In a wireless communication system, which includes a first base site (101) having an associated controller (130) and a second base site (108), a mobile station (103) responsive to the first and second base site, a method for determining a need to hard handoff a mobile communication signal (107) associated...http://www.google.co.uk/patents/US6075989?utm_source=gb-gplus-sharePatent US6075989 - Method and apparatus for determining a need to handoff a mobile communication signal in a wireless communication system
