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Method and system for mitigation of unlisted cell impacts in idle mode of cellular systems

  • US 9,426,685 B2
  • Filed: 08/05/2010
  • Issued: 08/23/2016
  • Est. Priority Date: 07/16/2010
  • Status: Active Grant
First Claim
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1. A method for operating a user equipment, comprising:

  • receiving, by the user equipment, signals from a serving cell and a plurality of neighbor cells, wherein the plurality of neighbor cells include listed neighbor cells that are listed in a neighboring cell list and unlisted neighbor cells that are unlisted in the neighboring cell list;

    storing, by the user equipment, samples of the received signals from the listed neighbor cells and the unlisted neighbor cells;

    performing, by the user equipment, a cell search within the stored samples of the received listed and unlisted neighbor cell signals to identify a first unlisted neighbor cell from among the unlisted neighbor cells, the cell search comprising;

    validating the first unlisted neighbor cell based on a corresponding stored sample from among the stored samples of the received listed and unlisted neighbor cell signals;

    adding the validated unlisted neighbor cell to the neighboring cell list; and

    mitigating interference, caused by the validated unlisted neighbor cell, from the stored samples of the received listed and unlisted neighbor cell signals; and

    repeating, by the user equipment, the cell search for a second unlisted neighbor cell from among the unlisted neighbor cells using the mitigated stored samples.

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