Patents by Inventor Timo Eric Roman

Timo Eric 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).

  • Patent number: 9363044
    Abstract: An arrangement is described for adapting outer loop precoder phase combiner in a radio communication system having coordinated multipoint transmission. In the arrangement ACK/NACK-message received as a response to a transmitted data packet is used for adapting the phase. When a NACK-message is received the phase may be adapted or it may be further determined if the error was due to error in channel code or due to destructive inter-point signal combining. If the error was due to destructive combining the phase is adjusted.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: June 7, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Karol Schober, Timo Eric Roman, Helka-Liina Maattanen, Mihai Horatiu Enescu
  • Patent number: 9197304
    Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by masking, such as cyclic redundancy check masking, to provide information regarding the antenna configuration and/or the transmission diversity scheme. In this regard, a set of masks can be determined based upon hamming distances between the masks and bit diversities between the masks and where each of the masks within the set is associated with an antenna configuration and a transmission diversity scheme.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: November 24, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Timo Eric Roman, Bernhard Raaf, Mieszko Chmiel
  • Publication number: 20150173087
    Abstract: A method, apparatus and computer program product are provided to suppress interference, such as interference attributable to increased network density, interference attributable to interference between uplink and downlink transmissions in a TDD system and/or interference attributable to D2D communications. In the context of a method, it is determined whether communication between an access point and a mobile terminal or between a mobile terminal and another mobile terminal is to be subjected to real-valued modulation or complex-valued modulation such that the modulation and a dominant form of interference for the mobile terminal are either both real-valued or both complex-valued. The method also includes providing for communication with the mobile terminal in accordance with the one of real-valued modulation or complex-valued modulation that was determined.
    Type: Application
    Filed: May 30, 2013
    Publication date: June 18, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Karl Marko Juhani Lampinen, Tommi Koivisto, Mihai Horatiu Enescu, Timo Eric Roman, Maja Loncar, Lars Christensen, Soeren Skovgaard Christensen
  • Publication number: 20140369443
    Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by masking, such as cyclic redundancy check masking, to provide information regarding the antenna configuration and/or the transmission diversity scheme. In this regard, a set of masks can be determined based upon hamming distances between the masks and bit diversities between the masks and where each of the masks within the set is associated with an antenna configuration and a transmission diversity scheme.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventors: Timo Eric Roman, Bernhard Raaf, Mieszko Chmiel
  • Publication number: 20140362788
    Abstract: Measures, including methods, apparatus and computer software for use in a cellular telecommunications network. A network entity causes transmittal, to a user equipment comprising a receiver currently configured in a relatively low performance reception modulation state, of signaling information associated with configuration of the receiver in a relatively high performance reception modulation state and, in response to transmittal of the signaling information, the network entity receives from the user equipment an indication that downlink reception by the receiver configured in the relatively high performance reception modulation state is currently viable.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Jouni Kristian KAUKOVUORI, Antti Oskari IMMONEN, Christopher Peter CALLENDER, Timo Eric ROMAN, Markus NENTWIG
  • Publication number: 20140301303
    Abstract: Measures including a method, comprising deriving at least one of one or more statistics of an interfering channel and a rate matching parameter of the interfering channel based on an interfering colocation information received from a serving transmission point device, wherein the interfering channel comprises a channel between an apparatus performing the method and an interfering transmission point device different from the serving transmission point device.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: Broadcom Corporation
    Inventors: Timo Eric ROMAN, Tommi Tapani KOIVISTO, Mihai Horatiu ENESCU, Tero Heikki Petteri KUOSMANEN
  • Patent number: 8831542
    Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by masking, such as cyclic redundancy check masking, to provide information regarding the antenna configuration and/or the transmission diversity scheme. In this regard, a set of masks can be determined based upon hamming distances between the masks and bit diversities between the masks and where each of the masks within the set is associated with an antenna configuration and a transmission diversity scheme.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: September 9, 2014
