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Interference suppression method, device and system

A technology for interference suppression and adjacent cell interference, applied in orthogonal multiplexing systems, access restrictions, electrical components, etc., and can solve problems such as interference

Active Publication Date: 2020-12-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these scheduling restrictions can only avoid PDSCH transmission on some PRBs, but in order to ensure backward compatibility, downlink control information such as Physical Downlink Control Channel (English full name: Physical Downlink Control Channel, English abbreviation: PDCCH) will still be transmitted in the Edge PRBs, the interference between these downlink control information and PUCCH still exists

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  • Interference suppression method, device and system
  • Interference suppression method, device and system
  • Interference suppression method, device and system

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Embodiment Construction

[0224] In order to make the description of the following embodiments clear and concise, a brief introduction of related technologies is first given:

[0225]In the LTE system or the long-term evolution-advanced (English full name: LTE advanced, English abbreviation: LTE-A) system, the downlink multiple access method usually adopts orthogonal frequency division multiple access (English full name: orthogonal frequency division multiple access). access, English abbreviation: OFDMA) mode. The downlink resources of the system are divided into orthogonal frequency division multiplexing (English full name: orthogonal frequency division multiplexing, English abbreviation: OFDM) symbols in terms of time, and divided into subcarriers in terms of frequency. According to the LTE standard, a radio frame includes 10 subframes, each subframe is 1 ms long, and the subframes of each radio frame are numbered according to 0-9. A subframe contains two time slots (English: slot). In the case of c...

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Abstract

Embodiments of the present invention provide an interference suppression method, device and system to suppress interference between uplink and downlink signals and improve communication quality. The method includes: the first base station determines the control channel indication information of the first cell, the first cell is any cell in the cell managed by the first base station, and the control channel indication information includes at least one of the following information Information: the control channel indication information of the opposite direction transmission frequency band interfered by the adjacent cell in the first cell, and the control channel indication information of the opposite direction transmission subframe interfered by the adjacent cell in the first cell; the first The base station sends the control channel indication information to a second base station, where the second base station is a base station of the neighboring cell. The invention is applicable to the field of wireless communication.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an interference suppression method, device and system. Background technique [0002] In the existing long term evolution (full name in English: long term evolution, English abbreviation: LTE), time-frequency resources are generally configured statically, and uplink signals or downlink signals are uniformly transmitted in the entire network at the same time. For example, for a time division duplex (English full name: time division duplexing, English abbreviation: TDD) system, usually all base stations in the entire network use the same uplink and downlink subframe ratio. In this way, if figure 1 As shown, at the downlink moment, the interference received by the user equipment (full name in English: user equipment, English abbreviation: UE) in a certain cell comes from downlink signals sent by other base stations; or, as figure 2 As shown, at the uplink moment, the ...

Claims

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Application Information

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IPC IPC(8): H04W16/10
CPCH04W16/10H04W72/541H04J11/005H04W48/12H04W48/16
Inventor 张莉莉理查德·斯特林-加拉赫
Owner HUAWEI TECH CO LTD