Apparatus and methods for timing recovery in a wireless transceiver
First Claim
1. A method for recovery of timing of a communication signal in a transceiver comprising:
- acquiring a first pilot channel to establish timing tracking of the transceiver;
monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame;
determining a number of decoding errors in the first frame of the decoded signal;
determining whether the number of decoding errors is greater than a predetermined non-zero amount;
reacquiring the first pilot channel at a start of a second received frame when the number of decoding errors is determined to be greater than the predetermined amount; and
resetting timing tracking of the transceiver based on the reacquired first pilot channel.
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Abstract
Apparatus and methods for use in a wireless communication system are disclosed for recovery of timing tracking in a device, such as a wireless transceiver, after decoding errors occur due to incorrect timing tracking. In particular, the disclosed methods and apparatus recover timing tracking by monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame, determining whether a number of decoding errors is greater than a predetermined amount, reacquiring a first pilot channel at a start of a subsequently received second frame when the number of decoding errors is determined to be greater than the predetermined amount, and resetting timing tracking of the transceiver based on the reacquired first pilot channel.
86 Citations
26 Claims
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1. A method for recovery of timing of a communication signal in a transceiver comprising:
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acquiring a first pilot channel to establish timing tracking of the transceiver; monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame; determining a number of decoding errors in the first frame of the decoded signal; determining whether the number of decoding errors is greater than a predetermined non-zero amount; reacquiring the first pilot channel at a start of a second received frame when the number of decoding errors is determined to be greater than the predetermined amount; and resetting timing tracking of the transceiver based on the reacquired first pilot channel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computer readable medium having instructions stored thereon, the stored instructions, when executed by a processor, cause the processor to perform a method to recover timing tracking in a transceiver, the method comprising:
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acquiring a first pilot channel to establish timing tracking of the transceiver; monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame; determine a number of decoding errors in the first frame of the decoded signal; determining whether the number of decoding errors is greater than a predetermined non-zero amount; reacquiring the first pilot channel at a start of a second received frame when the number of decoding errors is determined to be greater than the predetermined amount; and resetting timing tracking of the transceiver based on the reacquired first pilot channel. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A transceiver apparatus configured to recover timing tracking comprising:
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a decoder configured to decode communication signals received by transceiver including at least one pilot channel; and at least one processor configured to; acquire a first pilot channel to establish timing tracking of the transceiver; monitor a decoded signal output by the decoder for decoding errors occurring during a first frame; determine a number of decoding errors in the first frame of the decoded signal; determine whether the number of decoding errors is greater than a predetermined non-zero amount; reacquire the first pilot channel at a start of a second received frame when the number of decoding errors is determined to be greater than the predetermined amount; and reset timing tracking of the transceiver based on the reacquired first pilot channel. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An apparatus for resolving timing in a wireless communication device comprising:
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means for acquiring a first pilot channel to establish timing tracking of a transceiver; means for monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame; means for determining a number of decoding errors in the first frame of the decoded signal; means for determining whether the number of decoding errors exceeds a predetermined non-zero number; means for reacquiring the first pilot channel at a start of a second received frame when the number of decoding errors is determined to be greater than the predetermined amount; means for resetting timing tracking of the transceiver based on reacquired first pilot channel. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification