METHODS, A NETWORK NODE AND A WIRELESS DEVICE FOR SUPPORTING HANDOVER IN A CELLULAR COMMUNICATIONS NETWORK

摘要

Methods in, and a network node (130) and a wireless device (120), for supporting a handover of a wireless device (120) from a serving cell (115) being served by a serving base station (110) to a candidate cell (116) being served by a candidate base station (111). The network node (130), the serving base station (1 10) and the candidate base station (111) are comprised in a cellular communications network (100). The network node determines (501, 801 ) a respective value of one or more parameters for affecting a range for soft handover. The range of soft handover is applied by the wireless device (120) to determine if the candidate cell (116) is a subject for soft handover. At least one respective value of the one or more parameters is determined based on output power of a transmitter of the serving base station (110) for serving the serving cell (115) and/or of a transmitter of the candidate base station (111) for serving the candidate cell (116). The network node provides (502, 802) a sending of the respective value of the one or more parameters to the wireless device (120).