Patents by Inventor Timo Roman

Timo Roman 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: 20190265703
    Abstract: A system and method for an on-demand shuttle, bus, or taxi service able to operate on private and public roads provides situational awareness and confidence displays. The shuttle may include ISO 26262 Level 4 or Level 5 functionality and can vary the route dynamically on-demand, and/or follow a predefined route or virtual rail. The shuttle is able to stop at any predetermined station along the route. The system allows passengers to request rides and interact with the system via a variety of interfaces, including without limitation a mobile device, desktop computer, or kiosks. Each shuttle preferably includes an in-vehicle controller, which preferably is an AI Supercomputer designed and optimized for autonomous vehicle functionality, with computer vision, deep learning, and real time ray tracing accelerators. An AI Dispatcher performs AI simulations to optimize system performance according to operator-specified system parameters.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Gary HICOK, Michael COX, Miguel SAINZ, Martin HEMPEL, Ratin KUMAR, Timo ROMAN, Gordon GRIGOR, David NISTER, Justin EBERT, Chin SHIH, Tony TAM, Ruchi BHARGAVA
  • Publication number: 20190258878
    Abstract: In various examples, detected object data representative of locations of detected objects in a field of view may be determined. One or more clusters of the detected objects may be generated based at least in part on the locations and features of the cluster may be determined for use as inputs to a machine learning model(s). A confidence score, computed by the machine learning model(s) based at least in part on the inputs, may be received, where the confidence score may be representative of a probability that the cluster corresponds to an object depicted at least partially in the field of view. Further examples provide approaches for determining ground truth data for training object detectors, such as for determining coverage values for ground truth objects using associated shapes, and for determining soft coverage values for ground truth objects.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 22, 2019
    Inventors: Tommi Koivisto, Pekka Janis, Tero Kuosmanen, Timo Roman, Sriya Sarathy, William Zhang, Nizar Assaf, Colin Tracey
  • Patent number: 9831999
    Abstract: Methods for operating a small cell in a discontinued reception (DRX) mode include maintaining the small cell in a discontinuous transmission (DTX) mode during a first time period having a plurality of first time slots. The methods include transmitting common reference signals in a predetermined number of second time slots prior to the first time slots and in a predetermined number of third time slots following commencement of the first time slots. The methods include discontinuing transmission of the common reference signals and common channel signals if mobile devices are in a discontinuous reception mode during the first time period. The methods include discontinuing transmission of the common reference signals during a predetermined number of fourth time slots following commencement of the first time period if there is no dedicated common transmission to the mobile devices.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: November 28, 2017
    Assignee: Nvidia Corporation
    Inventors: Tommi Koivisto, Tero Kuosmanen, Timo Roman
  • Patent number: 9602230
    Abstract: Disclosed is a method of providing channel state information for a desired downlink channel of a wireless communication system. In a configuration phase, the method comprises receiving on a signaling channel configuration information comprising an identifier of an interference source and an association which associates the identifier with at least one resource element not used for transmission on the desired downlink channel. In an estimation phase, the method comprises estimating channel state information for an expected transmission on the desired downlink channel accounting for an incoming interference transmission from the identified interference source as observed from the at least one resource element. In a reporting phase, the method comprises reporting the channel state information.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: March 21, 2017
    Assignee: Nvidia Corporation
    Inventors: Timo Roman, Tommi Koivisto, Tero Kuosmanen, Pekka Janis
  • Patent number: 9344953
    Abstract: An apparatus and method for initialization and mapping of reference signals in a communication system. In one embodiment, the apparatus includes a processor and memory including computer program code. The memory and the computer program code are configured to, with the processor, cause the apparatus to generate a reference signal employable with a plurality of physical resource blocks corresponding to a bandwidth of a communication system, and allocate resource elements of an assigned physical resource block from the plurality of physical resource blocks to a user equipment. The memory and the computer program code are further configured to, with the processor, cause the apparatus to generate a dedicated reference signal for the user equipment by allocating elements of the reference signal in accordance with allocated resource elements of the assigned physical resource block.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 17, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Mieszko Chmiel, Peter Skov, Tommi Tapani Koivisto, Xiangguang Che, Timo Roman
  • Publication number: 20150327325
    Abstract: Methods for operating a small cell in a discontinued reception (DRX) mode include maintaining the small cell in a discontinuous transmission (DTX) mode during a first time period having a plurality of first time slots. The methods include transmitting common reference signals in a predetermined number of second time slots prior to the first time slots and in a predetermined number of third time slots following commencement of the first time slots. The methods include discontinuing transmission of the common reference signals and common channel signals if mobile devices are in a discontinuous reception mode during the first time period. The methods include discontinuing transmission of the common reference signals during a predetermined number of fourth time slots following commencement of the first time period if there is no dedicated common transmission to the mobile devices.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 12, 2015
    Inventors: Tommi Koivisto, Tero Kuosmanen, Timo Roman
  • Publication number: 20150270917
