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Interference suppression method and base station

A technology of interference suppression and interference noise, which is applied in the field of communication, can solve the problem of high construction cost of replacing antennas, and achieve the effect of reducing station cost and interference

Active Publication Date: 2020-11-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the interference of the atmospheric waveguide is usually from the top to the bottom (that is, from the sky to the base station), at present, the interference is usually reduced by adjusting the downtilt angle of the base station. Antenna construction costs are high

Method used

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  • Interference suppression method and base station
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  • Interference suppression method and base station

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Embodiment Construction

[0136] The present application provides an interference suppression method and a base station, which can realize beam-level interference detection and further beam-level interference suppression, can effectively reduce atmospheric waveguide interference, do not need manual adjustment, and reduce the cost of on-site.

[0137] Such as figure 1 As shown, it adopts TYPE2 (type 2) time division duplexing (time division duplexing, TDD) frame structure (5ms conversion interval) in the TD-LTE system, and the special subframe of this frame structure includes three special time slots: DwPTS, GP (Guard time slot) and UpPTS; DwPTS transmits the primary synchronization signal (primary synchronization signal, PSS) in the downlink synchronization signal of the cell, the physical control format indicator channel (physical control format indicator channel, PCFICH), and the physical downlink control channel (physical downlink control channel, PDCCH), physical HARQ indication channel (PHICH), ph...

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Abstract

The invention discloses an interference suppression method and a base station, which can realize beam-level interference detection so as to realize beam-level interference suppression, can effectivelyreduce atmospheric waveguide interference, do not need manual adjustment and can reduce the on-station cost. The method provided by the invention comprises the following steps: determining M channelstate information (CSI) beams, wherein the interference noise power of the DMRS pilot signal carried by each of the M CSI beams is greater than a first preset value, the interference noise power of the SRS pilot signal carried by each of the M CSI beams is greater than a second preset value, the M CSI wave beams are wave beams on the same layer on the horizontal plane, the wave beams on the same layer comprise N CSI wave beams, and M and N are positive integers; and if the ratio of M to N is greater than a third preset value, not scheduling and sending N CSI beams included in the same layer ofbeams.

Description

technical field [0001] The present application relates to the communication field, and in particular to an interference suppression method and a base station. Background technique [0002] Atmospheric waveguide refers to the atmospheric space that can make electromagnetic waves return and propagate in a zigzag manner. The atmospheric space can be close to the ground, the upper wall is the stratification of the atmosphere, and the lower wall is the earth's surface; it can also be suspended, and the upper and lower walls are the stratification of the atmosphere. The appearance of atmospheric ducts is determined by meteorological conditions. Generally, it is easy to form atmospheric ducts in the atmosphere when the weather is stable and clear after rain in summer. In coastal areas, when the dry hot air mass on the land moves to the sea, it is also easy to generate atmospheric guided waves. Atmospheric ducts generally occur more in low and middle latitudes, especially in coast...

Claims

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Application Information

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IPC IPC(8): H04B7/0408H04B7/0426H04B7/06H04W52/24H04W72/04H04W72/08
CPCH04B7/0408H04B7/043H04B7/0617H04B7/0626H04W52/243H04W72/046H04W72/541H04W72/542H04B7/086H04J11/005H04L5/0023H04L5/0048H04L5/0051H04L5/0073H04J11/0073H04J11/0076H04B17/336H04W16/28
Inventor 杨勇王维新孙铭扬
Owner HUAWEI TECH CO LTD
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