Abstract: Various exemplary embodiments relate to a session management node. A session management node may include: a receiver configured to receive an accounting message; a session information storage that includes a record of accumulated network usage of the subscriber; a session manager configured to determine a Quality of Service (QoS) for the subscriber based upon the subscriber's accumulated network usage and an update time; and a transmitter configured to send an authorization message to the NAS. A session management node may also include: a configurable NAS profile; a usage reporter; a policy engine; and a reauthorization scheduler. Various exemplary embodiments may relate to a method of authorizing QoS based on subscriber usage and current time period. The method may include: receiving an accounting message; monitoring the usage of the subscriber; authorizing a QoS; and transmitting an authorization message. Subscriber network usage may be associated with a monitoring key and/or rating factor.

Abstract: Various exemplary embodiments relate to a session management node. A session management node may include: a receiver that receives an accounting message indicating network usage of a subscriber, the message including at least one field; a NAS profile that maps the accounting message to a type of usage based on the field; a session information storage that includes a record of accumulated network usage for the type of usage; and a usage reporter that updates the subscriber's accumulated network usage. Various exemplary embodiments relate to a method of measuring network usage of a subscriber. The method may include: receiving an accounting message; determining a type of usage; and monitoring the subscriber's usage according to the type of usage. In various exemplary embodiments, various messages including vendor specific fields may be mapped to the same type of usage. A rating factor for monitoring may be assigned to a type of usage.

Abstract: A method and system is disclosed for controlling cooling unit operational settings according to power dissipation levels in sub-equipment. The method and system includes an adaptive cooling controller which uses system configuration information to associate a particular cooling unit with particular sub-equipment, and further uses configuration information to associate cooling unit activity with respective sensors. At a given cooling unit setting, the adaptive cooling controller determines from sensor readings in the associated sub-equipment whether a cooling unit setting change is required according to the configuration information for the sub-equipment. The sensor readings may include both temperature and power dissipation readings. The method and system is particularly useful for overcoming the difficulty with accommodating sub-equipment changes of cooling unit controllers known in the art.

Abstract: Various exemplary embodiments relate to a light transmission device for transmitting light from at least one light source to an illuminated surface. The device may include at least one light entrance surface that allows entrance of light from the at least one light source; a light emitting surface with an area greater than the total area of the at least one light entrance surface; at least one light pipe portion extending from the at least one light entrance surface toward the illuminated surface wherein the light pipe portion internally reflects the light toward the illuminated surface; and a flared diffusion portion between the at least one light pipe portion and the light emitting surface wherein the diffusion portion internally reflects the light towards the light emitting surface. The device may be a solid piece of plastic. The light pipe portions may be curved to bend light toward the illuminated surface.