422results about How to "Reduce coverage" patented technology

A hierarchical cell structure (HCS) cellular communications system includes a macro cell encompassing a smaller micro cell that employ the same frequency band. The macro cell includes a macro cell base station, and the micro cell includes a micro cell base station. An uplink communication cell boundary between the macro cell and the micro cell is established, and a downlink communication cell boundary between the macro cell and the micro cell is established. A radio network controller determines whether a condition exists in the HCS system which indicates that the uplink and downlink micro cell boundaries should be unbalanced. If the condition is met or exists, the power and/or antenna beam tilt of a downlink transmission from the micro cell base station is reduced to unbalance the uplink and downlink micro cell boundaries. Alternatively, the radio network controller may employ an offset value to mathematically reduce mobile detected pilot power levels associated with the micro base station.

A method, program, system and apparatus perform dynamic load balancing of coverage areas in a wireless communication network. The dynamic load balancing is performed by evaluating cell congestion based on location information of subscribers in the wireless communication network, collecting network parameters related to the wireless communication network and altering network parameters based on the evaluated cell congestion. After the network parameter is altered, the coverage areas are narrowed. Improvements in cell congestion and quality of server are then determined based on the narrowing of the coverage areas. Altering of the plurality of network parameters and evaluating of the cell congestion are performed continuously until a target quality of service is achieved.

A system and method provides an electronic content to a vehicle from access point(s) within a network using a controller. The controller divides the electronic content into one or more files wherein each file contains at least one packet, and generates two or more random linear combinations of the packets within each file. For each file, each random linear combination of the packets is replicated to a different access point within the network. The electronic content is provided to the vehicle using at least one of the different access points. The controller can also determine a set of nearest trajectories for the vehicle in a location database that match a recent location history for the vehicle. For each determined nearest trajectory, one or more mobility trajectories are determined for the vehicle, and a set of access points are determined that correspond to the determined mobility trajectories for the vehicle.

A method and apparatus are provided for transmitting system information in a mobile communication system. The method includes configuring system information including first antenna configuration information and second antenna configuration information, and broadcasting the system information. The first antenna configuration information includes information about a number of antennas of a base station.

A plurality of pulses each having relatively low energy are consecutively applied to a subject fuse to cause breakdown, wherein the total energy of pulses is set in light of a prescribed breakdown threshold, which is calculated in advance. The subject fuse has a pair of terminals and an interconnection portion that is narrowly constricted in the middle so as to realize fuse breakdown with ease. A pulse generator generates pulses, which are repeatedly applied to the subject fuse by way of a transistor; then, it stops generating pulses upon detection of fuse breakdown. Side wall spacers are formed on side walls of fuses, which are processed in a tapered shape so as to reduce thermal stress applied to coating insulating films. In addition, pulse energy is appropriately determined so as to cause electro-migration in the subject fuse, which is thus increased in resistance without causing instantaneous meltdown or evaporation.

A system and method for inter-cell power control for interference management in an OFDM system is provided. The system provides for a combination use of open loop and closed loop PSD control algorithms. The open loop control is a function of path loss from the serving cell as well as the neighboring cells. The closed loop control updates the end node transmit PSD by listening to the load indicators from the serving cell and at least one other neighboring non-serving cell which generates the highest level of interference. The system thus provides a fast and tight control with multi-cell information that allows improved inter-cell interference control.

The teachings as provided herein relate to a watermark embedded in an image that has the property of being relatively indecipherable under normal light, and yet decipherable under UV light. This fluorescent mark comprises a substrate containing optical brightening agents, and a first dot design printed as an image upon the substrate. The first dot design has as a characteristic the property of strongly suppressing substrate fluorescence. A second dot design having a property of providing a differing level of substrate fluorescence suppression from that of the first dot design such that when rendered in close spatial proximity with the first dot design image print, the resultant image rendered substrate suitably exposed to an ultra-violet light source, will yield a discernable image evident as a fluorescent mark.

Methods and systems for generating a damage repair estimate, generating information relating to warranty and short sheet issues for a particular damage repair estimate, identifying included/non-included operations in a target damage repair estimate, and notifying entities of the existence of warranty and short sheet issues. The analysis portion accesses a central database of records for particular vehicles and determines whether a warranty, short sheet, or deviation from pre-determined repair procedures exists and creates a displayable file. Depending on the analysis requested, the system and method displays an appropriate damage estimate analysis. The notification portion accesses a central database of records for particular entities to contact for particular vehicles and electronically notifies entities of the existence of a damage estimate analysis.

