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PENALTY OF CELL RESELECTION FOR A WIRELESS DEVICE

  • US 20040162074A1
  • Filed: 02/13/2003
  • Published: 08/19/2004
  • Est. Priority Date: 02/13/2003
  • Status: Active Grant
First Claim
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1. An improved method for serving cell reselection by a mobile unit in a Hierarchical Cell Structure (HCS) wireless communications system, each cell in the HCS wireless communications system having an assigned HCS priority, the mobile unit comprising a Radio Resource Control (RRC) used to establish at least a radio bearer for receiving system information transmitted from the serving cell to the mobile unit when the mobile unit is within a service area of the serving cell, the method comprising:

  • if the HCS priority of the serving cell equals the HCS priority of a candidate cell and the measured signal quality of the candidate cell is greater than the sum of a measured signal quality of the serving cell plus a system information supplied offset between the serving and the candidate cell plus a system information specified hysteresis value for the serving cell, starting a timer to apply a temporary offset to signal quality measurements of the candidate cell, the adjusted signal quality measurements used for ranking that candidate cell for reselection.

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