Patents by Inventor Tsuyoshi Kashima

Tsuyoshi Kashima 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: 7552169
    Abstract: A device for transmitting a message for reception by another device, comprising: a processor for adding location information to the message, before transmission, wherein the location information identifies an area within which the message is to be hosted for reception by the other device; and a transmitter for transmitting the message, with the location information.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: June 23, 2009
    Assignee: Nokia Corporation
    Inventors: Leping Huang, Tsuyoshi Kashima
  • Publication number: 20090116415
    Abstract: According to one aspect of the present invention, a relay station including a first antenna, a second antenna, a transmitter circuit that converts a baseband signal into an RF signal to be transmitted, a receiver circuit that extracts the baseband signal from the received RF signal, a switching unit that switches between a first state in which the first antenna is connected to the receiver circuit, and the second antenna is connected to the receiver circuit, and a second state in which the first antenna is connected to the receiver circuit, and the second antenna is connected to the transmitter circuit, and a communication controlling unit that extracts the baseband signal created from the RF signal received from either one of the first or second communication devices and then, after a predetermined process is applied to the communication data contained in the baseband signal, the communication controlling unit transmits the communication data through the transmitter circuit to another communication device is
    Type: Application
    Filed: August 29, 2005
    Publication date: May 7, 2009
    Inventors: Tsuyoshi Kashima, Houtao Zhu
  • Publication number: 20090103484
    Abstract: The invention relates to the design of power sequences for use in a group of sub-areas of a wireless communication system. Each power sequence defines for one of the sub-areas transmission power values for transmissions using a respective one of a plurality of medium access units. For each of the sub-areas of the group, reception quality values are determined for transmissions between an access station serving the sub-area and mobile stations located at an edge of the sub-area. The reception quality values allow meeting system. The reception quality values are then converted for each of the sub-areas into transmission power values of a power sequence.
    Type: Application
    Filed: September 15, 2005
    Publication date: April 23, 2009
    Inventors: Kodo Shu, Tsuyoshi Kashima, Sami Savio, Kari J. Leppanen
  • Publication number: 20090100167
    Abstract: A device for transmitting a message for reception by another device, comprising: a processor for adding location information to the message, before transmission, wherein the location information identifies an area within which the message is to be hosted for reception by the other device; and a transmitter for transmitting the message, with the location information.
    Type: Application
    Filed: December 9, 2008
    Publication date: April 16, 2009
    Inventors: Leping Huang, Tsuyoshi Kashima
  • Publication number: 20090088195
    Abstract: An approach is provided for signaling of scheduling information. A determination of one or more parameters for inclusion as scheduling information is made. A message containing the scheduling information in a header field is generated, wherein the one or more parameters include at least one of buffer status information, power headroom information, or a combination thereof.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Applicant: Nokia Corporation
    Inventors: Claudio Rosa, Benoist P. Sebire, Tsuyoshi Kashima
  • Patent number: 7444416
    Abstract: A method for controlling access to an electronic message comprising: specifying an addressee for an electronic message; determining a message context for the electronic message by specifying one or more conditions selected from a group comprising a time condition, a location of the addressee condition and at least one other condition concerning the environment of the addressee, wherein the message context defines conditions that must be satisfied before the addressee of the message can access the message; detecting the context of the addressee and comparing the context of the addressee with the message context; and enabling access by the addressee to the electronic message when the detected context of the addressee corresponds to the message context.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: October 28, 2008
    Assignee: Nokia Corporation
    Inventors: Tsuyoshi Kashima, Yoshiya Hirase, Shu Kawamura
  • Publication number: 20080161080
    Abstract: Systems, methods, devices, and computer program products are provided for exercising the user's brain, and in particular the user's short-term memory. More particularly, a gaming application is provided that may be executed by the processor of an electronic device, such as a mobile terminal. The gaming application provides a game where the user gains an advantage in the game by using his or her short-term memory. The amount of information that the user must store in his or her short-term memory may be adjusted based on the user's performance in the game. A popular puzzle-like game involving the manipulation of a sequence of polyominoes may be improved upon to provide short-term memory testing or training.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Shinya Terasaki, Yoshiya Hirase, Tsuyoshi Kashima
  • Publication number: 20080031191
    Abstract: An allocation of radio resources is signaled with a multi-user multiple-input-multiple-output MU-MIMO field indicating whether MU-MIMO is enabled in the allocation. The structure of the signal allocating the resources changes depending on whether the MU-MIMO field indicates enabled or not. For downlink signaling, an additional length field indicates a length of another component of the allocation apart from that listing user identifiers. A component listing which resource blocks are allocated for MU-MIMO is one embodiment, and it may be split to indicate per-stream. Multiple embodiments are shown with various assumptions as to mapping between components of the resource allocation and tradeoffs of flexibility and signaling overhead, for method, apparatus, program, and chip.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 7, 2008
    Inventors: Tsuyoshi Kashima, Olav E. Tirkkonen
  • Publication number: 20080009289
    Abstract: Methods, computer program products, electronic devices and information blocks are provided that improve both efficiency of transmission and efficiency of segmentation by enabling an intelligent transport block size determination and a flexible segmentation scheme suitable for utilization with retransmission. One exemplary method involves steps of: determining a size of a transport block based on criteria including a size of at least one data block to be transmitted, wherein the transport block size is determined such that the transport block will include at least one segment of a data block of the at least one data block; segmenting the data block of the at least one data block into a plurality of segments including the at least one segment; and populating the transport block with at least the at least one segment.
