Patents by Inventor Karri Ranta-Aho

Karri Ranta-Aho 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: 7916749
    Abstract: A method and apparatus are provided for jointly encoding bits containing information about an existing modulation technique or an existing antenna transmission technique in order to extend signaling to include new information about an additional modulation technique or the use of an additional antenna transmission technique without having to increase the number of bits transmitted in the signaling; and conveying the new information in unused combinations of the encoded bits. The signaling may take the form of a high speed shared control channel (HS-SCCH) that forms part of a high speed downlink packet access (HSDPA). In some embodiments, the existing modulation technique may include quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (16QAM), or some combination thereof, and the additional modulation technique may include 64 quadrature amplitude modulation (64QAM).
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: March 29, 2011
    Assignee: Nokia Corporation
    Inventors: Ville Haikola, Karri Ranta-aho, Jorma Kaikkonen, Marko Lampinen, Javier Flors-Sidro
  • Patent number: 7894390
    Abstract: User equipment for communicating data in a communications system comprising a set of user equipment; comprising: a transceiver arranged to receive at least one data packet over a communications channel, wherein the data packet comprises an identifier; and a processor arranged to determine from the identifier if the said user equipment is one of the a subset of user equipment, wherein the processor is arranged to determine if the first identifier is one of the subset of user equipment when the identifier matches a first value if the communications channel is a common channel or a second value if the communications channel is a dedicated channel.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: February 22, 2011
    Assignee: Nokia Corporation
    Inventors: Masatoshi Nakamata, Karri Ranta-aho, Juho Pirskanen, Esa Malkamaki
  • Publication number: 20110038305
    Abstract: Apparatus, methods and computer program products operate a radio network controller in a wireless communications system to determine a factor to be used by user equipment operative in the wireless communications network to determine a gain factor for an E-TFC based on the gain factor of a reference E-TFC; and to signal the factor to the user equipment. The radio network controller may select the factor based on at least one criterion. In another aspect, apparatus, methods and computer program products operate user equipment to receive a factor from a wireless communications network, and to use the factor transmitted by the wireless communications network to determine a gain factor that relates a data signal to be transmitted by the user equipment in a data channel and a control signal transmitted by the electronic device in a control channel, where the control signal transmitted in the control channel carries information for use in receiving the data signal.
    Type: Application
    Filed: December 19, 2007
    Publication date: February 17, 2011
    Applicant: NOKIA CORPORATION
    Inventors: Perttu Mella, Karri Ranta-Aho
  • Patent number: 7848279
    Abstract: The invention describes user equipment for communicating data in a communications system comprising a set of user equipment; comprising a transceiver arranged to receive a first data packet over a communications data channel and an associated second data packet over a communications control channel. The second data packet comprises a first identifier arranged to identify a subset of the set of user equipment and the first data packet comprises a second identifier arranged to identify at least one of the subset of user equipment. The user equipment further comprising a processor arranged to determine from the second data packet first identifier if the said user equipment is one of the said subset of user equipment and from the second identifier if the said user equipment is said the at least one of the subset of user equipment.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: December 7, 2010
    Assignee: Nokia Corporation
    Inventors: Karri Ranta-aho, Harri Holma, Juho Pirskanen
  • Publication number: 20100208682
    Abstract: A method and apparatus are provided for defining terminal behavior in a case where the terminal detects that it cannot receive the HS-DSCH from a serving cell reliably when the DCCH is mapped to HS-DSCH (e.g. does not receive any radio link control (RLC) acknowledged mode feedback for the uplink measurement reports or in general the common pilot channel (CPICH) level drops too low in the serving HS-DSCH cell). The terminal is autonomously moved to a cell forward access channel (CELL_FACH) state and uplink signaling is initiated on a random access channel (RACH) to inform a network node and ask for HS-DSCH re-establishment in a suitable cell (preferably in the one being strongest one in the active set or according to the measurements done prior the connection from the serving HS-DSCH cell was lost), or setting up a regular R?99/R?5 DPCH in order to restore the RRC signaling connection in the CELL_DCH state.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 19, 2010
    Applicant: NOKIA CORPORATION
    Inventors: Karri RANTA-AHO, Antti TOSKALA
  • Patent number: 7768962
