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53results about How to "Increase sending power" patented technology

Uplink interference coordination combined power control method among communities

The invention provides an uplink interference coordination combined power control method among communities. The method includes the steps of dividing bandwidth resources of a community into periphery frequency bands and central frequency bands and periphery frequency bands of adjacent communities are orthogonal; determining whether users in the community are central users or periphery users, distributing the periphery frequency bands to the periphery users, and distributing the central frequency bands to the central users; and improving the transmitted power of the periphery users and / or reducing the transmitted power of the central users. According to the method, uplink interference coordination and power control among communities are combined for usage, the transmission efficiency of the periphery users can be further improved, and the interference coordination performance can be optimized.
Owner:POTEVIO INFORMATION TECH

Method for making synchronization by utilizing time domain spread spectrum beacon in digital video broadcast

The invention provides a kind of method for carrying on quick and reliable synchronization by using time region frequency expansion signal mark in digital video broadcast, the signal mark includes long synchronization and the short synchronization signs: the long one is used in quick time and frequency capture, the short one is used in the precise estimation of residual deviation, I / Q unbalanced and other hardware nonideal characteristics. Some important system parameter such as FFT block length and the protection interval length are coded in the short synchronization sign in order to support variant system work mode.
Owner:TIMI TECH

Fire detector for monitoring room by means of combination of smoke density measurement and temperature measurement

The invention relates to a fire detector (20 to 25) for monitoring a room and for triggering a fire alarm, having a smoke sensor (2) and a temperature sensor (3), wherein a smoke density can be measured by the smoke sensor (2) and a temperature can be measured by the temperature sensor, wherein when a temperature threshold value is exceeded and / or a smoke density threshold value is exceeded an alarm can be triggered, wherein the temperature threshold value is dependent on the smoke density and / or the smoke density threshold value is dependent on the temperature, wherein the fire detector (20 to 25) comprises a memory (10). A complicated evaluation as to whether the temperature threshold value or smoke density threshold value has been exceeded is avoided and the risk of false alarms is reduced as a result of the fact that a matrix is filed in the memory (10), wherein the matrix contains combination values, wherein by means of the matrix one of the combination values can be assigned to the measured temperature and the measured smoke density, wherein the combination value indicates whether the temperature threshold value and / or the smoke density threshold value has been exceeded or fallen below.
Owner:W 霍赛特

Antenna calibration method and base band unit

An embodiment of the invention discloses an antenna calibration method and a base band unit, belongs to the field of wireless communication and is used for improving the accuracy of antenna calibration. According to the scheme of the antenna calibration method and the base band unit, at least two times of calibration processes are performed in a current calibrating period after a calibrating signal to be sent is generated, and during every calibration process, the calibrating signal is firstly needed to be subjected to channel difference compensation according to a phase compensation coefficient and then sent by a sending channel. Therefore, the signal peak-to-average ratio is reduced and the accuracy of the final calibration result can be improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Ultra-long single span optical transmission method based on polarization multiplexing push-pull modulation encoding

The invention relates to an ultra-long single span optical transmission method based on polarization multiplexing push-pull modulation encoding. The optical transmission method comprises the following steps: dividing a light source of a transmitting end into two paths of polarized orthogonal light by a polarization beam divider, inputting the two paths of polarized light into two identical Mach-Zehnder modulators, carrying out non-return-to-zero code modulation by data and radix-minus-one complement thereof, and transmitting to an optical fiber; and receiving optical signals on the optical fiber by a receiving end, carrying out polarization state stabilization, then separating the two polarization multiplexing optical signals, respectively receiving by a photoelectric detector and converting into two paths of electric signals which pass through a balanced receiver to obtain signal-to-noise ratio gain. The transmission method inhibits the non-linear effect at the transmitting end and improves the transmitting power, and improves the receiving signal-to-noise ratio of the system at the receiving end, thereby improving the overall system performance.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Method and device for sending control information in multi-carrier mode

The invention provides a method and a device for sending control information in a multi-carrier mode. The method mainly comprises the following steps: constructing a message carrying the control information of associated data transmission of a main carrier and an auxiliary carrier according to the preset transmission format of the control information of the main carrier; and sending the message on the main carrier through an HS-SCCH (a high-speed shared control channel) channel. The method and the device can only use one main carrier to transmit the control information of the associated data transmission of the main carrier and the auxiliary carrier, enhance the sending power of the HS-SCCH channel of the main carrier and improve the total throughput of a cell, or can reduce redundant information in an encoding format of the HS-SCCH channel of the main carrier and the auxiliary carrier.
Owner:HUAWEI TECH CO LTD

Transmission control device, wireless base station and transmission rate control method

