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35results about How to "Transmit power control" patented technology

User equipment and power control method for random access

An improved power control method and apparatus of a mobile terminal is provided for facilitating random access procedure in a mobile communication system based on a distributed antenna system. A method includes receiving, by the terminal, system information from a base station, the system information including transmit power information for transmitting a random access preamble; calculating a transmit power using the transmit power information; and transmitting the random access preamble using with the calculated transmit power.
Owner:SAMSUNG ELECTRONICS CO LTD

Bidirectional resonance DC converter and control method thereof

The invention discloses a bidirectional resonance DC converter and a control method thereof. The bidirectional resonance DC converter is formed by a low-voltage side power supply, a high-voltage side power supply, low-voltage side first switch tube-low-voltage side fourth switch tube, high-voltage side first switch tube-high-voltage side fourth switch tube, first and second resonant inductors, a resonant capacitor, first and second capacitors and a transformer. When energy is transmitted from the lower voltage side to the high voltage side, the bidirectional resonance DC converter realizes power control through phase-shifting control of the switch tubes at the two sides; and when the energy is transmitted from the high voltage side to the low voltage side, the bidirectional resonance DC converter realizes power control through frequency converting control of the switch tubes. The bidirectional resonance DC converter not only can realize bidirectional transmission and control of the energy at the two sides, but also can realize soft switching of all switch devices in full load range, and is especially suitable for being applied to high-frequency, high-efficiency and high-power-density two-way power transformation occasions.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Wireless communication terminal device, wireless communication base station device and wireless communication method

A wireless terminal which applies transmit power control for an SRS, said power control being flexible and not restricted by the transmit power control on a Physical Uplink Shared Channel (PUSCH), in order to enable various uses of the SRS in HetNet CoMP environments. The wireless terminal receives, via a Physical Downlink Control Channel (PDCCH), a control signal comprising a transmit power control command (TPC command) to be applied to an aperiodic sounding reference signal (A-SRS). The wireless terminal updates the A-SRS transmit power value using the TPC command, and transmits the A-SRS at the updated transmit power value in accordance with a transmission request included in the control signal that reports a Physical Downlink Shared Channel (PDSCH) allocation or a PUSCH allocation.
Owner:SUN PATENT TRUST

Control method and device of transmission power

The invention provides a control method and a device of transmission power, and relates to the communication field. After MSA is led in, a main base station is capable of effectively controlling transmission power of UE on PUCCH of an auxiliary area. The method comprises that the main base station determines transmission power control TPC resources used for the UE. The TPC resources are disposed for the UE by the main base station or by the auxiliary base station. Both the main base station and the auxiliary base station carry the transmission servie of the UCE. The main base station sends the TPC resources and the TPC adjusting the transmission power of the UE on the PUCCH of the axuliary area for the UE so as to allow the UE to identify the TPC according to the TPC resoureces and adjust the transmission power according to the TPC. The auxiliary area is an area for which the auxiliary base station provides services.
Owner:HUAWEI TECH CO LTD

Mobile station device, base station device, radio communication method and communication program

The inventioin aims to efficiently control the transmission power of a plurality of uplink carrier components used for radio communication by a mobile station device and a base station device. The mobile station device communicates by radio with the base station device using a plurality of component carriers. The mobile station device receives, from the base station device, downlink control information that includes information indicating radio resource assignment to a downlink shared channel disposed in any of downlink component carriers of a downlink control channel, and a TPC command to an uplink control channel in an uplink component carrier in which ACK / NACK to the downlink shared channel is transmitted.
Owner:SHARP KK

Power control method of uplink MIMO (Multiple Input Multiple Output) channel, and user equipment (UE)

The embodiment of the invention discloses a power control method of an uplink MIMO (Multiple Input Multiple Output) channel, and user equipment (UE), and the method and the UE are used for supporting the application scenes of the uplink MIMO, and realizing control on the transmitted power of the UE. The method discloses by the embodiment of the invention comprises the following steps: the UE carries out power compression on the uplink MIMO channel sending a main data transmission block and an auxiliary data transmission block when the total transmitted power is larger than the maximum allowed transmitted power, so that the total compressed transmitted power of the UE is smaller than or equal to the maximum allowed transmitted power.
Owner:HUAWEI TECH CO LTD

Method for adjusting emission power of wireless data card and wireless data card therefor

The embodiment of the invention discloses a wireless data card which includes an enhanced power supply interface module which is used to provide an interface coupled with the enhanced power supply and obtain power from the enhanced power supply, a universal serial interface power supply interface module which is used to connected with the universal serial interface and obtain power from the universal serial interface, a main processor which is used to detect the power signal of the enhanced power supply interface module and the universal serial interface power supply interface module, and to generate power control signal according to the detected signal, and a power amplifying module which is used adjust the transmitting power of the wireless data card according to the power control signal. The embodiment of the invention also discloses a method for adjusting the transmitting power of the wireless data card. Adopting the invention can control the wireless radio frequency transmitting power according to the status of power supplying, increase the transmitting power of the wireless radio frequency and ensure the performance of wireless transmission.
Owner:HUAWEI DEVICE (SHENZHEN) CO LTD

