Method for recognizing cell-edge users and base station

Abstract

The invention discloses a method for recognizing a cell-edge users and a base station. The method comprises the steps of: sending a measurement configuration message for judging whether user equipment enters or leaves a cell edge to the user equipment; receiving a measurement report of the user equipment; and judging whether the user enters or leaves the cell edge on the basis of the type of the measurement report. In the method disclosed by the invention, even though the network layout is very complex, a threshold value with A3 offset is very easy to configure, the actual wireless position of UE (user equipment) can be determined in real time, and which cell is the strongest adjacent cell of the UE can be reflected.

Description

technical field [0001] Embodiments of the present invention relate to wireless communication, and in particular to a method for identifying a user at the edge of a cell and a base station for inter-cell interference coordination. Background technique [0002] In an LTE (Long Term Evolution) system, the task of inter-cell interference coordination includes managing radio resources so that inter-cell interference is controllable. Almost all inter-cell interference coordination methods need to know whether a UE (User Equipment) is at the edge of a cell. The UE at the center of the cell has a very low probability of interfering with adjacent cells, while the UE at the edge of the cell has a high probability of interfering with adjacent cells. Traditional identification methods based on path loss cannot accurately identify UEs at the cell edge, and thus have a great impact on the actual performance of ICIC (Inter-Cell Interference Coordination). [0003] The mainstream method f...

AI Technical Summary

Problems solved by technology

Simply relying on the path loss to the serving cell is not enough to determine whether the UE is really at the ICIC edge of the cell, and the path loss to the serving cell cannot reflect which cell is the neighbor cell with the strongest received signal for the UE

[0004] figure 1 shows that although UE2 is geographically located at the cell edge, it may not interfere with neighboring cells because the signal is blocked by buildings, so this user cannot be considered as an ICIC cell edge user

Since it is difficult for the serving cell to identify the UE at the edge of the cell based on the path loss, this will have a great impact on the actual performance of ICIC

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