Abstract:
A transmitting apparatus (10, 20) includes a control unit (12, 22) configured to generate PDCP (Packet Data Convergence Protocol) data containing information indicating at least a part of a HFN (Hyper Frame Number) held in the transmitting apparatus, and a transmitting unit (11, 21) configured to transmit the PDCP data generated by the control unit to a receiving apparatus.
Abstract:
The present disclosure provides a radio station and a radio communication method capable of performing efficient control in Dual Connectivity. A radio station (10) includes: a classification unit (11) that classifies, when a data radio bearer is established with a communication terminal through a radio station (20), the data radio bearer into one of a plurality of groups based on a predetermined classification condition; and a transmission unit (12) that transmits, to the radio station (20), an establishment request message requesting establishment of the data radio bearer, and the group into which the data radio bearer is classified.
Abstract:
Provided is a handover originating base station which transmits data to a handover destination base station, for performing mobile communication terminal handover in a mobile communication system. The handover originating base station is provided with a means for transmitting data whose transmission is not confirmed by a communication terminal, with information which indicates data transmitted just before.