Method and system for dynamically updating a handover-scan-list maintained by a base station

摘要

Disclosed herein is a method and corresponding system for dynamically updating a handover-scan-list maintained by a base station. In an example communication system comprising a first base station arranged to serve user equipment devices (UEs) on one or more carrier frequencies and a second base station arranged to maintain a handover-scan-list of carrier frequencies to which UEs served by the second base station can hand over, the first base station may process handover of a UE from being served by the first base station to being served by the second base station. During processing of the handover, the first base station may provide for receipt by the second base station a message indicating at least one carrier frequency on which the first base station is operating. In response to receiving the message, the second base station may then update the handover-scan-list to include the at least one carrier frequency.

主权项

1. A method comprising:
while a user equipment device (UE) is engaged in a handover process in which the UE hands over from being served by a first base station to being served by a second base station, the second base station receiving an indication, provided by the first base station, of at least one carrier frequency on which the first base station is operating; responsive to the received indication being that the first base station is operating on the at least one carrier frequency, the second base station adding the at least one carrier frequency to a handover-scan-list of carrier frequencies maintained by the second base station, the handover-scan-list being a scan-list that the second base station provides, to at least one UE served by the second base station, to cause the at least one UE to scan in accordance with the handover-scan-list, thereby facilitating engagement by the at least one UE in inter-frequency handover; and the second base station providing the handover-scan-list, including the added at least one carrier frequency, to the at least one UE to cause the at least one UE to scan in accordance with the provided handover-scan-list, thereby facilitating engagement by the at least one UE in inter-frequency handover.