Integrity of pilot phase offset measurements for predicting...

Details Integrity of pilot phase offset measurements for predicting... Integrity of pilot phase offset measurements for predicting...

2006-03-07

2006-03-07

Chin, Wellington (Department: 2664)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S320000, C370S332000, C370S335000, C370S342000, C375S140000, C375S142000, C375S143000, C375S144000, C375S145000, C375S150000, C375S152000

Reexamination Certificate

active

07009947

ABSTRACT:
A high integrity process is provided to apply pilot phase rates to call processing decisions. An estimate or measurement of the rate of change of a pilot's PN phase offset is used to assist in making CDMA call processing decisions. The phase rate is a measure of the rate of change of a pilot's PN phase offset relative to a mobile time reference and is directly related to the multipath environment and movement of the mobile. Both an integrity algorithm to compute an integrity indicator and a technique to apply the integrity indicator to predict future pilot strengths are included.

REFERENCES:
patent: 5799010 (1998-08-01), Lomp et al.
patent: 6229843 (2001-05-01), Lomp et al.
patent: 6389087 (2002-05-01), Heinonen et al.

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