    Type: Application
    Filed: January 4, 2007
    Publication date: January 10, 2008
    Inventors: Tsuyoshi Kashima, Mika Rinne, Jukka Ranta, Paivi Purovesi
  • Publication number: 20080010677
    Abstract: The exemplary embodiments of the invention provide apparatus, methods and computer program products that enable improved sequence number handling in networks, such as an evolved universal terrestrial radio access network (E-UTRAN), for example. In one non-limiting, exemplary embodiment, a method includes: generating a sequence number offset value; and transmitting a protected message having the generated sequence number offset value over a wireless communication link from a first device towards a second device, wherein the generated sequence number offset value is for use by the second device in generating a sequence number for a subsequent transmission. As non-limiting examples, the first device may be one of a mobile station or a base station, the second device may be one of a mobile station, a base station or a center node, and if one of the first device or the second device is a mobile station then the other of the first device and the second device is not a mobile station.
    Type: Application
    Filed: June 25, 2007
    Publication date: January 10, 2008
    Inventors: Tsuyoshi Kashima, Dan Forsberg, Vinh Phan, Benoist Sebire, Dajiang Zhang
  • Publication number: 20070275729
    Abstract: A method of allocating resources to cells of a cellular communication system comprising the steps of determining a load in at least one of the cells; selecting a resource reuse pattern from a set of resource reuse patterns based on the determined load; allocating resources in accordance with the selected resource reuse pattern.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Tsuyoshi Kashima, Kodo Shu
  • Publication number: 20070258373
    Abstract: A method, terminal device, network element, and computer program product for signalling a scheduling information used for indicating resource allocation states of a plurality of available resource blocks to a plurality of scheduled devices are disclosed, wherein a resource allocation state is set for each of the available resource blocks and multiplied by the number of possible allocation states to the power of a sequential number of the resource block. Then, the multiplication results of all available resource blocks are summed and the summing result is transmitted to the plurality of scheduled devices. Thereby, the required amount of signalling bits can be reduced considerably, while still maintaining the same signalling content.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 8, 2007
    Inventors: Frank Frederiksen, Tsuyoshi Kashima, Troels Kolding
  • Publication number: 20070248025
    Abstract: A method, computer program, and apparatus adaptively select a segmentation option for service data units based on a bandwidth allocation. In general terms, one of a first segmentation option or a second segmentation option is selected based on a bandwidth allocation that is selected from among several possible bandwidth allocation options. A service data unit is segmented according to the selected segmentation option and wirelessly transmitted. In an embodiment, the first segmentation option uses a predetermined length such as a fixed length that may be chosen to match an IP packet size, or a predetermined maximum length to which the size of segmented units are constrained, and segmentation occurs prior to packet scheduling. In an embodiment, the second segmentation option uses a dynamic length that changes per transmission time interval, and segmentation occurs after packet scheduling and after the size of the transport block is determined.
