公开(公告)号：US10863478B2

公开(公告)日：2020-12-08

申请号：US16776330

申请日：2020-01-29

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W76/28 ,  H04W68/02 ,  H04W68/00 ,  H04W52/02

Abstract: A user equipment, method, and chipset use a first formula to determine a paging frame which is a radio frame including a paging occasion for the user equipment after the user equipment is configured with an idle mode extended DRX (Discontinuous Reception) cycle, a second formula to determine a subframe from among the paging frame, as the paging occasion, and a third formula to determine a paging hyper-frame. DRX parameters are applied to the first formula and the second formula, but not to the third formula. An idle mode extended DRX cycle is applied to the third formula, which is represented by H-SFN mod TeDRX=α mod TeDRX, where the H-SFN represents a hyper-frame number of the paging hyper-frame, the TeDRX represents the number of the hyper-frames corresponding to the idle mode extended DRX cycle, and the α represents a value specific to the user equipment.

公开(公告)号：US10750542B2

公开(公告)日：2020-08-18

申请号：US15807792

申请日：2017-11-09

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Kugo Morita ,  Hiroyuki Adachi ,  Noriyoshi Fukuta

IPC: H04W74/08 ,  H04W72/12 ,  H04W76/10 ,  H04W74/00

Abstract: A radio terminal according to an embodiment includes a controller configured to control a random access procedure. The random access procedure includes first processing of transmitting a random access preamble to a base station, second processing of receiving a random access response from the base station, and third processing of performing uplink transmission to the base station based on the random access response. The controller is configured to notify, in the first processing or the third processing, the base station of an amount of uplink data in a transmission buffer of the radio terminal.

公开(公告)号：US10555193B2

公开(公告)日：2020-02-04

申请号：US15660533

申请日：2017-07-26

Applicant: KYOCERA CORPORATION

Inventor： Naohisa Matsumoto ,  Kugo Morita ,  Hiroyuki Adachi ,  Hiroyuki Urabayashi ,  Chiharu Yamazaki

IPC: H04W28/08 ,  H04W16/14 ,  H04W24/10 ,  H04W36/00 ,  H04W24/08

Abstract: A user terminal according to a first feature is used in a mobile communication system. The use terminal includes: a receiver configured to receive a measurement instruction to instruct measurement in an unlicensed band, from a base station; a controller configured to, in response to reception of the measurement instruction, search for a radio signal transmitted in a frequency channel included in the unlicensed band, and measure reception power of the radio signal detected by the search, even when a cell identifier of a measurement target cell is not designated in the measurement instruction; and a transmitter configured to transmit a measurement report including an identifier of a transmission source of the detected radio signal and a measurement result of the reception power, to the base station.

公开(公告)号：US10477434B2

公开(公告)日：2019-11-12

申请号：US15881840

申请日：2018-01-29

Applicant: KYOCERA CORPORATION

Inventor： Yushi Nagasaka ,  Masato Fujishiro ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W48/18 ,  H04W28/08 ,  H04W36/22 ,  H04W28/02 ,  H04W92/02

Abstract: A radio terminal according to an embodiment comprises: a controller configured to control traffic steering between an Evolved-Universal Terrestrial Radio Access Network (E-UTRAN) and a Wireless Local Area Network (WLAN). The controller is configured to control traffic steering from the E-UTRAN to the WLAN or from the WLAN to the E-UTRAN according to at least one of a first scheme and a second scheme. The radio terminal further comprises a receiver configured to receive, from the E-UTRAN, first assistance information to be used to determine whether the radio terminal executes the traffic steering in the first scheme. The first assistance information is broadcasted by the E-UTRAN. The receiver is configured to receive, from the E-UTRAN, WLAN configuration information including a list of identifiers of the WLAN and a timer value indicating a period over which the WLAN configuration information should be held.

公开(公告)号：US10433221B2

公开(公告)日：2019-10-01

申请号：US15748123

申请日：2016-07-29

Applicant: KYOCERA CORPORATION

Inventor： Yushi Nagasaka ,  Masato Fujishiro ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W36/00 ,  H04W24/10 ,  H04W36/14 ,  H04W48/18 ,  H04W88/06 ,  H04W76/27 ,  H04W84/12

Abstract: A base station according to one embodiment is configured to perform communication with a radio terminal and a wireless wide area network (WWAN) system. The base station comprises a controller configured to transmit first configuration information with which the radio terminal configures a measurement report in the radio terminal. The measurement report is a report of a measurement result about a signal transmitted by a wireless local area network (WLAN) system from an access point. The first configuration information includes a predetermined identifier associated with a group of access points to be measured by the radio terminal. The predetermined identifier is associated with an identifier of each of the access points in the group. The group is a group in which the radio terminal is capable of steering among access points without being dependent on a command from the base station.

