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69results about How to "Maintain communication quality" patented technology
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Monitoring and control module
InactiveUS20040258226A1Improve communication qualityLow costInterconnection arrangementsSupervisory/monitoring/testing arrangementsTelecommunications linkCommand and control
A method and apparatus for monitoring and controlling one or more aspects of one or more communication devices. In one embodiment the communication device is configured to transmit and receive packets of data via a packet-switched network. In one configuration the monitoring and controlling is performed by a command and control system (C / C system) that is configured to operate in conjunction with a communication device. In one configuration the communication device comprises an Interface device configured to Interface a voice communication network with a packet switched network. The C / C system may be configured to monitor or control aspects of the communication device including temperature, cooling device operation, security, drive operation, power supply output and power supply routing, system re-boots, or any other aspect of device operation. In one configuration the C / C system Interfaces with a remote location via a communication link, such as a packet switched network. Monitoring and control of various systems can be achieved from the remote location.
Owner:TIERRA TELECOM
Communication device and control method therefor
ActiveUS20100311327A1Stable operationMaintaining communication qualityCo-operative working arrangementsNear-field systems using receiversElectric power transmissionCommunication quality
The object of the invention is to achieve stable operation of a communication device which includes an information transmission means and a power transmission means while maintaining communication quality. A mobile device of the invention has an information transmission means for executing non-contact transmission, a power transmission means, a first control means for controlling the information transmission means to repeat an active period and a sleep period, and a second control means for controlling the power transmission means to transmit a power during the sleep period.
Owner:CANON KK
Setting of network allocation vectors in a wireless communication system
ActiveUS20100074198A1Maintain communication qualityMultiplex communicationNetwork topologiesCompletion timeCommunications system
Owner:SONY CORP
Radio lan antenna
InactiveUS20070004363A1Improve communication distanceReduce the possibilityAntenna adaptation in movable bodiesNetwork topologiesConductive materialsLayered structure
A high-frequency micro-strip line for transmitting a high-frequency wave for a wireless LAN system has a layered structure where, on a ground layer made of a conductive material, a dielectric layer made of a dielectric material and a signal line made of a conductive material are successively laid. The high-frequency micro-strip line further includes a patch antenna comprising a dielectric plate made of a dielectric material and a patch made of a conductive material, which are successively laid into a layered structure, the patch antenna being electrically connected to the signal line. A wireless-communication RF signal transmission device capable of being applied to such a line is also provided.
Owner:KOBE STEEL LTD
Optical transmission apparatus and method of controlling the same
InactiveUS20080080865A1Maintain communication qualitySuppress gain variationWavelength-division multiplex systemsElectromagnetic network arrangementsInformation controlCommunication quality
The present invention relates to an optical transmission apparatus capable of suppressing a transitional gain variation when a number of signal wavelengths changes, and maintaining communication quality in optical signals. The optical transmission apparatus is provided with an optical power control device that varies light power of light for each wavelength component corresponding to a wavelength channel, the light including signal light and spontaneous emission light; a wavelength arrangement information obtaining unit that obtains arrangement information of the wavelength channel of the signal light; and a control unit that controls the power control device based on the arrangement information obtained at the wavelength arrangement information obtaining unit so that light power of a wavelength component of the signal light and light power of a wavelength component other than the wavelength component of the signal light become substantially equal.
Owner:FUJITSU LTD
Handover control equipment, radio resource management equipment, network resource management equipment, mobile communication system, and handover control method
InactiveUS20050272428A1Maintain qualityMaintain communication qualityRadio/inductive link selection arrangementsTransmissionNetwork resource managementCommunication quality
Owner:NTT DOCOMO INC
Base station and mobile communication method
InactiveUS20090318182A1Improve receiver sensitivityMaintain communication qualityPower managementRadio transmissionElectrical and Electronics engineeringBase station
A femto base station according to the present invention includes: a downlink perch channel signal transmission power controller unit configured to change a transmission power of a downlink perch channel signal when a first condition is satisfied; and an uplink reception sensitivity controller unit configured to change an uplink reception sensitivity when a second condition is satisfied after the first condition is satisfied.
