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805 results about "Handoff control" patented technology

Seamless Handoff Across Heterogeneous Access Networks Using a Handoff Controller in a Service Control Point

In a telecommunications network in which a mobile handset is capable of communicating in both an IP domain and a non-IP domain, the handoff of an existing communications session between the mobile handset and a fixed user is facilitated by a handoff controller implemented in a service control point. The handoff controller implements different handoff methods depending on the status of the fixed user and the transition of the mobile user. Additionally 802.21 Media Independent Handover Function in conjunction with SIP is used to facilitate handover between IP and Non-IP points in the system.
Owner:NYTELL SOFTWARE LLC

Versatile system for high-power switching controller in low-power semiconductor technology

The present invention provides a versatile system for providing a current-mode switching controller—in low voltage commercial semiconductor technologies—that is compatible with applications having very high input voltage ranges. The system provides an output transistor and a sense element coupled to the output transistor. A waveform representative of current charging across the sense element is recognized. First and second charging elements are provided, and the second charging element is adapted to charge at a rate twice as fast as the first charging element. First and second switching elements, coupled to the first and second charging elements, respectively, are adapted to activate the first and second charging elements responsive to a rising edge of the waveform. An output charge element is provided, and a sample and hold construct is adapted to transfer a charge value—to the output charge element—that corresponds to an average of the charge values of the first and second charging elements upon a falling edge of the waveform.
Owner:NAT SEMICON CORP

Radio-frequency module, transceiver and method for switching control of transceiver

ActiveCN101572939AAdapt to various application scenariosPower managementSpatial transmit diversityHandoff controlTransceiver
The embodiment of the invention discloses a radio-frequency module, a transceiver and a method for switching control of the transceiver. The radio-frequency module comprises a first receiving amplification branch, a first receiving frequency mixer, a second receiving frequency mixer, a frequency mixing switching module and a control module, wherein the first receiving amplification branch is connected with the first receiving frequency mixer; the frequency of a local oscillation signal adopted by the first receiving frequency mixer is more than, less than or equal to that of a local oscillation signal adopted by the second receiving frequency mixer; and the control module is used for controlling the frequency mixing switching module to establish a connection between the first receiving amplification branch and the second frequency receiving mixer, or controlling the frequency mixing switching module to switch off the connection between the first receiving amplification branch and the second receiving frequency mixer. In the technical proposal provided by the embodiment of the invention, the radio-frequency module of the transceiver adopts an expandable framework, can expand the framework and switch working modes as required, and can adapt to various application scenes.
Owner:SHANGHAI HUAWEI TECH CO LTD

Handover signaling assistance

The present invention relates to base stations, methods in a base station, terminals and methods in a terminal for supporting a handover. The invention further relates to computer programs for implementing, in the respective nodes of a wireless network, functionality for supporting a handover. According to one embodiment, a method in a source base station for supporting a handover of a terminal from the source base station to a target base station is provided. The method includes sending to an assisting base station a request for assisting the handover, and communicating handover control information between the terminal and the source base station via the assisting base station.
Owner:TELEFON AB LM ERICSSON (PUBL)

Handoff control method and mobile station

First, the strength A of a first pilot signal currently transmitted by a base station and strength B of a second pilot signal transmitted by a base station other than the foregoing base station are measured, the correction value D of a handoff threshold value according to the multicast service availability and radio configuration information of the multicast content is obtained, and handoff threshold value C is obtained, as well. Next, if the difference between the strength B of the second pilot signal and the strength A of the first pilot signal is greater than the sum of the handoff threshold value C and the correction value D, the idle handoff is started. Through this, idle handoff to neighbor base stations delivering the same multicast content is facilitated and idle handoff to other base stations is made difficult.
Owner:LENOVO INNOVATIONS LTD HONG KONG

Communication device and handover method

A communication device can perform handover in accordance with a traffic type. In a non-real time communication, it is possible to prevent loss of packet data. In a real time communication, a handover can be rapidly performed without causing a delay. In this device, a handover control unit (105) judges whether data type information is data in a real time communication. If the data is in a real time communication, the handover control unit (105) outputs a switching request message for switching the path switch to the local station to an IPAG interface unit (104). An L3 packet buffer management unit (106) temporarily accumulates the data transmitted from the IPAG or data transferred from other network host.
Owner:PANASONIC CORP

USB controller with intelligent transmission mode switching function and the operating method thereof

There is provided a USB controller with an intelligent transmission mode switching function and the operating method thereof. The USB controller includes a host controller, a device controller, a data line set, and a monitor unit, wherein the data line set includes a D+ data line and a D− data line which are manipulated by the monitor unit to selectively couple to the host controller and a device controller. By way of the switching manipulation provided by the monitor unit, the transmission mode of the USB controller can be periodically switched between the host mode and the device mode, so that the transmission mode of the USB controller can be detected and settled readily in order to conduct data communication with other devices.
Owner:VIA TECH INC
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