Provided is a transmission control apparatus capable of relieving a processing load at control of a downlink transmission rate of a mobile station even when transmission power is increased due to deterioration of a propagation environment or the like. The transmission control apparatus for controlling a transmission rate of a downlink of a communication terminal on the basis of downlink transmission quality solves the problem above and is characterized in to include: a transmission quality acquisition means for the downlink transmission quality of a plurality of communication terminals; a communication terminal selection means for selecting a communication terminal for changing the downlink transmission rate among the plurality of communication terminals in response to the acquisition result of the transmission quality acquisition means; and a transmission rate revision means for revising the downlink transmission rate of the communication terminal selected by the communication terminal selection means.
Owner:NTT DOCOMO INC

Method and device for regulating power

The invention discloses a method for regulating power. The method comprises the following steps of: adding a new judgment branch during a former power regulation process; if the power of a current-regulated Radio is a minimum value and the power further needs being regulated to be less, regarding that a high-density deployment condition of AP (Access Points) exists in the area of the Radio; and carrying out a channel allocation and a power regulation by adding a high-density group. Based on the same inventive concept, the invention further provides a device capable of leading the Radio of a plurality of the APs which provide services within the same area to be a maximum sending power.
Owner:NEW H3C TECH CO LTD

Multimode fiber transmission method based on subcarrier index modulation

The invention provides a multimode fiber transmission method based on subcarrier index modulation. An additional modulation dimension is added based on the conventional two-dimensional amplitude / phase modulation APM, and the main thinking method is to transmit information through an index number of a subcarrier; some carriers are selected to be silent and data is not sent, so that the possible deep fading at the frequencies can be avoided, and a purpose of restraining intersymbol interference is realized. An SIM is different from the conventional OFDM, all subcarriers of the conventional OFDM can transmit the data and the SIM transmits some bits in a form of subcarrier index numbers. A combinatorial mathematics theory for bit selection can be corresponding to different subcarrier index manners, the part of bits are not transmitted, but are taken as carrier distribution information to be added into the whole system. According to the method, the frequency selective fading of a multimode fiber can be avoided to a certain probability, so that the performance can be remarkably improved, and the bit error rate is reduced.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Electronic device, user device, wireless communication method, and storage medium

The invention relates to electronic equipment, user equipment, a wireless communication method and a storage medium. An electronic device according to the present disclosure includes a processing circuit configured to: receive, from a user equipment, a random access request message expected to be accessed to a satellite device; and in response to the random access request message, sending a timingadvance between the user equipment and a satellite device to be accessed to the user equipment. By using the electronic equipment, the user equipment, the wireless communication method and the storage medium disclosed by the invention, the user equipment in a satellite communication system can acquire the control information related to uplink transmission more quickly and effectively.
Owner:SONY CORP

Power carrier communication circuit capable of overcome compensating capacitor

This invention relates to a power carrier communication circuit, in which, the transmission part includes a load capacitor, a rectifying bridge, a switch tube and a current-limit resistor, in which, one end of the load capacitor is connected to the cable, the other end is connected with an AC input end of the rectifying bridge and the other AC input end is connected to the cable, the drain of the switch tube is connected with the positive of the bridge and the source is connected to the negative, one end of the current-limit resistor is connected to the grid of the switch tube and the other is connected with transmitted signals, the emitter and the collector protecting a triode are connected to the source and drain of the switch tube, two dividing resistors are connected with the base protecting the triode to be parallel to the bridge and output.
Owner:杭州瑞琦信息技术有限公司

Power control apparatus and method for inter frequency handoff in cdma communication system

Disclosed is a power control method for a mobile station which has at least one frame including a data transmission duration where data is transmitted at a first frequency, and a data transmission-off duration where a second frequency is searched to perform an inter-frequency handoff to the second frequency. The transmission power at the data transmission duration is increased to compensate for the loss of transmission power during the data transmission-off duration. In the method, a base station sets a power control threshold depending on the length of the data transmission-off duration. The base station receives power-increased data and compares the received power of the data signal with the power control threshold. The base station generates a power-up command when the power control threshold is higher than the receiving power, and generates a power-down command when the power control threshold is lower than the receiving power.
Owner:SAMSUNG ELECTRONICS CO LTD

Power-generation-and-transmission combined dynamic capacity-increase method and system thereof

