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Interference processing method and device

A processing method and processing method technology, applied in the direction of electrical components, orthogonal multiplexing systems, multiplexing communications, etc., can solve the problems of poor interference processing methods and high complexity of interference processing, and avoid a large amount of calculation Effect

Active Publication Date: 2019-04-30
SANECHIPS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the interference processing method and device provided by the embodiments of the present invention can at least partially solve the problems of poor interference processing methods or high interference processing complexity

Method used

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  • Interference processing method and device

Examples

Experimental program
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example 1

[0104] Based on the interference processing method and / or interference processing device provided in the foregoing embodiments, this example proposes a processing method for network-assisted interference elimination and suppression.

[0105] The methods provided by this example include:

[0106] 1. Distinguish the interference intensity of the local cell and the adjacent cell, and perform adaptive processing in the IRC mode and the IC mode according to the interference intensity of the adjacent cell. If the user equipment (User Equipment, UE) encounters interference from a strong neighbor cell (the interference power of a strong neighbor cell exceeds the power of the current cell), and the sum of the number of layers to be detected by the cell and all strong neighbor cells is greater than that of the receiver The maximum number of layers that can be detected, and the joint interference processing of IRC mode and IC mode is enabled; when the UE encounters interference from mult...

example 2

[0123] According to the power comparison between neighboring cells and this cell, taking the maximum layer number 2 detectable by the receiver as an example, the following situations can be used for interference processing:

[0124] If P 1 >P 2 >P 0 , L 0 = 2, that is, there are 2 strong neighbors, and the layer number of this cell is equal to the maximum number of layers detectable by the receiver. The processing method is:

[0125] Step 1: Generate interference and noise correlation matrix R for neighbor cell 1 1 , that is, at the cell reference signal (CellReference Signal, RS) resource position, only the component after deleting the signal of the neighboring cell 1 is used for autocorrelation; the following formula is used for autocorrelation.

[0126] R 1 =E[(Y-H 1 RS 1 )(Y-H 1 RS 1 ) H ] wherein, the E is expected; the () H represents the conjugate transpose of the matrix enclosed in parentheses.

[0127] Step 2: To R 1 Do cholesy decomposition and inverse t...

example 3

[0141] In this example, P 1 >P 2 >P 0 , L 0 1 =2, except steps 5, 9, and 10, other steps are the same as Example 2.

[0142] In this example, the steps to replace Step 5 in Example 2 may include: performing interference elimination processing on layer 1 by means of an IC: in Corresponding to the channel estimation and estimated symbols of layer 1, respectively.

[0143] In this example, the step of replacing step 9 of Example 2 may include: using the following formula to whiten the received signal processed in steps 1 to 8:

[0144]

[0145] In this example, the steps to replace step 9 in Example 2 may include: performing 2-layer MIMO detection, including the remaining 1 layer in the 2 layers of the current cell and neighboring cell 1; specifically, use the following formula to obtain the final detection signal of the current cell

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PUM

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Abstract

Disclosed are an interference processing method and apparatus. The method comprises: determining the interference strength of a neighbour cell; according to the interference strength of the neighbour cell, selecting an interference processing method; and using the selected interference processing method to perform interference processing on a received signal. Further provided are a base station and a computer storage medium.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an interference processing method and device. Background technique [0002] In a heterogeneous network including overlapping or cross coverage of multiple network structures, the signal strength received by the receiver from neighboring cells is even greater than the signal strength of the own cell, which obviously will seriously interfere with the accurate detection of received signals by the receiver. In order to combat the interference of neighboring cells, the receiver should adopt Network Assistant Interference Cancellation and Suppression (NAICS) technology to improve the detection quality. Although a variety of NAICS technologies are provided in the prior art, in actual use, it is found that the calculation complexity is high, resulting in a large delay; otherwise, the interference processing effect is not good, and the expected detection quality cannot be ach...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00H04W24/02
CPCH04W24/02
Inventor 邬钢
Owner SANECHIPS TECH CO LTD
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