Patents by Inventor Fredrik Ovesjö

Fredrik Ovesjö 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: 9198050
    Abstract: A NodeB for an HSPA enabled WCDMA network, arranged to transmit beam forming instructions to a User Equipment, a UE, which is arranged for beam forming. The beam forming instructions comprise information identifying a code book with one or more code words, and the NodeB is also arranged to transmit code words from said code book to the UE at a certain rate. The NodeB is further arranged to determine said rate based on dynamically varying information available in the WCDMA network, and to receive said information on the code book from an RNC upon configuration of the UE or to choose code book based on said dynamically varying information available in the WCDMA network.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: November 24, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Johan Hultell, Johan Bergman, Bo Göransson, Niklas Johansson, Erik Larsson, Fredrik Ovesjö
  • Patent number: 9148258
    Abstract: A method of transmitting data from a wireless network node over a MIMO channel to a wireless terminal may include transmitting first and second transport data blocks to the wireless terminal over the MIMO channel using a first time-frequency-resource-element (TFRE). Responsive to receiving a NACK message from the wireless terminal corresponding to the first and second transport data blocks transmitted using the first TFRE, the first and second transport data blocks may be retransmitted to the wireless terminal over the MIMO channel using a second TFRE.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 29, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Anders Jonsson, Namir Lidian, Fredrik Ovesjö
  • Publication number: 20150256295
    Abstract: A method of transmitting data from a wireless network node over a MIMO channel to a wireless terminal may include transmitting first and second transport data blocks to the wireless terminal over the MIMO channel. Responsive to receiving a NACK message from the wireless terminal corresponding to the first and second transport data blocks, the first and second transport data blocks may be retransmitted to the wireless terminal over the MIMO channel.
    Type: Application
    Filed: May 20, 2015
    Publication date: September 10, 2015
    Inventors: Sairamesh Nammi, Anders Jonsson, Fredrik Ovesjö, Namir Lidian
  • Publication number: 20150195073
    Abstract: A method performed by a central network node of instructing one of a first network node and a second network node to transmit to a first wireless device, wherein all operate in a combined cell deployment. The central network node receives a first Channel Quality Indicator, CQI, and a third CQI sent by the first wireless device. The first CQI has been computed by the first wireless device based on a first unique signal transmitted by the first network node. The third CQI has been computed by the first wireless device based on a second unique signal transmitted by the second network node. The central network node identifies the one of the first and the second network nodes having a better channel quality, based on the received first CQI and the third CQI. The central network node sends a first message to the identified network node, instructing it to transmit to the first wireless device.
    Type: Application
    Filed: April 3, 2014
    Publication date: July 9, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Bo Göransson, Patrik Karlsson, Qingyu Miao, Fredrik Ovesjö
  • Patent number: 9072019
    Abstract: The technology involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected data, which typically results in a loss of radio performance of the antenna. The detected data from the directional antennas is then processed to generate processed data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: June 30, 2015
    Assignee: Unwired Planet, LLC
    Inventors: Bo Hagerman, Fredrik Ovesjö, Björn Gunnar Johannisson, Kimmo Hiltunen
  • Publication number: 20150181640
    Abstract: A first one of a wireless communication device (22) and a base station (20) performs a method for applying a change to a configuration or state of a radio bearer. The radio bearer supports the transfer of data over a radio connection between the wireless communication device (22) and the base station (20) with defined data transfer characteristics. The method includes performing a handshake with a second one of the wireless communication device (22) and the base station (20) to agree on a time to synchronously apply the change at the wireless communication device (22) and the base station (20). The method also includes, in accordance with the agreement, synchronously applying the change at that time.
    Type: Application
    Filed: January 7, 2014
    Publication date: June 25, 2015
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Waikwok Kwong, Alessandro Caverni, Bo Hellander, Patrik Karlsson, Fredrik Ovesjö, Jose Luis Pradas
  • Patent number: 8891463
    Abstract: A radio base station (1) for use in a wireless communication system comprises—a scheduling unit (9) arranged to schedule at least one user terminal to which to transmit in each subframe and—a power allocation unit (11) arranged to allocate a first amount of power to be used for the at least one user terminal in each subframe, a transmitter (5) arranged to transmit a transport block in a subframe to a number of user terminals (3) in the wireless communication system in accordance with said scheduling and power allocation. The radio base station further comprises—a correction unit (5) arranged to determine, after scheduling has been performed for a chosen subframe, if there is excess power in the chosen subframe that has not been allocated to any user terminal and if so allocate at least a first part of the excess power to at least one user terminal scheduled in the subframe. The excess power is used when transmitting in the subframe.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 18, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Samuel Axelsson, Fredrik Ovesjö, Anders Jonsson, Markus Ringström
  • Patent number: 8891676
    Abstract: The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method of operating an antenna device in a Multiple-Input Multiple-Output system. Embodiments of the invention disclose a secondary precoder (24) in series with a Multiple-Input Multiple-Output precoder (22). The Multiple-Input Multiple-Output precoder (22) has a first plurality of inputs (26, 28) for one or more Multiple-Input Multiple-Output data streams, and a first plurality of outputs (30, 32) for the one or more Multiple-Input Multiple-Output data streams. The secondary precoder has a second plurality of inputs (34, 36) and a second plurality of outputs (38, 40). The first plurality of outputs (30, 32) are in communication with the second plurality of inputs (34, 36).
