A long-term evolution uplink baseband data processing device and method
A baseband data, long-term evolution technology, applied in the field of data processing in communication technology, can solve the problems of high storage overhead, slow processing speed, time waste, etc., to reduce data handling time, improve data processing efficiency, and save storage resources Effect
Active Publication Date: 2019-04-23
SANECHIPS TECH CO LTD
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[0003] In existing patent applications, the IDFT / DFT part of the LTE symbol-level processing process mostly uses a single data stream data processing method, for example: Chinese patent application number is 200910251010.1, and the invention name is "LTE system DFT / IDFT twiddle factor control Method, device and DFT / IDFT computing device" file, the disclosed technical solution is the DFT / IDFT processing of a single data stream, and has a dedicated external input and output data memory, the disadvantage of this technical solution is that the processing speed is slow, and Additional input and output data memory is required, and the storage overhead is large
[0004] In addition, in the prior art, in the data processing process, each of the OFDM demodulation module and the IDFT / DFT module has a storage unit, which is stored in the storage unit in the OFDM demodulation module after performing OFDM demodulation on the data, and performs IDFT / DFT on the data. During DFT processing, it is necessary to read from the storage unit of the OFDM demodulation module, write it into the storage unit in the IDFT / DFT module, and then perform IDFT processing on the data; in this way, the time is wasted on the data handling process, and there is no real used in data processing
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0053] figure 1 It is a schematic diagram of the composition and structure of an uplink baseband data processing device in the long-term evolution of the present invention, such as figure 1 As shown, the device includes a data storage module 11 and a balanced IDFT / DFT module 12; wherein,
[0054] The data storage module 11 is used to store the received demodulation data, channel estimation and frequency offset estimation data in time sequence, and open all read-write ports of itself to the balanced IDFT / DFT module 12 when the storage is completed;
[0055] The equalization IDFT / DFT module 12 is used to simultaneously read more than two channels of demodulation data, channel estimation and frequency offset estimation data from the data storage module 11 according to the received UE parameters, and perform equalization processing and I...
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The invention discloses a long-term evolution uplink baseband data processing device and method. The method includes: storing received demodulation data, channel estimation and frequency offset estimation data in sequence, and opening all read-write ports when the storage is completed; Read more than two channels of demodulation data, channel estimation and frequency offset estimation data at the same time, perform equalization processing and IDFT processing on each channel of data, and output the processing results. Through the technical scheme of the invention, the data processing time can be greatly shortened, and the data processing efficiency can be improved.
Description
technical field [0001] The present invention relates to the field of data processing in communication technology, in particular to an uplink baseband data processing device and method in Long Term Evolution (LTE). Background technique [0002] The uplink baseband data processing process in LTE has strict requirements on the delay limit, especially in the uplink symbol-level processing process, which has always been the focus of research in the industry. Wherein, the LTE uplink symbol-level processing includes: Orthogonal Frequency Division Multiplexing (OFDM) demodulation of antenna data, channel estimation, antenna combination, inverse discrete Fourier transform / discrete Fourier transform ( Inverse Discrete FourierTransform / Discrete Fourier Transform, IDFT / DFT) and other processing processes. [0003] In existing patent applications, the IDFT / DFT part of the LTE symbol-level processing process mostly uses a single data stream data processing method, for example: Chinese pa...
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IPC IPC(8): H04L25/02H04L25/03H04L27/26
CPCH04L25/0204H04L25/022H04L25/03159H04L27/2657H04L27/26526
Inventor 史光明
Owner SANECHIPS TECH CO LTD