Patent ID: 7263359

Claim:
A CDMA wireless network comprising: a plurality of base stations capable of communicating with a plurality of mobile stations in a coverage area of the CDMA wireless network, wherein a mobile station is capable of handing off the pilot signals from a first base station and a second base station according to at least one of: 1) a dual antenna-based handoff mechanism, wherein the mobile station uses a first antenna for traffic channel signals and a second antenna for a pilot channel signals and wherein the mobile station initiates a handoff operation whenever the pilot strength of a neighboring base station or a neighboring sector of the same base station goes above the T_ADD/T_COMP threshold; and 2) a distance measurement-based handoff mechanism, wherein the mobile station determines the distances to each of a plurality of base stations from which the mobile station receives a pilot signal, and wherein the mobile station adds a pilot signal from a first base station to the active set when the distance to the first base station is less than a DIST_ADD threshold and the mobile station drops a pilot signal from the first base station from the active set whenever the distance to the first base station exceeds a DIST_DROP threshold.