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: November 18, 2014
    Assignee: Optis Cellular Technology, LLC
    Inventors: Markus Ringström, Bo Göransson, Fredrik Ovesjö, Henrik Asplund
  • Publication number: 20140245095
    Abstract: A method of transmitting data from a wireless network node over a MIMO channel to a wireless terminal may include transmitting first and second transport data blocks to the wireless terminal over the MIMO channel using a first time-frequency-resource-element (TFRE). Responsive to receiving a NACK message from the wireless terminal corresponding to the first and second transport data blocks transmitted using the first TFRE, the first and second transport data blocks may be retransmitted to the wireless terminal over the MIMO channel using a second TFRE.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 28, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Anders Jonsson, Namir Lidian, Fredrik Ovesjö
  • Publication number: 20140211760
    Abstract: The technology involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected data, which typically results in a loss of radio performance of the antenna. The detected data from the directional antennas is then processed to generate processed data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: Unwired Planet, LLC
    Inventors: Bo Hagerman, Fredrik Ovesjö, Björn Gunner Johannisson, Kimmo Hiltunen
  • Publication number: 20140133471
    Abstract: Methods and devices supporting MIMO transmission/reception are discussed. For example, first and second data blocks may be transmitted/received respectively using first and second transmission/reception layers during a first TTI for rank two transmission/reception. A first HARQ process may be mapped to the first data block of the first layer for the first TTI. A second HARQ process may be mapped to the second data block of the second layer for the first TTI. Third, fourth, and fifth data blocks may be transmitted/received respectively using the first and second layers and using a third transmission/reception layer during a second TTI for rank three transmission/reception. The first HARQ process may be mapped to the third data block of the first layer for the second TTI. The second HARQ process may be mapped to the fourth and fifth data blocks of the second and third layers for the second TTI.
    Type: Application
    Filed: December 17, 2012
    Publication date: May 15, 2014
    Inventors: Sairamesh Nammi, Bo Göransson, Anders Jonsson, Namir Lidian, Fredrik Ovesjö
  • Patent number: 8706121
    Abstract: The technology involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected data, which typically results in a loss of radio performance of the antenna. The detected data from the directional antennas is then processed to generate processed data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: April 22, 2014
    Assignee: Unwired Planet, LLC
    Inventors: Bo Hagerman, Fredrik Ovesjö, Björn Gunnar Johannisson, Kimmo Hiltunen
  • Publication number: 20140064392
    Abstract: A method of operating a wireless network node may include transmitting a first MIMO downlink communication to a wireless terminal according to a first MIMO rank, and receiving at least one HARQ ACK/NACK, message from the wireless terminal corresponding to the first MIMO downlink communication. A report may be received from the wireless terminal identifying a reported MIMO rank, and a second MIMO rank may be selected for a second MIMO downlink communication responsive to the at least one HARQ ACK/NACK message. The second MIMO downlink communication may be transmitted to the wireless terminal according to the second MIMO rank.
    Type: Application
    Filed: February 15, 2013
    Publication date: March 6, 2014
    Inventors: Anders Jonsson, Sairamesh Nammi, Bo Göransson, Namir Lidian, Fredrik Ovesjö
  • Patent number: 8665994
    Abstract: The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method for precoding data in a Multiple-Input Multiple-Output (MIMO) system. Embodiments of the invention disclose a secondary precoder 24 in series with a multiple-input multiple-output precoder 22. The secondary precoder 24 has a plurality of inputs 34, 36 and a plurality of outputs 38, 40. The second plurality of inputs being in communication with each plurality of outputs 38, 40 such that one or more signals input to a respective one or more of the second plurality of inputs 34, 36 provides a substantially equal power of signals at the second plurality of outputs 38, 40.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 4, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Henrik Asplund, Bo Göransson, Fredrik Ovesjö, Markus Ringström
  • Publication number: 20140056238
    Abstract: Disclosed is a base station (130) configured to control transmission of data streams from the base station to a user equipment, UE, in a wireless communication system. The base station (130) provides transmission of at least three data streams. The base station further provides only two different hybrid automatic retransmission request, HARQ, downlink processes (703ab, 704ab). The base station comprises a mapping unit (702) for mapping Medium Access Control enhanced high speed, MAC-ehs, service data units, SDUs belonging to two different data streams of the at least three data streams to the same of the two different HARQ downlink processes. The MAC-ehs SDUs belonging to two different data streams are of equal size. Disclosed is also a corresponding method performed by a base station (130).
