WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND TRANSMISSION METHOD

1 . A wireless communication device comprising:

a controller configured to:

configure an entity that processes data to be transmitted by a radio bearer;

configure a plurality of communication channels with different communication configurations for requirements of the data;

select one communication channel from the communication channels in accordance with a state of the data; and

control data communication with a counterpart wireless communication device.

2 . The wireless communication device according to claim 1 , wherein the controller is further configured to:

configure a first entity performing a process of a first protocol for the data to be transmitted by the radio bearer;

configure a second entity performing a process of a second protocol for the data; and

configure a third entity performing a process of a third protocol for the data, the communication channels with different communication configurations being associated with the third entity, wherein

the second entity selects the communication channel with the communication configuration relevant to the state of the data and notifies the selected communication channel to the third entity, and

the third entity assigns the data to the communication channel notified from the second entity.

3 . The wireless communication device according to claim 2 , wherein the second entity selects the communication channel in accordance with a time at which the data arrives at the second entity and a delay time allowed for the data.

4 . The wireless communication device according to claim 2 , wherein the second entity selects the communication channel in accordance with a number of times of transmissions of the data.

5 . The wireless communication device according to claim 2 , wherein the first protocol is a service data adaptation protocol (SDAP).

6 . The wireless communication device according to claim 2 , wherein the second protocol is a packet data convergence protocol (PDCP).

7 . The wireless communication device according to claim 2 , wherein the third protocol is a radio link control (RLC).

8 . The wireless communication device according to claim 2 , wherein

the controller is further configured to configure a fourth entity performing a process of a fourth protocol for the data, and

the fourth entity configures retransmission of the data in accordance with the communication channel to which the data is assigned.

9 . The wireless communication device according to claim 1 , further including a wireless transmitter that transmits the data to the counterpart wireless communication device, wherein

the wireless transmitter transmits the data using a carrier wave in a frequency band relevant to the communication channel to which the data is assigned.

10 . A wireless communication device comprising:

a controller configured to:

configure an entity that processes data to be transmitted by a radio bearer,

configure a plurality of communication channels with different communication configurations for requirements of the data,

select one communication channel from the communication channels in accordance with a state of the data, and

control data communication with a counterpart wireless communication device, in accordance with a control of the counterpart wireless communication device.

11 . A wireless communication system comprising:

a first wireless communication device; and

a second wireless communication device that is a counterpart of the first wireless communication device, wherein

the first wireless communication device includes a controller configured to,

configure an entity that processes data to be transmitted by a radio bearer,

configure a plurality of communication channels with different communication configurations for requirements of the data,

select one communication channel from the communication channels in accordance with a state of the data, and

control data communication with the second wireless communication device.

12 . A transmission method to be performed by a wireless communication device, the method comprising:

configuring an entity that performs a process of a predetermined protocol on data to be transmitted by a radio bearer;

configuring a plurality of communication channels that are associated with the entity and have different communication configurations for requirements of the data;

selecting one communication channel from the communication channels in accordance with a state of the data; and

controlling data communication with a counterpart wireless communication device using the selected communication channel.