Patent ID: 8423026
Filing Date: 2013-04-16
Classification: H04W

Abstract:
1. A cell redirection control method comprising steps of: transmitting a response acknowledgement for a connection set-up to a redirected cell in accordance with a redirection instruction that instructs a redirection to another cell controlled by a base station and is transmitted from the base station, in a user terminal, under a situation where the base station controls two or more cells; determining whether a connection to the redirected cell is successful within a range of a maximum number of retransmissions of a hybrid automatic repeat request, in the user terminal; performing a reverting process for reverting back to an originating cell when the connection to the redirected cell fails, in the user terminal; and transmitting from the base station in advance an uplink resource assignment for the originating cell to the user terminal in preparation for the redirection failure, wherein the reverting process for reverting back to the originating cell is performed using the uplink resource assigned in advance.