Patent ID: 9414432
Filing Date: 2016-08-09
CPC Classification: H03M,H04L,H04W

Claim Text:
1. A method, comprising: receiving a data unit, wherein the data unit conforms to a first communication protocol or to a second communication protocol; decoding, using a tail biting technique, a field of a preamble of the data unit, including decoding a received cyclic redundancy check (CRC) included in the field; generating, based on the field, a first CRC using a first CRC generation scheme, the first CRC generation scheme specified for the first field by the first communication protocol; generating, based on the field, a second CRC using a second CRC generation scheme, the second CRC generation scheme specified for the field by the second communication protocol; comparing (i) the first generated CRC and (ii) the second generated CRC to the received CRC; determining that the data unit conforms to the first communication protocol when the first generated CRC matches the received CRC; and determining that the data unit conforms to the second communication protocol when the second generated CRC matches the received CRC.