Signal processing method and device
A signal processing and signal technology, applied in the field of communication, can solve problems such as low signal-to-noise ratio, signal noise interference, etc., and achieve the effect of reducing complexity and consumption delay
Active Publication Date: 2019-12-06
HUAWEI TECH CO LTD
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[0005] When processing the signal, the received signal is amplified, and the noise interference is amplified at the same time, resulting in more noise interference in the forwarded signal, and the signal-to-noise ratio when the user equipment side receives the signal is low
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[0058] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0059] Please refer to figure 1 , which shows a schematic diagram of the network architecture involved in the method provided by the embodiment of the present invention. Such as figure 1 As shown, the network architecture includes a serving cell eNB (Evolved NodeB, evolved base station), an interfering cell eNB, and a relay node. Wherein, the serving cell eNB is a base station that provides services to UE (User Equipment, user equipment), the interfering cell eNB is a base station that interferes with signals adjacent to the serving cell, and the number of interfering cell eNBs is at least one. The number is specifically limited.
[0060] In addition, the relay node refers to a device responsible for signal reception and forwarding....
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The invention discloses a signal processing method and apparatus and belongs to the technical field of communication. The method comprises steps of calculating an IRC matrix on each subcarrier according to a first channel matrix; selecting elements of the same rank in the IRC matrix of each subcarrier, carrying out inverse fast fourier transform of a vector composed of the selected elements to obtain a time domain IRC circular convolution filter; forming a time domain IRC linear convolution filter by rear taps of a first preset number and front taps of a second preset number in the time domain IRC circular convolution filter; and processing time domain sampling points of received signals according to the time domain IRC linear convolution filter. As the linear convolution filter is obtained by capturing taps in the circular convolution filter, and the signals are processed through the linear convolution filter, elapsed taps in signal processing are reduced, and the processed signals can be output only by waiting for the time domain sampling points of the first preset number, thereby reducing the complexity and the dissipative delay of signal processing.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a signal processing method and device. Background technique [0002] With the development of communication technology, there are more and more scenarios where signals need to be forwarded. For example, when the user equipment is in a closed environment such as indoors or in a car, the signal needs to be processed by a relay node in the closed environment, so as to forward the processed signal to the base station. Since the signal processing method affects the signal quality, it is necessary to select an appropriate signal processing method. [0003] The related technology adopts the following method when processing signals: the received signal is amplified by a wireless repeater, and the amplified signal is forwarded to the base station. [0004] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the pr...
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IPC IPC(8): H04L25/03H04L27/26
Inventor 杨非阙程晟徐波
Owner HUAWEI TECH CO LTD