Method for adjusting cell coverage in communication system, base station and low power node

Abstract

The embodiment of the invention discloses a method for adjusting cell coverage in a communication system, a base station and a low-power node. The method includes: the first device acquires the first communication performance parameters of one or more users among the users served by the first device, and receives the second communication performance parameters of one or more users among the users served by the second device sent by the second device Parameters, the first device and the second device are respectively one of a conventional base station and a low-power node; using the first communication performance parameter to obtain a first threshold and a second threshold not less than the first threshold, and combining the second communication performance parameter with the first The first threshold and the second threshold are compared respectively; when the second communication performance parameter is less than the first coverage adjustment threshold, it is determined that the adjustment method is to reduce the offset value in the current cell coverage expansion scheme of the low-power node; or, when the second When the second communication performance parameter is greater than the second coverage adjustment threshold, it is determined that the adjustment method is to increase the offset value, and the adjustment method is notified to the second device.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of wireless communication, and in particular to a method for adjusting cell coverage in a communication system, a base station, and a low-power node. Background technique [0002] As the demand for data services in the wireless communication network grows, it will be more difficult to support the capacity of data services by deploying additional conventional base stations to perform traditional cell splitting. Therefore, introducing low-power nodes will become a trend of network deployment. A conventional base station refers to a base station with higher transmission power than a low-power node, and its coverage area is relatively large, such as a macro cell (Macro Cell) base station, etc., and its covered cell is also large, such as a macro cell. Low-power nodes are relative to conventional base stations, also known as local cell base stations (Local eNodeB), mainly including, such as...

AI Technical Summary

Problems solved by technology

[0009] Since there may be many low-power nodes in the coverage area of ​​a conventional base station, and the distance between each low-power node and the conventional base station is different, the user density in the coverage area, and the wireless environment are also different, so it is difficult to use a uniform bias value for all low-power nodes. all suitable

For some low-power nodes, the uniformly set bias value may be too low, resulting in low-power nodes serving few users and not fully utilizing the resources of low-power nodes; for other low-power nodes, the uniformly set bias value The bias value may be too high, causing too many users to choose to access the cells covered by low-power nodes. Since the power of the actual received service signal of these users is lower than the received power of the interference signal from the conventional base station, they will be greatly affected. interference, resulting in a decrease in communication quality

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