    Abstract: Disclosed is a method of providing channel state information for a desired downlink channel of a wireless communication system. In a configuration phase, the method comprises receiving on a signaling channel configuration information comprising an identifier of an interference source and an association which associates the identifier with at least one resource element not used for transmission on the desired downlink channel. In an estimation phase, the method comprises estimating channel state information for an expected transmission on the desired downlink channel accounting for an incoming interference transmission from the identified interference source as observed from the at least one resource element. In a reporting phase, the method comprises reporting the channel state information.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 24, 2015
    Inventors: Timo Roman, Tommi Koivisto, Tero Kuosmanen, Pekka Janis
  • Patent number: 9088322
    Abstract: A method and apparatus are provided for an apparatus. The apparatus includes at least one memory including computer program code, and at least one processor. The at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to receive an indication of a set of codeword groups to be included in a codebook, and to select a precoding matrix index based on the indicated set of codeword groups in the codebook. The apparatus is also cause to transmit the precoding matrix index to a network node.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 21, 2015
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Tommi Koivisto, Mihai Enescu, Timo Roman, Karol Schober
  • Patent number: 9078250
    Abstract: Methods for devices, devices and computer program products for devices relate to a communication module, arranged for packet based communication, and including a receiving module. The receiving module is arranged to receive a control message, wherein the control message includes a plurality of acknowledgement information items, wherein each of the plurality of acknowledgement information items are located in a preset portion of the control message, respectively. The device further includes a determination module, arranged to determine whether the received control message is intended for the device, a selection module, arranged to select, responsive to an affirmative determination result, at least one of the plurality of acknowledgement information items based on the preset portions, and an obtaining module, arranged to obtain control data contained in the selected at least one of the plurality of acknowledgement information items.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: July 7, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Tommi Koivisto, Timo Roman, Mihai Enescu
  • Patent number: 8917690
    Abstract: A method is provided that includes allocating a first subset of resource elements (REs) of a physical resource block (PRB) to a mobile terminal and associating one or more first demodulation reference symbols (DM-RS) ports therewith. The first subset of REs and the one or more first DM-RS ports have common interference characteristics, thereby providing for enhanced interference suppression. The method also includes causing transmission of the PRB for reception by the mobile terminal. Corresponding apparatus and computer program products are also provided.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: December 23, 2014
    Assignee: Broadcom Corporation
    Inventors: Tommi Koivisto, Timo Roman, Mihai Enescu, Tero Kuosmanen, Shuang Tan, Erlin Zeng
  • Patent number: 8897254
    Abstract: An apparatus and method for selecting a beam group and a subset of beams in a communication system are disclosed. The method includes: measuring channel state information (CSI) on a downlink from a base station (920); identifying a selected beam group out of a set of beam groups according to a wideband property of the CSI (930); identifying a selected subset of beams in the selected beam group according to at least one subband (940). Wherein the characteristic of the set of beam groups depends on a transmission rank and the number of beams in the selected subset of beams is equal to the transmission rank. The method further includes: generating encoded feedback information identifying the selected beam group and the selected subset of beams for each subband in a double codebook format (950), transmitting the encoded feedback information to the base station.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: November 25, 2014
    Assignee: Nokia Corporation
    Inventors: Tommi Koivisto, Timo Roman, Mihai Enescu, Shuang Tan, Helka-Liina Määttänen
  • Patent number: 8825069
    Abstract: Examples are described relating to methods, apparatus and computer programs for configuring a user equipment in a cellular wireless network. Certain exemplary methods involve receiving (440), at the user equipment (430), control information regarding one or more of a plurality of channel-state information (CSI) reference signals. The plurality of CSI reference signals are receivable by the user equipment (430) from one or more of a plurality of antenna ports that form part of the cellular wireless network, the plurality of CSI reference signal being associated with corresponding antenna ports. The control information is for use in configuration of the user equipment (430) and is received over a radio communications downlink from a node (410) in the cellular wireless network. If estimation of one or more radio communication channels at the user equipment (430) is configured (450) based on the received control information, improvements in demodulation and CSI feedback are achieved.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Tommi Koivisto, Timo Roman
  • Patent number: 8743992
    Abstract: A first precoding matrix W1 is selected from a first codebook comprising sets of rank specific precoding matrices. The first codebook is characterized by there being fewer precoding matrices associated with higher ranks than associated with lower ranks, and characterized by precoding matrices associated with ranks above a certain rank all being diagonal matrices. The selected first precoding matrix W1 is used to select a rank-specific second precoding matrix W2 from a second codebook, such that the selected first and second precoding matrices form a joint precoder specific to a desired rank. The second codebook is characterized by differently sized precoding matrices associated with each of N total ranks, in which N is an integer greater than one. Information on the joint precoder is reported to a network node over an uplink transmission channel.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 3, 2014
    Assignee: Nokia Corporation
    Inventors: Mihai Enescu, Timo Roman, Tommi Koivisto, Timo Lunttila, Shuang Tan, Helka-Liina Määttänen, Kari Pietikäinen
