MOBILE COMMUNICATION METHOD, RADIO BASE STATION, AND MOBILE STATION

摘要

Occurrence of a delay in transmission of uplink data in “Inter-site CA” is avoided. A mobile communication method according to the present invention includes the steps of: causing a mobile station UE to transmit an SR to a radio base station eNB#1 by using a PUCCH-SR; causing the radio base station eNB#1 to notify the mobile station UE of a “UL grant”; causing the mobile station UE to transmit a BSR in a bearer #B/LCH#B to the radio base station eNB#1 by using a PUSCH designated in the “UL grant”; causing the radio base station eNB#1 to notify a radio base station eNB#10 of an amount of buffered data in the bearer #B/LCH#B; and causing the radio base station eNB#10 to assign the mobile station UE a resource for transmission of uplink data upon receipt of the amount of buffered data.

主权项

1. A mobile communication method in a mobile communication system in which a mobile station is configured to be capable of performing carrier aggregation via a first cell under a first radio base station and a second cell under a second radio base station, the mobile communication method including the steps of:
when a first logical channel is established between the mobile station and the first radio base station, a second logical channel is established between the mobile station and the second radio base station, a scheduling request transmission resource is assigned to the mobile station by the first radio base station, and uplink data to be transmitted in the second logical channel is generated in the mobile station, causing the mobile station to transmit a scheduling request to the first radio base station by using the scheduling request transmission resource; causing the first radio base station to notify the mobile station of a buffered-data-amount transmission resource; causing the mobile station to transmit an amount of buffered data in the second logical channel to the first radio base station by using the buffered-data-amount transmission resource; causing the first radio base station to notify the second radio base station of the amount of buffered data in the second logical channel; and causing the second radio base station to assign the mobile station a resource for transmission of the uplink data, upon receipt of the amount of buffered data.