    Type: Application
    Filed: February 13, 2007
    Publication date: October 25, 2007
    Inventors: Vinh Phan, Tsuyoshi Kashima, Kimmo Kettunen
  • Publication number: 20070242636
    Abstract: A number N physical resource blocks PRBs are allocated among M users in a single control signal, in which some PRBs are allocated as localized to only one user UE and some PRBs are allocated as distributed among multiple UEs. The control signal includes M allocation entries, allocation type bits and a user index sequence of N user indexes. Each allocation entry comprises a UE-ID for indicating to which user a corresponding resource is allocated, where an order of the allocation entries indicates a relationship between the user index and the UE-ID. Individual ones of the allocation type bits corresponds to an individual one of the UE index. The allocation type bits indicate whether a corresponding UE is to use localized allocation or distributed allocation.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 18, 2007
    Inventors: Tsuyoshi Kashima, Olav Tirkkonen, Sigit Jarot, Jussi Kahtava
  • Publication number: 20070217362
    Abstract: A method for allocation of multi-carrier transmission resources to terminal devices in a network cell of a radio access network, the transmission resources being dividable into symbol-duration time spans in a time domain and into a plurality of sub-carriers in a frequency domain, comprises allocating to a respective terminal device a group of consecutive symbol-duration time spans in the time domain and at least one respective sub-carrier block in the frequency domain, the at least one respective sub-carrier block being formed by a group of respective consecutive sub-carriers. The allocating comprises allocating a respective sub-carrier block and the group of symbol-duration time spans according to one respective allocation type, which is either a localized or a distributed allocation type, the localized allocation type allocating them to one respective terminal device, and the distributed allocation type allocating them to a respective set of terminal devices.
    Type: Application
    Filed: July 14, 2006
    Publication date: September 20, 2007
    Inventors: Tsuyoshi Kashima, Sigit Jarot
  • Publication number: 20070189332
    Abstract: Apparatus, methods, computer program products and data structures are provided that enable effective in-band signaling and data structures for adaptive control and operation of segmentation. An exemplary method includes: determining, during an ongoing wireless communication, that a current communication scheme is to be changed to a new communication scheme including one of a new segmentation scheme or a new non-segmentation scheme; and sending a control protocol data unit (C-PDU) from a first device to a second device, wherein the C-PDU includes identification information identifying the new communication scheme and control information related to the new communication scheme.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 16, 2007
    Inventors: Vinh Phan, Tsuyoshi Kashima, Kimmo Kettunen, Jukka Ranta
  • Publication number: 20070177630
    Abstract: A method includes receiving at least one transport block and determining from the at least one transport block a first data unit, wherein a portion but not all of the first, data unit includes a second data unit; determining information corresponding to acknowledgement status of the first data unit; determining, based at least on the information, whether a request should be performed requesting retransmission of the second data unit; and performing the request in response to a determination the request should be performed. Another method includes determining information corresponding to acknowledgement status of a previously transmitted data unit, wherein a portion but not all of the previously transmitted data unit includes a second data unit; determining, based at least on the information, whether retransmission of the second data unit should occur; and performing the retransmission of the second data unit in response to a determination the retransmission should be performed.
    Type: Application
    Filed: November 29, 2006
    Publication date: August 2, 2007
    Inventors: Jukka Ranta, Tsuyoshi Kashima, Esa Malkamaki, Jussi Kahtava, Kimmo Kettunen, Vinh Phan
  • Publication number: 20070173261
    Abstract: A system for using a predetermined sequence of transmission modes together with power sequencing in order to reduce signaling while improving SNIR levels. Each sequence comprises a vector of transmission modes, where each mode can include a signal constellation, a concatenated channel coding type and rate and, for multiple-input multiple-output systems, one type of matrix modulation. Base transceiver stations can estimate the interference condition for each piece of user equipment and, based on this information, will preferably decide an optimal sequence for each item of user equipment.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 26, 2007
    Inventors: Paolo Priotti, Kodo Shu, Tsuyoshi Kashima
  • Publication number: 20070153742
    Abstract: A method is presented for handing over a mobile device from a source base station to a target base station. A plurality of service data units are segmented, in the source base station, at a medium access control layer. The segments produced by the segmentation are transmitted, after which a handover command is issued to a user device. The segmentation can alternatively be performed at the user device.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 5, 2007
    Inventors: Benoist Sebire, Tsuyoshi Kashima
  • Publication number: 20070097866
    Abstract: The specification and drawings present a new method, system, apparatus and software product for varying a length of a radio link ID (RLID) of a user equipment for resource allocation in mobile communication systems. This allows to employ shorter RLID lengths than it is necessary if all user equipments (UEs) in the active mode are uniquely identified simultaneously, thus providing considerable savings in the signaling resource on the physical layer.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 3, 2007
    Inventors: Jussi Kahtava, Tsuyoshi Kashima