    Assignee: Nokia Corporation
    Inventors: Timo Eric Roman, Bernhard Raaf, Mieszko Chmiel
  • Patent number: 8811516
    Abstract: A method can include providing channel feedback to support efficient rank override For example, in such a method, a rank?r precoder index corresponding to a rank?r precoder is determined, and performance for each rank?1 precoder within the rank?r precoder is measured Based on the measured performance, a rank?1 precoder that maximizes performance is selected.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 19, 2014
    Assignee: Nokia Corporation
    Inventors: Tommi Tapani Koivisto, Timo Eric Roman, Mihai Horatiu Enescu, Karol Schober
  • Publication number: 20140206350
    Abstract: An approach is provided for searching and detecting cells. System synchronization sequences are detected. An information block on a control channel of one of a plurality of networks is decoded, in response to the detected synchronization sequences. The synchronization sequences are independent of the networks. The information block includes a system indicator specifying release version of the network.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: NOKIA CORPORATION
    Inventors: Mika Petri Olavi RINNE, Klaus HUGL, Timo Eric ROMAN
  • Publication number: 20140169565
    Abstract: Methods, apparatus and computer readable storage media are provided herein for scrambling code signalling in support of interference cancelling receivers. In some example embodiments, a method is provided that includes receiving scrambling code initialization parameters for at least one wanted codeword and for at least one interfering codeword from a base station. The method of this embodiment may also include detecting the at least one wanted codeword and the at least one interfering codeword in a transmission that is received from a base station. The method of this embodiment may also include decoding the at least one wanted codeword and the at least one interfering codeword. In some example embodiments, the decoded at least one interfering codeword is used in at least one of interference detection or interference cancellation.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 19, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Timo Eric ROMAN, Tommi Tapani KOIVISTO, Mihai Horatiu ENESCU, Karl Marko Juhani LAMPINEN
  • Publication number: 20140153488
    Abstract: A network node includes, into a field of downlink control information that provides a user equipment with information for reception and decoding of data transmitted from the network node to the user equipment in a mobile communication network, an indication of receiver information. The receiver information is applicable for interference suppression/cancellation by a receiving operation of the user equipment, capable of performing interference suppression/cancellation using the receiver information. The user equipment detects the receiver information from the downlink control information, and can select a receiving operation using the receiver information.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 5, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Tommi Tapani KOIVISTO, Mihai Horatiu ENESCU, Timo Eric ROMAN, Karl Marko Juhani LAMPINEN
  • Patent number: 8724489
    Abstract: An approach is provided for searching and detecting cells. System synchronization sequences are detected. An information block on a control channel of one of a plurality of networks is decoded, in response to the detected synchronization sequences. The synchronization sequences are independent of the networks. The information block includes a system indicator specifying release version of the network.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: May 13, 2014
    Assignee: Nokia Corporation
    Inventors: Mika Petri Olavi Rinne, Klaus Hugl, Timo Eric Roman
  • Publication number: 20130308479
    Abstract: An arrangement is described for adapting outer loop precoder phase combiner in a radio communication system having coordinated multipoint transmission. In the arrangement ACK/NACK-message received as a response to a transmitted data packet is used for adapting the phase. When a NACK-message is received the phase may be adapted or it may be further determined if the error was due to error in channel code or due to destructive inter-point signal combining. If the error was due to destructive combining the phase is adjusted.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 21, 2013
    Applicant: RENESAS MOBILE CORPORATION
    Inventors: Karol SCHOBER, Timo Eric ROMAN, Helka-Liina MAATTANEN, Mihai Horatiu ENESCU
  • Patent number: 8300587