The invention provides a power-generation-and-transmission combined dynamic capacity-increase method and a system thereof. The method comprises the following steps of acquiring a lead temperature of each monitoring point on a power transmission line and meteorological data of a circumference environment of each monitoring point in real time, and acquiring operation data of a power-plant sending out line and a lead current of the power transmission line; according to the meteorological data, a maximum allowable temperature of a lead and a physical parameter of the lead, calculating a maximum allowable current-carrying capacity of the lead of each monitoring point; according to a scheduling value which is sent to the power plant by a provincial dispatching system, the maximum allowable current-carrying capacity of the lead of each monitoring point and the operation data of the power-plant sending out line, generating a capacity-increase instruction or a non-capacity-increase instruction so as to control output power of a generator set.
Owner:BEIJING GUOWANG FUDA SCI & TECH DEV +1

Base station device and transmission method

Signals to be subject to variable directional transmission are multiplied by weighting factors for individual antennas (101 to 103) at a multiplier (152) for outputting to synthesis circuits (155 to 157) respectively, while signals not subject to variable directional transmission are output to any one of the synthesis circuits (155 to 157) respectively. A signal input to a synthesis circuit (155) is synthesized, radio-modulated at a radio unit (104) and transmitted from an antenna (101). Similarly, a signal input to a synthesis circuit (156) is synthesized, radio-modulated at a radio unit (106) and transmitted from an antenna (102), and a signal input to a synthesis circuit (157) is synthesized, radio-modulated at a radio unit (106) and transmitted from an antenna (103). Thereby, it is possible to dispersedly transmit signals not subject to variable directional transmission from individual antennas to reduce a transmission power and the size of a device when variable directional transmission is performed on part of terminal devices only.
Owner:GK BRIDGE 1

Wireless communication apparatus and number-of-transmission-streams determination method

A wireless communication apparatus is configured to: execute, on the basis of pieces of transmission-line quality information between the wireless communication apparatus and a plurality of respectivecounterpart wireless communication apparatuses that are targets and for each counterpart wireless communication apparatus, first processing for determining the number of allocatable maximum transmission streams; calculate a diversity order value of each stream using the number of maximum transmission streams obtained through the first processing; execute, for each counterpart wireless communication apparatus, second processing for determining the number of transmission streams by comparing the calculated diversity order values of the streams with a preset diversity order lower limit value; determine, for each counterpart wireless communication apparatus, the number of transmission streams obtained through the second processing to be the number of finally determined transmission streams; and report the determined number of finally determined transmission streams.
Owner:MITSUBISHI ELECTRIC CORP

Energy efficiency-based secure transmission method in cache-assisted multi-relay transmission system

The invention discloses an energy efficiency-based secure transmission method in a cache-assisted multi-relay transmission system. The method comprises the following steps: firstly, RS encoding is performed on a data packet, wherein the transmission process comprises two stages, in the first stage, a sending node sends all coding packets to relays, each time slot selects one relay as a receiving end according to channel state information of all relays, and sending power is adjusted according to the channel state of the selected relay, so that the probability of receiving by an eavesdropper isreduced, and the energy efficiency of transmission is improved; and, in the second stage, the relay sends an encoding packet to the receiving node, one relay is selected as a sending end in each timeslot according to the channel state between the relay and the receiving node, and the instantaneous sending power is adjusted. According to the method, the data decoding probability of the eavesdropping node can be effectively reduced, and relatively high energy transmission efficiency is realized.
Owner:XI AN JIAOTONG UNIV

Method and device for regulating power

The present disclosure relates to a method of radio resource management for a communication network including an Access Controller and a plurality of Access Points. The Access Controller manages the plurality of Access Points, each of which provides a radio for accessing the network. The Access Controller (AC) creates a high-density group and joins a present radio and, with respect to the present radio, radios having signal strengths higher than a power-adjustment threshold into the high-density group, when it determines that the transmission power of the present radio is less than or equal to a minimum transmission power threshold, and that the difference between a first parameter that is the signal strength with respect to the present radio of a radio having the weakest signal strength amongst the radios having signal strengths higher than a power-adjustment threshold and a second parameter that is the power-adjustment threshold is higher than a predetermined down-adjustment interval. The AC changes at least one of the radios in the high-density group from an ON state, in which communication is enabled, to an OFF state, in which communication is disabled, when the number of radios in the high-density group is greater than the number of a plurality of available channels. The AC assigns a channel from amongst the plurality of available channels to each of the radios in the high-density group, and adjusts the transmission power of a radio in the high-density group to the smaller of a predetermined configuration power and a maximum power if the status of the radio is changed after a channel is assigned.
Owner:NEW H3C TECH CO LTD

