Retransmission in data communication systems
First Claim
Patent Images
1. A transmitter comprising:
- a fragmentation entity to separate a packet into a plurality of data fragments;
a processor entity to provide information indicating whether a data fragment of the plurality of data fragments is to be protected by retransmission or providing information indicating whether a group of data fragments is to be protected by retransmission;
an identification entity to provide for each data fragment or group of data fragments an identification;
a retransmission entity to receive a retransmission request including at least one identification of a data fragment from a remote transceiver unit; and
a TPS-TC entity to receive the at least one data fragment having an associated identification and provide TPS-TC processing; and
wherein the retransmission entity is configured to transfer to the TPS-TC entity one or more data fragments based on the at least one identification.
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Abstract
Embodiments related to retransmission in data communication systems are described and depicted. In one embodiment, a data packet is received and separated to a plurality of data fragments. Information indicating whether a fragment of the plurality of fragments is to be protected by retransmission is provided or information indicating whether a group of fragments is to be protected by retransmission is provided. A request for retransmission from the second transceiver unit to the first transceiver unit may be generated. Based on the request, one or more identified data fragments may be retransmitted.
14 Citations
20 Claims
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1. A transmitter comprising:
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a fragmentation entity to separate a packet into a plurality of data fragments; a processor entity to provide information indicating whether a data fragment of the plurality of data fragments is to be protected by retransmission or providing information indicating whether a group of data fragments is to be protected by retransmission; an identification entity to provide for each data fragment or group of data fragments an identification; a retransmission entity to receive a retransmission request including at least one identification of a data fragment from a remote transceiver unit; and a TPS-TC entity to receive the at least one data fragment having an associated identification and provide TPS-TC processing; and
wherein the retransmission entity is configured to transfer to the TPS-TC entity one or more data fragments based on the at least one identification. - View Dependent Claims (2, 3, 4)
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5. A receiver comprising
a retransmission entity to receive data fragments, wherein each of the data fragments or a group of data fragments comprises an identification, wherein the retransmission entity is configured to provide indication of at least one corrupt fragment; -
a processor entity to provide information indicating whether a data fragment of data fragments is to be protected by retransmission or providing information indicating whether a group of data fragments is to be protected by retransmission; a request generation entity to receive the indication and to generate a retransmission request based on the identification and the indication of at least one corrupt data fragment or at least one corrupt group of data fragments, wherein the retransmission entity is configured to receive at least one of the data fragments from a TPS-TC entity, the TPS-TC entity implementing at least one functionality of a TPS-TC sublayer for the received at least one of the data fragments. - View Dependent Claims (6, 7)
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8. A method comprising
receiving a data packet; -
separating the data packet in a plurality of data fragments; providing for each of the plurality of data fragments or for a group of the plurality of data fragments an identification; transmitting the plurality of data fragments from a first transceiver unit to a second transceiver unit; providing information indicating whether a fragment of the plurality of fragments is to be protected by retransmission or providing information indicating whether a group of fragments is to be protected by retransmission; providing a rate decoupling functionality by transmitting idle fragments which are transparent to at least a portion of the first transceiver and the second transceiver; transmitting a request for retransmission from the second transceiver unit to the first transceiver unit, the request comprising one or more identifications; processing the request for retransmission at the first transceiver unit to identify one or more data fragments based on the one or more identifications; and retransmitting the one or more identified data fragments. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A DSL transmission system comprising:
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a first transceiver unit, the first transceiver unit comprising a fragmentation entity to separate a packet into a plurality of data fragments; a first identification entity to provide for each data fragment or a group of data fragments an identification; a processor entity to provide information indicating whether a fragment of the plurality of data fragments is to be protected by retransmission or providing information indicating whether a group of data fragments is to be protected by retransmission; a first transmission entity to transmit the plurality of data fragments; and a first retransmission entity to receive retransmission requests and to identify at least one fragment based on the received retransmission request; a second transceiver unit, the second transceiver unit comprising a second retransmission entity to receive the plurality of data fragments and to provide indication of at least one corrupt data fragment; a request generation entity to receive the indication and to generate a retransmission request based on the indication and the identification; and a transmission entity to transmit the retransmission request to the first transceiver unit. - View Dependent Claims (18, 19, 20)
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Specification