Patent ID: 7349423
Filing Date: 2008-03-25
Classification: H04B

Abstract:
1. A method for reusing Synchronous Code Division Multiple Access (S-CDMA) parameters to define Time Division Multiple Access (TDMA) minislot size, comprising the steps of: determining S-CDMA parameters to create a S-CDMA-type upstream channel descriptor (UCD) message by a cable modem termination system (CMTS); forwarding said S-CDMA-type UCD message to a modem operating in TDMA mode by said CMTS; calculating a TDMA minislot size by said modem reusing said S-CDMA parameters; calculating a frame duration value and a minislots per frame value; using said frame duration value and said minislots per frame value to maintain a minislot counter and a frame counter; and constructing a relationship between a system timestamp counter, said minislot counter and said frame counter via a timestamp snapshot.