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A method for interference elimination between cooperative cells

An inter-cell interference and cooperative technology, which is applied to communication between multiple stations, electrical components, and error prevention/detection through diversity reception, can solve problems such as high complexity and unfavorable system implementation, and achieve increased capacity , improve interference information, and improve the effect of multi-user diversity gain

Inactive Publication Date: 2008-02-20
ZTE CORP
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Problems solved by technology

However, the complexity of such methods is generally high, which is not conducive to the realization of practical systems.

Method used

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  • A method for interference elimination between cooperative cells
  • A method for interference elimination between cooperative cells
  • A method for interference elimination between cooperative cells

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Embodiment Construction

[0032] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] The present invention designs a new base station device on the basis of the original base station, which is called a base station coordinator, and its network topology is shown in FIG. 2 . The base station coordinator can monitor users in adjacent cells, when the level is higher than the preset threshold (the threshold can be set during the system planning process, generally it should be lower than the soft handover threshold set by the system: That is, when the user's interference has a relatively obvious effect on adjacent cells, but handover is not necessary), it is identified as a user with strong interference to the desired cell. Strong interfering users are divided into two types: A and B. The cell where the interfering user of type A is located is controlled by the same base station control device as the ...

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Abstract

The utility model discloses an interference elimination method in cooperative community, which comprises an S102, a coordinator of a base station getting characteristic information of users of strong interference; an S106, a coordinator of a base station and the base station performing interference elimination based on the information and the characteristic information of users of strong interference. The utility model has advantages of making best use of interference information, improving diversity gain of multi-user, and improving the system uplink capacity as the method considers the interference information elimination between inter-cells.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for eliminating interference between cooperative cells. Background technique [0002] At present, the core technologies of broadband wireless mobile communication systems include DS-CDMA (Direct Sequence Code Division Multiple Access, Direct Spread Code Division Multiple Access), MIMO (Multiple input Multiple output, spatial multiplexing multiple input multiple output) and OFDM (Orthogonal Frequency Division Multiplexing , Orthogonal Frequency Division Multiplexing) and so on. The air interface evolution technology of 3GPP2 (The Third Generation Partnership Project 2, 3rd Generation Partnership Project 2) is called AIE (Air Interface Evolution), which is one of them. The aspect has been optimized, and it can well support various types of data packet applications in the mobile communication network. Its work is divided into two stages, Phase1 and Phase2. Phase1 compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04W72/12H04L1/06
Inventor 张宇眉辛雨张欣杨大成
Owner ZTE CORP
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