Kyocera Corporation

Shingo Katagiri

Masato Fujishiro

Kugo Morita

Yushi Nagasaka

Fangwei Tong

Chiharu Yamazaki

Hiroyuki Adachi

Hiroyuki Urabayashi

Naohisa Matsumoto

Katsuhiro Mitsui

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.

Communication method, radio terminal, and processor

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.

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.

Base station, apparatus and communication method for retransmitting paging message addressed to radio terminal

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.

Growing community of inventors

Yokohama, Japan

Shingo Katagiri