Frame capture synchronization method and device

The invention relates to a frame capture synchronization method and device, and the method comprises the steps: obtaining a received signal and a first power value thereof, calculating a cross-correlation value between the received signal and a local short training domain sequence, and obtaining a frame boundary position according to the cross-correlation value and the first power value, the short training domain sequence of the received signal comprising a scrambling code layer; calculating a time domain self-correlation value and a second power value of the received signal from the frame boundary position; peak value judgment is carried out in a second preset search window according to the time domain self-correlation value and the second power value, peak value search is carried out on the received signals meeting the peak value judgment condition in the second preset search window, the maximum judgment value in peak value judgment is found out, and the judgment value is the ratio of the time domain self-correlation value to the second power value; the position corresponding to the maximum value is a synchronization point position, so that synchronization success is judged. According to the invention, the problem of poor synchronization performance of a synchronization method in the prior art under the conditions of large noise interference and low signal-to-noise ratio can be solved.
Owner:SPL ELECTRONICS TECH CO LTD

Method and apparatus for subchannel assignment for suppressing interantenna interference in OFDMA system

Disclosed is a method and an apparatus for subchannel assignment for suppressing inter-antenna interference in an Orthogonal Frequency Division Multiplexing Access (OFDMA) system based distributed wireless communication system equipped with antennas that are randomly distributed in a geographical manner and can simultaneously communicate with multiple Subscriber Stations (SSs). The method includes selecting and obtaining access to distributed antennas which satisfy the data transmission rate that an SS requires and with which the SS can communicate; re-queuing a distributed antenna having themaximum transmitted power within the same cell in high priority; and assigning subchannels to the relevant distributed antennas in an order from the relevant distributed antenna having the high priority.
Owner:SAMSUNG ELECTRONICS CO LTD +1

Data transmission method, apparatus, and data transmitting end

The present disclosure relates to a data transmission method, an apparatus, and a data transmitting end. The method includes: determining a target transmit power and / or a target transmit beam of a data block to be transmitted based on an actual number of transmissions of the data block to be transmitted and a set number of transmissions; and transmitting the beam through the target and / or the target transmit power The data block is transferred. The technical solution of the present disclosure can improve the reliability of data transmission by adjusting data transmission power and / or data transmission beam when the actual number of data transmission times is less than the set transmission frequency K, so as to achieve reliability of data transmission and delay of time delay.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Network node for a wireless sensor network

The invention relates to a network node for a wireless communication network, in particular for a wireless sensor network, comprising a wireless communication device (6). The communication device (6) can be operated in a first communication mode in which the communication device transmits first communication signals at a first transmission power in order to wirelessly communicate with other network nodes (1) in the communication network. Furthermore, the communication device (6) can be operated in a second communication mode in which the communication device (6) transmits second communication signals at a second transmission power in order to communicate with a transponder (11), wherein the second transmission power is greater than the first transmission power. In the first communication mode, the presence of a transponder (11) in the surroundings of the network node (1) can be detected by the communication device (6) by means of the first communication signals.
Owner:GIESECKE & DEVRIENT MOBILE SECURITY GMBH

Method, device, and computer program for mobile device

A method, a device, and computer program for a mobile device for reducing interference between a first mobile communication system and a second mobile communication system and a vehicle including thedisclosed device. The method (100) for the mobile device (110) receives information about a location of one or more transmitters of the first mobile communication system and information about a used communication resource of the one or more transmitters of the first mobile communication system, (120) determines a position of the mobile device, and (130) adapts the communication of the mobile device via the second mobile communication system for the position of the mobile device based on the information about the location of the one or more transmitters of the first mobile communication system.
Owner:VOLKSWAGEN AG

Communication apparatus

InactiveCN102843171AThe strength of the induced electric field increasesEasy to get certifiedNear-field for read/write/interrrogation/identification systemsNear-field systems using receiversEngineeringTelecommunications equipment
Provided is a communication apparatus including a substrate, a high-frequency coupling device including a coupling electrode and a ground formed as a conductive pattern on the substrate, a communication circuit unit configured to process a high-frequency signal transmitted and received by the coupling electrode, and a resonant unit configured to increase an amount of electric current flowing into the coupling electrode. The high-frequency coupling device is configured such that a longitudinal length is shorter than a lateral length.
Owner:SONY CORP

Method and device for increasing line rate

An embodiment of the invention provides a method of increasing a transmission rate, comprising: obtaining, at a transmission end, a precoding coefficient P as indicated by , wherein H-1 is an inverse matrix of a channel transfer matrix H on M twisted pairs, and is a diagonal matrix by taking a direct channel in the channel transfer matrix H as a principle diagonal element; performing, according to the precoding coefficient P, precoding on a signal to be transmitted on the M twisted pairs; and transmitting the signal to be transmitted after precoding. Also provided in another embodiment of the invention is a device capable of increasing a transmission rate.
Owner:上海朋邦实业有限公司
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