Optimization of FER settings during soft handoff
AssigneeLucent Technologies Inc.
InventorsModris Olgerts Allen Baum, Edward Fredrick Berliner, Roy Herbert Durdik, Eshwar Pittampalli
Life of this patent
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Abstract
The performance of a wireless telecommunications system is enhanced by the exchange of frame error rate (FER) setting data between base stations and an FER control system within a selection/distribution unit. This exchange occurs when radio facilities from other base stations are added to a call during a soft handoff procedure.
Claims9
In a wireless telecommunications system including a mobile switching center with a selection/distribution unit (SDU), a method for reconciling frame error rates among base stations comprises:
- receiving in the SDU a frame error rate (FER) setting a threshold at or above which a FER for a call is maintained, from a first base station;
- receiving in the SDU a FER setting from a second base station;
- determining a least restrictive FER setting;
- and
- applying the least restrictive FER setting to a call.
A wireless telecommunications system, comprising:
- a controller receiving a FER setting from each base station involved in a soft handoff procedure for a given call, said FER setting for a base station being a threshold at or above which a FER for a call is maintained, and said controller determining a least restrictive FER setting from among the received FER settings as a desired FER setting for the given call.
A method of establishing a frame error rate (FER) setting for base stations during a soft handoff procedure, comprising:
- receiving a FER setting from each base station involved in a soft handoff procedure for a given call, said FER setting for a base station being a threshold at or above which a FER for a call is maintained;
- determining a least restrictive one of the received FER settings as a desired FER setting for the given call;
- and
- instructing each base station involved in the call handoff procedure for the given call to apply the desired FER setting to the given call.
Dependencies are inferred from the claim text.