| 摘要 |
Time for establishing a U-plane can be reduced and wasting a physical downlink control channel (PDCCH) is avoided in "RRC Re-establishment procedure." " A mobile communication method of the invention includes transmitting, by a mobile station UE, "RRC connection re-establishment request" to a radio base station eNB in response to "RA response, " and transmitting, by the radio base station eNB, "RRC connection re-establishment" , which instructs to establish DRB together with SRB1/SRB2, to the mobile station UE in response to the "RRC connection re-establishment request." |