The invention discloses a fabric with a function of bidirectional adjustment of heat humidity. In contact with skin, one side of the fabric is a lining that is woven from yarns with official moisture regain below 2%; the other side of the fabric is a surface layer and woven from yarns with official moisture regain above 8%; the lining of the fabric adopts a structure projecting towards the skin side; and the projecting area accounts for 10-60% of the total area of the fabric, and the projecting height is 0.12-1.0mm. The benefits of the fabric are as follows: effectively transmitting thermal heat in a moving state, bringing good thermal insulation effect into play in a static state no matter whether underwear is dry or wet by sweat, consequently preventing sweat upon movement and cold caused by clamminess after sweating, and being stable in performance of eliminating sweat. The fabric can be made into underwears, is especially suitable for use in multilayer dressing, or in high humidity and other situations similar to multilayer dressing. The fabric can also be made into other products such as pillow towels, sweat towels, saliva towels, bandeaux, wrist straps and the like.

The invention is directed to a method and system for equalizing the signal losses over cable runs in a Distributed Antenna System (DAS). In a DAS, two or more antennae are connected to the system by cable runs that can vary widely in length. As a result, the signal loss over a given cable run can also vary widely which can impact the design and deployment of the DAS and reduce antenna spacing. In addition, for a broadband DAS that supports many frequency bands or ranges using a common antenna unit, the signal losses vary with respect to frequency further making it difficult to equalize the cable losses. According to one embodiment of the invention, the method and system provide for measuring and adjusting the signal losses of each cable run to be a predefined value. According to another embodiment of the invention, the DAS can include a hybrid passive-active antenna unit which includes a frequency multiplexer that separates the signal into frequency bands or ranges that are connected to an antenna element associated with a particular frequency band or range. Where a single frequency band needs to be amplified (or attenuated), a single band amplification block (SBAB) can be inserted in the connection between the frequency multiplexer and the antenna element to amplify (or attenuate) the desired frequency band. Where more than one frequency band need to be amplified (or attenuated), a multiband amplification block (MBAB) can be inserted in the connection between the frequency multiplexer and the appropriate antenna element to amplify (or attenuate) the desired frequency bands.

A particle swarm algorithm is applied to an optimum coverage problem of wireless sensor network nodes, and the invention provides a coverage mechanism of the particle swarm optimization algorithm based on a discrete binary edition, and the mechanism is used for performing optimal solution on the wireless sensor network node coverage problem. The method comprises the following steps: defining the wireless sensor network node coverage problem as a 0/1 planning problem, encoding individuals of a binary particle swarm algorithm as a 0/1 binary string and then performing optimization by an evolutionism of the particle swarm algorithm. In the method, two important indexes are defined to evaluate the solution results, one index is 'coverage' of a region, and the other index is 'consumption rate' of the sensor. Validity and high efficiency of the algorithm are verified by a simulation experiment.

A method for fabricating an electronic device includes: a step of forming a first conductor to become a wiring or a wiring plug in a first insulating film; a step of forming a second insulating film on the first insulating film and the first conductor and, after that, forming a hole reaching the top face of the first conductor in the second insulating film; a step of forming a first barrier metal film on a bottom and side walls of the hole and on the second insulating film; a step of removing a portion formed on the bottom of the hole in the first barrier metal film to thereby expose the top face of the first conductor; a step of performing a plasma process using a reducing gas after the step of exposing the top face of the first conductor; and a step of forming a second conductor to become a wiring plug or a wiring by filling a conductive film in the hole after the step of performing the plasma process.

A communication system and method for controlling an antenna pattern is disclosed. The communication system may be situated on a mobile station, a base station, or a combination thereof. The communication system comprises a smart antenna module, a speed sensor, and a beam steering module. The smart antenna module may be situated on the mobile station, the base station, or a combination thereof. The smart antenna module generates at least one initial antenna pattern. The speed sensor is configured to determine a speed of a mobile station. The beam steering module generates an operating antenna pattern that is different from the initial antenna pattern. The operating antenna pattern is affected by changes in the speed of the mobile station.

Disclosed is a semiconductor device including: an insulating layer; a source electrode and a drain electrode embedded in the insulating layer; an oxide semiconductor layer in contact and over the insulating layer, the source electrode, and the drain electrode; a gate insulating layer over and covering the oxide semiconductor layer; and a gate electrode over the gate insulating layer, where the upper surfaces of the insulating layer, the source electrode, and the drain electrode exist coplanarly. The upper surface of the insulating layer, which is in contact with the oxide semiconductor layer, has a root-mean-square (RMS) roughness of 1 nm or less, and the difference in height between the upper surface of the insulating layer and the upper surface of the source electrode or the drain electrode is less than 5 nm. This structure contributes to the suppression of defects of the semiconductor device and enables their miniaturization.

In a wireless network comprising access points deployed within a designated zone of coverage, the radio frequency field strength resulting from radiation from the access points is optimised as a function of location by means of control of the transmission power and/or radiation pattern of the access points in response to measurements from sensors at defined locations that measure received signal power, the received power being related to radio frequency field strength. Sensors may be deployed within the designated zone of coverage, at the edge of the zone and/or outside the zone and optimisation of the transmission parameters of the access points in terms of transmission power and/or radiation pattern is carried out taking into account the location of the sensors in addition to the received power at the sensors.

