Cochannel interference suppressing method between users and base station thereof

A co-channel interference and inter-user technology, applied in the field of inter-user co-channel interference suppression, can solve the problems of high implementation complexity, low spectrum reuse coefficient, and many signaling interactions between users and base stations, and achieve the goal of reducing the number of feedback bits Effect

Inactive Publication Date: 2008-12-31
SHANGHAI JIAO TONG UNIV +1
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Problems solved by technology

[0010] The purpose of the present invention is to address the deficiencies in the prior art, to provide a method for suppressing co-channel interference between users and its base station, so th

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  • Cochannel interference suppressing method between users and base station thereof
  • Cochannel interference suppressing method between users and base station thereof
  • Cochannel interference suppressing method between users and base station thereof

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Embodiment Construction

[0070] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0071] Such as figure 1 As shown, in the present invention, firstly, the user monitors and detects the downlink signals of a plurality of adjacent cells or sectors, and then makes a judgment on the geographic location of the user in the cell or sector, and periodically or triggers the geographic location information report to the base station; or the user directly reports the measurement information of the monitored and detected downlink signal to the base station periodically or triggeringly, and then the base station makes a judgment on the geographical location of ...

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Abstract

The invention relates to a method for suppressing inter-user cochannel interference in the field of communication technology and a base station thereof, the method includes the steps: a user monitors and tests downlink signals of a cell or a sector and a plurality of adjacent cells or sectors; geographical position information of the user in the cell or the sector is judged to obtain the geographical position information of the user in the cell or the sector; base stations of the adjacent cells or the sectors mutually notify base stations of the adjacent cells or the sectors about the condition of resources occupied by boundary users of the cell or the sector; according to a distribution result, communication among the cells or the sectors is carried out on the resources occupied by the boundary users, if the boundary users in the adjacent cells use the same resource, the resource is redistributed; according to the resource distribution result, an uplink of the user is matched by the base station. While achieving the aim that the inter-user cochannel interference is reduced, the invention has the advantages of high spectrum reuse coefficient, increase of output speed of the boundary user, etc.

Description

technical field [0001] The invention relates to an identification method in the field of communication technology and a base station thereof, in particular to a method for suppressing co-channel interference between users of an uplink FDD-FDMA cellular system and a base station thereof. Background technique [0002] The FDD (Frequency Division Duplex) method is the main duplex method adopted by the cellular system, and its technical feature is that the uplink communication link and the downlink communication link use different frequency bands. In the FDD system, FDMA (Frequency Division Multiple Access) is the most important multiple access method, and its characteristic is that different users use different spectrum resources when accessing the system. At present, OFDM (Orthogonal Frequency Division Multiplexing) technology and SC-OFDM (Single Carrier Orthogonal Frequency Division Multiplexing) technology are the main technologies for realizing FDD-FDMA. The 3GPP organizat...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04Q7/36H04Q7/38H04Q7/30H04W16/02H04W72/04
Inventor 张际罗汉文丁铭刘仁茂戴吉祥
Owner SHANGHAI JIAO TONG UNIV
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