437 results about "Cell control" patented technology

A method for assisting in a handover is provided that includes utilizing a link between a centralized access controller (CAC) and customer premises equipment (CPE) to facilitate a communication session involving a mobile station. The method also includes rejecting a handover from a public network to a cell controlled by the CAC after recognizing, in advance, that sufficient resources are unavailable for supporting a channel to be employed for the handover.

The present invention provides a welding system and methodology to facilitate communications and control. The system includes a cell controller to control one or more welders over a control network. An interface module associated with the cell controller and the control network communicates with the welders and employs a communications protocol adapted to the interface module to facilitate communications and control between the cell controller and the one or more welders over the control network.

A method and system for performing cell load control in a mobile radio network using diversity connections between base stations is described, wherein the efficiency of the resource management in the radio network is improved by transmitting an external message containing a load information of a cell to a radio network controller not serving this cell. The transmission may be performed in response to a corresponding request transmitted by the radio network controller to another radio network controller which serves the corresponding radio cell. When the radio network controller has received the load information of the cell controlled by the other radio network controller, it may use the load information for deciding on a load status of the radio cell. Thereby, the resource management of radio network is more efficient and the load is maintained balanced among different cells, wherein a possible situation of cell congestion and high interference is avoided. Moreover, the active set management efficiency is improved, resulting in a higher connection quality, since the decision algorithm to change the active set is faster and more efficient.

A method for mitigating interference at a small base station in a hierarchical cell structure is provided. In the method, the small base station checks a sub-frame allocated to macro user equipment by using a downlink signal received from a macro base station when an interference candidate user equipment list is received. The interference candidate user equipment list contains information on the macro user equipment adjacent to a femto cell controlled by the small base station. Then the small base station allocates other sub-frame to femto user equipment located in the femto cell by avoiding the sub-frame allocated to the macro user equipment.

In a radio access network (14) comprising a serving radio network control node (26₁) and a drift radio network control node (26₂), a determination is first made that a target cell controlled by the drift radio network control node should be prepared for handover with respect to a user equipment unit (30). The target cell is neighbored by a set of neighboring cells, the set of neighboring cells including a first subset of neighboring cells and a second subset of neighboring cells, a handover involving the user equipment unit being permitted for a cell of the first subset but not for a cell of the second subset. In accordance with the determination, a message including a filtered list of cells is sent to the user equipment unit, the filtered list of cells including the first subset but not the second subset. The filtered list of cells can comprise, for example, a list of cells for whose frequencies the user equipment unit is to perform measurements. Which nodes perform the actions of (1) determining an allowed area(s) for the user equipment unit; and (2) preparing the filtered list of cells using the allowed area(s) depends on which of various alternative implementations are utilized.

A method and apparatus for resource allocation in a multi-carrier wireless communication system enables transmission using smaller resource units and achieves efficient transmission of data channels with very low data rates, scheduling a greater number of user equipments without additional control channel overhead while maintaining compatibility with the resource allocation scheme of legacy user equipments. Thus, one cell controls a larger number of user equipments. In addition, as multiple user equipments are scheduled using a single control channel, resource efficiency is increased.

A cell control device according to the present invention includes: a discharge circuit that discharges each unit cell selected by the first switches among a plurality of unit cells connected in series; a charging circuit that charges each unit cell selected by the second switches among the unit cells connected in series, and; a voltage detection unit that detects a voltage of each unit cell via voltage detection lines respectively connected to positive and negative electrodes of the unit cells; an oscillator that irradiates high frequency electromagnetic radiation upon the voltage detection lines; and a charging control unit that controls switching of the first switches, thereby performing discharge of the each unit cell, and a charging control unit that controls switching of the second switches, thereby performing charging of the unit cells, based on voltages of the unit cells that are detected by the voltage detection unit.

A switch fabric implemented on a chip includes an array of cells and an I/O interface in communication with the array of cells for permitting exchange of data packets between the array of cells and components external to the array of cells. Each cell communicates with at least one other cell of the array, permitting an exchange of data packets between the cells of the array and an exchange of control information between the cells of the array. Each cell is operative to control transmission of data packets to other cells of the array at least in part on a basis of the control information. The control information is thus used to regulate the flow of data packets between cells.

