Patents by Inventor Esa T. Tiirola

Esa T. Tiirola 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: 20140376460
    Abstract: A method provides information to a UE specifying a UL-DL configuration to be applied to the UE. The information is indicative of: (a) a signaling time at which a UL-DL configuration signaling for a new UL-DL configuration is to take place, and (b) an application time at which the new UL-DL configuration is to be applied. This method complements UL-DL configuration signaling by providing more reliable reception of UL-DL configuration information. This indication is performed with smaller signaling overhead compared to conventional schemes and with reasonable complexity on both the UE side and an eNB side.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: Kari J. Hooli, Esa T. Tiirola, Timo E. Lunttila
  • Patent number: 8897249
    Abstract: In accordance with an example embodiment of the present invention, there is at least a method, apparatus, and computer program product to perform an over-provisioning of a radio resource including a periodic channel quality indicator resource in a predetermined way, and an allocating of the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 25, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Esa T. Tiirola, Kari Hooli, Kari P. Pajukoski, Sabine Roessel
  • Patent number: 8873462
    Abstract: Methods, apparatus and computer program products are disclosed. A method includes receiving signals from a number of antennas, the signals from a number of user equipments and comprising a number of sub-bands allocated to the number of user equipments; selecting, based on one or more criteria and for each of number of selected sub-bands allocated to a selected one of the number of user equipments, one or more antennas of the number of antennas to be used for signal detection and interference suppression on the received signals for the selected user equipment; and performing, for the selected user equipment, the signal detection and interference suppression on the received signals for each of the number of selected sub-bands based on the corresponding selected one or more antennas for each of the number of selected sub-bands to create an output signal.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: October 28, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Kari P. Pajukoski, Kari J. Hooli, Esa T. Tiirola, Matti T. Kiiski, Pasi Eino Tapio Kinnunen
  • Publication number: 20140301300
    Abstract: Improved mechanisms for using enhanced physical downlink control channel (EPDCCH) and enhanced physical hybrid indicator automated repeat request indicator channel (EPHICH) resources are described. A physical resource block (PRB) of an EPDCCH is specified and one or more EPHICH code blocks, which may also be referred to as an EPHICH resource element group (EPREG), are defined. One or more of the EPREGs is mapped into the EPDDCH PRB.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: Nokia Corporation
    Inventors: Timo E. Lunttila, Esa T. Tiirola, Klaus Hugl
  • Patent number: 8842762
    Abstract: For an integer number R (greater than one) of demodulation reference signal DM RS resources that are reserved for SU-MIMO transmissions by a UE, there is associated in a memory a) for a first transmission instance each of the R DM RS resources with a unique one of R spatial layers or R transmit antennas, and b) for a second transmission instance each of the R DM RS resources with a different unique one of the R spatial layers or transmit antennas. The first and second transmission instances (slots or sub-frames) are consecutive. A UE transmission to a network in the first slot/sub-frame comprises each DM RS resource on the respective spatial layer or transmit antenna with which they are associated for the first slot/sub-frame, and a UE transmission to the network in the first slot/sub-frame comprises each DM RS resource on the respective spatial layer or transmit antenna with which they are associated for the second slot/sub-frame.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 23, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Kari J. Hooli, Timo E. Lunttila, Kari P. Pajukoski, Esa T. Tiirola
  • Patent number: 8817718
    Abstract: A user equipment locally stores a shift pattern that is specific to a cell to which the user equipment is currently attached, and processes a group of modulation symbols or bits for uplink transmission by a) cyclically shifting the modulation symbols or bits within the group according to the stored cell-specific shift pattern, and b) applying a spreading code to the group of symbols or bits. Different embodiments include spatial shifting and frequency bin shifting.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: August 26, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Kari P. Pajukoski, Kari J. Hooli, Esa T. Tiirola
  • Patent number: 8811222
    Abstract: A method, including making one or more measurements at a mobile device of path loss for a transmission between said mobile device and a base station in a first frequency band of a plurality of frequency bands in which the mobile device is configured to make transmissions to said base station; receiving at said mobile device path loss estimate information specifying an estimate of the relationship between said path loss for a transmission between said mobile device and said base station in said first frequency band, and path loss for a transmission between said mobile device and said base station in a second frequency band of said plurality of frequency bands; and determining a transmission power for at least one transmission to said base station in said second frequency band on the basis of at least said one or more measurements and said path loss estimate information.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: August 19, 2014
    Assignee: Nokia Siemens Networks Oy
    Inventors: Kari P. Pajukoski, Klaus I. Pedersen, Esa T. Tiirola
  • Publication number: 20140219210
    Abstract: A method, apparatus, and computer program for controlling allocation of control message fields in uplink transmission in a cellular telecommunication system are presented. Uplink control message fields are allocated to the resources of a physical uplink shared traffic channel according to an uplink transmission scheme selected for a user terminal. The control message fields are allocated so that transmission performance of the control messages is optimized for the selected uplink transmission scheme.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Timo E. Lunttila, Kari P. Pajukoski, Esa T. Tiirola
