30results about How to "Improve wireless communication quality" patented technology

The invention comprises a wireless communication method of an LTE (Long Term Evolution) network comprising a macro cell base station and a home base station. According to the characteristics of the home base station, i.e. the characteristics of allowing public access or partially allowing the public access or only allowing to close the access of user set equipment as well as the specific circumstance of entered mobile equipment in a coverage area of the home base station, the interference of the home base station to the mobile equipment connected to the macro cell base station in a down link is reduced by adopting a mode of whether to close the user set equipment or not according to the condition whether the mobile equipment is in an activated state or not so as to improve the wireless communication quality of the mobile equipment connected to the macro cell base station in the coverage area of the home base station.

The invention discloses a method for research on electromagnetic wave propagation in a semicircular arched tunnel, which can quickly calculate attenuation rate of electromagnetic wave propagation in the semicircular arched tunnel. The method comprises the following steps of: measuring width and height of the semicircular arched tunnel; calculating area and shape factors of the semicircular arched tunnel; making the semicircular arched tunnel equivalent to a rectangular tunnel according to an equivalent method of equal area and equal shape factors involved in the patent of the invention; and executing calculation according to a electromagnetic wave attenuation rate model of the rectangular tunnel. As compared with several other methods, the method involved in the invention has lower error, can easily calculate electromagnetic wave attenuation rate, and so on, of the semicircular arched tunnel unmatched with an orthogonal coordinate system. Rapid low-error calculation is realized. The method of the invention realizes equivalent transformation of the semicircular arched tunnel unmatched with the orthogonal coordinate system, with the rectangular tunnel; the method reduces errors generated by calculation to a certain degree, calculates more conveniently and simply, and reduces complexity in research on electromagnetic wave attenuation in the tunnel of a shape unmatched with the orthogonal coordinate system; and the method has the advantages of calculating conveniently, being easy to understand and generating low error, and can be effectively used for wireless communication in the tunnel of a shape unmatched with the orthogonal coordinate system.

The invention discloses an uplink power control method based on adjacent cluster interferences; the features are that the method comprises the following steps: 1, initializing a network system; 2, determining an accumulated maximum interference signal power received by a k th cluster head; 3, determining a minimum reception power requested by the k th cluster head; 4, determining the minimum reception power requested by the k th cluster head broadcasting to in-cluster nodes; 5, determining an emission power of the in-cluster node. The method can reduce interferences between adjacent clusters in an underwater wireless sensing network, thus improving the wireless communication quality of the whole network.