公开(公告)号：US10433150B2

公开(公告)日：2019-10-01

申请号：US15727872

申请日：2017-10-09

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi

IPC: H04W8/00 ,  H04W72/14 ,  H04W92/18 ,  H04W76/14 ,  H04W48/16 ,  H04W72/04 ,  H04W92/16

Abstract: A communication method including transmitting, from a radio terminal connected to a cell to a base station managing the cell operated in a first frequency, a first message that a discovery signal is transmitted for public safety in a second frequency; receiving, by the base station, the first message; and transmitting, from the base station to the radio terminal, a second message including information on radio resources to be used in transmission of the discovery signal in the second frequency, based on the first message. The method further includes transmitting, from the base station to the radio terminal, first information and second information. The first information indicates a threshold value for determining whether or not the radio terminal transmits the first message. The radio terminal uses the second information to determine whether or not the radio terminal is allowed to transmit the first message.

公开(公告)号：US10390207B2

公开(公告)日：2019-08-20

申请号：US15564223

申请日：2016-04-07

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi

IPC: H04W8/00 ,  H04W72/02 ,  H04W92/18 ,  H04W72/04 ,  H04L29/12

Abstract: A user terminal is used in a mobile communication system configured to support Device to Device (D2D) communication that is direct device-to-device communication. The user terminal comprises a controller. The controller is configured to, if determining to execute a D2D discovery procedure targeted to a user terminal out of a cell coverage, execute the D2D discovery procedure by using a D2D data resource in a pre-configured resource pool for D2D communication. The controller is configured to execute, upon executing the D2D discovery procedure, a process of transmitting identification information indicating that data carried by the D2D data resource is used for the D2D discovery procedure.

公开(公告)号：US10382988B2

公开(公告)日：2019-08-13

申请号：US15566245

申请日：2016-04-11

Applicant: KYOCERA CORPORATION

Inventor： Yushi Nagasaka ,  Noriyoshi Fukuta ,  Hiroyuki Adachi

IPC: H04W24/08 ,  H04L12/26 ,  H04W16/32 ,  H04W36/12 ,  H04W72/04 ,  H04W76/10 ,  H04W36/00 ,  H04W36/08

Abstract: A communication device according to an embodiment comprises: a controller configured to perform radio communication with another communication device in a mobile communication system to which an MDT function is applied. The controller obtains an MDT measurement result obtained by measuring a parameter in the radio communication. The parameter is a parameter affected by a latency reduction function. The controller adds, to the MDT measurement result, identification information on whether or not the latency reduction function is applied, depending on whether or not the latency reduction function is applied to the radio communication.

公开(公告)号：US10313886B2

公开(公告)日：2019-06-04

申请号：US15127505

申请日：2015-03-20

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Hiroyuki Adachi ,  Chiharu Yamazaki ,  Fangwei Tong ,  Kugo Morita

IPC: H04W4/70 ,  H04W8/00 ,  H04W16/02 ,  H04W16/04 ,  H04W48/16 ,  H04W72/04 ,  H04W76/14 ,  H04W92/18 ,  H04W92/20

Abstract: A communication control method according to a present embodiment comprises: a step of transmitting, by a first base station, to a third base station that is a neighboring base station of the first base station, a first resource message relating to a first D2D resource used for the D2D proximity service in the first base station. The first resource message includes information on the first D2D resource and a second D2D resource used for the D2D proximity service in a second base station that is a neighboring base station of the first base station.

公开(公告)号：US10244572B2

公开(公告)日：2019-03-26

申请号：US15502061

申请日：2015-08-06

Applicant: KYOCERA CORPORATION

Inventor： Naohisa Matsumoto ,  Kugo Morita ,  Hiroyuki Adachi

IPC: H04W4/00 ,  H04W76/14 ,  H04L5/00 ,  H04W8/00 ,  H04W48/08 ,  H04W8/24 ,  H04W56/00 ,  H04W72/04 ,  H04W88/04

Abstract: A communication control method according to the present invention is used in a mobile communication system that supports D2D communication that is direct Device-to-Device communication. The communication control method comprises a step of transmitting, by a first user terminal in a cell coverage, to another user terminal, identification information for identifying that the first user terminal is located in a cell.