Systems and methods for adjusting mobile-station hard-handoff thresholds based on call type

摘要

A RAN includes a first coverage area and a second coverage. An access terminal, initially engaged in a call via the first coverage area, determines a call type of the call and adjusts, based on the determined call type, one or both of a first value for a first threshold and a second value for a second threshold. While engaged in the call, the access terminal determines that (i) a signal strength of a signal received from the first coverage area is less than the first threshold, and (ii) a signal strength of a signal detected from the second coverage area is greater than the second threshold. In response to making both determinations, the access terminal hands off the call from the first coverage area to the second coverage area.

主权项

1. In a communication system that comprises a radio access network (RAN) having multiple coverage areas for providing wireless service to access terminals, the multiple coverage areas including a first coverage area and a second coverage area, a method carried out by an access terminal that is initially engaged in a call via the first coverage area, the method comprising:
determining a call type of the call and adjusting, based at least in part on the determined call type, one or both of a first value for a first threshold and a second value for a second threshold; making a first determination while engaged in the call, wherein making the first determination comprises making a determination that the access terminal is receiving from the first coverage area a first signal having a signal strength that is less than the first threshold; making a second determination while still engaged in the call, wherein making the second determination comprises making a determination that the access terminal is detecting from the second coverage area a second signal having a signal strength that is greater than the second threshold; and responsive to making the first and second determinations in combination, handing off the call from the first coverage area to the second coverage area.