Patent ID: 7158473
Filing Date: 2007-01-02
Classification: H04L,H04W

Abstract:
1. A transmitting/receiving apparatus for packetizing input continuous data, transmitting the packetized data to another apparatus on a communication network, and receiving a packet transmitted from another apparatus, and being for use with a management apparatus which assigns a bandwidth to each apparatus on the communication network in accordance with a reservation made by each apparatus, said transmitting/receiving apparatus comprising: a packet construction section for dividing the continuous data into a plurality of subpackets, and constructing a packet by concatenating the plurality of subpackets; a modulation transmission section for modulating the packet constructed by the packet construction section, and transmitting the modulated packet to a transmission destination apparatus on the communication network; a training session execution section for checking channel conditions, when a predetermined condition is satisfied, by communicating with the transmission destination apparatus, and performing a training session to change a modulation rule used in the modulation transmission section to a modulation rule that enables a packet to be successfully transmitted from the modulation transmission section to the transmission destination apparatus; a subpacket transmission confirmation section for confirming whether or not a subpacket included in the transmitted packet was transmitted successfully to the transmission destination apparatus, wherein if the modulation rule is changed by the training session execution section: a prebuffer for storing the continuous data that is input during execution of the training session by the training session execution section; and a wider bandwidth request section for sending a reservation to the management apparatus to set a bandwidth to a width that enables a transmission speed by the modulation transmission section that is faster than an input speed of the continuous data.