  • Patent number: 8724572
    Abstract: In an embodiment, state of a wireless channel on which information is received is measured; the measured state is used to select from a codebook a plurality of N codewords which optimize a predefined measure, and first and second codewords of the plurality are reported which best optimizes and next-best optimizes the predefined measure. If by example the above is done by a user equipment UE, in another embodiment the network receives first and second indications, searches a codebook using the first and second indications to find the first and second codewords; and utilizes them to improve the channel state information, such as by interpolating between them to find an estimate of the channel. In examples the channel is a MIMO channel that is estimated at two or more antenna ports, there are interpolation weights sent with the codeword indications, and the interpolating uses a geodesic algorithm.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: May 13, 2014
    Assignee: Nokia Corporation
    Inventors: Karol Schober, Tommi Koivisto, Timo Roman, Mihai Enescu, Timo Lunttila
  • Patent number: 8625450
    Abstract: In accordance with the exemplary embodiments of the invention there is deriving multiple input-multiple output feedback information using a set of precoding matrices associated with at least one precoding codebook, signaling, in a first plurality of resource elements, channel state information associated with a first precoding matrix indicator of the set of precoding matrices jointly with a transmission rank, and signaling separately, in a second plurality of resource elements, channel state information associated with a second precoding matrix indicator of the set of precoding matrices.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: January 7, 2014
    Assignee: Nokia Corporation
    Inventors: Timo Lunttila, Tommi Koivisto, Timo Roman, Mihai Enescu
  • Patent number: 8625632
    Abstract: Messages containing interference vectors are transmitted efficiently to user equipments over a downlink channel. A pre-coding indicator channel is used for transmission in an over-the-air packet-based communication system. A table of pre-coding matrix indices or pre-coding vector information is transmitted to user equipments configured in a spatially multiplexed multiple user MIMO configuration. The UEs receive the pre-coding vector information that allows them to determine the pre-coding vectors used to communicate in the downlink direction from a MIMO base station to other MIMO UEs in the cell or system. The UEs use this information to actively suppress inter-user interference.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: January 7, 2014
    Assignee: Nokia Corporation
    Inventors: Timo Roman, Cassio Barboza Ribeiro, Tommi Tapani Koivisto, Lars Erik Lindh
  • Patent number: 8599960
    Abstract: A method, apparatus and computer program product are provided for reporting low rank feedback information for each transmission point up to a maximum rank per transmission point. In this regard, a method includes determining a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A method also includes determining a joint transmission rank based on at least two of the plurality of transmission points. A method also includes selecting a joint transmission precoding matrix based on the determined precoding matrix for each of the at least two transmission points and the determined joint transmission rank. The method further includes causing channel state information “CSI” to be transmitted to an access point, wherein the CSI describes the selected joint transmission precoding matrix.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 3, 2013
    Assignee: Renesas Mobile Corporation
    Inventors: Tommi Koivisto, Mihai Enescu, Timo Roman, Karol Schober
  • Publication number: 20130244676
    Abstract: Examples are described relating to methods, apparatus and computer programs for configuring a user equipment in a cellular wireless network. Certain exemplary methods involve receiving (440), at the user equipment (430), control information regarding one or more of a plurality of channel-state information (CSI) reference signals. The plurality of CSI reference signals are receivable by the user equipment (430) from one or more of a plurality of antenna ports that form part of the cellular wireless network, the plurality of CSI reference signal being associated with corresponding antenna ports. The control information is for use in configuration of the user equipment (430) and is received over a radio communications downlink from a node (410) in the cellular wireless network. If estimation of one or more radio communication channels at the user equipment (430) is configured (450) based on the received control information, improvements in demodulation and CSI feedback are achieved.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 19, 2013
    Applicant: RENESAS MOBILE CORPORATION
    Inventors: Tommi Koivisto, Timo Roman
  • Patent number: 8494467
    Abstract: The invention teaches a solution, for example, for Long Term Evolution (LTE) networks. The solution comprises determining a measurement pattern for at least one automatic gain control tracking loop when resource restrictions have been configured for a user equipment, the resource restrictions comprising at least one measurement restriction pattern, wherein each automatic gain control tracking loop is associated with at least one measurement restriction pattern; and performing automatic gain control measurements according to the measurement patterns of the at least one automatic gain control tracking loop.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: July 23, 2013
    Assignee: Renesas Mobile Corporation
    Inventors: Tero Henttonen, Timo Roman, Chris Callender, Anders Ostergaard Nielsen, Kaj Jansen
  • Patent number: 8423037
    Abstract: In accordance with the exemplary embodiments of the invention there is at least a method, apparatus, and a computer program to perform operations including receiving information descriptive of a type of radio access which a user equipment is acting on, and in response to receiving the information descriptive of a particular type of radio access, transmitting from a multiple transmit antenna user equipment so that the transmission appears, at a receiver, to have been made by a single antenna user equipment, or by a user equipment that supports antenna switching/selection.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 16, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventors: Kari Pajukoski, Kari Hooli, Esa Tiirola, Tommi Koivisto, Timo Roman