Patent number: 9706589
    Abstract: Embodiments herein relate to a method in a first network node (16) for enabling device to device, D2D, communication between a first device (10) and a second device (13). The first device (10) is served by a first public land mobile network comprising the first network node (16) and the second device (13) is served by a second public land mobile network. The first network node (16) receives, from the second device (13), via the second public land mobile network, or from the first device (10), a request for permission for the second device (13) of roaming to the first public land mobile network enabling the D2D communication. The request requests access to a resource controlled by the first network node (16) of the first public land mobile network. The first network node (16) decides whether to grant the request based on a position related information of the second device (13) and/or the first device (10).
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: July 11, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Gabor Fodor, Erik Dahlman, Göran N. Klang, Stefan Parkvall, Leif Wilhelmsson
  • Control of Timing for Mixed-Mode Multicarrier Modulation
    Publication number: 20170163463
    Abstract: In one aspect, a wireless transmitter forms (1110) a first signal having a first integer number of symbol intervals in each of one or more time intervals of a predetermined length and forms (1120) a second signal having a second integer number of symbol intervals in each of the one or more time intervals of the predetermined length, the second integer number differing from the first integer number. The wireless transmitter simultaneously transmits (1130) the first and second signals in a frequency band, such that the first and second signals are frequency-domain multiplexed in the frequency band and such that a symbol interval starting time in the first signal is aligned with a corresponding symbol interval starting time in the second signal at least once per time interval.
    Type: Application
    Filed: November 17, 2015
    Publication date: June 8, 2017
    Inventors: Karl Werner, Robert Baldemair, Håkan Björkegren, Erik Dahlman, Stefan Parkvall
  • Method and apparatus for configuring sounding signals in a wireless communication network
    Patent number: 9642130
    Abstract: The teachings presented herein propose a separation between the configuration of a sounding signal, and the initialization of the sounding signal. In other words, in at least one example embodiment proposed herein, a base station or other controlling entity separates the selection of sounding signal parameters (sounding signal configuration) and the signaling of that configuration information to a mobile terminal from the Ordering” or other initiation of sounding signal transmission. Thus, a mobile station may be sent sounding signal configuration information and subsequently be commanded (implicitly or explicitly) to begin sounding signal transmissions according to the previously provided configuration information.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 2, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Erik Dahlman, Ylva Jading, Stefan Parkvall
  • UPLINK POWER CONTROL METHOD AND USER EQUIPMENT SUPPORTING BOTH COMMON AND SEPARATE TPC COMMANDS
    Publication number: 20170111868
    Abstract: A transmit power control (TPC) method and a user equipment (UE) of a telecommunications network utilizing the TPC method. The UE receives TPC commands intended for traffic and control channels. The TPC commands are separately identified by logical or physical resources associated with the channels. When the traffic and control channel TPCs occupy the same resources, the UE applies common power control commands to the traffic and control channels. When the traffic and control channel TPCs occupy different resources, the UE applies separate power control commands to the traffic and control channels.