  • Patent number: 8681727
    Abstract: A method includes determining a base sequence, cyclic shift, and UE-specific portion of a frequency comb, applying the cyclic shift to the base sequence to create a shifted sequence, and selecting a portion of the shifted sequence as a user equipment-specific SRS. The selected portion of the shifted sequence corresponds to the portion of the frequency comb. A second method includes assigning a cyclic shift and a UE-specific portion of a frequency comb to a UE, where the cyclic shift is for use by the UE to apply the cyclic shift to the determined base sequence to create a shifted sequence. The portion of the frequency comb is for the UE to select a portion of the shifted sequence for SRS. The method includes transmitting indications of the base sequence, the cyclic shift, and the portion of the frequency comb. Auxiliary DMRS may be provided using SRS resources.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: March 25, 2014
    Assignee: Nokia Corporation
    Inventors: Pasi Eino Tapio Kinnunen, Kari J. Hooli, Kari P. Pajukoski, Esa T. Tiirola, Mauri J. Nissila
  • Publication number: 20140036842
    Abstract: In accordance with the exemplary embodiments of the invention there is a method, executable computer program, and apparatus for determining that an acknowledgment is to be sent, and for the case where there is also a scheduling request to be sent, combining the acknowledgment with the scheduling request on a scheduling resource, else placing the acknowledgment in another resource. In accordance with another exemplary embodiment of the invention there is a method, executable computer program, and apparatus for receiving information on a scheduling resource, and determining that the information received on the scheduling resource includes an acknowledgment.
    Type: Application
    Filed: October 11, 2013
    Publication date: February 6, 2014
    Applicant: Nokia Solutions and Networks Oy
    Inventors: Kari P. Pajukoski, Esa T. Tiirola
  • Publication number: 20130196700
    Abstract: A first user equipment UE operating in a first/strong transmission mode determines that a second UE is operating in a second/weak mode and is allocated a same radio resource as the first UE. The first UE determines a transport format for transmissions to the second UE and uses that to decode and cancel a transmission received on the radio resource which is directed to the second UE, mitigating interference with a further transmission directed to the first UE. Various examples are given of specific resource allocation signaling used to determine that the second UE is operating in the second mode and is allocated the same radio resource, such as implicitly by a specific downlink control indication format or an explicit indication in a resource allocation directed to the first UE. The first UE can determine the transport format of the second UE from network signaling.
    Type: Application
    Filed: January 30, 2012
    Publication date: August 1, 2013
    Inventors: Esa T. Tiirola, Kari P. Pajukoski, Olav E. Tirkkonen
  • Publication number: 20130189930
    Abstract: A method includes determining a base sequence, cyclic shift, and UE-specific portion of a frequency comb, applying the cyclic shift to the base sequence to create a shifted sequence, and selecting a portion of the shifted sequence as a user equipment-specific SRS. The selected portion of the shifted sequence corresponds to the portion of the frequency comb. A second method includes assigning a cyclic shift and a UE-specific portion of a frequency comb to a UE, where the cyclic shift is for use by the UE to apply the cyclic shift to the determined base sequence to create a shifted sequence. The portion of the frequency comb is for the UE to select a portion of the shifted sequence for SRS. The method includes transmitting indications of the base sequence, the cyclic shift, and the portion of the frequency comb. Auxiliary DMRS may be provided using SRS resources.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Pasi Eino Tapio Kinnunen, Kari J. Hooli, Kari P. Pajukoski, Esa T. Tiirola, Mauri J. Nissila
  • Patent number: 8483149
    Abstract: The exemplary embodiments of the invention provide at least a method and apparatus for defining a set of parameters to establish a possibility for a single user equipment to transmit uplink data on a physical uplink shared channel via two or more clusters including adjacent resource blocks, where at least one of the clusters includes at least one blanked physical uplink control channel resource block and where at least one of the clusters includes at least one physical shared channel resource block, and transmitting the parameters to at least the single user equipment. Further, the exemplary embodiments of the invention provide at least a method and apparatus for receiving a set of parameters defining a physical uplink control channel and allocating physical/virtual resource blocks based at least on received physical uplink control channel configuration parameters, a received resource allocation and predefined physical resource block mapping rules.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: July 9, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventors: Esa T. Tiirola, Kari P. Pajukoski, Timo Lunttila
  • Publication number: 20130128821
    Abstract: A method for providing a DM RS arrangement for CoMP reception is described. The method includes receiving (e.g., at a receiver), at a UE, a message for a first CC from a network node. The message includes an indication of a DM RS PUSCH mode for the first CC and a CSI field. The method also includes determining (e.g., at a processor) whether the DM RS PUSCH mode for the first CC includes a mirror cell mode. In response to determining that the DM RS PUSCH mode includes a mirror cell mode, the method includes determining (e.g., at a processor) a DM RS sequence based at least in part on the CSI field. Apparatus and computer readable media are also described.
