Efficient detection of predetermined sequences
First Claim
1. A method in a user equipment (UE) of detecting predetermined sequences in sequences received by the UE, comprising the steps of:
- conducting, in the UE, a hypothesis test on a received sequence;
determining, in the UE, based on a result of the hypothesis test whether to decode the received sequence;
if it is determined to decode the received sequence, decoding the received sequence; and
determining whether the received sequence is a predetermined sequence based on at least one of the result of the hypothesis test and a decoded received sequence.
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Accused Products
Abstract
Hypothesis tests, such as maximum likelihood detections, are executed on symbol sequences received by, for example, a user equipment (UE) in a communication system. The hypothesis tester checks a received sequence against a group of predetermined sequences that possibly could have been sent to the UE. For received sequences that are matched or not matched by the hypothesis tester with high confidence, complete decoding, for example, with a Viterbi decoder, is not necessary. Instead, complete decoding is used as a “tie-breaker” for those sequences which the hypothesis tester cannot match or not match with desired confidence levels.
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Citations
22 Claims
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1. A method in a user equipment (UE) of detecting predetermined sequences in sequences received by the UE, comprising the steps of:
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conducting, in the UE, a hypothesis test on a received sequence; determining, in the UE, based on a result of the hypothesis test whether to decode the received sequence; if it is determined to decode the received sequence, decoding the received sequence; and determining whether the received sequence is a predetermined sequence based on at least one of the result of the hypothesis test and a decoded received sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus in a user equipment (UE) for detecting predetermined sequences in sequences received by the UE, comprising:
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a hypothesis tester adapted to conduct a hypothesis test on a received sequence and to determine, based on a result of the hypothesis test, whether the received sequence is a predetermined sequence; a decoder, responsive to the hypothesis tester, adapted to decode the received sequence; and a tester, responsive to the hypothesis tester, adapted to determine whether the received sequence is a predetermined sequence; wherein whether the received sequence is decoded is based on the result of the hypothesis test. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification