Patent ID: 7359332

Claim:
An upstream channel change method, comprising: transmitting data upstream from a cable modem to a cable modem termination system using a first channel; using the cable modem termination system, directing the cable modem to change the upstream data transmission from the first channel to a second channel; changing the upstream data transmission from the first channel to the second channel between upstream data bursts; continuing to transmit the data upstream from the cable modem to the cable modem termination system using the second channel by employing a first upstream data burst profile that is different from an original upstream data burst profile employed before the channel change thereby performing continued upstream data bursting; performing initialization and ranging processes for the second channel in response of the channel change; using results of the initialization and ranging processes to identify a second upstream data burst profile; and continuing to transmit the data upstream from the cable modem to the cable modem termination system using the second channel by employing the second upstream data burst profile.