Communication control method
A communication control method according to an embodiment is a communication control method for controlling communication of a user terminal. The communication control method comprises: transmitting, by a cellular base station, data of a predetermined layer, via a WLAN access point to the user terminal; and transmitting, by the user terminal, delivery acknowledgement information based on the received data, via the WLAN access point to the cellular base station.
1. A communication control method, comprising:
controlling, by a cellular base station, communication with a user terminal by use of a first data bearer and a second data bearer, the first data bearer not passing through a Wireless Local Area Network (WLAN) but passing through the cellular base station, and the second data bearer passing the WLAN and the cellular base station;
transmitting, by the user terminal, a status report indicating a delivery status regarding data received via the WLAN and data directly received from the cellular base station, to the cellular base station; and
receiving, by the cellular base station, the status report from the user terminal, wherein
the status report includes information on a sequence number of first missing Packet Data Convergence Protocol Service Data Unit (PDCP SDU).
2. The communication control method according to claim 1 , wherein
the status report further includes information indicating whether or not a PDCP SDU after the first missing PDCP SDU is already received.
3. The communication control method according to claim 1 , comprising
reordering, by the user terminal, a PDCP packet received as data in a PDCP entity.
4. The communication control method according to claim 1 , comprising:
transmitting, by the cellular base station, information to transmit the status report, to the user terminal; and
transmitting, by the user terminal, the status report based on the information transmitted from the cellular base station, to the cellular base station.
5. A user terminal comprising:
a processor; and
a memory communicatively coupled to the processor, wherein
the processor is configured to:
control communication with a cellular base station by use of a first data bearer and a second data bearer, the first data bearer not passing through a Wireless Local Area Network (WLAN) but passing through the cellular base station, and the second data bearer passing the WLAN and the cellular base station; and
transmit a status report indicating a delivery status regarding data received via the WLAN and data directly received from the cellular base station, to the cellular base station, and
the status report includes information on a sequence number of first missing Packet Data Convergence Protocol Service Data Unit (PDCP SDU).
6. A processor for controlling a user terminal, the processor communicatively coupled to a memory and configured to:
control communication with a cellular base station by use of a first data bearer and a second data bearer, the first data bearer not passing through a Wireless Local Area Network (WLAN) but passing through the cellular base station, and the second data bearer passing the WLAN and the cellular base station; and
transmit a status report indicating a delivery status regarding data received via the WLAN and data directly received from the cellular base station, to the cellular base station, and
the status report includes information on a sequence number of first missing Packet Data Convergence Protocol Service Data Unit (PDCP SDU).