Patent ID: 7693114

Claim:
A method of cell switching in a mobile communication system comprising at least one base station, each base station corresponding to one-or-more sectors, the method performed by the at least one base station comprising: setting an identifier parameter associated with a first sector in an active set to ‘000’; setting a next identifier parameter to the identifier parameter of previous sector in the active set that supports the packet data communication, if corresponding control parameter is set to a first level (‘1’) and there are no other sectors between a present sector corresponding to the identifier parameter and a previous sector that support the packet data communication; setting the identifier parameter to the identifier parameter of previous sector in the active set that supports the packet data communication, if corresponding control parameter is set to a first level (‘1’) and all sectors between the present sector corresponding to the next identifier parameter and a previous sector in the active set that support packet data communication have corresponding control parameter set to the first level; and otherwise set the identifier parameter to a value different than the identifier parameter corresponding to previous sector that supports the data packet communication in the active set.