Extended bandwidth homePNA system compatible with homePNA 2.0

Details Extended bandwidth homePNA system compatible with homePNA 2.0 Extended bandwidth homePNA system compatible with homePNA 2.0

2006-06-27

2006-06-27

Rao, Seema S. (Department: 2666)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C379S093060, C714S755000, C375S360000

Reexamination Certificate

active

07068649

ABSTRACT:
An extended bandwidth HomePNA system uses a transmit spectrum having a greater bandwidth than the bandwidth specified by a HomePNA 2.0 communication standard. The extended bandwidth system of the invention provides for additional copies of a spectrum of a 2 Mbaud training signal for better accuracy in decoding transmitted data by a receiver. In one embodiment, the extended bandwidth is a 12 MHz band centered at 10 MHz, from 4 MHz to 16 MHz. This extended bandwidth allows for three copies of a 4 Mbaud training sequence or six copies of a 2 Mbaud training sequence. The extended bandwidth of the invention is compatible with a HomePNA 2.0 system by providing a training sequence that enables a HomePNA 2.0 receiver in 2 Mbaud mode to train on the transmitted signal and determine that the transmitted signal is not intended for the HomePNA 2.0 receiver in 2 Mbaud mode.

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PCT Notification of Transmittal of International Preliminary Examination Report, International Application No. PCT/US01/24269, International Filing Date Aug. 3, 2001, mailed Dec. 12, 2002.

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