    Type: Application
    Filed: November 18, 2011
    Publication date: May 23, 2013
    Inventors: Kari J. Hooli, Kari P. Pajukoski, Esa T. Tiirola, Mauri J. Nissila
  • Publication number: 20130121316
    Abstract: A method of configuring a component carrier includes determining how timings of receiving and/or sending data for at least two aggregated component carriers in at least one time period are related; and setting the timing of receiving and/or sending data for the at least two aggregated component carriers based on the determining.
    Type: Application
    Filed: April 8, 2010
    Publication date: May 16, 2013
    Inventors: Peter Skov, Esa T. Tiirola, Peng Chen, ChunYan Gao
  • Patent number: 8406182
    Abstract: In accordance with an example embodiment of the present invention, there is at least a method, apparatus, and computer program product to perform an over-provisioning of a radio resource including a periodic channel quality indicator resource in a predetermined way, and an allocating of the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: March 26, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventors: Esa T. Tiirola, Kari Hooli, Kari P. Pajukoski, Sabine Roessel
  • Publication number: 20120294162
    Abstract: Methods, apparatus and computer program products are disclosed. A method includes receiving signals from a number of antennas, the signals from a number of user equipments and comprising a number of sub-bands allocated to the number of user equipments; selecting, based on one or more criteria and for each of number of selected sub-bands allocated to a selected one of the number of user equipments, one or more antennas of the number of antennas to be used for signal detection and interference suppression on the received signals for the selected user equipment; and performing, for the selected user equipment, the signal detection and interference suppression on the received signals for each of the number of selected sub-bands based on the corresponding selected one or more antennas for each of the number of selected sub-bands to create an output signal.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 22, 2012
    Inventors: Kari P. Pajukoski, Kari J. Hooli, Esa T. Tiirola, Matti T. Kiiski, Pasi Eino Tapio Kinnunen
  • Publication number: 20120039281
    Abstract: A user equipment locally stores a shift pattern that is specific to a cell to which the user equipment is currently attached, and processes a group of modulation symbols or bits for uplink transmission by a) cyclically shifting the modulation symbols or bits within the group according to the stored cell-specific shift pattern, and b) applying a spreading code to the group of symbols or bits. Different embodiments include spatial shifting and frequency bin shifting.
    Type: Application
    Filed: August 15, 2011
    Publication date: February 16, 2012
    Inventors: Kari P. Pajukoski, Kari J. Hooli, Esa T. Tiirola
  • Publication number: 20110317778
    Abstract: In accordance with an exemplary embodiment of the invention, there is at least a method, computer program instructions, and an apparatus to perform operations including replicating and time-aligning, at a wireless communication device, more than two hybrid automatic repeat request acknowledgment or rank indicator bits across layers and codewords of an uplink transmission signal, and providing an ability to define per codeword either an effective modulation order or a coding rate when a different modulation order is configured to the codewords so that time-alignment across all the layers and the codewords of the uplink transmission signal is maintained.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 29, 2011
    Inventors: Kari J. Hooli, Esa T. Tiirola, Timo E. Lunttila, Kari P. Pajukoski
  • Publication number: 20110150120
    Abstract: For an integer number R (greater than one) of demodulation reference signal DM RS resources that are reserved for SU-MIMO transmissions by a UE, there is associated in a memory a) for a first transmission instance each of the R DM RS resources with a unique one of R spatial layers or R transmit antennas, and b) for a second transmission instance each of the R DM RS resources with a different unique one of the R spatial layers or transmit antennas. The first and second transmission instances (slots or sub-frames) are consecutive. A UE transmission to a network in the first slot/sub-frame comprises each DM RS resource on the respective spatial layer or transmit antenna with which they are associated for the first slot/sub-frame, and a UE transmission to the network in the first slot/sub-frame comprises each DM RS resource on the respective spatial layer or transmit antenna with which they are associated for the second slot/sub-frame.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 23, 2011
    Inventors: Kari J. Hooli, Timo E. Lunttila, Kari P. Pajukoski, Esa T. Tiirola