Patents by Inventor Hiroaki Aminaka

Hiroaki Aminaka 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).

  • RADIO STATION AND METHOD OF PROCESSING USER DATA WITH RADIO STATION
    Publication number: 20170079055
    Abstract: A radio station (1) includes a first part (1A) and at least one second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. The first part (1A) performs dynamic scheduling to allocate a plurality of radio resources to a plurality of mobile stations or user data. The second part (1B) performs signal processing including channel coding for transmitting downlink user data to an air interface and channel decoding for restoring uplink user data from a signal received from the air interface.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Applicant: NEC Corporation
    Inventors: Hiroaki AMINAKA, Kojiro HAMABE
  • RADIO STATION AND METHOD OF PROCESSING USER DATA WITH RADIO STATION
    Publication number: 20170041943
    Abstract: A radio station (1) includes a first part (1A) and a second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. Each of the first part (1A) and the second part (1B) includes a digital signal processing unit (11A, 11B) and is capable of alternatively performing digital signal processing for user data. An analog signal processing unit (13) arranged in the second part performs analog signal processing including at least one of frequency conversion and power amplification to provide an air interface to a mobile station.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Applicant: NEC Corporation
    Inventors: Hiroaki AMINAKA, Kojiro HAMABE
  • Radio station and method of processing user data with radio station
    Patent number: 9560542
    Abstract: A radio station (1) includes a first part (1A) and a second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. The first part (1A) includes a first scheduling unit (20A) capable of performing dynamic scheduling to allocate a plurality of radio resources to a plurality of mobile stations or user data. The second part (1B) includes a second scheduling unit (20B) capable of performing, instead of the first scheduling unit (20A), at least a part of dynamic scheduling for a first mobile station connected to the second part (1B) among the plurality of mobile stations.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: January 31, 2017
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Kojiro Hamabe
  • Radio station and method of processing user data with radio station
    Patent number: 9549415
    Abstract: A radio station (1) includes a first part (1A) and at least one second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part (1A). The first part (1A) includes a bearer termination unit (10) capable of terminating at least one bearer between an upper network and the radio station (1). The second part (1B) includes a physical layer signal processing unit (12) that performs physical layer signal processing. The physical layer signal processing includes channel coding and decoding for user data pertaining to a first mobile station connected to the second part (1B) among a plurality of mobile stations.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: January 17, 2017
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Kojiro Hamabe
  • Method and device for allocating common channel resources
    Patent number: 9544918
    Abstract: A resource allocation method and device are provided that can achieve uniform loads on and stable quality of a common channel available to mobile stations having no dedicated channels. A method for allocating common channel resources in a system in which a plurality of first radio communication devices transmit data to a second radio communication device over a common channel, based on first resource allocation information, includes: by the second radio communication device, transmitting second resource allocation information to at least one of the first radio communication devices; and by each of the first radio communication devices, transmitting data to the second radio communication device over the common channel, based on any one of the first resource allocation information and the second resource allocation information.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: January 10, 2017
    Assignee: NEC CORPORATION
    Inventors: Hiroaki Aminaka, Kojiro Hamabe, Jinsock Lee
  • Radio communication system, radio terminal, radio network, radio communication method and program
    Patent number: 9544796
    Abstract: A wireless communication system that includes: a setting notifier for notifying, to a radio terminal, setting information related to at least one of the radio terminal's collection of measurement information and the radio terminal's reporting of the measurement information to a radio network; a status notifier for notifying, to the radio network, a status related to at least one of the radio terminal's collection of the measurement information and the radio terminal's reporting of the measurement information; and a re-establisher for receiving the status and determining whether to re-establish the setting information.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 10, 2017
    Assignee: NEC CORPORATION
    Inventors: Hisashi Futaki, Kosei Kobayashi, Hiroaki Aminaka
  • Radio station and method of processing user data with radio station
    Patent number: 9538505
    Abstract: A radio station (1) includes a first part (1A) and at least one second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. The first part (1A) performs dynamic scheduling to allocate a plurality of radio resources to a plurality of mobile stations or user data. The second part (1B) performs signal processing including channel coding for transmitting downlink user data to an air interface and channel decoding for restoring uplink user data from a signal received from the air interface.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: January 3, 2017
