DATA TRANSMISSION METHOD AND SYSTEM
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United States of America Patent
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app pub date -
Jan 9, 2015
filing date -
Jul 11, 2012
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Abandoned
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Abstract
A data transmission method and system are provided. The data transmission method includes: transmitting, by a BBU, frequency domain data obtained by performing a multi-antenna MIMO coding, to a RRU via a CPRI; receiving, by the RRU, the frequency domain data transmitted by the BBU, via the CPRI; and performing, by the RRU, an OFDM symbol generation processing on the frequency domain data received via the CPRI, to convert the frequency domain data into time domain data. With this method, a rate of the CPRI can be significantly lowered, and a bandwidth of the CPRI can be dynamically adjusted in the communication system according to the load and the usage of frequency resources, thereby lowering the bandwidth of the CPRI.
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