    Abstract: A method and equipment by which a radio access network of a wireless network communicates to a user equipment wireless communication device an indication that the user equipment is to flush one or more send buffers. A flag is included in a message to indicate that the one or more send buffers are to be flushed. The message is for example a message indicating reconfiguration is to be performed, and the flag (if set) is to be interpreted by the user equipment as indicating that the one or more send buffers are to be flushed prior to performing the reconfiguration. A corresponding method and equipment for a user equipment wireless communication device are also provided.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: August 3, 2010
    Assignee: Nokia Corporation
    Inventors: Keiichi Kubota, Benoist Sebire, Juho Pirskanen, Karri Ranta-Aho, Luis Miguel Santos Barreto, Michael Whitehead
  • Patent number: 7751382
    Abstract: The specification and drawings present a new method, system, apparatus and software product for defining/setting a power of a dual acknowledgement signal provided in an uplink by a user equipment to a network element (e.g., Node B) for acknowledging two transport blocks, e.g., comprised in one TTI, transmitted in a downlink by the network element, according to a predetermined criterion, wherein the user equipment and the network element can be configured to support a multiple input multiple output (MIMO) mode and/or a high speed downlink packet access.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: July 6, 2010
    Assignee: Nokia Corporation
    Inventors: Karri Ranta-Aho, Masatoshi Nakamata, Jorma Kaikkonen
  • Patent number: 7715430
    Abstract: The modulation indication bit is interpreted as a QPSK/xQAM modulation indication if both the user equipment and the serving cell support 64QAM modulation, such that if QPSK is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted as is presently interpreted today as defined in the 3GPP release 5 specification, and if xQAM is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted such that only 6 bits are used for code information and one bit is stolen for use for the 16QAM/64QAM selection.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 11, 2010
    Assignee: Nokia Corporation
    Inventors: Karri Ranta-Aho, Jorma Kaikkonen
  • Publication number: 20090268676
    Abstract: Apparatus, methods and computer program products in a wireless communications system provide an enhanced dedicated channel (E-DCH) for use by user equipment operating in the wireless communications system for use in conjunction with the random access procedure. The user equipment has circuitry to request a HS random access channel and, in response to receiving an assignment from a Node B of a dedicated mode channel for use as the random access channel, to send uplink data in a random access fashion over the assigned dedicated mode channel while receiving feedback from the Node B over at least one downlink L1 feedback channel. The Node B has circuitry to assign to the UE the dedicated mode channel for use as the random access channel, to receive uplink data in a random access fashion over the assigned dedicated mode channel, and to send feedback information to the UE over at least one downlink L1 feedback channel.
    Type: Application
    Filed: September 27, 2007
    Publication date: October 29, 2009
    Inventors: Jeroen Wigard, Karri Ranta-Aho, Harri Holma
  • Patent number: 7606205
    Abstract: The invention provides a method and system for providing multicasting content in a network having several cells which can communicate with one or more terminals such as user equipments, the terminals being able to select which cell or cells they desire to communicate which, wherein at least some of the cells transmitting multicasting content also transmit cell information on one or more other cells transmitting the same multicasting content, the terminal or terminals selecting one of the cells transmitting multicasting content which the terminal intends to receive, based on this information.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: October 20, 2009
    Assignee: Nokia Corporation
    Inventors: Karri Ranta-Aho, Antti Toskala
  • Publication number: 20090141675
    Abstract: This invention relates to signalling of control information related to retransmissions in a wireless communication network. According to one aspect of the invention, a method for controlling transmission over a wireless communication link is provided. The method comprises the step of indicating on a transmission resource control channel whether a HARQ retransmission process in a mobile station should be activated or deactivated.
    Type: Application
    Filed: March 24, 2006
    Publication date: June 4, 2009
    Inventors: Benoist Sebire, Karri Ranta-Aho
  • Publication number: 20090131052
    Abstract: An approach is provided for cell re-selection. A notification message is generated to indicate initiation of a coverage area re-selection procedure to operate in a new coverage area from a current coverage area. The re-selection procedure is performed if an acknowledgement message is received in response to the notification message.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 21, 2009
    Applicant: Nokia Corporation
    Inventors: Sami-Jukka Hakola, Karri Ranta-aho, Markus Klaus Andreas Wimmer, Thomas Stadler
  • Publication number: 20090073904
    Abstract: The specification and drawings present a new method, system, apparatus and software product for defining/setting a power of a dual acknowledgement signal provided in an uplink by a user equipment to a network element (e.g., Node B) for acknowledging two transport blocks, e.g., comprised in one TTI, transmitted in a downlink by the network element, according to a predetermined criterion, wherein the user equipment and the network element can be configured to support a multiple input multiple output (MIMO) mode and/or a high speed downlink packet access.