    Abstract: A scrambling sequence is initialized using at least a cell identifier and an offset, and a physical downlink control information DCI is sent to a user equipment which indicates the offset. In more particular embodiments a user equipment-specific reference signal UE-RS is scrambled using the initialized scrambling sequence, and the scrambled UE-RS is sent to the UE for demodulating a downlink shared channel (PDSCH). In another exemplary embodiment the generated UE-RS is sent in a pilot part of a subframe transmission associated with the PDSCH and is for demodulating at least a data part of that subframe transmission. In a specific embodiment from the UE side, the UE receives the UE-RS and the DCI which indicates the offset, descrambles the UE-RS using a scrambling sequence that is initialized using a cell identifier and the indicated offset; and demodulates the PDSCH using the de-scrambled UE-RS.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: October 30, 2012
    Assignee: Nokia Corporation
    Inventors: Mieszko Chmiel, Peng Chen, Tommi Tapani Koivisto, Xiang Guang Che, Timo Eric Roman
  • Publication number: 20120201321
    Abstract: A method can include providing channel feedback to support efficient rank override For example, in such a method, a rank?r precoder index corresponding to a rank?r precoder is determined, and performance for each rank?1 precoder within the rank?r precoder is measured Based on the measured performance, a rank?1 precoder that maximizes performance is selected
    Type: Application
    Filed: October 29, 2010
    Publication date: August 9, 2012
    Applicant: NOKIA CORPORATION
    Inventors: Tommi Tapani Koivisto, Timo Eric Roman, Mihai Horatiu Enescu, Karol Schober
  • Publication number: 20120113851
    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: Application
    Filed: April 22, 2010
    Publication date: May 10, 2012
    Applicant: NOKIA CORPORATION
    Inventors: Karol Schober, Tommi Tapani Koivisto, Timo Eric Roman, Mihai Horatiu Enescu, Timo Erkki Lunttila
  • Patent number: 8135359
    Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by appropriately mapping a physical broadcast channel within a sub-frame so as to include reference signals indicative of different antenna configurations or transmission diversity schemes. Alternatively, masking, such as cyclic redundancy check masking, can be used to provide information regarding the antenna configuration and/or the transmission diversity scheme.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: March 13, 2012
    Assignee: Nokia Corporation
    Inventors: Bernhard Raaf, Timo Eric Roman, Mieszko Chmiel
  • Publication number: 20110305211
    Abstract: Disclosed is a method, apparatus and a computer readable memory medium that stores a program of computer instructions for enabling a resource allocation to be made for user equipment. The method includes forming a resource allocation for a particular system bandwidth, where the resource allocation has a larger number of resource blocks than a maximum number of resource blocks associated with the particular system bandwidth, while maintaining a same resource block group size as would be present with the maximum number of resource blocks for the particular system bandwidth. The step of forming includes the use of an extended parameter in a derivation of the resource allocation. The method further includes transmitting information descriptive of the resource allocation to user equipment. The resource allocation may be a downlink resource allocation or an uplink resource allocation.
    Type: Application
    Filed: September 25, 2008
    Publication date: December 15, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Timo Erkki Lunttila, Timo Eric Roman, Tommi Tapani Koivisto
  • Publication number: 20110243090
    Abstract: In accordance with the exemplary embodiments of the invention, there is described herein at least a method, executable computer program, and apparatus to form a resource allocation for a particular bandwidth, including defining at least one search space for a first bandwidth region used by a first user equipment and for a second bandwidth region used by a second user equipment, each search space including control channel elements, where there are first control channel elements in the first bandwidth region and second control channel elements in the second bandwidth region, and transmitting information descriptive of the resource allocation to the first user equipment and the second user equipment.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 6, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Asbjorn Grovlen, Lars Erik Lindh, Timo Eric Roman, Tommi Tapani Koivisto
  • Patent number: RE44649
    Abstract: A method, apparatus and computer program product are provided for conveying information regarding the antenna configuration and/or the transmission diversity scheme to a recipient, such as a mobile device. In particular, information regarding the antenna configuration and/or the transmission diversity scheme can be conveyed by appropriately mapping a physical broadcast channel within a sub-frame so as to include reference signals indicative of different antenna configurations or transmission diversity schemes. Alternatively, masking, such as cyclic redundancy check masking, can be used to provide information regarding the antenna configuration and/or the transmission diversity scheme.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: December 17, 2013
    Assignee: Nokia Corporation
    Inventors: Bernhard Raaf, Timo Eric Roman, Mieszko Chmiel