Patent ID: 6185422
Filing Date: 2001-02-06
Classification: H04W

Abstract:
In a telecommunications system having at least one base station transmitting on a plurality of control channels and at least one mobile station, a method of transitioning a mobile station between control channels, said method comprising the steps of:(a) scanning and selecting a control channel of a first type at the mobile station;(b) receiving identifying information over said control channel of a first type, said identifying information including information identifying a control channel of a second type, wherein said control channel of a second type is preferred over said control channel of a first type for operation of the mobile station in the system;(c) determining if a measurement parameter at the mobile station on said control channel of a second type is greater than a threshold level for triggering transition from said control channel of a first type to said control channel of a second type;(d) performing, in response to a positive determination in said step of determining, an access attempt on said control channel of a second type; and(e) if said access attempt is unsuccessful, incrementing said threshold level by a step increment and repeating steps (a)-(e) until said access attempt in step (d) is successful or until said mobile station otherwise is required to move off said control channel of a first type.