Redistribution of excess bandwidth in networks for optimized performance of voice and data sessions: methods, systems and program products

A method of redistributing excess bandwidth in a packet network upon the addition of a session, comprising:

• executing in a client station the steps of determining whether a session is being added to the network;
• determining if the session is at a preferred bandwidth;
• allocating preferred bandwidth to a Previously Presented session if excess bandwidth is available;
• negotiating bit rate for the Previously Presented session with the allocated bit bandwidth;
• Applying a Quality of Service (QoS) algorithm to all established voice sessions including the Previously Presented session if excess bandwidth is not available;
• and
• determining if all session bandwidth allocations are equal to or greater than their minimum bandwidth upon addition of a session.

A method for redistributing excess bandwidth in a packet network upon removal of a voice or data session, comprising the steps of:

• determining whether a session is being removed from the network bandwidth;
• determining if a Previously Presented session is being added when a time period “T” has not expired;
• determining if any encoded session is allocated with minimum bandwidth upon removal of a session;
• if none, applying a Quality of Service (QoS) algorithm to all data sessions with excess bandwidth and negotiate the bit rate for the sessions with bandwidth allocation changed;
• finding a voice session with the largest minimum bandwidth subscription;
• determining whether some excess bandwidth remains after a pending session started;
• allocating preferred bandwidth to voice sessions with minimum bandwidth;
• and
• determining if any excess bandwidth remains.

A program medium, executable in a computer system, for redistributing excess bandwidth in a packet network upon the addition of a session, comprising:

• program instruction determining whether a session is being added to the network;
• program instruction determining if the session is at a preferred bandwidth;
• program instruction allocating preferred bandwidth to a new session if excess bandwidth available;
• program instruction negotiating bit rate for the new session with the allocated bit bandwidth;
• program instruction applying a Quality of Service (QoS) algorithm to all established encoded sessions including the session, if excess bandwidth is not available;
• and
• program instruction determining if all session bandwidth allocations are equal to or greater than their minimum bandwidth upon addition of a session.

A medium, executable in a computer system, for redistributing excess bandwidth in a packet network upon removal of a session, comprising:

• program instructions determining whether a session is being removed from the network bandwidth;
• program instructions determining if a Previously Presented session is being added when a time period “T” has not expired;
• program instructions determining if any encoded session is allocated with minimum bandwidth upon removal of a session;
• program instructions applying a Quality of Service (QoS) algorithm to all data sessions with excess bandwidth and negotiate the bit rate for the sessions with bandwidth allocation changed;
• program instructions finding an encoded session with the largest minimum bandwidth subscription;
• program instructions determining whether some excess bandwidth remains after a pending session is started.
• program instructions allocating preferred bandwidth to encoded sessions with minimum bandwidth;
• and
• program instructions determining if any excess bandwidth remains.

A packet network redistributing excess bandwidth for optimized performance of voice and data sessions conducted on the network, comprising:

• plurality of client stations connected to the network for conducting voice and data sessions;
• each client station including at least one codec for conducting sessions at a selected minimum bandwidth or a preferred bandwidth;
• a Quality of Service (QoS) application executing in the client stations and controlling the redistribution of bandwidth when a new session is set up or an existing session is removed, so that every new session will have at least minimum bandwidth or, reallocating bandwidth to remaining sessions after a removal of a session to increase bandwidth for some sessions;
• and
• excess bandwidth detection apparatus for reallocating bandwidth when an existing voice or data session is removed based on ensuring that some excess bandwidth remains after a pending session is started.

A method of redistributing excess bandwidth in a packet network upon the addition of a session, comprising the steps of:

• determining whether a session is being added to the network;
• determining if the session is at a preferred bandwidth;
• allocating preferred bandwidth to a new session if excess bandwidth is available;
• negotiating bit rate for the new session with the allocated bit bandwidth;
• applying a Quality of Service (QoS) algorithm to all established voice sessions including the new session, if excess bandwidth is not available;
• and
• determining if all session bandwidth allocations are equal to or greater than their minimum bandwidth upon addition of a session;
• and
• allocating bandwidth when a new voice or data session is added based on ensuring that some excess bandwidth remains after a pending session is started.