Owner:NTT DOCOMO INC
Base station and transmission power control method
InactiveUS20070010269A1Maintain communication qualityAddressing slow performancePower managementCode division multiplexCommunication qualityPriority setting
A base station of the present invention performs transmission power control quickly with maintaining communication quality in mobile communications systems, by setting up priority about transmission power control and performing transmission power control sequentially from a channel with a high priority. A channel priority setting unit outputs priority information indicating priority for transmission power control about a plurality of channel information. A power calculation unit outputs total power information of all channels about the plurality of channel information. A power adjustment unit performs power adjustment to the channel information selected on the basis of the priority information when the total power information has larger value than maximum transmission power information.
Owner:NEC CORP
Quality Control for Inter-Cell Handover
InactiveUS20120115487A1Reduce communication qualityQuality improvementWireless communicationQuality controlMass parameter
A method and apparatus for deciding whether the handover has to be done or not, where the decision is taken by the mobile unit. The mobile unit can reject the command from the base station if the quality of the communication might not be maintained in the second network. This decision is taken measuring some quality parameters of the second network and comparing them with a predefined threshold.
Owner:ST ERICSSON SA
Electronic device and control method thereof
ActiveUS20120062424A1Maintain communication qualityReduce the required powerPower managementTransmission systemsControl signalSignal processing
An electronic device including a first antenna, a second antenna, a first sensor, a signal processing module and an antenna control module is provided. The first antenna has a function of transmitting a wireless signal and is disposed on a first side of the electronic device. The second antenna is disposed on a second side of the electronic device. The first sensor detects whether a first object is around the first antenna and generates a first sensing signal according to a detecting result. The signal processing module generates a first control signal according to the first sensing signal. The antenna control module switches the function of transmitting the wireless signal from the first antenna to the second antenna.
Owner:COMPAL ELECTRONICS INC
Wireless network device including a polarization and spatial diversity antenna system
ActiveUS20100182206A1High uncorrelationEasy to usePolarisation/directional diversityAntenna supports/mountingsLength waveRadio frequency
A wireless access gateway for communication of wave signals at radio frequencies within a frequency band, includes an access gateway enclosed in a housing including a bottom wall and a main circuit board overlying the bottom wall and having an upper surface substantially parallel to the bottom wall. The gateway is equipped with an antenna system including at least two antennas: a first linearly polarized antenna for propagating a first wave signal along a first polarization axis including a first radiating element extending along a first longitudinal axis lying on a first plane substantially parallel to the base plane, and a second linearly polarized antenna for propagating a second wave signal along a second polarization axis oriented perpendicularly to the first polarization axis, the second antenna including a second radiating element extending along a second longitudinal axis lying on a second plane oriented perpendicularly to the first plane. The first and second antennas are positioned relative to each other at a distance of at least λ / 2, where λ is the wavelength corresponding to a radio frequency within the frequency band.
Owner:ADVANCED DIGITAL BROADCAST
Advanced packet transfer with integrated channel monitoring
InactiveUS6907000B1Improve communication qualityLow costError preventionTransmission systemsThe InternetTelephone network
A method and apparatus for transmitting packets of data over a packet-switched network and for monitoring the transmission characteristics associated with the transmission is disclosed. In one configuration the method and apparatus is configured to interface with a telephone network, such as the public switched telephone network. In such a configuration, two or more interface devices located at different locations connect to a computer network, such as the Internet and to a telephone network. The interface devices receive information from the telephone and manipulate this information and transmits it over a computer network to another interface device. Also included is monitoring and routing software located on any of the interface devices or a separate monitoring and routing system. The monitoring and routing software is in communication with each interface device to obtain information regarding the communication characteristics between each of the one or more interface devices. If the communication characteristics are undesirable, the monitoring and routing software may communicate with the one or more interface devices to achieve a change in routing of the information over the computer network.
Owner:FUSION NETWORK CALIFORNIA
Base station and mobile communication method
InactiveCN101610571AMaintain communication qualityPower managementPower controllerCommunication quality
The invention provides a base station and a mobile communication method. A macro mobile device adjacent to a femto base station could maintain the communication quality in a femto cell even communicating with the macro base station. The femto base station according to the present invention includes: a downlink perch channel signal transmission power controller unit configured to change a transmission power of a downlink perch channel signal when a first condition is satisfied; and an uplink reception sensitivity controller unit configured to change an uplink reception sensitivity when a second condition is satisfied after the first condition is satisfied.
