Patent ID: 6996128
Filing Date: 2006-02-07
Classification: H04L

Abstract:
1. A method of transmitting voice packets from a sender to a recipient over a transmission system, the method comprising: periodically allocating bandwidth to the transmission system; determining unsolicited grant arrivals in response to a request from the sender; determining a transmission window based on grant arrivals intervals; sampling voice data with a clock synchronized to the transmission window; packetizing the sampled voice data in synchronization with the transmission window for generating voice packet data; sampling voice packets using a clock derived from and synchronized with a cable modem clock of a cable modem communicative with a cable modem termination system; determining time needed between adjacent unsolicited grant arrivals for storing the sampled voice packets; and transmitting, upon receipt of an unsolicited grant arrival, the voice packet data to the recipient over the transmission system, during the determined transmission window.