A distance measuring device for measuring a distance of a vehicle to an obstacle and a method for testing the operation of a distance measuring system. Two measuring systems are provided, each operating according to a different measuring method. Reliable operation of the second measuring system is established when the second measuring system detects an obstacle which has already been detected by the first measuring system.

A display device includes; a first substrate, a first pixel electrode disposed on the first substrate, a second pixel electrode disposed on the first substrate and neighboring the first pixel electrode, a first color filter disposed under the first pixel electrode, a second color filter disposed under the second pixel electrode and overlapping the first color filter in an area between the first pixel electrode and the second pixel electrode, and a data line including a first portion and a second portion respectively disposed on left and right sides of the area wherein the first and second color filters overlap.

A method for sorting mined material in a sorting apparatus is disclosed. The method includes supplying particles of a mined material onto a conveyor belt (5), transporting the particles on the conveyor belt past a detection assembly (9, 13) and assessing the particles, and separating the particles based on the assessment into an accepts stream and a rejects stream at a discharge end of the belt using a separator assembly (29). The method also includes controlling the arrangement of particles so that there is an ordered arrangement of particles on the belt to optimise the throughput of particles through the sorting apparatus.

For use in a wireless network, a controller for relay stations. The relay station increases cell coverage and user data rates while employing power consumption saving techniques. The relay station compares a threshold power setting with a current power setting. If the threshold power setting is greater than the current power setting, the relay station increments the threshold power setting and decreases the cell coverage. If the threshold power setting is less than or equal to the current power setting, the relay station decreases the threshold power setting until the threshold power setting is equal to a total power setting of the relay station. The relay station also employs load balancing techniques by comparing a threshold power setting with a current load setting. If the threshold power setting is greater than the current load setting, the relay station increases the cell coverage based on the available bandwidth.

Method of and system for on-board substantially autonomous control for transferring a spacecraft from an initial orbit to a final geosynchronous orbit, by a trajectory that minimizes remaining transfer time and orbit transfer fuel. The spacecraft determines its orbit using a GPS-based system to determine the spacecraft orbital elements. Based on the measured orbit error, corrected co-state parameters are calculated and used to generate an updated thrust trajectory. The corrections are calculated using an innovative numerical procedure, carried out repetitively at a fixed interval until the target geosynchronous orbit is achieved.

The invention provides a method and device for generating a two-dimension code image. The method includes the steps that the information to be encoded and a background image are obtained, and a two-dimensional distribution matrix is generated according to the information to be encoded; the two-dimensional distribution matrix and the background image are fused to obtain a pre-generated two-dimension code image; the pre-generated two-dimension code image is decoded and grayed so as to omit at least one basic style, and the two-dimensional distribution matrix is updated according to the at least one omitted basic style; the updated two-dimensional distribution matrix and the background image are fused, so that the two-dimension code image is generated. According to the method for generating the two-dimension code image, coverage of the background image is reduced, so that the immersion degree of a two-dimension code in the background image is improved, the background image is highlighted, the completeness of the environmental color of the background image and the sense of harmony of pictures are guaranteed to the maximum degree, and therefore the display effect of the two-dimension code image is enhanced.

A conventional composition of carbon nitride has a deposition method and properties limited. In the case of using the composition of carbon nitride as a protective film, for example, a material of an object to be coated (goods) is required to satisfy with a condition in disagreement with a temperature during forming the composition of carbon nitride. Besides, in the case of using the composition of carbon nitride as an insulating film in a semiconductor device, low stress relaxation and low coverage for a step are produced since the insulating film has a low hydrogen concentration. Consequently, a composition including carbon nitride according to the present invention is formed at a deposition temperature that enables to include hydrogen in the composition at 30 to 45 atomic %, for example, at temperatures of 100° C. or less, preferably 50° C. or less, more preferably from 20° C. to 30° C., with stability and adhesiveness kept.

The invention discloses a beneficiation method for high-oxidation-rate copper-molybdenum paragenic ores. The beneficiation method comprises the following steps: (1) crushing: adopting a crusher to crush and screen raw ores, returning the raw ores with a particle size of (+)3mm to crush until the particle size of all raw cores reaches (-)3mm level; (2) carrying out ore grinding: adding the crushed raw ores with the particle size of (-)3mm into raw ore grinding equipment to carry out closed-hoop ore grinding operation, adding an activator with concentration being 1000-3000g/t and a vulcanizing agent with concentration being 250-900g/t into a grinder for grinding the raw cores until raw cores with the particle size of (-)0.075mm account for 55-80%; (3) carrying out primary flotation operation; (4) carrying out flotation scavenging operation; (5) carrying out flotation concentration operation; and (6) carrying out strong magnetic separation operation. The beneficiation method can be adopted to carry out beneficiation enrichment and recovery on copper oxide minerals and molybdenum oxide minerals in the high-oxidation-rate copper-molybdenum paragenic ores so as to obtain high-quality qualified copper concentrate and relatively enriched molybdenum middlings which can be used as raw materials for producing an ammonium molybdate product by chemical wet-process leaching, so that molybdenum oxide resources in the ores are recycled.