Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-05-27
2000-09-12
Cumming, William
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
370320, 370331, 455423, H04Q 720, H04Q 700, H04B 7212
Patent
active
061190055
ABSTRACT:
The system for automated determination of handoff neighbor list uses the data collected from mobile subscriber units to automatically update the handoff neighbor list. The mobile subscriber unit produces Pilot Strength Measurement (PSM) data that is indicative of the relative signal strength measured at the mobile subscriber unit from a plurality of pilot channels. The mobile subscriber unit transmits this data, along with a list of viable pilot channel candidates as determined by the mobile subscriber unit, to the base station serving the existing call. The system for automated determination of handoff neighbor list maintains a data structure that stores data indicative of the number of instances that a pilot channel is recommended, the sum of power levels that were measured by the various mobile subscriber units for these instances. This data is processed to determine a metric for each data structure in the list, with the metric in the present embodiment being a function of the number of occurrences multiplied by a weighting factor summed with the sum of power levels.
REFERENCES:
patent: 5828661 (1998-10-01), Weaver, Jr. et al.
patent: 5852778 (1998-12-01), Labedz
patent: 5889768 (1999-03-01), Storm et al.
patent: 5982758 (1999-11-01), Hamdy
Cumming William
Lucent Technologies - Inc.
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