Reduce echo level by scrambling phases of echoes from multiple ports in FDX node
AssigneeCisco Technology, Inc.
InventorHang Jin
Life of this patent
Estimating the term…
Abstract
Reduce echo level may be provided by scrambling phases of echoes from multiple ports in a Full Duplex (FDX) node. The FDX node may comprise a transmit portion, a receive portion, and a plurality of ports. The transmit portion may comprise a transmit portion transmit port and a plurality of splitters. The receive portion may comprise a receive portion receive port and a plurality of combiners. The plurality of splitters and the plurality of combiners may scramble phases of completed loops from the transmit portion transmit port to the receive portion receive port resulting from reflections from the plurality of ports.
Claims20
An apparatus comprising:
- a transmit portion comprising;
- a transmit portion transmit port, and
- a plurality of splitters;
- a receive portion comprising;
- a receive portion receive port, and
- a plurality of combiners;
- and
- a plurality of ports wherein the plurality of splitters and the plurality of combiners scramble phases of completed loops from the transmit portion transmit port to the receive portion receive port resulting from reflections from the plurality of ports.
An apparatus comprising:
- a transmit portion comprising;
- a transmit portion transmit port, and
- a plurality of splitters divided into a first splitter level and a second splitter level, the first splitter level comprising a first splitter and the second splitter level comprising a second splitter and a third splitter;
- a receive portion comprising;
- a receive portion receive port, and
- a plurality of combiners divided into a first combiner level and a second combiner level, the first combiner level comprising a first combiner and the second combiner level comprising a second combiner and a third combiner;
- and
- a plurality of ports wherein the plurality of splitters and the plurality of combiners scramble phases of completed loops from the transmit portion transmit port to the receive portion receive port resulting from reflections from the plurality of ports.
An apparatus comprising:
- a Remote Physical Device (RPD) comprising an RPD transmit port and an RPD receive port;
- a transmit portion comprising;
- a transmit portion transmit port connected to the RPD transmit port, and
- a plurality of splitters divided into a first splitter level and a second splitter level, the first splitter level comprising a first splitter and the second splitter level comprising a second splitter and a third splitter;
- a receive portion comprising;
- a receive portion receive port connected to the RPD receive port, and
- a plurality of combiners divided into a first combiner level and a second combiner level, the first combiner level comprising a first combiner and the second combiner level comprising a second combiner and a third combiner;
- and
- a plurality of ports wherein the plurality of splitters and the plurality of combiners scramble phases of completed loops from the transmit portion transmit port to the receive portion receive port resulting from reflections from the plurality of ports uniformly over 360 degree.
Dependencies are inferred from the claim text.