Importance

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Abstract

A method for managing the registration of a wireless communication unit in a wireless communication system serving a geographic area divided into cells. Each cell transmits a unique identification signal containing a hierarchy of information regarding the spatial relationship of the cell to other cells of the service area. A wireless communication unit is provided with a masking factor whose value depends on the relative mobility of the unit, communication frequency, and system infrastructure and resources. The unit uses the masking factor to determine a significant portion of each identification signal received by the unit. As the wireless communication unit moves through the service area, this portion of the identification signal of the cell of the unit's location is compared to the corresponding portion of the identification signal of the cell where the unit last registered. The comparison is made to determine whether a preselected relationship exists between the cell of location and the cell of last registration. The wireless communication unit registers only upon determination that the preselected relationship exists, thereby minimizing the number of times the wireless communication unit registers but without sacrificing the efficiency of communication delivery.

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First Claim