Handover Success Rate (HOSR)
In cellular telecommunications , the terms handover or handoff refer to the process of transferring an ongoing call or data session from one channel connected to the core network to another channel. The HOSR is the ratio of the number of successful handovers to the number of handover requests. The major purpose of handover is to guarantee call continuity, improve speech quality, reduce cross interference in the network, and thus provide better services for mobile station (MS) subscribers. Types of GSM handover Within the GSM system there are four types of handover that can be performed for GSM only systems: Intra-BTS handover: This form of GSM handover occurs if it is required to change the frequency or slot being used by a mobile because of interference, or other reasons. In this form of GSM handover, the mobile remains attached to the same base station transceiver, but change the channel or slot. Inter-BTS Intra BSC handover: This ...