摘要:
A relay apparatus for relaying communication between a plurality of wireless terminals and a wired network includes a priority data recording part for recording communication identification data and required bandwidth data, a priority control part for relaying, by priority, the communication recorded in the priority data recording part, a request receiving part for receiving communication identification data and multimedia type data, a selecting part for selecting a multimedia type to be relayed by priority, an updating part for additionally recording data that represents a bandwidth required for relaying a stream of the selected multimedia type and the communication identification data, and a responding part for transmitting a response. The selecting part selects the multimedia type so that a sum of bandwidths represented by the required bandwidth data does not exceed a predetermined upper limit value. With the above configuration, the relay apparatus can perform bandwidth control of communication to be relayed, considering the multimedia type included in the communication by a wireless terminal.
摘要:
In a network including a relay apparatus, a relay apparatus management part, a communication management server for controlling communication between communication terminals including a mobile communication terminal, and a messaging server, a communication support system that supports an establishment of connection between communication terminals includes a communication information acquiring part for, in a case where communication cannot be established between a mobile communication terminal and a partner-side terminal due to the congestion of communication, receiving terminal data thereof, a relay apparatus specifying part for specifying an alternative relay apparatus, and a message control part for causing a messaging server to perform processing of transmitting an inquiry message for inquiring about a possibility of movement to a coverage area of the alternative relay apparatus and processing of transmitting a content of a response message. The communication support system enables a rapid transition to a state in which communication between the mobile communication terminal and the partner-side terminal can be established, by allowing information to be exchanged between both the terminals, even in a case where the communication between the terminal and the relay apparatus is congested.
摘要:
A wireless communication system including a wireless relay station storing a priority table in which identifiers of the communications that are relayed with higher priority are registered, a wireless relay device relaying communications specified by the communication identifiers registered in the priority table with higher priority than other communications, a stream server receiving communication start requests from any of the wireless terminals and sends to the wireless relay station communication identifiers specifying the communications that are about to be started, and requests registration in the priority table, and a wireless relay station registering the communication identifiers whose registration has been requested in the priority table, such that a proportion S/U of a sum S of consumption bandwidths of the communications specified by communication identifiers registered in the priority table to the available bandwidth U of the wireless network does not exceed a predetermined upper limit.
摘要:
A wireless communication system including a wireless relay station storing a priority table in which identifiers of the communications that are relayed with higher priority are registered, a wireless relay device relaying communications specified by the communication identifiers registered in the priority table with higher priority than other communications, a stream server receiving communication start requests from any of the wireless terminals and sends to the wireless relay station communication identifiers specifying the communications that are about to be started, and requests registration in the priority table, and a wireless relay station registering the communication identifiers whose registration has been requested in the priority table, such that a proportion S/U of a sum S of consumption bandwidths of the communications specified by communication identifiers registered in the priority table to the available bandwidth U of the wireless network does not exceed a predetermined upper limit.
摘要:
A relay apparatus for relaying communication between a plurality of wireless terminals and a wired network includes a priority data recording part for recording communication identification data and required bandwidth data, a priority control part for relaying, by priority, the communication recorded in the priority data recording part, a request receiving part for receiving communication identification data and multimedia type data, a selecting part for selecting a multimedia type to be relayed by priority, an updating part for additionally recording data that represents a bandwidth required for relaying a stream of the selected multimedia type and the communication identification data, and a responding part for transmitting a response. The selecting part selects the multimedia type so that a sum of bandwidths represented by the required bandwidth data does not exceed a predetermined upper limit value. With the above configuration, the relay apparatus can perform bandwidth control of communication to be relayed, considering the multimedia type included in the communication by a wireless terminal.
摘要:
There are provided a communications method, a communications system, a relay apparatus, and a computer program in which the communication remains stable between a terminal unit such as a mobile IP telephone and the relay apparatus used as an access point in the streaming communication service such as IP telephone in a wireless LAN environment when the condition of communication is unfavorable. The relay apparatus (1) is arranged to, when a desired amount of data for the streaming service is transmitted to each of the terminal units (2) over a communication bandwidth assigned to the terminal unit (2) at a communication speed predetermined for the terminal unit (2), modify the communication speed to the lowest rate.
摘要:
A relay apparatus includes: a priority table for storing a higher priority transmission identifier and transmission condition data; a bandwidth management part for determining whether or not a received transmission identifier should be recorded in the priority table as a higher priority transmission identifier; a priority control part for relaying the transmission identified by the higher priority transmission identifier by priority; a monitoring part for monitoring a transmission condition of the wireless terminals and storing a value indicating a degree of degradation of the transmission condition as transmission condition data in the priority table; and a lower priority transmission identifying part for selecting a transmission with a higher degree of degradation of a transmission condition as a lower priority transmission in the case where a total bandwidth in use for transmissions indicated by the higher priority transmission identifiers exceeds a predetermined threshold value. The priority control part relays the transmissions other than the lower priority transmission, by priority compared with the lower priority transmission.
摘要:
The wireless communication system configured in this manner performs priority control of communication as follows: (a) A wireless relay station stores a priority table in which, from among the communications handled by the stream server, the identifiers of those communications that are relayed with higher priority are registered. (b) The wireless relay device relays communications specified by the communication identifiers registered in the priority table with higher priority than other communications. (c) The stream server receives communication start requests from any of the wireless terminals and sends to the wireless relay station communication identifiers specifying the communications that are about to be started, and requests registration in the priority table. (d) The wireless relay station registers the communication identifiers whose registration has been requested in the priority table, to an extent that a proportion S/U of a sum S of consumption bandwidths of the communications specified by communication identifiers registered in the priority table to the available bandwidth U of the wireless network does not exceed a predetermined upper limit. Thus, flexible priority control is performed, and the quality of prioritized communication can be ensured.
摘要:
A wireless communication system including a wireless relay station storing a priority table in which identifiers of the communications that are relayed with higher priority are registered, a wireless relay device relaying communications specified by the communication identifiers registered in the priority table with higher priority than other communications, a stream server receiving communication start requests from any of the wireless terminals and sends to the wireless relay station communication identifiers specifying the communications that are about to be started, and requests registration in the priority table, and a wireless relay station registering the communication identifiers whose registration has been requested in the priority table, such that a proportion S/U of a sum S of consumption bandwidths of the communications specified by communication identifiers registered in the priority table to the available bandwidth U of the wireless network does not exceed a predetermined upper limit.
摘要:
In a network including a relay apparatus, a relay apparatus management part, a communication management server for controlling communication between communication terminals including a mobile communication terminal, and a messaging server, a communication support system that supports an establishment of connection between communication terminals includes a communication information acquiring part for, in a case where communication cannot be established between a mobile communication terminal and a partner-side terminal due to the congestion of communication, receiving terminal data thereof, a relay apparatus specifying part for specifying an alternative relay apparatus, and a message control part for causing a messaging server to perform processing of transmitting an inquiry message for inquiring about a possibility of movement to a coverage area of the alternative relay apparatus and processing of transmitting a content of a response message. The communication support system enables a rapid transition to a state in which communication between the mobile communication terminal and the partner-side terminal can be established, by allowing information to be exchanged between both the terminals, even in a case where the communication between the terminal and the relay apparatus is congested.