Emergency-information receiving method, mobile station, and radio base station
AssigneeNtt Docomo, Inc.
InventorsHiroaki Yamagishi, Mikio Iwamura
Life of this patent
Estimating the term…
Abstract
An emergency-information receiving method according to the present invention includes: starting, at mobile stations (UE), receiving scheduling-information-notification system information at a current modification period without waiting until a next modification period starts, when detecting a predetermined trigger; and receiving, at the mobile stations (UE), emergency-information-notification system information on the basis of scheduling information notified by the received scheduling-information-notification system information.
Claims12
An emergency-information receiving method in which a plurality of mobile stations receives emergency information in a mobile communication system in which a radio base station is configured to transmit a plurality of types of system information repeatedly within a modification period to the mobile stations via a broadcast channel, and to notify the mobile stations of a predetermined trigger via the broadcast channel regardless of the modification period, the method comprising the steps of:
- (A) starting, at the mobile stations, receiving scheduling-information-notification system information at a current modification period without waiting until a next modification period starts, when detecting the predetermined trigger;
- and
- (B) receiving, at the mobile stations, emergency-information-notification system information on the basis of scheduling information notified by the received scheduling-information-notification system information.
A mobile station configured to receive emergency information in a mobile communication system in which a radio base station is configured to transmit a plurality of types of system information repeatedly within a modification period to a plurality of mobile stations via a broadcast channel, and to notify the mobile stations of a predetermined trigger via the broadcast channel regardless of the modification period, the mobile station comprising:
- a scheduling-information-notification system information receiver unit configured to start receiving scheduling-information-notification system information at a current modification period without waiting until a next modification period starts, when detecting the predetermined trigger;
- and
- an emergency-information-notification system information receiver unit configured to receive emergency-information-notification system information on the basis of scheduling information notified by the received scheduling-information-notification system information.
A radio base station configured to transmit emergency information in a mobile communication system in which the radio base station is configured to transmit a plurality of types of system information repeatedly within a modification period to a plurality of mobile stations via a broadcast channel, and to notify the mobile stations of a predetermined trigger via the broadcast channel regardless of the modification period, the radio base station comprising:
- a scheduling-information-notification system information transmitter unit configured to notify, to the plurality of mobile stations, a predetermined trigger, and to start transmitting, to the plurality of mobile stations, scheduling-information-notification system information for notifying scheduling information which specifies a downlink resource for transmitting emergency-information-notification system information at a current modification period without waiting until a next modification period starts, when generation of the emergency information is detected;
- and
- an emergency-information-notification system information transmitter unit configured to transmit emergency-information-notification system information by using the downlink resource specified by the scheduling information.
Dependencies are inferred from the claim text.