Method and apparatus for reselecting a cell in a network with the hierarchical cell structure
First Claim
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1. A method for selecting and reselecting a cell in a mobile handset, comprising:
- measuring a received signal code power of each of a current serving cell and adjacent cells; and
designating the current serving cell as a candidate cell for a next serving cell in a cell reselection process, if the received signal code power of the current serving cell is the strongest of all the cells.
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Abstract
A method and apparatus for reselecting a cell in the network with the hierarchical cell structure, are provided. According to an embodiment, the method includes measuring a received signal code power of each of a current serving cell and adjacent cells; and designating the current serving cell as a candidate cell for a next serving cell in a cell reselection process, if the received signal code power of the current serving cell is the strongest of all the cells.
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Citations
20 Claims
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1. A method for selecting and reselecting a cell in a mobile handset, comprising:
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measuring a received signal code power of each of a current serving cell and adjacent cells; and
designating the current serving cell as a candidate cell for a next serving cell in a cell reselection process, if the received signal code power of the current serving cell is the strongest of all the cells. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for selecting and reselecting a cell in a mobile handset, comprising:
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measuring a received signal code power and an Energy per Chip to Noise Ratio of each of a current serving cell of the mobile handset and adjacent cells searched by the mobile handset;
designating the current serving cell as a candidate cell for a next serving cell in a cell reselection when the received signal code power of the current serving cell is the strongest of all the cells;
designating, as a candidate cell for the next serving cell in a cell reselection, any of the adjacent cell of which the measured Energy per Chip to Noise Ratio value satisfies a reference value (Qhcs); and
selecting a serving cell from the candidate cells. - View Dependent Claims (8, 9, 10)
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11. A method for selecting and reselecting a cell in a mobile handset, comprising:
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checking if a ping pong phenomenon occurs;
measuring a received signal code power and a signal quality of a current serving cell when a number of occurrences of the ping pong phenomenon exceeds a predetermined number; and
discontinuing a cell reselection when the received signal code power and the signal quality of the current serving cell satisfy threshold values QrxlevMin and QqualMin, respectively. - View Dependent Claims (12, 13, 14)
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15. A mobile handset comprising:
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a signal receiving unit receiving a signal from each of a current serving cell and adjacent cells;
a received signal measuring unit measuring a received signal code power and an Energy per Chip to Noise Ratio of the signal received from each of the current serving cell and the adjacent cells;
a memory storing values measured by the received signal measuring unit and reference values (Qhcs) for cell reselection; and
a processor performing a process-of automatically designating the current serving cell as a candidate cell for a next serving cell in a cell reselection if the current serving cell has the strongest received signal code power among all the cells. - View Dependent Claims (16, 17)
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18. A mobile handset comprising:
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a signal receiving unit receiving a signal from each of a current serving cell and adjacent cells;
a received signal measuring unit measuring a received signal code power and an Energy per Chip to Noise Ratio of the signal received from each of the current serving cell and the adjacent cells;
a memory storing values measured by the received signal measuring unit and threshold values QrxlevMin and QqualMin for cell reselection; and
a processor discontinuing a cell reselection when the received signal code power and the Energy per Chip to Noise Ratio respectively satisfy the threshold values QrxlevMin and QqualMin stored in the memory. - View Dependent Claims (19, 20)
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Specification