Owner:NTT DOCOMO INC
Transmission power control method and apparatus
InactiveUS20090082056A1Achieve traceabilityMaintain communication qualityPower managementTime-division multiplexControl dataTransmitter
In a transmission power control method, a receiver receives user data transmitted intermittently from a transmitter to a receiver and control data transmitted continuously from the transmitter to a plurality of receivers including the receiver via a DPDCH and a CPICH, respectively; and generates, when the receiver is receiving the user data from the transmitter via the DPDCH, a command for controlling transmission power of the transmitter of a DPDCH in a manner that an SIR of a received signal of the DPDCH by the receiver becomes equal to a target SIR, and generates, when the receiver is not receiving the user data from the transmitter via the DPDCH, a command for controlling the transmission power of the transmitter of the DPDCH by updating the target SIR by using received quality of the CPICH.
Owner:NTT DOCOMO INC
Radio information terminal, radio communication system, and communicating method and program for use in the radio information terminal
InactiveUS20020039886A1Increase the number ofMaintain communication qualitySpatial transmit diversityTransmission noise suppressionCommunication qualityCommunications system
The object of the present invention is to provide a radio communication system and a mobile station for the system that increase the number of mobile stations that can connect to the same frequency resource while maintaining communication quality. In order to achieve the stated object, the mobile station is notified of unique word information, which is different for each mobile station, from a radio base station through the control channel, stores the information in a UW information storage unit, modulates a synchronization code which includes the information into a reference signal through a re-modulation signal, and stores the result in a memory. When transmission and reception are performed on a link channel, a weight calculation unit forms directivity in the direction of the radio base station using the reference signal. By performing directivity control in the mobile station, interference signals radiated to other wireless zones are reduced while interference signals from other wireless zones are eliminated, therefore the space between re-use of frequencies can be shortened, and the number of mobile stations that can be accommodated in the same frequency resource can be increased.
Owner:HERA WIRELESS
Optical transmission apparatus and method of controlling the same
InactiveUS7813642B2Maintain communication qualitySuppress gain variationWavelength-division multiplex systemsElectromagnetic network arrangementsCommunication qualityOptical power
Owner:FUJITSU LTD
Wireless base station and wireless communication method
InactiveUS20110306371A1Stable communicationMaintain communication qualityRadio transmissionTransmission noise suppressionElectrical and Electronics engineeringBase station
A reception quality information obtaining unit obtains reception quality information indicating reception quality of each of a plurality of antennas at predetermined intervals. A reception quality variation trend recognition unit recognizes a variation trend of a value in relation to reception quality of each of the antennas obtained. A correlation determination unit determines a degree of correlation between the antennas based on the variation trend of the value in relation to the reception quality of each of the antennas recognized. An antenna selection unit selects at least two antennas to be used for wireless communication, based on the degree of correlation between the antennas determined by the correlation determination unit .
Owner:KYOCERA CORP
Wireless communication method
InactiveUS20120294200A1Improve transfer throughputMaintain communication qualityConnection managementRadio transmissionOperation modeWireless connectivity
A wireless communication method includes attempting to establish a first wireless connection. Next, an attempt is made to establish a second wireless connection using a different channel from the first wireless connection. Subsequently, a determination is made as to whether the first wireless connection and the second wireless connection are established. When the first wireless connection and the second wireless connection are established, a manner of signal transmission between the first wireless connection and the second wireless connection is coordinated to transmit uplink data and downlink data, respectively, such that a duplex mode of operation is realized.
Owner:WISTRON NEWEB
Base station and method of controlling the same
ActiveUS20120094646A1Maintaining communication qualityMaintain communication qualityNetwork topologiesAutomatic exchangesCommunication qualityControl cell
Provided is a base station capable of maintaining a communication quality of a communication terminal (mobile station) having registered its position with the base station itself, even if an operating frequency is changed. According to the present invention, the base station includes a transmission and reception unit 102 configured to transmit and receive signals at the operating frequency for communication with the communication terminal, a pilot beacon transmission unit 104 configured to transmit a pilot beacon to a communication terminal, in communication with another base station, at an operating frequency of the another base station in order to allow the communication terminal to detect the operating frequency of the base station itself, and a control unit 101, if changing the operating frequency of the transmission and reception unit 102, configured to control the pilot beacon transmission unit 104 to change the frequency of the pilot beacon to transmit therefrom to the operating frequency of the transmission and reception unit 103 before changed and transmit the pilot beacon at this frequency.
