Patent ID: 8526951
Filing Date: 2013-09-03
Classification: H04W

Abstract:
1. A handover system, comprising: a processor configured to receive a notification indicating the start of a handover from a mobile device and one indicating the completion of said handover; to calculate the width of a search window for receiving data from said mobile device to be enlarged when receiving said notification indicating the start of said handover, and the width of said search window for receiving data from said mobile device to be reduced when receiving said notification indicating the completion of said handover; and to discern a direction of enlarging said search window from a direction of a round up if carrying out a process of rounding up a timing of transmitting data to said mobile device, wherein a handover source base station enlarges the search window in a forward direction and a handover destination station enlarges the search window in a backward direction when a forward rounding up to closer spreading code border of a timing of transmitting data is conducted in the mobile device, and the handover source base station enlarges the search window in a backward direction and the handover destination base station enlarges the search window in a forward direction when a backward rounding up to closer spreading code border of a timing of transmitting data is conducted in the mobile station.