Management of cell re-selection in 3GPP cellular networks and analysis of two challenges of an Iranian Operator

Concerning radio resource management in different generations of cellular networks, the focus upon the function of mobile phones in idle mode as well as the mechanism of cell selection and re-selection procedures should assume great importance. In this paper, based upon the last 3GPP standards together with considering applicable requirements of telecommunication industry in Iran, effective parameters related to cell selection and reselection in GERAN, UTRAN and EUTRAN networks are examined. Then the operation of mobile phones in the borders between home PLMN and roaming PLMN is investigated and Equivalent PLMN feature affection in these areas is discussed. Ultimately, two existing problems related to MCI PLMN are analyzed and some suitable solutions presented. The first issue is related to the problem of cell re-selection in the boarder of MCI PLMN and East Azerbaijan province WLL PLMN. The second issue considers the problem of inter system (GERAN and UTRAN) cell re-selection on the MCI network compared with MTNIrancell Network. In this article, some approaches in order to solve the problems are presented and consequences of practical measures expressed.