418 results about "Total transmission" patented technology

A new system and method is described, utilizing a scheduler based on a transmission power consumption calculation and prioritizing algorithm. The system utilizes the (APSD) protocol specified in the 802.11e draft for saving power in wireless local area networks. The system comprises an access point having a priority queue, one or more stations, an APSD frame comprising an association ID for identifying one of the stations and a scheduled wake-up time for the identified station. An algorithm is employed for calculating the total transmission power consumption of downlink data for the stations. The AP originates and transmits to the one or more stations the APSD frame of the scheduled activation delay time. The current data to be transmitted to each station is accessed by the algorithm to determine the total transmission power consumption to each station. A priority queue in the AP is ordered from the lowest to the highest receiving power consumption, assigning the highest priority to the lowest power consumption transmission to minimize total power consumption to the PS stations in the AP queue.

An article comprising a surface portion is provided. The surface portion has a plurality of primary features, and the primary features have a height dimension in the range from about I micron to about 500 microns, an aspect ratio in the range from about 0.5 to about 10, and a spacing dimension in the range from about 0.5 to about 50 feature width units. The surface portion comprising the features has a wettability of the surface sufficient to generate, with a reference fluid, a static contact angle of greater than about 120 degrees and a total transmission of at least about 70% in the visible range of electromagnetic radiation.

Relay units (1002-1-1002-n) terminate a plurality of transport layer connections from terminals in a transport layer and relay each of these connections to other transport layer connections (relay connections). A transmission rate control unit (1003) determines the total transmission rate of the relay connections according to the number of connections that are being relayed and network congestion conditions such that a desired effective rate is obtained, and moreover, allots the total transmission rate as transmission rates to each of relay units (1002-1-1002-n) in accordance with the results of the analysis of information of the applications being carried on the transport layer connections during relay.

The invention discloses an uplink power control method, which is used for ensuring that a total transmission power of terminal equipment within a sub-frame does not exceed a maximum transmission power by carrying out power control on an uplink channel with different uplink transmission time so as to ensure that a system can work normally. The uplink power control method comprises the following steps of: determining a target emission power of each uplink channel/signal which is transmitted in a current uplink sub-frame by the terminal equipment; and carrying out the power control on the target emission power of each uplink channel/signal which is transmitted in the current uplink sub-frame by the terminal equipment according to uplink transmission time advance amounts of an uplink carrier wave of each uplink channel/signal and a sequence of the uplink transmission time advance amounts from large to small, so that the total emission power of the terminal equipment at the current uplink sub-frame at any time does not exceed a pre-set maximum emission power after the power control is satisfied. The invention further discloses a device for realizing the method.

The invention discloses a method for dynamic acquisition and transmission of wireless data. In a data acquisition process of the method, the time interval for data acquisition is dynamically adjusted, according to the change threshold of data acquisition. In a data storing process, the time interval and opportunity for data storing is dynamically adjusted according to the change threshold of data acquisition. In a data sending process, the opportunity for data sending is dynamically adjusted according to the acquisition value alarming threshold and changing rate alarming threshold of data acquisition. Dynamically increasing or reducing data sampling frequency without increasing power consumption of wireless equipment is realized based on data abnormity degree. Alarm information is timely sent by determination of dynamic data acquisition abnormity, so that managers can maintain equipment as early as possible. Wireless data bulk sent is reduced, and the power consumption of wireless monitoring equipment is reduced. The process state information of entire detected equipment can be monitored without increasing the total transmission data bulk.

The invention relates to an electrophoretic color display panel, the display panel comprising at least one pixel (10, 12), the at least one pixel (10, 12) comprising a layer cavity (18ab) containing a suspension with a first set of charged particles (24a) having a first optical property and a second set of charged particles (24b) having a second optical property, and a pair of control electrodes (20a, 20b) arranged adjacent to the layer cavity (18ab), such that charged particles (24a, 24b) are essentially in-plane displaceable in an in-plane direction within the layer cavity (18ab) upon application of a control voltage over the electrode pair, wherein the in-plane distribution of charged particles (24a, 24b) having first and second optical properties in the layer cavity (18ab) depends on at least one of a differing control property additional to any polarity difference of the charged particles (24a, 24b) for each set of charged particles, or at least one additional electrode arranged adjacent to the layer cavity, wherein the electrode pair (20a, 20b) and the at least one additional control electrode are arranged essentially outside of a viewing area (26) of the at least one pixel (10, 12), such that a composite optical property of at least a portion of the at least one pixel (10, 12) is controllable. According to the invention, the control electrodes will be arranged at essentially the outer ends, or arranged in-plane, at a peripheral, of a prolonged layer cavity, such that the particles move in an in-plane direction within the layer cavity when the control voltage is applied. This facilitates the handling of the pixel since the layer cavity can be reached from essentially the outside of the pixel. Another advantage is that since only a minor part of the pixel area has to be covered with an electrode material the total transmission and thus the brightness of the pixel can be optimized.

