129results about How to "High gain performance" patented technology

A method for coordinated multipoint communication in a wireless communication network is described. The wireless communication network has a plurality of base stations and a backhaul network connecting the plurality of base stations. The method includes selecting (S302) one or more cooperating base stations for a coordinated multipoint communication for a mobile unit serviced by a serving base station, determining (S310) whether the backhaul network supports a coordinated multipoint technique selected for a cooperating base station, and in case the backhaul network is not sufficient to support a coordinated multipoint technique for one or more of the cooperating base stations, reconfiguring (S312) the backhaul network to meet the requirements of the coordinated multipoint technique.

An embodiment of the invention discloses a method for determining a logarithm likelihood ratio, a Turbo encoding method and a device thereof and is applicable to multiple-input and multiple-output systems. The method for determining the logarithm likelihood ratio includes adaptively selecting nodes for received signals, and determining survival paths of transmitted signals and measurement values corresponding to the survival paths; dividing the measurement values into a first set and a second set; respectively iteratively computing the measurement values in the first set and the measurement values in the second set to obtain first approximation probability of the first set and second approximation probability of the second set; and computing the difference of the first approximation probability and the second approximation probability to obtain the logarithm likelihood ratio of the transmitted signals. The method for determining the logarithm likelihood ratio, the Turbo encoding method and the device thereof solve technical problems of low computation accuracy of logarithm likelihood ratio of transmitted signals and incorrectness of encoding in the prior art.

Polymer conductive silver paste comprises the following materials including, by weight, 12-17 parts of silver powder, 12-17 parts of copper powder, 12-17 parts of aluminum powder, 1-2 parts of tin powder, 1-5 parts of nickel powder, 3-5 parts of polyester acrylic resin, 6-10 parts of epoxy acrylic resin, 2-4 parts of benzophenone, 2-4 parts of diphenyl diketone, 15-40 parts of trimethylolpropane triacrylate and 10-30 parts of tripropylene glycol diacrylate. According to the polymer conductive silver paste, due to the fact that the silver powder, the copper powder and the aluminum powder are used for replacing silver powder or copper powder in the prior art, the material cost is low; since a moderate amount of the tin powder and the nickel powder are added into the materials, tests show that the gain performance of a wireless receiving antenna can be greatly enhanced, and the direction performance of the wireless receiving antenna can be improved; due to the fact that various chemical compositions which can be cured through UV rays are used as solvents, the polymer conductive silver paste is not only suitable for silk-screen printing but also suitable for printing on a continuous drum-type printing press, manufacturing cost can be greatly lowered, and the polymer conductive silver paste is also suitable for being printed on a flexible substrate.