Open loop transmission pre-encoding processing and detecting method and device and open loop transmission system
An open-loop transmission and processing method technology, applied in the field of communication, can solve the problems that the precoding matrix is not applicable, the open-loop transmission and feedback scheme is not given, and the precoding matrix cannot match the channel state well.
Active Publication Date: 2014-03-12
DATANG MOBILE COMM EQUIP CO LTD
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[0004] However, in scenarios such as high-speed motion, the channel information changes rapidly, and the precoding matrix fed back by the receiving end cannot well match the channel state transmitted using the precoding matrix, which makes the fed back precoding matrix inapplicable. Therefore, In the case of open loop, it is difficult to guarantee the performance of the transmission
In Rel-10 (Release 10, version 10), in the transmission mode based on UE-specific reference signals (UE-level reference signal) demodulation, no specific open-loop transmission and feedback scheme is given
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[0031] The embodiment of the present invention provides an open-loop transmission precoding processing and detection method, device, and open-loop transmission system. Before sending a signal, the transmitting end determines the precoding matrix according to the used resource block number, and passes the determined precoding matrix. The coding matrix processes the transmitted signal, thereby reducing the influence of channel fading on signal performance, improving the effectiveness or / and reliability of information transmission, and improving the transmission performance of open-loop transmission.
[0032] Such as figure 1 As shown, the open-loop transmission precoding processing method provided by the embodiment of the present invention includes:
[0033] Step S101: Determine a precoding matrix according to the number of the resource block used;
[0034] Step S102: Perform precoding processing on the transmitted signal through the determined precoding matrix;
[0035] Step S103: Sen...
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Disclosed in the present invention are a precoding processing and detection method and device for open-loop transmission, as well as an open-loop transmission system, relating to the field of communication technology. The embodiments in the present invention provide a technical solution that, before transmitting a signal, a transmitting end determines a precoding matrix according to the used resource block numbers, and processes the transmitted signal with the determined precoding matrix, so as to reduce the impact on signal performance of channel fading, increase the effectiveness or / and reliability of information transmission, and improve the transmission performance of the open-loop transmission.
Description
Technical field [0001] The present invention relates to communication technology, in particular to an open-loop transmission precoding processing and detection method, device and open-loop transmission system. Background technique [0002] MIMO (Multiple-Input Multiple-Output, multiple-input multiple-output) system uses multiple transmitting and receiving antennas, and uses the signal's space, time, and frequency domain joint processing to obtain rate, diversity, and array gain. In the MIMO system, if the transmitter can know the channel information, the transmitted signal can be optimized according to the channel characteristics to improve the reception quality and reduce the complexity requirements of the receiver. In actual systems, feedback methods of quantized channel information are generally used to reduce feedback overhead and feedback delay. [0003] Generally, in a multi-antenna system based on linear precoding, the receiving end selects a suitable precoding matrix index...
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IPC IPC(8): H04B7/04
CPCH04B7/04
Inventor 荆梅芳张然然苏昕拉盖施丁昱
Owner DATANG MOBILE COMM EQUIP CO LTD