초록 ▼

An apparatus (101, 110) and method for adaptive forward error correction in a data communication system (100) provides for dynamically changing forward error correction parameters based upon communication channel conditions, such as noise levels or error rates. In the method embodiment of the invent

An apparatus (101, 110) and method for adaptive forward error correction in a data communication system (100) provides for dynamically changing forward error correction parameters based upon communication channel conditions, such as noise levels or error rates. In the method embodiment of the invention, data having a current degree of forward error correction is received (305), and a channel parameter is monitored (310), such as packet or bit error rates. A threshold level for the channel parameter is determined (315), and the monitored channel parameter is compared to the threshold level (320). When the channel parameter is not within a predetermined or adaptive variance of the threshold level, a revised forward error correction parameter having a greater or lesser degree of forward error correction capability is selected (330, 340, 350, 360), and the revised forward error correction parameter is transmitted (370). The device receiving the revised forward error correction parameter, such as a secondary station (110), then transmits data encoded utilizing the revised error correction parameter (425).

대표청구항 ▼

A method for adaptive forward error correction in a data communication system, the data communication system having a communications medium, the communications medium having a plurality of communications channels, the method comprising: (a) receiving encoded data over a first communications channel

A method for adaptive forward error correction in a data communication system, the data communication system having a communications medium, the communications medium having a plurality of communications channels, the method comprising: (a) receiving encoded data over a first communications channel of the plurality of communications channels, the encoded data having a first degree of forward error correction of a plurality of degrees of forward error correction; (b) monitoring a channel parameter of the first communications channel to form a monitored parameter; (c) determining a threshold level of the channel parameter; (d) comparing the monitored parameter with the threshold level; (e) when the monitored parameter is not within a variance of the threshold level, selecting a second degree of forward error correction of the plurality of degrees of forward error correction; and (f) transmitting a forward error correction revision parameter on a second communications channel of the plurality of communications channels, the forward error correction revision parameter corresponding to the second degree of forward error correction.