Abstract:
A transmitting device can suppress degradation of the video quality and determine a proper transmission rate, and include a transmitting unit that transmits a communication packet to a receiving device, a receiving unit that receives a feedback packet, which is a response signal corresponding to the communication packet, from the receiving device, a detecting unit that detects a change of a reception interval of the feedback packet, and a transmission rate determining unit that decreases a transmission rate at which the transmitting unit transmits the communication packet in the case where the change of the reception interval is detected, and increases the transmission rate on the basis of an amount of change of a travelling speed of at least either the transmitting device or the receiving device before and after the decrease in the transmission rate.
Abstract:
A transmitting device can suppress degradation of the video quality and determine a proper transmission rate, and include a transmitting unit that transmits a communication packet to a receiving device, a receiving unit that receives a feedback packet, which is a response signal corresponding to the communication packet, from the receiving device, a detecting unit that detects a change of a reception interval of the feedback packet, and a transmission rate determining unit that decreases a transmission rate at which the transmitting unit transmits the communication packet in the case where the change of the reception interval is detected, and increases the transmission rate on the basis of an amount of change of a travelling speed of at least either the transmitting device or the receiving device before and after the decrease in the transmission rate.
Abstract:
A communication apparatus of the present invention is used in the network where data communication is performed, and includes: a priority data information holding section for holding, in advance, QoS setting information corresponding to domain names, which QoS setting information is necessary to perform QoS setting for data communicated in the network; a control packet snooping section for snooping on a DNS packet received from a DNS server, and obtaining a domain name contained in the DNS packet; and a priority control setting section for, when QoS setting information corresponding to the obtained domain name is contained in the QoS setting information held in the priority data information holding section, performing, based on the QoS setting information, QoS setting for data communication performed by a communication apparatus which is the transmission source of the DNS packet. Thus, the communication apparatus of the present invention can reduce processing load for QoS setting for an AV flow which is used in real time communication, and can detect even an AV flow for which an unpublished protocol or the like is used.
Abstract:
A communication apparatus used in a network where data communication is performed includes a priority data information holding section that holds, in advance, QoS setting information corresponding to domain names, where the QoS setting information is necessary to perform QoS settings for data communicated in the network. A control packet snooping section snoops on a DNS packet received from a DNS server, and obtains a domain name contained in the DNS packet. A priority control setting section, when QoS setting information corresponding to the obtained domain name is contained in the QoS setting information held in the priority data information holding section, performs, based on the QoS setting information, a QoS setting for data communication performed by a communication apparatus which is the transmission source of the DNS packet.