Code detection
First Claim
1. A method for detecting a code transmitted in a wireless format, the method comprising:
- (a) determining a power level associated with the code;
(b) comparing the determined power level with a plurality of thresholds;
(c) increasing or decreasing a test statistic based on which of the thresholds that the determined power level falls within;
(d) if the test statistic exceeds an acceptance threshold, the code is deemed acquired;
(e) if the test statistic is below a dismissal threshold, the code is deemed not present; and
(f) if the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, repeat step (a) through step (e).
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Abstract
A code transmitted in a wireless format is to be detected. A power level associated with the code is determined. The determined power level is compared with a plurality of thresholds. A test statistic is increased or decreased based on which of the thresholds that the determined power level falls within. If the test statistic exceeds an acceptance threshold, the code is deemed acquired. If the test statistic is below a dismissal threshold, the code is deemed not present. If the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, the testing for the code is repeated.
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Citations
12 Claims
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1. A method for detecting a code transmitted in a wireless format, the method comprising:
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(a) determining a power level associated with the code;
(b) comparing the determined power level with a plurality of thresholds;
(c) increasing or decreasing a test statistic based on which of the thresholds that the determined power level falls within;
(d) if the test statistic exceeds an acceptance threshold, the code is deemed acquired;
(e) if the test statistic is below a dismissal threshold, the code is deemed not present; and
(f) if the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, repeat step (a) through step (e). - View Dependent Claims (2, 3, 4)
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5. A code detector for detecting a code transmitted in a wireless format, the code detector comprising:
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means for performing processing the code comprising;
means for determining a power level associated with the code;
means for comparing the determined power level with a plurality of thresholds;
means for increasing or decreasing a test statistic based on which of the thresholds that the determined power level falls within;
means for if the test statistic exceeds an acceptance threshold, the code is deemed acquired; and
means for if the test statistic is below a dismissal threshold, the code is deemed not present; and
means for if the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, repeating the performing of the processing of the code. - View Dependent Claims (6, 7, 8)
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9. A subscriber unit capable of detecting a code transmitted in a wireless format, the subscriber unit comprising:
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means for performing processing the code comprising;
means for determining a power level associated with the code;
means for comparing the determined power level with a plurality of thresholds;
means for increasing or decreasing a test statistic based on which of the thresholds that the determined power level falls within;
means for if the test statistic exceeds an acceptance threshold, the code is deemed acquired; and
means for if the test statistic is below a dismissal threshold, the code is deemed not present; and
means for if the test statistic does not exceed the acceptance threshold and the test statistic is not below the dismissal threshold, repeating the performing of the processing of the code. - View Dependent Claims (10, 11, 12)
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Specification