公开(公告)号：US11317465B2

公开(公告)日：2022-04-26

申请号：US16997788

申请日：2020-08-19

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: H04W76/28 ,  H04W8/22 ,  H04W52/02 ,  H04W88/08 ,  H04W24/02

Abstract: A user equipment, method used in user equipment, and apparatus for controlling a user equipment operate to receiving a connected mode DRX parameter configured by a base station, and transmit to the base station a message including information indicating a connected mode DRX parameter preferred by the user equipment. The connected mode DRX parameter preferred by the user equipment includes at least one of DRX-InactivityTimer, DRX-ShortCycle, and DRX-ShortCycleTimer.

公开(公告)号：US20170367044A1

公开(公告)日：2017-12-21

申请号：US15691583

申请日：2017-08-30

Applicant: Kyocera Corporation

Inventor： Masato Fujishiro ,  Shingo Katagiri ,  Hiroyuki Adachi ,  Kugo Morita

IPC: H04W52/02 ,  H04W4/14 ,  H04W4/00 ,  H04W76/04 ,  H04W68/02 ,  H04W88/16 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W52/0209 ,  H04W4/14 ,  H04W4/70 ,  H04W28/14 ,  H04W52/0216 ,  H04W68/005 ,  H04W68/02 ,  H04W76/27 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/24

Abstract: A base station according to the present embodiment receives, if the radio terminal is in a connected mode, via a bearer between the base station and a serving gateway, downlink data addressed to the radio terminal, from the serving gateway, and includes a controller configured to transmit the downlink data to the radio terminal. The controller does not release but maintains the bearer, if the extended DRX operation is configured to the radio terminal, when the radio terminal transitions to the idle mode. The controller receives, even if the radio terminal is in the idle mode, from the serving gateway, the downlink data addressed to the radio terminal, via the bearer, and buffers the downlink data until the downlink data is transmitted to the radio terminal.

公开(公告)号：US10779354B2

公开(公告)日：2020-09-15

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: H04W76/28 ,  H04W8/22 ,  H04W52/02 ,  H04W88/08 ,  H04W24/02

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：US10531386B2

公开(公告)日：2020-01-07

申请号：US15693652

申请日：2017-09-01

Applicant: KYOCERA CORPORATION

Inventor： Yushi Nagasaka ,  Shingo Katagiri ,  Masato Fujishiro ,  Kugo Morita ,  Fangwei Tong

IPC: H04W52/02 ,  H04W68/02 ,  H04W68/00 ,  H04W72/04 ,  H04W76/28

Abstract: A base station according to one embodiment comprises a transmitter configured to transmit a downlink control channel for a radio terminal to receive, in an idle mode, a paging message; and a controller configured to retransmit a paging message addressed to the radio terminal, if an extended DRX using a second DRX cycle longer than a first DRX cycle is configured to the radio terminal.

公开(公告)号：US09749987B2

公开(公告)日：2017-08-29

申请号：US15191655

申请日：2016-06-24

Applicant: KYOCERA CORPORATION

Inventor： Shingo Katagiri

IPC: H04W4/14 ,  H04W68/00 ,  H04W52/02 ,  H04W68/02 ,  H04W76/04

CPC classification number: H04W68/005 ,  H04W52/0216 ,  H04W52/0219 ,  H04W68/025 ,  H04W76/28 ,  Y02D70/1224 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/24

Abstract: A mobile communication method comprises allocating, by the radio base station, the respectively different paging cycles, to a plurality of radio terminals that are present in an area covered by the radio base station.