Reception cycle control method, radio base station, and mobile station
AssigneeNtt Docomo, Inc.
InventorsAtsushi Harada, Anil Umesh
Life of this patent
Estimating the term…
Abstract
A radio base station (eNB) starts a transmitting-side timer upon transmission of downlink data; and changes a reception cycle of downlink data in a mobile station (UE), when transmitting no downlink data during a period from start to expiration of the transmitting-side timer. The mobile station (UE) starts a receiving-side timer upon receipt of downlink data transmitted; and changes a reception cycle of downlink data in the mobile station (UE), when receiving no downlink data during a period from start to expiration of the receiving-side timer.
Claims9
A reception cycle control method in which a mobile station and a radio base station control a reception cycle of downlink data in the mobile station for downlink data to be transmitted from the radio base station to the mobile station, comprising the steps of:
- (A) starting, at the radio base station, a transmitting-side timer upon transmission of downlink data to the mobile station;
- (B) changing, at the radio base station, a reception cycle of downlink data in the mobile station, when transmitting no downlink data during a period from start to expiration of the transmitting-side timer;
- (C) starting, at the mobile station, a receiving-side timer upon receipt of downlink data transmitted from the radio base station, the receiving-side timer set to expire later than the transmitting-side timer expires;
- and
- (D) changing, at the mobile station, a reception cycle of downlink data in the mobile station, when receiving no downlink data during a period from start to expiration of the receiving-side timer.
A radio base station used in a mobile communication system in which a mobile station is configured to start a receiving-side timer upon receipt of downlink data transmitted from a radio base station, and to change a reception cycle of downlink data in the mobile station when receiving no downlink data during a period from start to expiration of the receiving-side timer, the radio base station comprising:
- a transmitting-side timer manager unit configured to start a transmitting-side timer upon transmission of downlink data to the mobile station, the transmitting-side timer set to expire earlier than the receiving-side timer provided in the mobile station expires;
- and
- a reception cycle controller unit configured to change the reception cycle of the downlink data in the mobile station, when no downlink data is transmitted during a period from start to expiration of the transmitting-side timer.
A mobile station used in a mobile communication system in which a radio base station is configured to start a transmitting-side timer upon transmission of downlink data to the mobile station, and to change a reception cycle of downlink data in the mobile station when transmitting no downlink data during a period from start to expiration of the transmitting-side timer, comprising:
- a receiving-side timer manager unit configured to start a receiving-side timer set to expire later than the transmitting-side timer provided in the radio base station, upon receipt of downlink data transmitted from the radio base station;
- and
- a reception cycle controller unit configured to change the reception cycle of the downlink data in the mobile station, when no downlink data is received during a period from start to expiration of the receiving-side timer.
Dependencies are inferred from the claim text.