Owner:KYOCERA CORP
Radio information terminal, radio communication system, and communicating method and program for use in the radio information terminal
InactiveUS6826386B2Increase the number ofMaintain communication qualitySpatial transmit diversityTransmission noise suppressionInterference (communication)Frequency reuse
Owner:HERA WIRELESS
Bandwidth control device, bandwidth control method, and wireless network system
ActiveUS20120243415A1Maintaining traffic communication qualityExcessive trafficError preventionFrequency-division multiplex detailsTraffic capacityWireless mesh network
In a network configured using a wireless link in which a transmission rate fluctuates, accommodation efficiency of traffic is improved while communication quality of VBR traffic is maintained. A bandwidth control device includes a stability level calculation unit which calculates a stability level indicating a probability that a bandwidth is available in a wireless link using adaptive modulation, a utilization rate calculation unit which calculates a utilization rate of a bandwidth used by traffic to be accommodated, an allocation unit which allocates, to the traffic, a link bandwidth of the stability level corresponding to the utilization rate of the traffic, and a path control unit which sets a path for the traffic in the wireless network including a communication device that performs communication over the wireless link based on the allocated link bandwidth.
Owner:NEC CORP
Radio base station, and communication control method
InactiveUS20120258764A1Reduce loadWithout degrading quality of communication servicePower managementRadio transmissionComputer terminalEngineering
A radio base station (1) measures the volume of communication with radio terminals connected to said radio base station (1), and if said volume of communication exceeds a threshold value, the radio signal transmission power of the base station is decreased, and a request is made to other radio base stations to increase the radio signal transmission power of said other radio base stations.
Owner:KYOCERA CORP
Terminal capable of substituting for control station
InactiveUS20070160074A1Maintain communication qualityAvoid accessNetwork topologiesData switching by path configurationReal-time computing
A terminal of the present invention comprises a control frame detection portion of detecting a control frame issued from a control station, a control frame memory portion of storing control information contained in the control frame, a substitute frame issuance determination portion of determining to issue a substitute frame when the control frame is not detected until a predetermined first time period is elapsed, and a substitute frame issuance portion of creating a frame which is the same as or equivalent to the control frame, as the substitute frame, based on the control information stored in the control frame memory portion when the substitute frame issuance determination portion determine to issue the substitute frame, and issuing the created substitute frame.
Owner:PANASONIC CORP
Apparatus and method for inferring the amount of interference in a wireless communication system
InactiveUS20070207738A1Eliminate the problemMaintain communication qualityNetwork topologiesTransmission monitoringCommunications systemAdmission controller
A wait-time acquisition unit measures a wait time before transmission of data in an exposed terminal, and an interference-amount inferring unit infers the amount of interference in the exposed terminal based on the wait-time information. A channel-utilization calculation unit calculates an amount of channel utilization based on the inferred amount of interference. A call admission controller controls call admission based on the amount of channel utilization that is considered with the amount of interference in the exposed terminal.
Owner:NEC CORP
Electronic device and control method thereof
InactiveCN103384025AMaintain communication qualityGood communication qualityAntenna supports/mountingsFrequency bandCapacitance
Provided is an electronic device and a control method thereof. The electronic device comprises a sensor plate, a proximity sensor, a controller and an adjustable antenna element. The proximity sensor is coupled to the sensor plate and is used for detecting a capacitance value between the human body and the sensor plate. The controller is coupled to the proximity sensor and generates a first control signal according to the capacitance value. The adjustable antenna element is coupled to the controller and comprises a main radiating part, a plurality of adjusting parts and a plurality of switchers. The switchers are respectively coupled between the adjusting parts and the main radiating part, and selectively connect or do not connect the adjusting parts and the main radiating part according to the control signal so as to correct an operation frequency band of the adjustable antenna element. When the human body is close to the electronic device, the electronic device can correct the operation frequency band according to the position of the human body so as to maintain good communication quality.