A voltage-controlled delay line (VCDL) comprises a series of delay cells outputting a clock output signal having a delay relative to a clock input signal input to the series of delay cells. A duty-cycle correction section corrects the duty cycle of the clock output signal by providing opposite current outputs which are fed back to the series of delay cells to substantially simultaneously charge and discharge current of the series of delay cells in opposite directions. A control current input to the series of delay cells controls the amount of the delay. A voltage-to-current converter converts a control voltage into the control current so that the delay changes substantially linearly as the control voltage changes. The method for using the VCDL to produce linear delay is also included. The VCDL can be used in a delay-locked loop (DLL).

The present invention provides a communication method, apparatus and system. The method comprises: a base station receives a wireless resource control RRC connection reestablishment request sent by user equipment UE, wherein the RRC connection reestablishment request is used for requesting the reestablishment to a first cell controlled by the base station; if the context of the UE is not stored in the base station, the base station obtains the context of the UE from a mobile management entity MME; the base station sends an RRC connection reestablishment setup message to the UE, and receives an RRC connection reestablishment completion message sent by the UE; and the base station sends a handover command to the MME. The present invention solves the problem that the success rate of RRC connection reestablishment by user equipment is low in the prior art.

A method of reducing co-channel interference in a cellular telecommunication system having a congested serving cell, a plurality of neighbor cells controlled by a mobile switching center (MSC), and an accessing mobile station attempting to access the cellular system in the serving cell. The MSC fetches signal strength information from mobile stations camped on the serving cell's digital control channel (DCCH). The signal strength information includes received signal strengths at the camped mobile stations from the serving cell and the neighbor cells. The MSC then fetches signal strength information from busy mobile stations involved in on-going calls in the serving cell. For each busy and camped mobile station, the expected downlink signal strength from each neighbor cell is subtracted from the maximum downlink signal strength from the serving cell. The mobile station/neighbor cell combination with the numerically least difference causes the least co-channel interference when the identified mobile station is moved into the identified neighbor cell. If the identified mobile station is the accessing mobile station, the MSC redirects the accessing mobile station to access the cellular system in the identified neighbor cell. If the identified mobile station is a busy mobile station involved in a call, the MSC forces a handoff of the identified mobile station to the identified neighbor cell.

A power saving method and apparatus for wireless optical mouse is disclosed, the apparatus comprising: a micro control unit (MCU), for controlling the operation of a sensor integrated circuit (IC) of an optical sensor of the wireless optical mouse; a wireless transceiver module, connected to the MCU, for transmitting/receiving electronic signals to/from a corresponding wireless interface of a computer; an oscillation frequency control circuit, for switching the operation frequency of the sensor IC so as to enable the same to be defined by a RC oscillation circuit of the sensor IC while the sensor IC being in a sleep mode, and switching the operation frequency of the sensor IC so as to enable the same to be defined by a crystal oscillation circuit; a light emitting diode (LED) control circuit, for controlling the activation of a LED and thus enabling the motion of the wireless optical mouse to be detected; a sensor cell control circuit, for enabling only one of a plurality sensor cells of a sensor cell array while the sensor IC being in the sleep mode, and enabling every sensor cell of the sensor cell array while the sensor IC being in a working mode; and a mode switch circuit, for controlling the mode the sensor IC to be switched between the sleep mode and the working mode according to the output of the sensor cell control circuit.

A photonic based non-invasive surgery system that includes an imaging device such as an MRI device and at least two beam generators for generating beams of energy for delivery to a target in the person's body, where the beams of energy intersect at a point. The system also includes a feed-forward control for precalculating anticipated deflections and resulting pathways as the beams of energy travel throughout the person's body, and a feedback control to obtain and use information gathered by the imaging device.

The invention provides a sample formed component analyzer automatic detection control apparatus which comprises at least a multichannel processing module which respectively connects with a master control computer through a communication interface. Each multichannel processing module comprises a flow counting cell containing a plurality of channels. Each channel of the flow counting cell comprises an independent input terminal and an independent output terminal. The input terminal connects with a sampling needle through a first input control valve, and the output terminal connects with a sample input pump through a second input control valve. The first input control valve, the second input control valve and the sample input pump are respectively connected with an output terminal of a pump valve control part, and an input terminal of the pump valve part connects with a counting cell control module. According to the control apparatus, through the master control computer, each multichannel processing module is started respectively, and each multichannel processing module is in independent parallel operation; each multichannel processing module starts each channel of the flow counting cell through the counting cell control module, and each channel is in time sharing parallel operation.

