What is a handover questionnaire?

Answer 1

The British English term for transferring a cellular call is handover, which is the terminology, standardized by 3GPP within such European originated technologies as GSM and UMTS. Main purpose is to maintain seamless service. Mobile telephone network automatically transfer a call from radio channel in one cell to radio channel in another cell as the subscriber move cell boarders. This is called "call handover". Why we need handover (handoff) · when the Subscriber is moving away from the area covered by one cell and entering the area covered by another cell the call is transferred to the second cell in order to avoid call termination when the phone gets outside the range of the first cell · when the capacity for connecting new calls of a given cell is used up and an existing or new call from a phone which is located in an area overlapped by another cell, is transferred to that cell in order to free-up some capacity in the first cell for other users who can only be connected to that cell · non-CDMA networks when the channel used by the phone becomes interfered by another phone using the same channel in a different cell the call is transferred to a different channel in the same cell or to a different channel in another cell in order to avoid the interference · non-CDMA networks when a fast-traveling user connected to a large umbrella-type of cell the call may be transferred to a smaller macro cell or even to a micro cell in order to free capacity on the umbrella cell for other fast-traveling users and to reduce the potential interference to other cells or users. · CDMA networks a soft handoff induced in order to reduce the interference to a smaller neighboring cell due to the "near-far" effect even when the phone still has an excellent connection to its current cell; Network components involved 01. Mobile Station 02. Base Station Subsystem (BTS, BSC) by: Ranga Katukoliha