Method for regulating pilot channel transmitting power

Abstract

This invention discloses an adjusting method for pilot channel emission power including: a mobile station moves in a region and reports the current measured pilot channel RSCP and Ec / Io value to the network side, which decides the emission power value of the current needed pilot channel based on the value to decide the emission power of the final needed adjusted pilot channel and adjusts it, which can decide the emission power of the base station pilot channel accurately so as to control the communication region of the mobile station to guarantee the communication quality of local areas in a mobile sphere.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for adjusting transmission power of a pilot channel in a wireless communication system. Background technique [0002] CDMA (Code Division Multiple Access) technology is an advanced wireless spread spectrum communication technology used in digital cellular mobile communication in recent years. It can meet the needs of operators for large-capacity, cost-effective and efficient mobile communication in recent years. The CDMA network is a cellular mobile phone network, which is composed of many cells. The access network mainly includes a base station (Base Station referred to as "BS") and a base station controller (BaseStation Controller, referred to as "BSC"). There are transceivers in the base station, which are responsible for the connection with the user terminals in the coverage area; the base station controller is responsible for various control functions...

AI Technical Summary

Problems solved by technology

Due to the complex wireless propagation environment, pilot signals from other cells will interfere with this cell. In the prior art, link budget or system simulation cannot accurately determine the power of the pilot channel of this cell, especially for indoor coverage. The complexity of the indoor propagation model is very high, and it is more difficult for the link budget or coverage prediction simulation to accurately control the power of the pilot channel. The pilot power may be set too large or too small, so the coverage of the pilot signal cannot be accurately controlled. , it cannot control the communication range of the mobile station in the cell well

[0006] It has been mentioned above that CDMA is a self-interference system. If the pilot power is set too small, the coverage of the cell will be small, and the area where the mobile station can communicate is limited. In addition, the power of other channels may also be set too small accordingly. The downlink quality of the station is degraded, which affects the communication quality

If the pilot power is set too high, it will cause interference to adjacent base stations and mobile stations, affect the communication of other users, and also bring additional power loss, wasting system resources

In addition, if the wireless network environment changes, the calculation of link budget or system simulation to re-adjust the power is large and time-consuming

In this way, the wireless network cannot reach the optimal state quickly, and inappropriate power settings will lead to a decrease in system performance

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