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Kojiro Hamabe
  • RADIO STATION AND METHOD OF PROCESSING USER DATA WITH RADIO STATION
    Publication number: 20160374102
    Abstract: A radio station (1) includes a first part (1A) and at least one second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1 A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part (1A). The first part (1A) includes a bearer termination unit (10) capable of terminating at least one bearer between an upper network and the radio station (1). The second part (1B) includes a physical layer signal processing unit (12) that performs physical layer signal processing. The physical layer signal processing includes channel coding and decoding for user data pertaining to a first mobile station connected to the second part (1B) among a plurality of mobile stations.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Applicant: NEC Corporation
    Inventors: Hiroaki AMINAKA, Kojiro HAMABE
  • RADIO STATION AND METHOD OF PROCESSING USER DATA WITH RADIO STATION
    Publication number: 20160373959
    Abstract: A radio station (1) includes a first part (1A) and a second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. The first part (1A) includes a first scheduling unit (20A) capable of performing dynamic scheduling to allocate a plurality of radio resources to a plurality of mobile stations or user data. The second part (1B) includes a second scheduling unit (20B) capable of performing, instead of the first scheduling unit (20A), at least a part of dynamic scheduling for a first mobile station connected to the second part (1B) among the plurality of mobile stations.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Applicant: NEC Corporation
    Inventors: Hiroaki AMINAKA, Kojiro HAMABE
  • Radio station and method of processing user data with radio station
    Patent number: 9521684
    Abstract: A radio station (1) includes a first part (1A) and at least one second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part (1A). The first part (1A) includes a bearer termination unit (10) capable of terminating at least one bearer between an upper network and the radio station (1). The second part (1B) includes a physical layer signal processing unit (12) that performs physical layer signal processing. The physical layer signal processing includes channel coding and decoding for user data pertaining to a first mobile station connected to the second part (1B) among a plurality of mobile stations.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: December 13, 2016
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Kojiro Hamabe
  • Radio station and method of processing user data with radio station
    Patent number: 9516539
    Abstract: A radio station (1) includes a first part (1A) and a second part (1B). The second part (1B) can be arranged so as to be physically separated from the first part (1A) and is connected to the first part (1A) via a transmission line (40) so as to be able to communicate with the first part. The first part (1A) includes a first scheduling unit (20A) capable of performing dynamic scheduling to allocate a plurality of radio resources to a plurality of mobile stations or user data. The second part (1B) includes a second scheduling unit (20B) capable of performing, instead of the first scheduling unit (20A), at least a part of dynamic scheduling for a first mobile station connected to the second part (1B) among the plurality of mobile stations.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: December 6, 2016
    Assignee: NEC Corporation
    Inventors: Hiroaki Aminaka, Kojiro Hamabe
  • RADIO TERMINAL, RADIO STATION, RADIO COMMUNICATION SYSTEM, AND METHODS IMPLEMENTED THEREIN
    Publication number: 20160316386
    Abstract: In one embodiment, a radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100). This embodiment therefore contributes to simplification of a measurement function which should be supported by the radio terminal when the radio communication system uses a shared frequency (e.g., TVWS) shared by the plurality of radio systems.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 27, 2016
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA, Hiroto SUGAHARA, Yoshikazu KAKURA, Kazushi MURAOKA
  • COMMUNICATION SYSTEM, MOBILE STATION, BASE STATION, RESPONSE DECISION METHOD, RESOURCE CONFIGURATION DECISION METHOD, AND PROGRAM
    Publication number: 20160302190
    Abstract: It is possible to solve the problem that a downstream control information amount is significantly increased if allocation information is periodically reported because no allocation method of a default E-DCH resource configuration is defined for a preamble signature. A base station and a mobile station decide a default resource configuration by using a total number of resource configurations or a value obtained from the total number.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Applicant: NEC CORPORATION
    Inventors: Hiroaki AMINAKA, Jinsock LEE
  • RADIO COMMUNICATION SYSTEM, RADIO TERMINAL, RADIO NETWORK, RADIO COMMUNICATION METHOD AND PROGRAM
    Publication number: 20160302095
    Abstract: A radio terminal, which has a function to collect and report measurement information designated by a radio network, comprises: means for receiving collection/reporting control information related to the radio terminal's execution of at least one of the collection of measurement information and the reporting of the measurement information to the radio network; and control means for executing, based on the collection/reporting control information, at least one of the collection and the reporting if execution determination information, which is related to at least one of the collection of the measurement information and the reporting of the measurement information to be executed by the local terminal, satisfies a given determination criterion.
