Multi-carrier communication system with sample rate pilot...

Details Multi-carrier communication system with sample rate pilot... Multi-carrier communication system with sample rate pilot...

H - Electricity

04

J

H04J 4/00 (2006.01) H04L 5/02 (2006.01) H04L 5/14 (2006.01) H04L 27/26 (2006.01)

Patent

CA 2349986

In a multi-carrier communication system wherein data are transferred bi-directionally in a time division duplexed way, a first pilot carrier is used to transfer a sample rate between two transceivers (VDSL_LT, VDSL-NT) and a second pilot carrier is used to transfer a time division duplexing frame rate between the two transceivers (VDSL_LT, VDSL_NT). The first pilot carrier has an instantaneous frequency that is a fraction of the sample rate of the first transceiver (VDSL-LT) and is orthogonal to other carriers used in the mufti-carrier communication system. The second pilot carrier has a mean frequency that is a fraction of the time division duplexing frame rate and is also orthogonal to the other carriers used in the multi-carrier communication system. The second pilot carrier is different from the first pilot carrier.

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