摘要:
The disclosure provides a method for realizing a Mobile Switch Center (MSC) pool, a system for realizing an MSC pool and a Media Gateway (MGW). The method for realizing an MSC pool includes: connecting with a Base Station Controllers (BSC)/Radio Network Controller (RNC), by a Media Gateway (MGW) through the use of a common signaling point; and upon receipt of a message whose destination signaling point is the common signaling point from the BSC/RNC, determining, by the MGW, a destination MSC server of the message according to ID information carried in the message, and sending the received message to the destination MSC server. According to the present invention, the networking scheme for an MSC pool may be implemented without upgrading any BSC/RNC. The flexibility of the networking scheme for mobile communication systems may be improved, and the traffic load of the subscribers may be shared.
摘要:
A method for establishing a bearer for a GSM network is disclosed in embodiments of the present invention. The method includes: receiving, by a Media Gateway, a message for adding a wireless side end point, assigning an IP address and a port number for a call and transmitting a response message containing the IP address and the port number assigned for the call; acquiring, by the Media Gateway, the IP address and the port number assigned for the call by the Base Station Controller via the Mobile Switching Center Server and establishing an IP bearer with the Base Station Controller. A device and a system for establishing a bearer for a GSM network are also disclosed in embodiments of the present invention. With the present invention, a full or part path transcoder-free operation may be realized, which can avoid quality reduction and transmission delay.
摘要:
A method for establishing a bearer for a GSM network is disclosed in embodiments of the present invention. The method includes: receiving, by a Media Gateway, a message for adding a wireless side end point, assigning an IP address and a port number for a call and transmitting a response message containing the IP address and the port number assigned for the call; acquiring, by the Media Gateway, the IP address and the port number assigned for the call by the Base Station Controller via the Mobile Switching Center Server and establishing an IP bearer with the Base Station Controller. A device and a system for establishing a bearer for a GSM network are also disclosed in embodiments of the present invention. With the present invention, a full or part path transcoder-free operation may be realized, which can avoid quality reduction and transmission delay.
摘要:
An improved decoder for recovering Non-Return-to-Zero Interface (NRZI) digital data from a multiple layer transition (MLT-3) encoded signal in a 100BASE-TX Ethernet (IEEE Standard 802.3u) uses multiple comparators to minimize jitter in the decoded signal. A CMOS-based biasing circuit receives the differential MLT-3 encoded input signals and control signals from a signal amplitude detection circuit. The biasing circuit adjusts for any DC offset, and also generates offset signals based on respective mid-peak voltage values of the respective differential input signals. Four comparators are then used to detect a prescribed edge transition (e.g., a positive edge) coinciding with the respective mid-peak voltage value in the respective signals. The detected edge transitions are then used by edge decoding logic to generate the NRZI bilevel signal.
摘要:
In a method for managing a facility that is to receive resources from a first resource supply, a supply of resources available from the first resource supply is predicted for a predetermined period of time. In addition, a demand for resources in the facility during the predetermined period of time is predicted. A capacity schedule for the facility is planned to meet a predefined operational goal, in which the plan of the capacity schedule uses as inputs, the predicted supply of resources available from the first resource supply and the predicted demand for resources in the facility during the predetermined period of time. Moreover, a determination as to whether the planned capacity schedule meets the predefined operational goal is made.
摘要:
A class of quinazoline derivatives or pharmaceutically acceptable salts or solvates thereof with novel structures is provided; meanwhile, a pharmaceutical composition comprising a pharmaceutically effective amount of said quinazoline derivatives or pharmaceutically acceptable salts or solvates thereof, and pharmaceutically acceptable excipients or additives is also provided. By modifying and transforming the quinazoline and screening of the transformed compounds on the activity of tyrosine kinase inhibition, most of the compounds have been found to possess inhibitory activity against one or several of EGFR, VEGFR-2, c-erbB-2, c-erbB-4, c-met, tie-2, PDGFR, c-src, lck, Zap70 and fyn kinases. The present invention has the advantages of reasonable design, broad source of and easy access to the raw materials, simple and easy operation of the preparation methods, mild reaction conditions, high yield of the products and being beneficial for industrial-scale production.
摘要:
In a method for generating a capacity schedule for a facility to meet a predefined operational goal, in which the facility is to receive resources from a first resource supply, a prediction of a supply of resources available from the first resource supply for a predetermined period of time is accessed. In addition, a prediction of a demand for resources in the facility during the predetermined period of time is accessed. The prediction of the supply of resources and the prediction of the demand for resources are inputted into a constrained optimization problem and the capacity schedule for the facility is generated by finding a solution to the constrained optimization problem.
摘要:
The present aspect relates to a convenient disposal machine for human excrement. The disposal machine for human excrement includes: a excretion pool, a sewage bucket and a controller. The bottom of the excretion pool is connected with a blow-off pipe, and the other end of the blow-off pipe is connected with the opening of the sewage bucket, the top of the sewage bucket is connected with the air inlet of the compressor via a fitting pipe, and the air outlet of the compressor is connected with an air cleaner.
摘要:
The invention discloses a method for implementing dual-homing, including: setting each one of any two core control equipment as a standby for each other, connecting a network entity belonging to one of the core control equipment with the two core control equipment through a primary link and a standby link respectively; setting the primary link connected with the core control equipment as activated, and setting the standby link connected with the core control equipment inactive; determining whether the core control equipment corresponding to the primary link is out of service, if the core control equipment corresponding to the primary link is out of service, activating the standby link; otherwise, continuously determining whether the core control equipment corresponding to the primary link is out of service. The invention also discloses another method for implementing dual-homing, by which the reliability of the network can be improved.
摘要:
A cable length estimation circuit for receiving an input MLT-3 signal provided through an arbitrary length cable and providing a control signal to an equalizer indicating the estimated length of the cable enabling the equalizer to compensate for distortion of the MLT-3 signal resulting from the cable. The cable length estimation circuit includes an edge rate detection circuit for measuring the rate of change in voltage with respect to time during transitions of the MLT-3 signal to provide an indication of cable length. The cable length estimation circuit can also include a digital averaging circuit which provides an average value for signals from the edge rate detection circuit for a desired number of transitions of the MLT-3 signal. The cable length estimation can also include a baseline wander detection circuit which functions so that previous cable length estimations are provided when baseline wander is detected.