    Type: Application
    Filed: December 27, 2016
    Publication date: April 20, 2017
    Inventors: Erik DAHLMAN, Anders FURUSKÄR
  • Transmission of System Information on a Downlink Shared Channel
    Publication number: 20170105167
    Abstract: In one embodiment, a method of transmitting system information on a downlink shared channel structured as successive subframes includes transmitting system information in regularly occurring time windows, each time window spanning some number of successive subframes. The method further includes indicating to receiving user equipment which subframes within a given time window carry system information. The method and variations of it are applied, for example, to the transmission of dynamic system information on the downlink shared channel or other downlink channel in a 3GPP E-UTRA wireless communication network.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Inventors: Erik Dahlman, Vera Vukajlovic Kenehan
  • Technique for operating a network node in a heterogeneously deployed network
    Patent number: 9603101
    Abstract: A technique for operating a network node in a heterogeneously deployed network comprising network nodes of different nominal transmit powers and at least partially overlapping coverage areas is described. A method implementation of this technique comprises a step of operating the network node in a base mode in which the network node is configured to transmit terminal-specific demodulation reference signals for a first set of terminal devices. The method comprises the further step of selectively activating or deactivating operation of the network node in a Single Frequency Network (SFN) mode in which the network node is configured to transmit, for a second set of terminal devices, the same cell-specific reference nodes as another network node of the heterogeneously deployed network that has a larger nominal transmit power.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: March 21, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Stefan Parkvall, David Astely, Erik Dahlman, Pal Frenger
  • A Method and a First Node for Managing Modes of Operation of a Service
    Publication number: 20170070413
    Abstract: A first node (110) and a method therein for managing modes of operation of a service, referred to as “service modes” are disclosed. The service is executed in the first node (110). The service is capable of communicating with a second node (120) over a wireless network (100). The first node (110) receives an estimated level of a connectivity for the service from the wireless network (100). The estimated level of the connectivity relates to likelihood of maintaining the connectivity to the second node (120). The first node (110) selects one of the service modes based on the estimated level of the connectivity. Moreover, corresponding computer programs and computer program products are disclosed.
    Type: Application
    Filed: March 4, 2014
    Publication date: March 9, 2017
    Inventors: Erik Dahlman, Magnus Frodigh, Mikael Höök, Harald Kallin, Gunnar Mildh, Joachim Sachs
  • Mapping User Data onto a Time-Frequency Resource Grid in a Coordinated Multi-Point Wireless Communication System
    Publication number: 20170070322
    Abstract: Methods and apparatus are disclosed for receiving user data in a wireless communication system that employs coordinated multi-point transmission of the user data from a first cell serving a wireless terminal and a second cell site neighboring the first cell site. In an exemplary system, the first cell site maps control signals and user data to a time-frequency resources according to a first mapping pattern, while the second cell site maps control data and traffic data to the time-frequency resources according to a second mapping pattern.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 9, 2017
    Inventors: George Jöngren, Erik Dahlman
  • Methods, Wireless Device, Radio Base Station and Second Network Node for Managing EPS Bearer
    Publication number: 20170070977
    Abstract: A method and a wireless device (110) for managing an EPS bearer, a method and a radio base station (120) for setting parameters of an S1 bearer or an Iu bearer as well as a method and a second network node (150) for managing an EPS bearer are disclosed. The wireless device (110) sends, to the second network node (150), a request for setting up the EPS bearer for a service. The request is associated with a required level of a connectivity for the service. The required level relates to likelihood of maintaining the connectivity towards a first network node (140). The second network node (150) further receives the required level of the connectivity for the service. The second network node (150) sends, to a radio base station (120), a request for setting parameters of the S1 bearer or the Iu bearer. Corresponding computer programs and computer program products are also disclosed.
    Type: Application
    Filed: March 4, 2014
    Publication date: March 9, 2017
    Inventors: Erik Dahlman, Magnus Frodigh, Mikael HööK, Harald Kallin, Gunnar Mildh, Joachim Sachs
  • Multi-carrier CQI feedback method and apparatus
    Patent number: 9585042
    Abstract: A radio base station transmits data symbols to a mobile terminal on multiple frequency carriers, e.g., in accordance with the MC-WCDMA or cdma2000 3× air interface protocols. The radio base station instructs the mobile terminal to report channel quality measurements obtained by the terminal for the multiple carriers over the same uplink channel during successive reporting intervals. According to one embodiment, the mobile terminal reports channel quality by receiving data symbols transmitted on a plurality of frequency carriers in a multi-carrier CDMA environment and measuring channel quality for the different frequency carriers. The mobile terminal reports individual ones of the channel quality measurements over the same uplink channel during successive reporting intervals.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: February 28, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Parkvall, Erik Dahlman, Bo Göransson, Joakim Bergström