A sealed package's transmission of oxygen, water vapor, carbon dioxide, or other gas or vapor that is of interest because of its potential adverse effects on the package contents is determined indirectly, based upon the package's transmission of a different gas selected as a test gas. Helium is preferred as a test gas. The package's total transmission of the test gas is separated into its components of leakage through the package seals and permeation through the packaging material itself. The package's leakage of the gas of interest is determined based on its leakage of the test gas, in accordance with the molecular weights of the gases. The package's permeation of the gas of interest is determined based on its permeation of the test gas, in accordance with data correlating the permeation of the gas of interest and permeation of the test gas for the materials from which the package is made, and with package structure data relating to the size, shape, and disposition of the materials from which the package is made. The package's total transmission of the gas of interest is determined by adding its leakage and permeation components so determined. Such data may be used with other data to determine a packaged product's shelf life or its sensitivity to a gas of interest.

To optimize the selection of pre-coding vectors in a multi-user MIMO system, the present invention provides a method for selecting pre-coding vectors in a base station, comprising the steps of: transmitting a plurality of pilot signals without being precoded to the plurality of terminals; receiving a plurality of feedback signals from the plurality of terminals, wherein at least one feedback signal includes a plurality of recommended pre-coding vector information and a plurality of channel status information, and each of the channel status information corresponds to a recommended pre-coding vector information; generate a pre-coding codebook based on the plurality feedback signals, wherein at least one pre-coding vector in the pre-coding codebook is determined based on a correlation coefficient between at least two recommended pre-coding vectors; and performing a transmission operation using the pre-coding codebook. Through considering the correlation among pre-coding vectors and different channel status information corresponding to different pre-coding vectors, be used to extend the selection range of pre-coding vectors and improve the total transmission rate of the whole system and system capacity.

The invention discloses a rail engineering truck steering frame belonging to the field of rail vehicle steering frames. Aiming at the defects of large turning radius and incapability of meeting the low-speed operation working conditions of the traditional rail engineering truck, the steering frame comprises an H-type frame, ATP (Array Transform Processor) induction coil devices arranged at end parts of two lateral beams of the frame, rim lubricating devices arranged at two ends of a locomotive, a primary suspension device, a secondary suspension device, a third rail current collector arranged at the middles of the lateral beams of the frame, a basic brake device transversely arranged on the lateral beams of the frame, and a traction device connected with the frame by adopting a full-suspension manner; and a gear box is hung on a cross beam of the frame and is internally provided with two stages of gear transmissions with total transmission ratio of (7.63-10.03):1. The rail engineering truck steering frame has the highest operation speed of 90km/h, the continuous speed of about 18km/h and the lowest operation speed of below 5km/h and has the advantages of small turning radius, high low limit, simpler structure, convenience for maintenance and high reliability.

A transmitting apparatus includes a plurality of antenna elements, user signal output unit, calibration signal generation unit, antenna signal processing unit, and total transmission power measuring unit. The user signal output unit weights a user signal by an antenna weight and outputs it to each antenna element. The calibration signal generation unit outputs a calibration signal to be used to detect the characteristic of a transmission path. The antenna signal processing unit provided in the transmission path executes spread modulation and multiplexing for the user signal and calibration signal and outputs a multiplexed signal. The total transmission power measuring unit measures the value of total transmission power of the multiplexed signal to be transmitted from each antenna element on the basis of the multiplexed signal input from the antenna signal processing unit. An antenna weight correction unit executes a correction operation on the basis of the value of the total transmission power.

First layer resource allocation unit allocates sub band for each CPE. Second layer resource allocation unit allocates sub channel, and transmission parameters of sub channel in sub band corresponding to CPE with already allocated sub band. Basic requirement of IEEE 802.22 WRAN system is that transmission of WRAN user must be transparent for permitted user. In order to reach the target, we uses mask restriction of transmission power based on users to guarantee not generating interference on current users. Moreover, we also put forward optimal algorithm of providing maximized total transmission capacity, and satisfying power restriction based on user, and mask restriction of transmission power. The invention discloses cognition radio method of WRAN system. Making radio networks coexist, the method takes full advantage of resources of frequency spectrum.