The invention discloses a method for realizing self optimization in a mobile communication system, a system and a base stations, wherein the method comprises the following steps that: (A) a first base station judges whether the current state of a cell controlled by the first base station needs to be switched into another state which is opposite to the current state or not, if yes, a cell state notification is sent to all base stations being adjacent to the first base station; the cell state notification carries a mark of the cell the state of which needs to be switched; and (B) the base stations which are adjacent to the first base station update the state corresponding to the cell mark carried by the cell state notification in a proximity relation list. By adopting the invention, the self optimization in the mobile communication system can be realized.

The present disclosure relates to a method for paging coverage extension UEs in a cell controlled by a radio base station. At least one CE-specific paging possibility is defined for paging CE-UEs. The CE-UEs in the cell regularly monitor the at least one CE-specific paging possibility. When the radio base station determines to page all the user equipments in the cell, it pages the CE user equipments in the cell at the CE-specific paging possibility, using a coverage extension technique. The disclosure also relates to a method for paging a CE-UE, which performs radio measurements by a CE-capable user equipment to determine whether coverage extension is necessary. The radio base station is informed about whether the CE-capable user equipment needs coverage extension and then pages the CE-UEs applying or not applying a CE technique depending on whether coverage extension is necessary.

A method and system for controlling a commercial transaction is presented. An article of manufacture has a time cell that is read by an electronic apparatus. In response to a determination of a state of the time cell by the electronic apparatus, usage of the article of manufacture in a commercial transaction is enabled or denied based on the determined state of the time cell. The expiration period of a time cell controls the time period during which the commercial transaction is enabled or is denied to be performed; an unexpired time cell may both enable or deny performance of a commercial transaction, and an expired time cell may also both enable or deny performance of a commercial transaction. The time cell may be used to restrict the usage period of a coupon, a promotional offer, a pre-paid service, or some other commercial transaction that involves an article of manufacture.

A semiconductor device has multiple memory cell groups arranged at intersections between multiple word lines and multiple bit lines intersecting the word lines. The memory cell groups each have first and second memory cells connected in series. Each of the first and the second memory cells has a select transistor and a resistive storage device connected in parallel. The gate electrode of the select transistor in the first memory cell is connected with a first gate line, and the gate electrode of the select transistor in the second memory cell is connected to a second gate line. A first circuit block for driving the word lines (word driver group WDBK) is arranged between a second circuit block for driving the first and second gate lines (phase-change-type chain cell control circuit PCCCTL) and multiple memory cell groups (memory cell array MA).

The embodiments of the invention disclose a double-cell mobile phone and a cell control method and system thereof. The double-cell mobile phone comprises a mobile phone body and a mobile phone back housing buckled with the mobile phone body. A non-detachable first cell is arranged in the mobile phone body. The mobile phone further comprises a detachable second cell and a cell control system. A controllable direct current conversion charging circuit is connected between the first cell and the second cell. The cell control system comprises a power supply control module used for switching the cell supplying power to the mobile phone from the first cell to the second cell when the second cell is detected; a charging control module used for switching on the direct current conversion charging circuit between the first cell and the second cell according to a preset strategy when no external charger is connected to the mobile phone body and enabling the second cell to charge the first cell. According to the invention, the sufficient electric quantity of the mobile phone is ensured in a mobile condition, and the problems of unbeautiful appearance and inconvenience caused by connection with a charger baby are avoided for a user.

A method for optimizing the management of radio resources in CDMA system is characterized by that the attribute information of the cell controlled by the controller of the base station connected currently with user is transmited via interface to the controller of the base station to which initial connection is created, and said information is classified and managed in optimized mode, resulting in high utilization rate of radio resources and high QoS.

The invention discloses a continuous feeding device for alumina. In the structure of the device, an upper structure of an electrolytic cell is provided with an upper alumina powder spray pipe lifting and pressing device to allow an alumina powder spray pipe to pass through electrolyte and alumina crust to be communicated with electrolyte; a pressure pump is used to pressurize the alumina powder; in a sealed delivery pipe, the pressure pump and a flow control valve are controlled by a command sent by a computer in a cell control cabinet of the electrolytic cell to adjust the pressure, volume and flow rate for delivering the alumina powder; and thus, the alumina powder can be continuously injected into the electrolyte from the delivery pipe and the spray pipe.