    Type: Application
    Filed: May 18, 2016
    Publication date: October 13, 2016
    Applicant: NEC CORPORATION
    Inventors: Hisashi FUTAKI, Hiroaki AMINAKA
  • RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, RADIO TERMINAL, AND COMMUNICATION CONTROL METHOD
    Publication number: 20160262149
    Abstract: A radio communication system includes a first base station (11) that manages a first cell (110), a second base station (12) that manages a second cell (120), and a radio terminal (2). The radio terminal (2) supports dual connectivity involving a bearer split in which a first network bearer between the radio terminal (2) and a core network (3) is split over the first base station (11) and the second base station (12). The first base station (11) receives, from the second base station (12), bearer split status information about communication of the first network bearer in the second base station (12), and performs control of an access stratum related to the first network bearer. It is thus possible to contribute, for example, to an improvement in control of an access stratum when dual connectivity involving a bearer split is performed.
    Type: Application
    Filed: May 7, 2014
    Publication date: September 8, 2016
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Hiroto SUGAHARA, Hiroaki AMINAKA
  • RADIO COMMUNICATION SYSTEM, BASE STATION, COMMUNICATION METHOD, MOBILE STATION, AND COMPUTER-READABLE MEDIUM
    Publication number: 20160255558
    Abstract: A base station (1) is connectable to a mobile station (4) by a plurality of Radio Access Technologies (RATs) including first and second RATs. The base station (1) is configured to be able to use a communication path (400) that passes through a first upstream network (140) corresponding to the first RAT, when the mobile station (4) performs communication via the second RAT. This enables, for example, efficient use of the upstream networks when the Multi-RAT base station (1) supports a plurality of upstream networks.
    Type: Application
    Filed: May 10, 2016
    Publication date: September 1, 2016
    Applicant: NEC CORPORATION
    Inventors: Hiroaki AMINAKA, Yasuhiro MIZUKOSHI, Ippei AKIYOSHI
  • Radio terminal, radio station, radio communication system, and methods implemented therein
    Patent number: 9420482
    Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: August 16, 2016
    Assignee: NEC Corporation
    Inventors: Hisashi Futaki, Hiroaki Aminaka, Hiroto Sugahara, Yoshikazu Kakura, Kazushi Muraoka
  • USER EQUIPMENT AND METHOD FOR RESOURCE ALLOCATION
    Publication number: 20160227587
    Abstract: To solve a problem that unless all of a plurality of AICH signature states are correctly decoded, the contents of reception results cannot be recognized and the error rate of signature decoding will be high. In this embodiment, a base station uses, out of a signature combination, the signature of at least one predetermined position to indicate information containing a preamble reception result and uses the signature of a position other than the predetermined position to indicate a transmission profile information number of an uplink channel for notification to a user equipment. Thus, the error rate related to reception results can be reduced as compared with the case where a single signature combination is used to notify all pieces of information.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 4, 2016
    Inventors: Hiroaki AMINAKA, Kojiro HAMABE, Jinsock LEE
  • Communication system, mobile station, base station, response decision method, resource configuration decision method, and program
    Patent number: 9392581
    Abstract: It is possible to solve the problem that a downstream control information amount is significantly increased if allocation information is periodically reported because no allocation method of a default E-DCH resource configuration is defined for a preamble signature. A base station and a mobile station decide a default resource configuration by using a total number of resource configurations or a value obtained from the total number.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: July 12, 2016
    Assignee: NEC CORPORATION
    Inventors: Hiroaki Aminaka, Jinsock Lee
  • RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, COMMUNICATION CONTROL METHOD, AND COMPUTER READABLE MEDIUM
    Publication number: 20160198390
    Abstract: A first base station (1) is configured to send, to a second base station (2), first configuration information that is necessary to establish a data bearer and a data radio bearer in the second base station (2) for a C/U-plane split scenario (S105). Further, the first base station (1) is configured to keep the first configuration information in the first base station (1) even after the data bearer and the data radio bearer are established in the second base station (2) (S109). It is thus, for example, possible to contribute to a reduction in a path switch delay when a UE moves between cells in the C/U-plane split scenario.
    Type: Application
    Filed: August 6, 2013
    Publication date: July 7, 2016
    Inventors: Hiroaki AMINAKA, Hisashi FUTAKI