Communication reception with compensation for relative variation between transmit bit interval and receiver sampling interval

摘要

The effect of timing inaccuracy is compensated for in a communication receiver that receives a transmission of bits temporally separated by a bit interval. The compensation employs an oversampling clock whose frequency defines a sampling interval that is smaller than the bit interval, which bit interval is nominally a predetermined integer multiple of the sampling interval. The oversampling clock samples the received transmission to produce an incoming sample stream. The incoming sample stream is decoded by a plurality of different decoding operations to produce, respectively, a plurality of decoded sample streams. It is determined whether the received transmission is decodable from any of the decoded sample streams.

主权项

1. A method of processing a received transmission of bits that are temporally separated by a bit interval, comprising:
providing an oversampling clock whose frequency defines a sampling interval that is smaller than said bit interval, wherein said bit interval is nominally a predetermined integer multiple of said sampling interval; sampling, with a communication receiver apparatus, the received transmission in accordance with said sampling interval to produce an incoming sample stream; applying to the incoming sample stream, with the communication receiver apparatus, a plurality of different decoding operations to produce, respectively, a plurality of decoded sample streams; and determining, with the communication receiver apparatus, whether the received transmission is decodable from any of the decoded sample streams, wherein the decoded sample streams respectively correspond to different relative variations between said sampling interval and said bit interval.