Apparatuses, methods, and systems are disclosed for transmission power control. One method includes: receiving first scheduling information for a first uplink transmission having a first transmission period; receiving second scheduling information for a second uplink transmission having a second transmission period, wherein the first transmission period overlaps the second transmission period; determining a first transmission power for the first uplink transmission based on the first scheduling information; transmitting a first portion of the first uplink transmission with the first transmission power during a first time period in which the first transmission period does not overlap with the second transmission period, wherein a first total transmission power during the first time period equals the first transmission power; and transmitting a second portion of the first uplink transmission during a second time period in which the first transmission period overlaps with the second transmission period.

Radio base station apparatus 100 of the present invention monitors total transmission power which is the sum of transmission power for all mobile station terminals 200-203 connected for communication, reduces the upper limit of transmission power for the lowest prioritized mobile station terminal by a predetermined amount when the total transmission power exceeds a first threshold which is referenced to determine whether or not the transmission power has been reduced, and terminates communication with the lowest prioritized mobile station terminal when the total transmission power exceeds a second threshold which is larger than the first threshold.

A method and system for setting a variable forward error correction overhead in an optical transport network frame for an optical link at a node are disclosed. In one embodiment, a method includes selecting a forward error correction overhead, signaling an optical node the selected forward error correction overhead, and setting the forward error correction overhead in the optical network transport frame for use in transmission of data over the optical link. In one embodiment, the forward error correction overhead is complementary to the data payload to maintain total transmission rate.

The invention relates to a method and a system for forwarding network data by a wireless sensor. The method comprises the following steps that: 1, a destination node sends information on own geographical position, and a common node sends information on own geographical position and residual energy; 2, the common node receives the information on the geographical position of the destination node andthe information on the geographical positions and the residual energy of neighbor nodes; 3, the common node selects the neighbor nodes which are closer to the destination node as predecessor neighbornodes according to the information on the geographical positions of the destination node and the neighbor node; 4, the common node estimates the total transmission times to reach the destination nodeby using each one of the predecessor neighbor nodes as the next hop; and 5, the common node compares the total transmission times with the residual energy of the each one of the predecessor neighbornodes, and selects the next hop common node of a route reaching the destination node from the predecessor neighbor nodes. The method and the system can perform load balancing and improve the energy service efficiency while ensuring reliable data transmission.

A transmitting device includes a transmission signal generating unit configured to generate a transmission signal by inverse-Fourier-transforming reference signals and data signals mapped to subcarriers and a transmitting unit configured to wirelessly transmit the transmission signal. In the transmitting device, a total power level allocated to signals to be transmitted in a time slot is equal to a total power level allocated to signals to be transmitted in any other time slot, and a power density per unit bandwidth of the reference signals is greater than a power density per unit bandwidth of the data signals. This configuration makes it possible to equalize the total transmission power level of all time slots and thereby to improve the power amplification efficiency. Also, with this configuration, since the reference signals are transmitted with a higher power than that for other signals, it is possible to improve the accuracy of channel estimation.

The present invention prevents an increased error rate, degradation of reception-quality estimation precision, and complication of control in an operation for independently controlling, for individual component carriers (CC), transmission timing of an uplink subframe. When a wireless communication terminal device independently controls the subframe transmission timing for individual CCs, and a portion of the total transmission power where overlap exists between the trailing-end portion of a subframe of a CC and a leading-end portion of a subframe of another CC exceeds a tolerance, the terminal device controls the timing such that the transmission power of a symbol including the overlapping portion is reduced.

A packet processing apparatus includes a packet processing engine and a search engine connected through a bus having a bandwidth which is equal to or greater than a total transmission bandwidth of one or more receiving ports. The packet processing engine is configured to append a device internal header containing a search key to each of the packets, transfer the packets to the search engine through the bus, and receive the packets whose device internal headers are provided with search result information from the search engine through the bus. The search engine includes a packet buffer for temporarily storing the packets, a search processing part for performing search processing on the basis of the search key in the device internal header, and means for transferring the search result information from the search processing part and the packets stored in the packet buffer to the packet processing engine.