Transmission device, reception device, transmission method, reception method, and movable entity

A reception device comprising:

• a buffer manager configured to allocate, in a case where a packet containing both first data and second data is received, a first buffer to the packet;
• a packet processor configured to write the first data and the second data that are contained in the packet to the first buffer;
• a first reader configured to read the first data from the first buffer, and to output the first data to a first application;
• a writer configured to read, after the first data is read from the first buffer, the second data from the first buffer, and to write the second data to a reception buffer;
• and
• a second reader configured to read the second data from the reception buffer, and to output the second data to a second application different from the first application,
• wherein a time constraint for providing the first data to the first application is shorter than a time constraint for providing the second data to the second application, and
• the buffer manager releases the first buffer after the first data is read from the first buffer by the first reader and the second data is read from the first buffer by the writer.

A reception device comprising:

• a buffer manager configured to allocate, in a case where a packet containing both first data and second data is received, a first buffer to the first data, and to allocate a second buffer to the second data;
• a packet processor configured to write the first data to the first buffer, and to write the second data to the second buffer;
• a first reader configured to read the first data from the first buffer, and to output the first data to a first application;
• a writer configured to read the second data from the second buffer, and to write the second data to a reception buffer;
• and
• a second reader configured to read the second data from the reception buffer, and to output the second data to a second application different from the first application,
• wherein a time constraint for providing the first data to the first application is shorter than a time constraint for providing the second data to the second application, and
• the buffer manager releases the second buffer after the second data is read from the second buffer by the writer.

A transmission method comprising:

• reading, from a transmission buffer configured to store first data related to a first application, the first data, writing the first data that is read to a first memory region and holding the written first data in the first memory region until a transmission request of second data is generated;
• reading, in a case where the transmission request of the second data related to a second application different from the first application is generated after the first data is written to the first memory region, the first data in the first memory region, and generating a packet containing both the first data and the second data;
• and
• transmitting the packet.