Information transmission apparatus, traffic control apparatus, method of managing bandwidth resources using the same and method of admitting a call, using variable-rate-encoding

A traffic controller comprising:

• receiving means for receiving a notification traffic parameter from an information transmission apparatus for transmitting variable-rate-encoded data stored in a storage medium, the notification traffic parameter indicating a time series characteristic representing a change of a transmission rate corresponding to a continuation time of a traffic, wherein said information transmission apparatus is requesting to generate new traffic;
• means for allocating a transmission bandwidth resource for a variable-rate transmission designated by the time series characteristic to said information transmission apparatus on the basis of the time series characteristic;
• and
• means for executing a setting of a path to said information transmission apparatus and a determination of a call admission in parallel,
• wherein said determining means includes means for shifting transmission start time to be capable of admitting the call.

A method of admitting a call, comprising the steps of:

• notifying a traffic parameter from an information transmission apparatus containing a storage medium storing real time data, the traffic parameter indicating a time series characteristic representing a change of a transmission rate corresponding to a continuation time of a traffic;
• and
• adding the traffic parameter notified in each exchanger on a path to a traffic characteristic already admitted, to determine whether or not said traffic is admitted,
• wherein the step of adding the traffic parameter includes a step of determining whether or not said traffic is admitted in consideration of a change of the addition result due to a difference of a traffic start timing from said information transmission apparatus.

A method of admitting a call, comprising the steps of:

• notifying a traffic parameter from an information transmission apparatus containing a storage medium storing real time data, the traffic parameter indicating a time series characteristic representing a change of a transmission rate corresponding to a continuation time of a traffic;
• and
• adding the traffic parameter notified in each exchanger on a path to a traffic characteristic already admitted, to determine whether or not said traffic is admitted,
• wherein the step of adding the traffic parameter includes a step of determining whether or not said traffic is admitted in consideration of a transmission delay and a delay variation.

An information transmission apparatus comprising:

• a holding section which holds a time series characteristic representing a change of a transmission rate corresponding to a continuation time of a traffic every storage medium or every variable-rate-encoded data stored in the storage medium;
• a notifying section which once notifies, at a time of calling, a network of a notification traffic parameter indicating the time series characteristic to start a negotiation in accordance with the notification traffic parameter from a calling side;
• and
• a transmission starting section which starts a transmission upon reception of a notification of connection setting from said network;
• and
• a time series characteristic generating section which calculates an average reading rate for every predetermined time interval based on a read characteristic of variable-rate coding data read from said storage medium to generate a time series of the average reading rate as a time series characteristic.

A traffic controller comprising:

• a receiver section which receives a notification traffic parameter from an information transmission apparatus for transmitting variable-rate-encoded data stored in a storage medium, the notification traffic parameter indicating a time series characteristic representing a change of a transmission rate corresponding to a continuation time of a traffic, wherein said information transmission apparatus is requesting to generate a new traffic;
• a bandwidth allocating section which allocates a transmission bandwidth resource for a variable-rate transmission designated by a time series characteristic to said information transmission apparatus on the basis of the time series characteristic of a transmission rate notified thereby;
• and
• an admission determining section which executes a setting of a path to said information transmission apparatus and a determination of a call admission in parallel,
• wherein said admission determining section includes a shifting section configured to shift transmission start time to be capable of admitting the call.

An information transmission apparatus comprising:

• holding means for holding a time series characteristic of a transmission rate of variable-rate-encoding data every storage medium or every variable-encoding data stored in the storage medium;
• notifying means for once notifying a network of the time series characteristic, serving as a notification traffic parameter, which corresponds to variable-rate-encoding data to be transmitted, for executing a traffic control in accordance with a notification traffic parameter from a calling side;
• transmission starting means for starting a transmission upon reception of a notification of connection setting from said network;
• and
• time series characteristic generating means for calculating an average reading rate for every predetermined time interval based on a read characteristic of variable-rate-encoding data read from said storage medium to generate a time series of the average reading rate as a time series characteristic.

A traffic controller comprising:

• receiving means for receiving a notification traffic parameter from an information transmission apparatus for transmitting variable-rate-encoding data stored in a storage medium, wherein said information transmission apparatus is requesting to generate new traffic;
• means for allocating a transmission bandwidth resource for a variable-rate transmission designated by a time series characteristic to said Information transmission apparatus on the basis of the time series characteristic of a transmission rate notified thereby;
• and
• means for executing a setting of a path to said information transmission apparatus and a determination of a call admission in parallel, said means for executing including means for shifting transmission start time to be capable of admitting the call.

An information transmission apparatus comprising:

• a holding section which holds a time series characteristic of a transmission rate of variable-rate-encoding data every storage medium or every variable-encoding data stored in the storage medium;
• a notifying section which once notifies a network of the time series characteristic of the transmission rate, serving as a notification traffic parameter, which corresponds to variable-rate-encoding data to be transmitted, for executing a traffic control in accordance with a notification traffic parameter from a calling side;
• a transmission starting section which starts a transmission upon reception of a notification of connection setting from said network;
• and
• a time series characteristic generating section which calculates an average reading rate for every predetermined time interval based on a read characteristic of variable-rate-encoding data read from said storage medium to generate a time series of the average reading rate as a time series characteristic.

A traffic controller comprising:

• a receiver section which receives a notification traffic parameter from an information transmission apparatus for transmitting variable-rate-encoding data stored in a storage medium wherein said information transmission apparatus is requesting to generate a new traffic;
• a bandwidth allocating section which allocates a transmission bandwidth resource for a variable-rate transmission designated by a time series characteristic to said information transmission apparatus on the basis of the time series characteristic of a transmission rate notified thereby;
• and
• an admission determining section which executes a setting of a path to said information transmission apparatus and a determination of a call admission in parallel and includes a shifting section configured to shift transmission start time to be capable of admitting the call.