Patent ID: 7751338

Claim:
A process for optimizing transmission speeds on a distributed transmission system which can support multiple upstream channels or logical channels simultaneously, comprising: 1) gathering data about each cable modem (CM) in a group of CMs coupled to a cable modem termination system (CMTS) through a distributed transmission system; 2) dividing said group of CMs up into logical groups based upon CM type and/or throughput ability; 3) creating an upstream channel or logical channel on said distributed transmission system for each logical group of CMs, each upstream channel or logical channel having transmission characteristics optimized for a particular logical group of CMs; 4) assigning the CMs in each logical group to the upstream channel or logical channel created for that logical group; and 5) monitoring the error rate of transmissions from each CM, and if the error rate of any CM becomes higher than an underperformance limit or lower than an overperformance limit, sending a message to said CM whose error rate has become too high or too low causing each said CM which is overperforming or underperforming to switch to an upstream channel with a burst profile which is compatible with the CM type and suitable for more efficient communications of digital data between said CMTS and said CM, wherein step 1 comprises gathering data about each modem through an initial ranging process and a registration process, and wherein step 2 comprises dividing CMs into logical groups by CM type as learned from said registration process with DOCSIS 1.0 modems in one logical group and DOCSIS 1.1 CMs in another logical group and DOCSIS 2.0 CMs in a third logical group operating in SCDMA mode only or ATDMA mode only.