    Type: Application
    Filed: July 18, 2007
    Publication date: March 19, 2009
    Inventors: Karri Ranta-aho, Masatoshi Nakamata, Jorma Kaikkonen
  • Publication number: 20090073953
    Abstract: During a radio link setup or reconfiguration or addition procedures, a serving radio network controller SRNC sends a request or prepare message to a drift radio network controller DRNC with a slot format information element IE, to which the DRNC sends a reply. During a physical channel reconfiguration process the DRNC sends a request to the SRNC with the slot format IE. In all cases, the DRNC uses the IE to determine the slot format for its fractional dedicated physical channel, and reconfigures it with the node B according to the IE.
    Type: Application
    Filed: July 3, 2008
    Publication date: March 19, 2009
    Inventors: Masatoshi Nakamata, Karri Ranta-aho
  • Publication number: 20080212608
    Abstract: A method and apparatus are provided for jointly encoding bits containing information about an existing modulation technique or an existing antenna transmission technique in order to extend signaling to include new information about an additional modulation technique or the use of an additional antenna transmission technique without having to increase the number of bits transmitted in the signaling; and conveying the new information in unused combinations of the encoded bits. The signaling may take the form of a high speed shared control channel (HS-SCCH) that forms part of a high speed downlink packet access (HSDPA). In some embodiments, the existing modulation technique may include quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (16QAM), or some combination thereof, and the additional modulation technique may include 64 quadrature amplitude modulation (64QAM).
    Type: Application
    Filed: January 9, 2008
    Publication date: September 4, 2008
    Inventors: Ville Haikola, Karri Ranta-aho, Jorma Kaikkonen, Marko Lampinen, Javier Flors-Sidro
  • Publication number: 20080212615
    Abstract: Disclosed are a user equipment and a communications node for communicating data in a communications system including a plurality of user equipments, as well as a method for communicating the data by a user equipment and a method for communicating data by a communications node, wherein data are transmitted from the communications node via a downlink shared channel and received by the user equipment. The user equipment comprises an acknowledger which provides uplink acknowledgements with respect to downlink shared channel transmission for user equipments without a dedicated connection which acknowledgements are received by an acknowledgement receiver included in the communications node. The uplink acknowledgements are transferred through a common uplink feedback channel.
    Type: Application
    Filed: June 15, 2007
    Publication date: September 4, 2008
    Inventors: Karri Ranta-Aho, Juho Pirskanen, Harri Holma
  • Publication number: 20080192766
    Abstract: A method, an apparatus and a communication system for collision detection for a random access procedure for an uplink data channel. In one embodiment, the apparatus includes a module configured to transmit a data transmission on the uplink data channel, and an uplink scheduling and signal generating module configured to select random access parameters for a random access procedure and schedule the data transmission using the random access parameters for the random access procedure. The uplink scheduling and signal generating module is also configured to interrupt the data transmission after a predetermined time interval if the apparatus does not receive a permission signal from a network element during the predetermined time interval.
    Type: Application
    Filed: January 25, 2008
    Publication date: August 14, 2008
    Inventors: Karri Ranta-Aho, Harri Holma, Jeroen Wigard, Antti Toskala, Juho Pirskanen
  • Publication number: 20080123548
    Abstract: Abstract There is provided a radio system, comprising: a receiver for receiving uplink channel traffic; a measuring unit for measuring periodicity of the received uplink channel traffic; and a control unit for controlling discontinuous uplink operation on the basis of the measured periodicity of the received uplink channel traffic.
    Type: Application
    Filed: October 24, 2007
    Publication date: May 29, 2008
    Inventors: Karri Ranta-aho, Antti Toskala
  • Publication number: 20080117873
    Abstract: The modulation indication bit is interpreted as a QPSK/xQAM modulation indication if both the user equipment and the serving cell support 64QAM modulation, such that if QPSK is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted as is presently interpreted today as defined in the 3GPP release 5 specification, and if xQAM is indicated, the 7 code-set information bits in the HS-SCCH part 1 structure is interpreted such that only 6 bits are used for code information and one bit is stolen for use for the 16QAM/64QAM selection.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 22, 2008
    Inventors: Karri Ranta-Aho, Jorma Kaikkonen
  • Patent number: 7376426
    Abstract: A radio network element, including means for receiving data packets from a user equipment in a soft handover connection, means for determining whether the received data blocks have been received successfully or unsuccessfully, means for running a retransmission process for an un-successfully received data packet, and means for receiving control information instructing the size of memory to be reserved for retransmission processes of the connection.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: May 20, 2008
    Assignee: Nokia Corporation
    Inventors: Masatoshi Nakamata, Benoist Sebire, Karri Ranta-Aho