Patent ID: 7263358

Claim:
A method for detecting ping-pong handover effect of a cellular network, comprising: collecting network traffic statistic data of a plurality of items, wherein each of the items corresponds to a state change of a plurality of mobile units within cells of the cellular network, wherein the items include handover between a first cell and a second cell of the cells and at least one of mobile terminating call (MTC) and mobile originating call (MOC) within the first and second cells; determining whether a plurality of criteria are met according to the network traffic statistic data; and detecting the ping-pong handover effect between the cells according to a result of the determining step; wherein the criteria comprise comparing a first parameter with a first threshold and comparing the handover from the first cell to the second cell with a second threshold, wherein the first parameter is defined according to the handover from the first cell to the second cell and at least one of the MTC and MOC within one of the first and second cells; wherein the criteria further comprise the handover from the first cell to the second cell is symmetric to that from the second cell to the first cell, and the first parameter is symmetric to a first reverse parameter defined according to the handover from the second cell to the first cell and at least one of the MTC and MOC within one of the first and second cells.