A method and arrangement concerning speech quality in radio communication

The present invention relates to estimating the speech quality obtained with a radio channel (37) for speech communication between a mobile station (MS1) and a base station (BS1) in a digital radio telephony system (3) (PLMN), wherewith the speech quality estimation achieved coincides to the greatest possible extent with the user's subjective estimation of the speech quality. A bit error rate associated with the radio channel (37) is measured. A fading frequency associated with the radio channel (37) is also measured. According to the invention, the speech quality is estimated with the aid of the measured bit error content and also with the aid of the measured fading frequency.
Owner:TELEFON AB LM ERICSSON (PUBL)

Radio communication terminal and transmission power control method

A first reception power measuring section 206 measures reception power of individual channel signals transmitted with a narrow directivity, and a second reception power measuring section 207 measures reception power of common channel signals transmitted with a wide directivity. A determining section 210 determines the presence or absence of a directional shift based on an average reception power of the individual channel signals and an average reception power of the common channel signals. A transmission power controlling means 211 performs transmission power control based on the determination result. This makes it possible to correctly determine the cause of a reduction in reception power and to control transmission power accurately.
Owner:PANASONIC CORP

Power control method of downlink high-speed shared control channel

ActiveCN1825776ATransmit power controlSolve the situation where the HS-SCCH transmit power offset parameter is not configuredPower managementEnergy efficient ICTData transmissionSelf adaptive
This invention discloses a power control method for a down high speed shared control channel including the following steps: A, determining the de-modulation performance of a down HS-SCCH at the base station, B, carrying out the adjustment to the emission power bias parameter of the down HS-SCCH based on the de-modulation performance of the HS-SCCH, C, adjusting the emission power of the down HS-SCCH based on the HS-SCCH bias parameter.
Owner:HUAWEI TECH CO LTD

Power headroom reporting method, configuration method, terminal and base station

The invention provides a power headroom reporting method, a configuration method, a terminal and a base station. The power headroom reporting method can comprise the steps of reporting capability information; and according to a reporting condition corresponding to the capability information, performing power headroom reporting, the capability information comprising information indicating whether the terminal supports full duplex. According to the invention, the corresponding power headroom can be reported according to the capability information.
Owner:BEIJING SAMSUNG TELECOM R&D CENT +1

Device for recycling waste heat generated in procedure of acid making and conversion of sulphide ore

The invention provides a device for recycling waste heat generated in a procedure of acid making and conversion of sulphide ore, belonging to the field of recycling residual heat resources. The device for recycling the waste heat generated in the procedure of acid making and conversion of sulphide ore comprises a heat exchanger and an absorption tower, and is characterized in that a connecting heat pipe evaporator is arranged between the heat exchanger and the absorption tower, and the heat pipe evaporator is merged into a low-pressure steam through a steam manifold. The heat pipe evaporator comprises a flue gas channel (1), a heat pipe (2), water sleeves (3), an ascending pipe (4), a steam manifold (5) and a descending pipe (6), wherein the heat pipe (2) is arranged in the flue gas channel (1), the water sleeves (3) are respectively arranged on the upper end of the heat pipe (2), the water sleeve (3) is connected with the steam manifold (5) through the ascending pipe (4), the steam manifold (5) is connected with another water sleeve (3) through the descending pipe (6). The device has the advantages of small flow resistance, high heat transfer efficiency, compact device structure, light weight, and convenience for maintenance, and effectively prevents the boiler feed water from leaking in the fuel gas channel.
Owner:SHANDONG BOFENG LIZHONG CHEM

Cellular system, base station, mobile station, and communication control method

InactiveCN101312598BTransmit power controlTransmit power suppressionPower managementControl signalPower balancing
Immediately before transmitting a packet signal, a packet transmission base station (BS1) increases a target SIR of UL DPCH (S12), increases the TPC transmission power transmitted by the DL DPCH (S13), increases a power balancing reference power, and increases a DL DPCH transmission power (S14). In a mobile station (MS3), during packet reception, only a packet transmission base station (1) controls the UL DPCH transmission power (S15). This improves the reception quality at the base station (1) of HS-DPCCH including ACK / NACK and reduces the error ratio of the ACK / NACK signal.
Owner:NEC CORP

Transmitting channel power self-adaption method, self-adaption device and transmitting device

