RussianPatents.com
|
Signal transfer method (variants) and device for realization thereof (variants). RU patent 2289203. |
|
FIELD: radio engineering, in particular, signal transfer method (variants) and device for realization thereof (variants), possible use, for example, in cellular radio communication systems during transmission of information signal in direct communication channel from backbone station to mobile station. SUBSTANCE: technical result is achieved due to correction of spectrum of copies of information signal being transferred, transferring copies of information signal from each adaptive antenna array in each effective transmission direction, estimating transfer functions of direction transmission channels on basis of pilot signals transferred from each antenna element, on basis of pilot signals for distributed transmission, sent from each adaptive antenna array in each one of effective transmission directions, and also combining two given estimates. EFFECT: increased efficiency of transmission of information signal in direct communication channel, and, therefore, maximized quality of receipt of information signal at mobile station. 5 cl, 10 dwg
|
High frequency system and method for exchanging packet data / 2286030 Each high frequency ground station contains at least one additional high frequency receiver for "surface to surface" communication and at least one additional "surface to surface" demodulator of one-tone multi-positional phase-manipulated signal, output of which is connected to additional information input of high frequency controller of ground station, and input is connected to output of additional high frequency "surface to surface" receiver, information input of which is connected to common high frequency receiving antenna, while control input is connected to additional control output of high frequency controller of ground station. |
Spatial-temporal code with non-zero complex weighing for transmission by multiple antennas / 2276463 Method and device provide for expansion of space-time block code N×N' to space-time block code M×M', where M>N, with utilization of leap-like alternation of symbols phase in space-time block code N×N', to make it possible to transfer space-time block code from distributed antennas in amount, exceeding N'. |
Distributed system of intelligent antennas / 2264010 Proposed distributed system of intelligent antennas has N antennas, N radio-frequency transceivers, main frequency band digital signal processor in base station of wireless communication system, feeders, and data bus; N antennas and N radio-frequency transceivers are grouped to obtain a number of radio-frequency transceiver groups disposed at different consistent-reception locations of base station, including different buildings or different floors of one building. |
Distributed system of intelligent antennas / 2264010 Proposed distributed system of intelligent antennas has N antennas, N radio-frequency transceivers, main frequency band digital signal processor in base station of wireless communication system, feeders, and data bus; N antennas and N radio-frequency transceivers are grouped to obtain a number of radio-frequency transceiver groups disposed at different consistent-reception locations of base station, including different buildings or different floors of one building. |
Spatial-temporal code with non-zero complex weighing for transmission by multiple antennas / 2276463 Method and device provide for expansion of space-time block code N×N' to space-time block code M×M', where M>N, with utilization of leap-like alternation of symbols phase in space-time block code N×N', to make it possible to transfer space-time block code from distributed antennas in amount, exceeding N'. |
High frequency system and method for exchanging packet data / 2286030 Each high frequency ground station contains at least one additional high frequency receiver for "surface to surface" communication and at least one additional "surface to surface" demodulator of one-tone multi-positional phase-manipulated signal, output of which is connected to additional information input of high frequency controller of ground station, and input is connected to output of additional high frequency "surface to surface" receiver, information input of which is connected to common high frequency receiving antenna, while control input is connected to additional control output of high frequency controller of ground station. |
Signal transfer method (variants) and device for realization thereof (variants) / 2289203 Technical result is achieved due to correction of spectrum of copies of information signal being transferred, transferring copies of information signal from each adaptive antenna array in each effective transmission direction, estimating transfer functions of direction transmission channels on basis of pilot signals transferred from each antenna element, on basis of pilot signals for distributed transmission, sent from each adaptive antenna array in each one of effective transmission directions, and also combining two given estimates. |
Method for using generation of polar pattern and distribution during transmission in closed contour in multi-beam antenna system / 2321950 When controlling a multi-beam antenna system for a downstream line of wireless communications, generation of polar pattern and signaling of distribution during transmission in closed contour are combined, each beam signal is adjusted at transmitter on basis of check connection from wireless communication mobile station in such a way, that signals received by wireless communication mobile station may be coherently combined. |
Channel estimation method and radio communication system related to it / 2322759 In accordance to the method, in straight direction, beam is created by a set of antennas, and at least one vector is created for beam generation, subject to application for connection of at least one base station to at least one mobile station, is defined by at least one client station and from at least one client station to at least one base station information is transmitted, which contains information about aforementioned at least one beam generation vector. In accordance to the invention, at least one base station transmits information about beam generation vector used for connection of at least one base station to at least one client station, to at least one client station, on basis of which at least one client station estimates the channel. |
Device and method for frequency-time-space block coding for capacity improvement / 2337483 Invention concerns data transfer, particularly frequency-time-space block coding in a transmitter with three transmitting Tx antennae. Input symbol sequence is transferred by three Tx antennae according to permutation method via selected transmission matrix. |
Spatial processing using control matrices for pseudorandom transmission control in multi-antennae communications system / 2351070 Present invention pertains to communication techniques. The transmitting object carries out spatial processing using control matrices, so that data transmission is held in a set of "effective" channels, formed on the real channel used for transmitting data, and control matrices, used for PRTS. Control matrices can be formed by sampling a base matrix, which can be a Walsh or Fourier matrix. Different combinations of scalars are then chosen, each combination of which consists of at least one scalar, of at least row of the base matrix. Each scalar can be a real or complex value. Different control matrices are formed by multiplying the base matrix by each of the different combinations of scalars. Control matrices are different transpositions of the base matrix. |
Device and method for beams shaping in cdma communication system / 2354050 Invention is related to device and method for beams shaping in telecommunication system of mobile communication CDMA with application of intellectual antennas technology, using specified device and method, multiple fixed beams are shaped in sector, and multiple fixed beams are used to shape traffic channel with narrow beams and common channel with sector beams in one and the same intellectual antenna system, and problem of phases discrepancy is solved in appropriate channels due to differences in time and temperature oscillations without application of complicated correcting technology. Since fixed beams in some area correlate and interact with each other, or considerably weaken due to correlative summation of space vectors of every fixed beam in process of common channels transfer in CDMA system with multiple antennas, then appropriate ratio is established between power of pilot channel and traffic channel in coverage area, and signal-noise ratio is increased for signals received by mobile communication station. As a result of addition of optical transceivers system between system of the main frequency band and system of radio frequency transceivers (TRX), the main frequency band system services more sectors. Radio frequency unit is located in close proximity to antennas, and consumed power is reduced accordingly. |
Mobile communications method, mobile station and base station / 2354053 Separation of transmitting antennas with feedback is applied to special channel of downstream communications line, and separation of transmitting antennas without feedback is applied to control channel of downstream communications line in accordance with high-efficiency method of transmission over upstream communications line. The objective of present invention is to determine how the station with separation during transmission which implements advanced upstream communications line (EUL) should apply separation of transmitting antennas to level 1 confirmation information transmission channels (E-HICH), relative transmission rate channels (E-RGCH) and absolute transmission rate channels (E-AGCH). |
© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English. |