Patent ID: 8170058
Filing Date: 2012-05-01
Classification: H04L

Abstract:
1. A communications device having layers including at least an upper layer and a lower layer which layers are connected to each other at communication from a transmitting-end device transmitting a data frame and transmitting a connect frame for the data frame before transmitting the data frame, transmission of each of the data frame and the connect frame being made in a corresponding communications mode indicating a communications condition, the communications condition for the data frame and the communications condition for the connect frame are different from each other, the data frame containing user data, the connect frame containing a setting for connection of the layers for data communications of the data frame from the transmitting-end device, the setting being an instruction of establishment of connection of the layers, containing connection parameters presenting transmission conditions for the data frame, and not containing user data, the communication device comprising: an incoming frame processing section for standing by for reception in a communications mode for the data frame before start of communication with the transmitting-end device and for receiving the data frame from the transmitting-end device and for output to the upper layer; and a connect command generation section for generating a connect command for output to the upper layer so as to establish connection of the layers if the incoming frame processing section has received the data frame in a state where the communications device has not received the connect frame and has not started communication with the transmitting-end device.