The invention discloses a transmitting channel power self-adaption method, a transmitting channel power self-adaption device and a transmitting device, and the method comprises the steps: adjusting the transmitting channel power of transmitting equipment in a first working state, so as to enable ES / N0 of receiving equipment to meet a theoretical demodulation threshold; when the transmitting equipment is switched to a second working state, according to the adjusted transmitting channel power in the first working state, the working parameters of the transmitting device in the first working stateand the working parameters of the transmitting device in the second working state, and a theoretical demodulation threshold Es / N0 of the receiving device in the first working state and a theoreticaldemodulation threshold Es / N0 of the receiving device in the second working state, calculating actual transmitting channel power when the transmitting equipment is in the second working state, and configuring the actual transmitting channel power for the transmitting equipment in the second working state. When the link quality is ensured, the transmitting power is reduced as much as possible, and the adjacent channel interference, satellite transponder and power amplifier burdens are reduced.
Owner:四川安迪科技实业有限公司

Antenna module and related device

The embodiment of the invention provides an antenna module and a related device. The antenna module comprises an antenna and at least one sensing electrode, and the sensing electrode is located in an area which can be electromagnetically shielded by the antenna in at least one direction. The method comprises the following steps: acquiring a total self-capacitance change amount of a sensing electrode through a related device applied to an antenna module, and determining a first self-capacitance change amount of an antenna caused by temperature change according to the total self-capacitance change amount of the sensing electrode and a preset self-capacitance change proportionality coefficient; and determining a difference value between the total self-capacitance change amount of the antenna and the first self-capacitance change amount as a second self-capacitance change amount of the antenna caused by approaching of the object. According to the antenna self-capacitance change detection method, the antenna self-capacitance change caused by object approaching can be accurately determined, so that whether an object approaches or not is accurately judged, and the transmitting power of the antenna is better controlled and adjusted.
Owner:SHENZHEN XIHUA TECH CO LTD

Method and device for controlling open-loop power and computer readable storage medium

The disclosure relates to a method and a device for controlling open-loop power and a computer readable storage medium, and belongs to the technical field of communication. The method comprises the following steps: access network equipment determines a first path loss compensation factor of a first terminal and a second path loss compensation factor of a second terminal; and the access network equipment sends transmission power configuration information, wherein the power configuration information comprises the first path loss compensation factor and the second path loss compensation factor. The transmission power configuration information sent to the terminal by the access network equipment includes the first path loss compensation factor and the second path loss compensation factor, andthe terminal can select one of the first path loss compensation factor and the second path loss compensation factor as required to control the transmission power of the terminal, so that the application is flexible.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Electric cooker, and wireless power supply system for electric cooker and control method thereof

The invention discloses an electric cooker, and a wireless power supply system for an electric cooker and a control method thereof. The system comprises a wireless power supply transmitting end, a controller and a wireless power supply receiving end. The wireless power supply transmitting end comprises: a transmitting coil arranged in a housing of an electric cooker, wherein the transmitting coilis arranged around a heating area and / or a display control area of the electric cooker; and a power module configured to supply an alternating current to the transmitting coil to allow the transmitting coil to generate an alternating electromagnetic field. The wireless power supply receiving end comprises: a receiving coil configured to generate an induction current according to the alternating electromagnetic field; a first capacitor connected in parallel with the receiving coil; a detection module configured to detect the voltage of the first capacitor; and a controller configured to outputan alternating current of a preset voltage by controlling the power module to control the wireless power supply transmitting end to start at a corresponding transmitting power and receive the voltageof the first capacitor and regulate the transmitting power for the wireless power supply transmitting end according to the voltage of the first capacitor after the wireless power supply transmitting end is controlled to start.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Cellular system, base station, mobile station, and communication control method

The invention provided cellular system, base station and mobile station and communication control method. The cellular system comprises a mobile station and several base stations which are in a soft handoff state with the mobile station and set up and down special channels with the mobile station. One of the several base stations serves as a grouping transmission base station and transmits a grouping to the mobile station via a sharing channel. The mobile station comprises a device which controls receiving quality of transmission power control signals transmitted from the grouping transmission base station and contained in a down special channel by controlling interference ratio of target signal received by the down special channel; and a device for generating transmission power control signals of the down special channel.
Owner:NEC CORP

A transmission channel power adaptive method, an adaptive device, and a sending device

The invention discloses a transmission channel power adaptive method, an adaptive device, and a sending device. The method includes adjusting the transmission channel power when the sending device is in the first working state, so that the E of the receiving device s / N 0 Satisfy the theoretical demodulation threshold; when the sending device switches to the second working state, according to the adjusted transmission channel power in the first working state, the working parameters of the sending device in the first working state, and the parameters of the sending device in the second working state Working parameters, and the theoretical demodulation threshold E of the receiving device in the first working state s / N 0 and the theoretical demodulation threshold E of the receiving device in the second working state s / N 0 , calculating actual transmit channel power when the sending device is in the second working state, and configuring the actual transmit channel power for the sending device in the second working state. When guaranteeing the link quality, the transmission power should be reduced as much as possible to reduce the interference of adjacent channels and the burden of satellite transponders and power amplifiers.
Owner:四川安迪科技实业有限公司
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