299 results about "Signaling nodes" patented technology

Methods, systems, and computer program products for content-based screening of messaging service (MS) messages, such as short message service messages and multimedia message service messages, are disclosed. MS subscribers may provision specific message content screening rules via a web interface. Content-based MS screening functionality may be applied in the core of a communications network, such as at a network signaling node separate from a short message service center or a mobile terminal.

An integrated circuit has a current sense amplifier that includes a voltage comparator having a first input, a second input and an output; a first clamping device coupled between the first input of the voltage comparator and a first input signal node, a second clamping device coupled between the second input of the voltage comparator and a second input signal node, a current mirror having a first side and a second side, the current mirror first side including a first transistor coupled between a voltage source and the first clamping device and the current mirror second side including a second transistor coupled between the voltage source and the second clamping device, and a sensing scheme including an actively balanced capacitance coupled to the source and drain of the second transistor.

A high-speed current sense amplifier has complementary reference cells and load devices that eliminate capacitive mismatch contributions. The current sense amplifier includes a voltage comparator, a first clamping device coupled between a first input of the voltage comparator and a first input signal node. The first clamping device is coupled to a reference voltage. A second clamping device is coupled between the second input of the voltage comparator and a second input signal node. The second clamping device is also coupled to the reference voltage. A current mirror is coupled between the first and second input of the voltage comparator and is coupled to an active capacitance balancing circuit. The active capacitance balancing circuit may be combined with the voltage comparator. Equalization devices may be coupled between the first and second inputs of the voltage comparator, and between the first input signal node and the second input signal node.

A level shifter including input and output power nodes, input and output reference nodes, input and output signal nodes, and a lever shifter network. The input power and input reference nodes operate within a first power domain and the output power and output reference nodes operate within a second power domain. The level shifter network receives an input signal operable within the first power domain, performs voltage shifting between the input and output power nodes and between the input and output reference nodes, and provides an output signal output signal indicative of the input signal that operates within the second power domain. The level shifter may include power and / or ground bypass such that either one or both of power and ground voltage shifting may be bypassed for faster switching. The level shifter may include an isolation input to assert the output to a known level.

The invention relates to a network switching method and device, belongs to the technical field of radio communication, and aims at solving the problems that time for switching between UMTS and LTE is relatively long and signaling node of the network is increased in the prior art. A source radio network node sends a switching request message to a target radio network node directly after it is determined that enhanced switching can be carried out; and after receiving the switching request message, the target radio network node sends a switching command to a terminal. Due to the fact that the source radio network node can send the switching request message to the target radio network node directly, signaling interaction between core networks is reduced, time needed for a switching process is reduced, and the signaling load in the network is reduced.

A decoupling capacitor control circuit is configured to be coupled between supply voltage and reference voltage planes. The control circuit includes a decoupling capacitor having a first node configured to be coupled to the supply voltage plane and having a second node. A first switching element has a first signal node coupled to the second node of the decoupling capacitor and has a second signal node and a control node. A second switching element has a first signal node coupled to the first node of the decoupling capacitor and has a second signal node coupled to the control node of the first switching element, and has a control node. A biasing circuit is coupled to the control nodes of the first and second switching elements. The biasing circuit activates both switching elements when the decoupling capacitor is not defective and deactivates both switching elements when the decoupling capacitor is defective.

A system and method is provided for establishing a call to a wireless directory number (982) which is either a non-geographic directory number or a non-dialable directory number. A call is initiated from a wireline telephone (155) to a geographic-based local access directory number (994, 996). An originating switching node (810) recognizes the local access directory number (994, 996) as an AIN trigger, and thereafter identifies a signaling node (820) that is associated with the dialed local access DN (994, 996). The signaling node (820) sends a location request that includes the local access DN (994, 996) to an HLR (130). The HLR (130) obtains the wireless DN (982) from an internal database (990) in which the wireless DN (982) is associated with the local access DN (994, 996). The HLR (130) utilizes the wireless DN (982) to receive a temporary local directory number (TLDN) from visitor location register (140). The HLR (130) associates the TLDN with the local access DN (994, 996) and subsequently forwards the TLDN to the signaling node (820), which in turn relays the TLDN to the originating switching node (810). The call connection is thereafter established directly from the originating switching node in the end office to a visited cellular switch using the TLDN.