Back to results
US 8,713,393 B2Granted
Retransmission and retransmission request in data communication systems
AssigneeLantiq Deutschland GmbH
InventorsBernd Heise, Michael Horvat, Chunfeng Hu, Juraj Povazanec, Gert Schedelbeck, Dietmar Schoppmeier, Ingo Volkening
Life of this patent
Estimating the term…
Abstract
Embodiments related to retransmission and a retransmission request are described and depicted.
Claims32
A method comprising
- receiving a plurality of cells;
- providing for each cell or a group of the plurality of cells an identification;
- transmitting the plurality of cells from a first transceiver unit to a second transceiver unit;
- transmitting a request for retransmission from the second transceiver unit to the first transceiver unit, the request comprising one or more identifications to indicate a retransmission request for one or more cells;
- providing a cell header compression, the cell header compression reducing a cell header by n bits;
- subsequent the cell header compression, using at least a part of the n bits for providing CRC information, without reduction of header bytes, the CRC information used to verify an integrity of at least one of the plurality of cells;
- processing the request for retransmission at the first transceiver unit to identify the cells for retransmission based on the identification;
- and
- retransmitting the one or more identified cells.
6 more elements
A transmitter comprising:
- an input to receive a plurality of cells;
- an identification entity to provide for each of the plurality of cells or for a group of the plurality of cells an identification;
- a transmit entity to initiate transmission of the plurality of cells to a remote transceiver unit;
- a retransmission entity to receive a retransmission request of at least one of the plurality of cells, the request including at least one identification from the remote transceiver unit, the retransmission entity being configured to transfer to the transmit entity one or more cells based on the received at least one identification;
- and
- an entity to provide a cell header compression, the cell header compression reducing a cell header by n bits, and subsequent the cell header compression, to use at least a part of the n bits for providing CRC information, without reduction of header bytes, the CRC information used to verify an integrity of at least one of the plurality of cells,
- wherein at least one of the entities is at least partially embodied in hardware.
4 more elements
A receiver comprising:
- an input to receive a plurality of cells;
- an identification entity to provide for each of the plurality of cells or for a group of the plurality of cells an identification;
- a transmit entity to initiate transmission of the plurality of cells to a remote transceiver unit;
- a retransmission entity to receive a plurality of cells from a remote transmitter and to provide an indication of at least one corrupt cell or an indication of at least one corrupt group of cells;
- a request generation entity to receive the indication and to generate a retransmission request based on the indication;
- and
- an entity to provide a cell header compression, the cell header compression reducing a cell header by n bits, the entity to further, subsequent to the cell header compression and without reduction of header bytes, use at least a part of the n bits for providing CRC information, the CRC information used to verify an integrity of at least one of the plurality of cells,
- wherein at least one of the entities is at least partially embodied in hardware.
5 more elements
A DSL transmission system comprising:
- a first transceiver unit, the first transceiver unit comprising an input to receive a plurality of cells;
- an identification entity to provide an identification for each of the plurality of cells or for a group of cells;
- an entity to provide a cell header compression, the cell header compression reducing a cell header by n bits, the entity to further, subsequent to the cell header compression and without reduction of header bytes, use at least a part of the n bits for providing CRC information, the CRC information used to verify an integrity of at least one of the plurality of cells;
- and
- a retransmission entity to receive a retransmission request including at least one identification from the remote transceiver unit, the retransmission entity being configured to transfer to the transmit entity one or more cells based on the received at least one identification;
- a second transceiver unit, the second transceiver unit comprising a second retransmission entity to receive the plurality of cells and to provide indication of at least one corrupt cell or at least one corrupt group of cells;
- a request generation entity to receive the indication and to generate the retransmission request based on the indication,
- wherein at least one of the entities and units is at least partially embodied in hardware.
5 more elements
Dependencies are inferred from the claim text.