公开(公告)号：US20180042063A1

公开(公告)日：2018-02-08

申请号：US15789358

申请日：2017-10-20

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Takahiro SAIWAI ,  Kugo MORITA

IPC: H04W76/02 ,  H04W72/04 ,  H04W8/00

CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W72/04 ,  H04W72/0453

Abstract: A radio base station, user terminal, and apparatus in a mobile communication system including a plurality of cells corresponding to a plurality of frequency bands are configured to either transmit or receive a system information block indicating radio resources. The radio resources are used by a user terminal to transmit and/or receive a direct discovery signal for discovering another user terminal in proximity of the user terminal. The system information block includes information indicating a cycle of time resources reserved as the radio resources, information indicating one or more frequency bands selected from the plurality of frequency bands, and information indicating one or more resource blocks reserved as the radio resources in the one or more frequency bands. The radio base station, user terminal, and apparatus further configured to either transmit or receive change notification information, relating to a change of the radio resources, separately from the system information block.

公开(公告)号：US20180014347A1

公开(公告)日：2018-01-11

申请号：US15693675

申请日：2017-09-01

Applicant: KYOCERA CORPORATION

Inventor： Yushi NAGASAKA ,  Masato FUJISHIRO ,  Kugo MORITA ,  Hiroyuki ADACHI ,  Fangwei TONG ,  Shingo KATAGIRI ,  Chiharu YAMAZAKI ,  Hiroyuki URABAYASHI ,  Naohisa MATSUMOTO ,  Katsuhiro MITSUI

IPC: H04W76/04 ,  H04W8/22 ,  H04W88/08

Abstract: A communication method according to an embodiment comprises: notifying, by a base station, a radio terminal of a discontinuous reception (DRX) cycle; notifying, by a Mobility Management Entity (MME), the radio terminal of an extended DRX cycle longer than the DRX cycle; determining, by the radio terminal, whether or not the base station supports an extend DRX; using, by the radio terminal, the extended DRX cycle to execute an extended DRX operation in an idle mode, in response to determining that the base station supports the extend DRX; and using, by the radio terminal, the DRX cycle to execute a DRX operation without using the extended DRX cycle, in response to determining that the base station does not support the extend DRX.

公开(公告)号：US20170353344A1

公开(公告)日：2017-12-07

申请号：US15682686

申请日：2017-08-22

Applicant: KYOCERA CORPORATION

Inventor： Fangwei TONG ,  Chiharu YAMAZAKI ,  Kugo MORITA ,  Masato FUJISHIRO

IPC: H04L27/34 ,  H04L5/06 ,  H04W4/06 ,  H04W28/04

CPC classification number: H04L27/34 ,  H04L5/06 ,  H04L27/0008 ,  H04L27/3488 ,  H04W4/06 ,  H04W28/04

Abstract: A base station 100 in a radio transmission system that performs multicast/broadcast transmission comprises a multiplexing unit 110 configured to multiplex a plurality of types of transmission data transmitted in schemes different in error tolerance; and a transmitter 120 configured to transmit multiplexed data obtained by the multiplexing unit 110, by multicast/broadcast. The plurality of types of transmission data includes basic transmission data transmitted, by the transmitter, in a scheme having a first error tolerance and additional transmission data transmitted, by the transmitter, in a scheme having a second error tolerance lower than the first error tolerance. The additional transmission data is utilized in a terminal 200 by being combined with the basic transmission data.

公开(公告)号：US20170339723A1

公开(公告)日：2017-11-23

申请号：US15663347

申请日：2017-07-28

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Hiroyuki ADACHI ,  Kugo MORITA

IPC: H04W76/00 ,  H04W76/04 ,  H04W76/02 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12

CPC classification number: H04W76/40 ,  H04W4/06 ,  H04W52/02 ,  H04W76/11 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12 ,  Y02D70/00 ,  Y02D70/24

Abstract: A base station supports SC-PTM. The base station sets a first configuration and a second configuration to the user terminal. The first configuration is a configuration on the user terminal discontinuously monitoring a PDCCH on which a control signal is transmitted, the control signal being for receiving multicast data transmitted by the SC-PTM from the base station. The first configuration includes an On-duration timer that is a period during which the user terminal receives the PDCCH. The first configuration is a configuration corresponding to a RNTI assigned commonly to a plurality of user terminals that receives identical multicast data by the SC-PTM. The second configuration is a configuration on the user terminal discontinuously monitoring a PDCCH on which a control signal is transmitted, the control signal being for receiving data transmitted by another transmission method from the base station.

公开(公告)号：US20170325277A1

公开(公告)日：2017-11-09

申请号：US15660555

申请日：2017-07-26

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Chiharu YAMAZAKI ,  Kugo MORITA ,  Henry CHANG

IPC: H04W76/02 ,  H04W48/12 ,  H04L29/06 ,  H04W8/00 ,  H04W72/04

CPC classification number: H04W76/15 ,  H04L1/0027 ,  H04L1/1861 ,  H04L29/06088 ,  H04L69/14 ,  H04L2001/0093 ,  H04W4/06 ,  H04W8/005 ,  H04W24/10 ,  H04W28/04 ,  H04W48/12 ,  H04W72/005 ,  H04W72/0453 ,  H04W76/14

Abstract: A user terminal includes: a receiver configured to receive multicast/broadcast data transmitted from a base station to a plurality of user terminals using the same downlink radio resources; a controller configured to select uplink radio resources to be used for transmission of feedback information, from a resource pool allocated from the base station to a group including the plurality of user terminals; and a transmitter configured to transmit the feedback information to the base station using the selected uplink radio resources.