Owner:ACER INC
Control system, control method, and radio network controller preferably used for the system and method
InactiveUS6873626B2Maintain communication qualityPower managementTransmission control/equalisingCommunication qualityRadio networks
It is an object of the present invention to provide a control system making it possible to maintain communication quality, decrease transmission delay, and simultaneously connect with numerous mobile stations 40. The present invention is a control system for controlling the information rate through a downlink shared channel (DSCH) addressed to the mobile stations 40, which is provided with a transmission power control information receiving unit 23 for receiving the transmission power control information for a downlink dedicated channel (A-DPCH) transmitted through an uplink dedicated channel (DPCH), transmission power control information accumulating unit 23 for accumulating the transmission power control information for the downlink dedicated channel, and information rate controlling unit 22 for controlling the information rate through a downlink shared channel addressed to the mobile stations 40 according to the accumulated value of the transmission power control information for the downlink dedicated channel.
Owner:NTT DOCOMO INC
Monitoring and control module
InactiveUS7418088B2Low costPromote disseminationInterconnection arrangementsDigital computer detailsTelecommunications linkControl communications
A method and apparatus for monitoring and controlling one or more aspects of one or more communication devices. In one embodiment the communication device is configured to transmit and receive packets of data via a packet-switched network. In one configuration the monitoring and controlling is performed by a command and control system (C / C system) that is configured to operate in conjunction with a communication device. In one configuration the communication device comprises an Interface device configured to Interface a voice communication network with a packet switched network. The C / C system may be configured to monitor or control aspects of the communication device including temperature, cooling device operation, security, drive operation, power supply output and power supply routing, system re-boots, or any other aspect of device operation. In one configuration the C / C system Interfaces with a remote location via a communication link, such as a packet switched network. Monitoring and control of various systems can be achieved from the remote location.
Owner:TIERRA TELECOM
Multi-mode receiver circuit for dealing with various modulation systems and signal formats
InactiveUS7769114B2Avoid wastingReduce power consumptionMultiple modulation transmitter/receiver arrangementsModulation type identificationCommunications systemControl signal
In a receiver set, a shared receiver receives a signal formed according to one of various modulation or communication systems to output a received signal. A signal intensity detector detects the electric power value, or absolute value of the amplitude, of the received signal to output a detected signal. A determiner compares the magnitude of the detected signal with threshold voltages, and generates control signals to output them to switches. The switches are operated in response to the respective control signals fed to the switches so that the received signal is selectively fed to demodulators. The demodulators demodulate the received signal according to a receiving system corresponding to the modulation or transmission systems to output demodulated signals.
Owner:LAPIS SEMICON CO LTD
Communication apparatus and method for data communication and power transmission
ActiveUS8971799B2Guaranteed uptimeMaintain communication qualityCo-operative working arrangementsNear-field systems using receiversElectric power transmissionCommunication quality
The object of the invention is to achieve stable operation of a communication device which includes an information transmission means and a power transmission means while maintaining communication quality. A mobile device of the invention has an information transmission means for executing non-contact transmission, a power transmission means, a first control means for controlling the information transmission means to repeat an active period and a sleep period, and a second control means for controlling the power transmission means to transmit a power during the sleep period.
Owner:CANON KK
Base station apparatus, terminal apparatus, and communication method therefor
ActiveUS20190141731A1Maintain communication qualityConnection managementCommunication qualityTerminal equipment
Provided are a base station apparatus, a terminal apparatus, and a communication method, in a case that uplink data transmission based on orthogonal multiple access and uplink data transmission based on non-orthogonal multiple access coexist in a cell in which many terminal apparatuses present, capable of maintaining a prescribed communication quality for the uplink data. The base station apparatus for communicating with a terminal apparatus configured to support contention based access and non-contention based access transmits, in a case that an uplink data channel received in a non-contention based manner occurs in a subframe including the contention based access region, a contention based transmission configuration change notification with respect to a subframe configured to receive the uplink data channel.
Owner:SHARP KK
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