摘要:
The invention is directed to techniques for reducing power consumption by an optical network transmitter (ONT) in a passive optical network (PON). The techniques may be particularly useful in extending the period of battery powered telephone service during a power outage. In particular, the invention provides a hibernation mode in which power is supplied only to a watchdog circuit while the ONT powers down the optical transmitter, the optical receiver, processing circuitry, data circuitry, video circuitry, and telephone circuitry to conserve power. The watchdog circuit wakes up a subset of the deactivated circuitry at service-critical events in order to service such events, but video and data processing circuitry remain deactivated.
摘要:
Techniques are described for managing traffic flow to an optical network terminal (ONT) on a passive optical network (PON) to prevent an individual ONT from being overrun. Specifically, the techniques involve reducing a transmission rate of a unique traffic flow and selectively denying access to a common traffic flow. By reducing the transmission rate of the unique traffic flow, sufficient bandwidth may be released to receive the unique traffic flow and the common traffic flow without overflowing the ONT. For example, the ONT or, alternatively, the OLT may send the requested common traffic flow without reducing the transmission rate of the unique traffic flow when sufficient bandwidth is available, send the common traffic flow but reduce the transmission rate of unique traffic flow by an appropriate amount, or deny access to the common traffic flow altogether without reducing the transmission rate of the unique traffic flow.
摘要:
Accelerated heating of automotive exhaust system components is effected by controlling the application of supplemental electrical loads to the vehicle electrical system thereby increasing engine load and increasing exhaust heat. Alternative strategies are disclosed for implementing the invention through control of electrical and engine management system parameters.
摘要:
A method of operating a home-based network device, wherein said home-based network device is part of a telecommunications network. The method comprising the steps of: assigning an address to the home-based network device, wherein said address is a function of a public identity of a subscriber associated with said home-based network device. The method further comprising registering the address of said home-based network device in an addressing space containing addressing information of other home-based network devices and providing access to said home-based network device to users that are not associated with said home-based network device.
摘要:
A method for controlling regeneration of a lean NOx trap includes estimating an accumulated NOx in the lean NOx trap; determining whether the estimated NOx exceeds a first threshold value or a second threshold value; estimating the temperature of the lean NOx trap; determining whether the estimated temperature exceeds a threshold temperature; determining a desired air-fuel ratio for initiating a regeneration event, the desired air-fuel ratio being determined based upon the estimated NOx and the estimated temperature of the lean NOx trap; hastening the occurrence of a regeneration event when the estimated NOx exceeds the first threshold value through active control of engine operating regimes; and initiating a regeneration event when the estimated NOx exceeds the second threshold value or when the estimated temperature exceeds the threshold temperature by forcing homogenous operation of the engine at the desired air-fuel ratio.
摘要:
A method of operating a home-based network device, wherein said home-based network device is part of a telecommunications network. The method comprising the steps of: assigning an address to the home-based network device, wherein said address is a function of a public identity of a subscriber associated with said home-based network device. The method further comprising registering the address of said home-based network device in an addressing space containing addressing information of other home-based network devices and providing access said home-based network device to users that are not associated with said home-based network device.
摘要:
In general, techniques are described for efficient management of ring networks with a system of two network devices. The first network device of the ring network is designated as an adjacent selective forwarding (ASF) device, and the second network device is designated as a master device. The master device monitors the ring network to determine whether a fault has occurred in the ring network and transmits via a secondary port of the master device a network status message to the ASF device based on the determination of whether the fault has occurred. The ASF device determines a status of the ring network based on the network status message and selectively forwards data traffic to the master network device based on the determination of the status. As a result, the master device more efficiently utilizes network resources by not consuming processor or memory resources to prevent traffic loops.
摘要:
An infrastructure (136, 138, 140, 142) for a delivery of content items such as SMS messages (134) or MMS messages in a mobile communications network (100) is proposed, wherein these primary content items are augmented by secondary content items, e.g. advertisements (150). A method embodiment related to the proposed network infrastructure is performed in a content provisioning server (138) and comprises the steps of receiving (S6) a content indicator (146) indicative of content of the first content item; determining (S7) a second content item based on the content indicator; and transmitting (S8) the second content item towards a user terminal (132), wherein a transmission path (S8, S9) of the second content item in the mobile communications network is at least in part separate from a transmission path (S3) of the first content item.
摘要:
The present invention relates to a method for network management comprising configuration of control protocols between network elements in a network represented through a current, static, network element object model comprising a number of managed objects with attributes and instances and representing resources. It comprises the steps of: transforming the current network element object model to a machine readable and executable formal network element object model; identifying configuration tasks needed for the configuration of the relevant control protocols; modelling a formal configuration task model using information about the configuration tasks and the formal network element object model; building a formal configuration workflow model using the formal network element object model and the formal configuration task model, said formal configuration workflow model defining the relationships between different configuration tasks required for performing or completing a number of given actions or to achieve a number of given goals.
摘要:
Techniques are described for managing traffic flow to an optical network terminal (ONT) on a passive optical network (PON) to prevent an individual ONT from being overrun. Specifically, the techniques involve reducing a transmission rate of a unique traffic flow and selectively denying access to a common traffic flow. By reducing the transmission rate of the unique traffic flow, sufficient bandwidth may be released to receive the unique traffic flow and the common traffic flow without overflowing the ONT. For example, the ONT or, alternatively, the OLT may send the requested common traffic flow without reducing the transmission rate of the unique traffic flow when sufficient bandwidth is available, send the common traffic flow but reduce the transmission rate of unique traffic flow by an appropriate amount, or deny access to the common traffic flow altogether without reducing the transmission rate of the unique traffic flow.