Patent ID: 6782262
Filing Date: 2004-08-24
Classification: H04W

Abstract:
A method of determining a minimum acceptable signal strength in a cell of a cellular radio system with a hierarchical cell structure comprised of a plurality of levels of cells having base stations and mobile stations, said method comprising:assigning to each cell according to a level of said cell within said hierarchical cell structure a category of preference for selection with respect to each other associated cell within the system having either a coextensive, adjacent, contiguous, or overlapping service area; assigning to each associated cell a preselected signal strength threshold as a minimum requirement for radio communication with mobile stations; determining the communication quality in the cell; and adjusting said preselected signal strength threshold of the cell as a minimum signal strength level at which preferred cell will be prioritized over a non-preferred cell for future communication with mobile stations in the cell in accordance with a criteria for said determined quality.