    Type: Application
    Filed: February 13, 2013
    Publication date: February 27, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ)
    Inventors: Sairamesh Nammi, Anders Jonsson, Namir Lidian, Fredrik Ovesjö
  • Patent number: 8547919
    Abstract: The present invention relates to a method for allocating communication bandwidth between a first terminal of a plurality of terminals and a network device. Wireless communication between the first plurality of terminals and the network device is carried out using a plurality of carrier channels. The communication defines a first bandwidth. The method comprises the steps of receiving the request for change of bandwidth from the first terminal, evaluating current load on carrier channels in use by the first terminal, evaluating priority between all terminals using the carrier channels currently in use by the first terminal, evaluating capacity of all carrier channels available to the first terminal, and allocating a second bandwidth between the network device and the first terminal by allocating a new number of carrier channels. The present invention further relates to a network device and a device for communication.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: October 1, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Patrik Karlsson, Niilo Musikka, Babak Alamshahi, Rutger Andersson, Samuel Axelsson, Lars O Martensson, Fredrik Ovesjö
  • Publication number: 20130215872
    Abstract: A UE, for an HSPA WCDMA system, equipped with a first and a second transmit antenna, and arranged to use one or more sets of pre-coding weights for transmission. The UE is arranged to receive instructions from a NodeB on the set or sets of pre-coding weights to be used, and to transmit a first and a second pilot signal, and to use a first set of pre-coding weights for the first pilot signal and a second set of pre-coding weights for the second pilot signal, where the first set of pre-coding weights is the same as the UE uses for transmitting a first data stream, and to use different spreading codes for the first data stream and for the first pilot signal.
    Type: Application
    Filed: August 18, 2011
    Publication date: August 22, 2013
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Niklas Johansson, Johan Bergman, Bo Göransson, Johan Hultell, Erik Larsson, Fredrik Ovesjö
  • Publication number: 20130208704
    Abstract: A NodeB (105) for an HSPA enabled WCDMA network (100), arranged (11, 12, 13) to transmit beam forming instructions to a User Equipment, a UE (1 10), which is arranged for beam forming. The beam forming instructions comprise information identifying a code book with one or more code words, and the NodeB is also arranged to transmit code words from said code book to the UE at a certain rate. The NodeB is further arranged to determine said rate based on dynamically varying information available in the WCDMA network, and to receive said information on the code book from an RNC upon configuration of the U E or to choose code book based on said dynamically varying information available in the WCDMA network.
    Type: Application
    Filed: August 19, 2011
    Publication date: August 15, 2013
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Johan Hultell, Johan Bergman, Bo Göransson, Niklas Johansson, Erik Larsson, Fredrik Ovesjö
  • Publication number: 20130182794
    Abstract: The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method of operating an antenna device in a Multiple-Input Multiple-Output system. Embodiments of the invention disclose a secondary precoder (24) in series with a Multiple-Input Multiple-Output precoder (22). The Multiple-Input Multiple-Output precoder (22) has a first plurality of inputs (26, 28) for one or more Multiple-Input Multiple-Output data streams, and a first plurality of outputs (30, 32) for the one or more Multiple-Input Multiple-Output data streams. The secondary precoder has a second plurality of inputs (34, 36) and a second plurality of outputs (38, 40). The first plurality of outputs (30, 32) are in communication with the second plurality of inputs (34, 36).
    Type: Application
    Filed: September 23, 2010
    Publication date: July 18, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Markus Ringström, Bo Göransson, Fredrik Ovesjö, Henrik Asplund
  • Publication number: 20130142174
    Abstract: A NodeB for a WCDMA system, arranged to transmit instructions to a UE for the UE's uplink transmissions. The NodeB is arranged to transmit the instructions on a dedicated downlink physical channel which the NodeB is arranged to use for transmissions to a plurality of UEs and which comprises a plurality of radio frames, where each radio frame comprises a number of slots and each slot comprises a number of WCDMA symbols. The instructions to the UE comprise Transmit Power Commands as well as other instructions to the UE for the UE's uplink transmissions. The NodeB is arranged to use a first WCDMA slot format for the TPC commands to the UE and a second WCDMA slot format for the other instructions to the UE.
    Type: Application
    Filed: August 19, 2011
    Publication date: June 6, 2013
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Erik Larsson, Johan Bergman, Bo Göransson, Johan Hultell, Niklas Johansson, Fredrik Ovesjö