公开(公告)号：US20170325115A1

公开(公告)日：2017-11-09

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: H04W24/08 ,  H04W24/10 ,  H04W16/14

CPC classification number: H04W24/08 ,  H04W16/14 ,  H04W24/10

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：US20170311347A1

公开(公告)日：2017-10-26

申请号：US15644661

申请日：2017-07-07

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Chiharu YAMAZAKI ,  Kugo MORITA ,  Yushi NAGASAKA ,  Fangwei TONG ,  Henry CHANG

IPC: H04W74/00 ,  H04W52/38 ,  H04W8/00

CPC classification number: H04W76/15 ,  H04B17/318 ,  H04L5/0062 ,  H04L47/40 ,  H04W4/80 ,  H04W8/005 ,  H04W48/08 ,  H04W52/383 ,  H04W68/12 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/0493 ,  H04W74/006 ,  H04W76/14 ,  H04W76/27 ,  H04W92/18

Abstract: A communication method comprises a communication apparatus managing a serving cell of a user terminal and broadcasting to the user terminal system information for Device to Device (D2D) proximity service using a frequency of the serving cell. The user terminal performing a discovery procedure to discover another user terminal on a basis of the system information, which includes first information that indicates an available frequency for the discovery procedure different from the frequency of the serving cell and related to a center frequency of a frequency band of the available frequency, second information that indicates at least one parameter for calculating transmission power for the discovery procedure, third information that indicates a Public Land Mobile Network (PLMN) identifier for the available frequency, and fourth information that indicates number of times of re-transmissions of a discovery signal to be re-transmitted by one user terminal in the discovery procedure.

公开(公告)号：US20170289950A1

公开(公告)日：2017-10-05

申请号：US15628825

申请日：2017-06-21

Applicant: KYOCERA CORPORATION

Inventor： Henry CHANG ,  Noriyoshi FUKUTA ,  Kugo MORITA

IPC: H04W64/00 ,  H04W48/16

CPC classification number: H04W64/003 ,  H04W24/02 ,  H04W48/16 ,  H04W84/042 ,  H04W84/12 ,  H04W88/06

Abstract: A communication control method includes a user terminal that supports a cellular communication and a WLAN communication comprises receiving a location measurement request message from a network apparatus via the cellular communication, where the location measurement request message includes a location request message for requesting location of the user terminal and a measurement request for requesting WLAN measurement, performing WLAN measurement on a WLAN access point, and transmitting a report message to the network apparatus via the cellular communication. The report message includes the location of the user terminal and WLAN measurement result of the WLAN access point, and the WLAN measurement result includes an identifier of the WLAN access point, signal strength of the WLAN access point and time information indicating time when the WLAN measurement are performed.

公开(公告)号：US20170289937A1

公开(公告)日：2017-10-05

申请号：US15511305

申请日：2015-09-16

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki URABAYASHI ,  Chiharu YAMAZAKI ,  Naohisa MATSUMOTO ,  Noriyoshi FUKUTA ,  Kugo MORITA ,  Masato FUJISHIRO

IPC: H04W56/00 ,  H04W16/14 ,  H04W74/08 ,  H04W48/16

CPC classification number: H04W56/001 ,  H04W16/14 ,  H04W48/16 ,  H04W56/00 ,  H04W56/0015 ,  H04W56/0025 ,  H04W72/04 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: A base station manages a first cell and a second cell and communicates with a user terminal by carrier aggregation which is applied to the first cell and the second cell, the first cell being allocated a licensed band requiring a license and a second cell being allocated an unlicensed band not requiring a license. The base station includes: a transmitter configured to transmit a synchronization signal used for synchronization between the second cell and the user terminal, by at least one carrier selected from the unlicensed band based on a result of carrier sensing in the second cell; and a controller configured to instruct the user terminal to perform a detection operation of the synchronization signal for all or part of the carrier through the first cell.

公开(公告)号：US20170195011A1

公开(公告)日：2017-07-06

申请号：US15467729

申请日：2017-03-23

Applicant: KYOCERA CORPORATION

Inventor： Kugo MORITA

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/024 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0697 ,  H04L5/0023 ,  H04L5/0035 ,  H04L25/03904 ,  H04W88/08

Abstract: A base station is connected to a first user terminal in a mobile communication system that performs spatial multiplexing transmission for the first user terminal and a second user terminal by applying a same radio resource and a same precoder matrix. The base station comprises: a control unit that notifies another base station connected to the second user terminal of a first statistic for each piece of first precoder matrix information fed back from the first user terminal and a second statistic for each downlink radio resource in the first user terminal.