METHOD FOR REFERENCE SIGNAL TRANSMISSION, METHOD FOR CHANNEL QUALITY ESTIMATION, MOBILE STATION, BASE STATION AND WIRELESS COMMUNICATION SYSTEM
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United States of America Patent
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app pub date -
Dec 19, 2012
filing date -
Jun 21, 2010
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Abandoned
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Abstract
Reference signal transmission including: according to a first precoding matrix for precoding data sent by multiple antennas of a mobile station, precoding a demodulation reference signal sent with the data; according to a second precoding matrix, precoding a sounding reference signal sent with the data, wherein the different columns and the different rows of the first precoding matrix and the second precoding matrix correspond to different data and different antennas respectively; transmitting the precoded sounding reference signal and precoded demodulation reference signal, wherein the ranks of a matrix composed by arrangement of the whole column vectors of the first and second precoding matrices are greater than or equal with the number of antennas. Under the circumstance of the mobile station equipped with multiple antennas, reducing the occupation of Sounding Reference Signal (SRS) resource during the each antenna channel quality estimation.
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