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Method and device for processing signals

A technology for processing signals and signals, applied in the field of signal processing, can solve problems such as bit error platforms and poor performance, and achieve the effect of improving performance, eliminating interference and/or intersymbol interference

Active Publication Date: 2021-01-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of the Rake receiver is poor when dealing with multiple users, especially when there is a large interference between multiple users, and there may even be a bit error platform

Method used

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  • Method and device for processing signals
  • Method and device for processing signals
  • Method and device for processing signals

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Embodiment Construction

[0044] The technical solution in this application will be described below with reference to the accompanying drawings.

[0045] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (universal mobile telecommunication system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future fifth generation (5th generation, 5G) system or new Wireless (new ra...

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Abstract

The invention provides a signal processing method and device. The performance of a receiver for distinguishing multipath signals of multiple users can be improved. The method comprises the steps: obtaining superposed signals obtained after multipath signals of K transmitters are superposed, wherein the superposed signals comprise n symbols in the time domain, K is larger than or equal to 2, n is larger than or equal to 1, and K and n are integers; carrying out feature extraction and first interference elimination processing on the superposed signals to output a first signal, wherein the feature extraction and first interference elimination are processed through a first neural network; equally dividing the first signal into n second signals, performing second interference elimination processing on the n second signals, and outputting n third signals, wherein the second interference elimination is processed through a second neural network; and according to the channel estimation of the multipath channels of the K transmitters and the n third signals, obtaining an estimation sequence of bit sequences sent by the K transmitters at the n symbols.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method and device for processing signals. Background technique [0002] Peak to average power ratio (PAPR) in non-orthogonal multiple access (NOMA) applications affects user equipment (UE) located at the edge of the cell and transmit power is limited important factor in the performance of the UE. Especially in the application of NOMA in massive machine type communication (mMTC) scenarios, in order to achieve the same The coverage range needs to adopt discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveform. Adopting DFT-s-OFDM will introduce different multipath channels for each user equipment. [0003] Currently, the most common receiver used to process multipath signals is the Rake receiver. The Rake receiver can distinguish the multipath signals of multiple users by using the correlation detector, so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00H04B7/06H04B1/711
CPCH04B1/711H04B7/0626H04J11/0026H04J11/003H04J11/0063
Inventor 徐晨张公正乔云飞李榕王俊
Owner HUAWEI TECH CO LTD