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32results about How to "Smooth evolution" patented technology

Indoor distribution system MIMO single cable covering method and system

InactiveCN104301909AComplete MIMO FeaturesReduce the amount of engineering transformationSpatial transmit diversityNetwork planningFrequency conversionDistribution system
Provided is an indoor distribution system MIMO single cable covering method and system. An MIMO host machine enables one of the two paths of signals output by an LTE two-channel RRU to be combined with signals of an original distribution system, and the other path of signals to be subjected to frequency conversion; the two paths of signals are then combined into new signals which are then transmitted to an MIMO slave machine through a feeder line of the original distribution system; the MIMO slave machine enables the combined signals to be separated, and the signals which are subjected to frequency conversion are separated out and the frequency of the signals is reduced; and the signals are sent out by utilizing one path of single-polarized antenna or one path of a dual-polarized antenna, and the other path of signals are sent out by utilizing the other path of single-polarized antenna or the other path of the dual-polarized antenna, so that under the condition of not changing the structure of the original indoor distribution system, complete LTE MIMO characteristics are achieved. According to the technical scheme of the invention, with the indoor single cable covering method, the complete LTE MIMO characteristics are achieved without changing the structure of the original indoor distribution system, and engineering reconstruction amount and construction cost are effectively reduced.
Owner:河南普世通信科技有限公司

Evolvement system being compatible with variable frequency range Wimax system, frame as well as generating method thereof

An evolution system, frame compatible with diverse frequency range Wimax systems and a production method thereof are disclosed, sub-carrier wave and circulation prefix of the compatible Wimax system are the same as each other, number N of the evolution system IFFT is determined to be larger than or equal to sum of numbers of IFFTs corresponding to each compatible Wimax system; in accordance with the number and spacing of the sub-carrier wave of the Wimax system, transmission rate of the evolution system is obtained; data points of the signal are transmitted according to the transmission rate as well as coded and modulated; the data points carrying information of diverse frequency range Wimax systems are arrayed at diverse positions of N point IFFT in terms of each system frequency range, these position are not mutually superposed; the arrayed N data points is performed IFFT operation of N point at each time so as to transform to OFDM time frequency symbols, and the circulation prefix having the length same as the Wimax system is added to the OFDM symbols which is then transmitted; a plurality of symbols combine into a frame. The invention enables the terminals of diverse frequency range Wimax systems to be accessible to the evolution system.
Owner:徐州铁手五金工具制造有限公司

A balance method of energy efficiency and spectral efficiency for ultra-dense deployment of heterogeneous networks in micro base stations

The invention discloses an energy efficiency and frequency spectrum efficiency balance method for a micro base station super dense disposition heterogeneous network. The method comprises steps that 1), network model construction, network bandwidth division and frequency spectrum use mode determination are carried out; 2), a signal to noise ratio obtained through association of a mobile user and a macro base station and a signal to noise ratio obtained through association of the mobile user and a micro base station are calculated; 3), a statistics averaging method is utilized to calculate association probability of the mobile user and a nearest neighbor micro base station and an average throughput of a downlink during association of the mobile user and the macro base station and the micro base station; 4), frequency spectrum efficiency and energy efficiency of the network are calculated; and 5), an optimization model for maximizing energy efficiency is established. The method is advantaged in that the method can be applied to a traditional cellular network to realize stable evolution, rapid disposition in a needed macrocellular scene can be realized, network energy efficiency is maximized on the condition that minimum frequency spectrum efficiency and minimum user throughput are satisfied, network capacity is substantially improved, and user service quality is guaranteed.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Evolution system compatible with wimax system in different frequency bands, frame and generation method thereof

An evolution system, frame compatible with diverse frequency range Wimax systems and a production method thereof are disclosed, sub-carrier wave and circulation prefix of the compatible Wimax system are the same as each other, number N of the evolution system IFFT is determined to be larger than or equal to sum of numbers of IFFTs corresponding to each compatible Wimax system; in accordance with the number and spacing of the sub-carrier wave of the Wimax system, transmission rate of the evolution system is obtained; data points of the signal are transmitted according to the transmission rate as well as coded and modulated; the data points carrying information of diverse frequency range Wimax systems are arrayed at diverse positions of N point IFFT in terms of each system frequency range, these position are not mutually superposed; the arrayed N data points is performed IFFT operation of N point at each time so as to transform to OFDM time frequency symbols, and the circulation prefix having the length same as the Wimax system is added to the OFDM symbols which is then transmitted; a plurality of symbols combine into a frame. The invention enables the terminals of diverse frequency range Wimax systems to be accessible to the evolution system.
Owner:徐州铁手五金工具制造有限公司
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