Coexistence of a normal-rate physical layer and a low-rate physical layer in a wireless network

摘要

A system including a physical layer module and a processing module. The physical layer module is configured to communicate at a first data rate via a channel, where the channel includes (i) a first sub-channel and (ii) a second sub-channel of the channel, to receive a first packet including a first preamble transmitted at the first data rate via (i) the first sub-channel and (ii) the second sub-channel, and to receive a second packet including a second preamble transmitted at a second data rate via (i) the first sub-channel or (ii) the second sub-channel, where the second data rate is less than the first data rate. The processing module is configured to process (i) the first preamble transmitted at the first data rate and (ii) at least a portion of the second preamble transmitted at the second data rate.

主权项

1. A system comprising:
a physical layer module configured to
communicate at a first data rate via a channel, wherein the channel includes (i) a first sub-channel and (ii) a second sub-channel of the channel,receive a first packet including a first preamble transmitted at the first data rate via (i) the first sub-channel and (ii) the second sub-channel, wherein the first preamble includes (i) a first short training field having a first periodicity and (ii) a first remainder, andreceive a second packet including a second preamble transmitted at a second data rate via (i) the first sub-channel or (ii) the second sub-channel, wherein the second data rate is less than the first data rate, wherein the second preamble includes (i) a second short training field having a second periodicity and (ii) a second remainder, wherein the second periodicity is equal to the first periodicity divided by an integer greater than one, and wherein the first remainder is different than the second remainder; and a processing module configured to process (i) the first preamble transmitted at the first data rate and (ii) at least a portion of the second preamble transmitted at the second data rate.