US Patent No: 6,445,728
Number of patents in Portfolio can not be more than 2000
Method of establishing search window size for a mobile station in a cellular system
Stats
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Sep 3, 2002
Issued date -
Jun 25, 1999
filing date -
09/344,584
serial no -
In Force
status
Importance
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Abstract
A method of establishing a search window size for a mobile station in a cellular system is disclosed. For the mobile station searching for a pilot signal of base transceiver station (BTS), the information of maximum index being outputted from the mobile station is gathered, wherein the maximum index is an index number at which the strongest signal is detected within a predetermined window size. For the gathered maximum indexes, confidence level is established and mean value is calculated and then confidence interval is calculated for the gathered maximum indexes using the established confidence level and calculated mean value. A maximum offset of the search window to be applied to the present radio morphology of the cellular system is calculated from the calculated confidence interval and a search window to be applied to the present radio morphology is estimated by increasing the maximum offset by two times. Therefore, the present invention is applicable to the characteristic of the mobile station and radio morphology of the cellular system by estimating the search window using the search result data gathered from the mobile station.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,109,390 Diversity receiver in a CDMA cellular telephone system | 731 | 1989 | |
| 5,577,022 Pilot signal searching technique for a cellular communications system | 131 | 1994 | |
| 5,710,768 Method of searching for a bursty signal | 90 | 1995 | |
| 5,805,648 Method and apparatus for performing search acquisition in a CDMA communication system | 73 | 1995 | |
| 5,644,591 Method and apparatus for performing search acquisition in a CDMA communications system | 137 | 1996 | |
| 5,790,589 System and method for rapidly reacquiring a pilot channel | 42 | 1996 | |
| 5,781,543 Power-efficient acquisition of a CDMA pilot signal | 67 | 1996 | |
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| 5,903,844 Method and apparatus for determining remote unit location in a communication system | 38 | 1997 | |
| 6,101,175 Method and apparatus for handoff within a communication system | 39 | 1997 | |
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| 5,627,835 Artificial window size interrupt reduction system for CDMA receiver | 40 | 1995 | |
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| 6,144,691 Method and apparatus for synchronizing to a direct sequence spread spectrum signal | 21 | 1997 | |
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| 6,044,104 Cell search method and mobile station apparatus | 31 | 1998 | |
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| 5,297,161 Method and apparatus for power estimation in an orthogonal coded communication system | 50 | 1992 | |
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| 5,420,850 Mobile station and cell selecting method for code division multiplex access mobile communication | 68 | 1994 | |
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| 5,726,982 Artificial window size interrupt reduction system for CDMA receiver | 16 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 3, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
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| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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