Network management system, wireless coverage control method, and wireless coverage control program

Abstract

A network management system is provided with: a wireless channel quality information gathering means for gathering, from mobile terminals connected to the mobile communication network, wireless channel quality information which includes information indicating the wireless channel quality measured at the mobile terminals and indicating the quality of the wireless channel between two or more wireless cells; a coverage evaluating means for evaluating the coverage of a wireless cell, based on wireless channel quality information aggregated for each wireless cell from the wireless channel quality information gathered by the wireless channel quality information gathering means; and a wireless parameter calculating means for calculating the amount of change to the wireless parameters of the wireless base station, based on the evaluation results from the coverage evaluating means.

Description

technical field [0001] The present invention relates to a network management system, a radio coverage control method and a radio coverage control program which enable control of the coverage provided by radio cells formed in a mobile communication network. Background technique [0002] Figure 11 is a schematic diagram illustrating a configuration example of a mobile communication system. Figure 11 The illustrated mobile communication system includes radio base stations 30 , 31 , 32 and mobile terminals 10 , 11 , 12 , 13 and 14 . The wireless base stations 30 , 31 and 32 are connected to a mobile communication core network 60 . The mobile terminals 10, 11, 12, 13, 14 are each connected to any one of these radio base stations via a radio link. In addition, the mobile communication core network 60 is connected to the network management system 50 and the external network 70 . exist Figure 11 In the shown example, wireless cells 80, 81, and 82 are formed around the wireless ...

AI Technical Summary

Problems solved by technology

[0008] In addition, as indicated by the area 108 included in the area 106, at the position where the strength of the pilot signal to be received by one of these neighboring radio cells is inverted, in other words, at the position where the signal to be received by the other radio cell is inverted. In an area around a position (handover area) where the strength of the received pilot signal is higher than that of the pilot signal to be received from the currently connected wireless cell, communication is generally prone to instability because the mobile terminal performs ( Processing (handover) of handover from the wireless base station to which the mobile terminal is connected to another wireless base station to which the mobile terminal is to be connected

When a large number of mobile terminals are located in the handover area, there is a problem that the network may be subjected to excessive load due to this handover process

Images