Retransmission and retransmission request in data communication systems
First Claim
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1. A method comprisingreceiving 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;
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.
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Abstract
Embodiments related to retransmission and a retransmission request are described and depicted.
75 Citations
34 Claims
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1. 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; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A transmitter comprising:
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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; 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. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A receiver comprising:
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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; and a request generation entity to receive the indication and to generate a retransmission request based on the indication. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A DSL transmission system comprising:
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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; 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.
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34. A protocol stack implemented on a chip, the protocol stack comprising a retransmission functionality with a cell or a group of cells as basic retransmission data units, wherein the retransmission functionality is provided between a TPS-TC sublayer and a data link layer.
Specification