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Method and device for interference coordination

An interference coordination and interference technology, applied in the communication field, can solve problems such as cell enhanced control channel interference, and achieve the effect of ensuring performance and solving interference problems.

Active Publication Date: 2019-06-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for interference coordination, which can solve the problem that the enhanced control channel of a cell is interfered by adjacent cells, and ensure the performance of the enhanced control channel of each cell

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  • Method and device for interference coordination

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Embodiment 1

[0040] An embodiment of the present invention provides a method for interference coordination, such as figure 1 As shown, the method includes:

[0041] 101. Generate enhanced control channel scheduling indication information.

[0042] Wherein, the enhanced control channel scheduling indication information includes first scheduling indication information and / or second scheduling indication information. Wherein, the first scheduling indication information is used to identify the PRB corresponding to the interfered enhanced control channel in the cell; the second scheduling indication information is used to indicate the transmission power information corresponding to the PRBs of the cell.

[0043] Wherein, the smallest unit of LTE radio resource allocation is a physical resource block (PRB, physical resource block), and a PRB includes 12 adjacent subcarriers in the frequency domain.

[0044] Wherein, the first scheduling instruction information may specifically include the iden...

Embodiment 2

[0062] The embodiment of the present invention provides a method for interference coordination, which can be applied in the heterogeneous network defined by 3GPP LTE-A. In this embodiment, the heterogeneous network belongs to different base stations, but spatially adjacent Cells A and B are taken as an example to describe a specific interference coordination process, such as image 3 shown, including:

[0063] 301. Cell A generates first scheduling indication information.

[0064] Wherein, the first scheduling indication information is used to identify the PRB corresponding to the interfered enhanced control channel in the cell A.

[0065] Wherein, the realization of generating the first scheduling indication information may be realized by the following methods, specifically:

[0066] Detect whether there is interference in the enhanced control channel currently scheduled for the user equipment; if it is detected that there is interference in the enhanced control channel cur...

Embodiment 3

[0083] The embodiment of the present invention provides a method for interference coordination, which can be applied in the heterogeneous network defined by 3GPP LTE-A. In this embodiment, the heterogeneous network belongs to different base stations, but spatially adjacent Cells A and B are taken as an example to describe a specific interference coordination process, such as Figure 4 shown, including:

[0084] 401. Cell A generates second scheduling indication information.

[0085] Wherein, the second scheduling instruction information is used to indicate the transmission power information corresponding to the PRBs of the adjacent cells, and specifically may include the relative narrowband transmission power values ​​corresponding to the PRBs of the cell A and at least one relative narrowband transmission power threshold.

[0086] Wherein, the realization of generating the enhanced control channel scheduling indication information according to the obtained PRB of cell A may...

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Abstract

The invention discloses an interference coordination method and device, relates to the technical field of communication, can solve the interference problem of enhanced control channels between cells, and guarantee the performance of the enhanced control channels of each cell. The present invention includes: generating enhanced control channel scheduling indication information, the enhanced control channel scheduling indication information including first scheduling indication information and / or second scheduling indication information; wherein, the first scheduling indication information is used to identify the cell The PRB corresponding to the interfered enhanced control channel; the second scheduling indication information is used to indicate the transmission power information corresponding to the PRB of the cell; the enhanced control channel scheduling indication information is sent to the adjacent cell, so that The neighboring cell determines, according to the enhanced control channel scheduling indication information, the PRBs in the neighboring cell whose scheduling mode needs to be adjusted. The embodiment of the present invention is applied in the process of interference coordination between adjacent cells.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for interference coordination. Background technique [0002] The heterogeneous network defined in the 3GPP LTE-A standard refers to a network composed of cells using different powers, and these cells include macro eNBs, Pico cells, and the like. [0003] In this network architecture, terminal users need to be able to correctly demodulate the scheduling information from the cell. Usually, these scheduling information are carried in the control channel of the cell. That is to say, the user needs to demodulate the control channel from the cell correctly first. In order to ensure data communication with the cell. In a heterogeneous network, due to the introduction of low-power cells, the interference scenarios in the heterogeneous network are more complicated. For example, the transmit power of the macro base station Macro eNB is 46dBm, while the...

Claims

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Application Information

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IPC IPC(8): H04W28/16
CPCH04L5/0053H04W28/16H04L1/1854H04L1/1812H04L5/0032H04L5/0073H04W72/542H04W72/20H04L1/1893
Inventor 闫志宇薛丽霞
Owner HUAWEI TECH CO LTD