| US 7,499,433 B2 | ||
| Method and apparatus for DTX frame detection | ||
| Francis Dominique, Rockaway, N.J. (US); Martin Howard Meyers, Montclair, N.J. (US); Leonard Piazzi, Denville, N.J. (US); and Alexandro Salvarani, Edison, N.J. (US) | ||
| Assigned to Alcatel-Lucent USA Inc., Murray Hill, N.J. (US) | ||
| Filed on Nov. 19, 2002, as Appl. No. 10/298,551. | ||
| Prior Publication US 2004/0095918 A1, May 20, 2004 | ||
| Int. Cl. H04B 7/216 (2006.01) | ||
| U.S. Cl. 370—335 [370/342; 370/329; 455/450] | 9 Claims |
| 1. A method of detecting discontinued transmission (DTX) frames in data frames received over a link or channel, the method
comprising the step of:
determining whether a received data frame is a DTX frame based on a plurality of comparing steps,
at least a first one of the comparing steps comparing a first unique metric to a first unique threshold and determining that
the received data frame is an erasure if the comparison determines that the first unique metric is less than the first unique
threshold, wherein an erasure is a transmitted data frame that is received with errors, and
if the first unique metric is greater than or equal to the first unique threshold, at least a second one of the comparing
steps comparing a second unique metric to a second unique threshold and determining that the received data frame is a DTX
frame if the second unique metric is greater than or equal to the second unique threshold.
|