Data transmission method for HSDPA
First Claim
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1. A method for processing packet data in a receiver of a communications system, comprising:
- establishing a reordering buffer per a logical channel;
receiving a data block from a transmitter;
forwarding the data block to the reordering buffer identified by a logical channel identity, wherein the reordering buffer is configured per the logical channel;
disassembling the data block into at least one data unit;
delivering the disassembled at least one data unit to an upper layer.
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Abstract
In the data transmission method of an HSDPA system according to the present invention, a transmitter transmits Data Blocks each composed of one or more data units originated from a same logical channel, and a receiver receives the Data Block through a HS-DSCH and distributes the Data Block to a predetermined reordering buffer. Since each Data Block is composed of the MAC-d PDUs originated from the same logical channel, it is possible to monitor the in-sequence delivery of the data units, resulting in reduction of undesirable queuing delay caused by logical channel multiplexing.
23 Citations
20 Claims
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1. A method for processing packet data in a receiver of a communications system, comprising:
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establishing a reordering buffer per a logical channel; receiving a data block from a transmitter; forwarding the data block to the reordering buffer identified by a logical channel identity, wherein the reordering buffer is configured per the logical channel; disassembling the data block into at least one data unit; delivering the disassembled at least one data unit to an upper layer. - View Dependent Claims (2, 3, 4, 5)
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6. A data transmission method comprising:
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transmitting, from a transmitter, a data block comprising one or more data units which all originated from a same logical channel; receiving, at a receiver, the data block through a transport channel; and distributing the data block to a reordering buffer, wherein one reordering process is performed per logical channel, wherein the data block includes a transmission sequence number (TSN) field of which value identifies the data block. - View Dependent Claims (7, 8, 9, 10, 11)
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12. An apparatus for processing packet data in a communications system, the apparatus comprising:
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a protocol entity configured to; establish a reordering buffer per a logical channel, receive a data block from a transmitting side, forward the data block to the reordering buffer identified by a logical channel identity included in the data block, disassemble the data block into at least one data unit, and deliver the disassembled at least one data unit to an upper layer, wherein the reordering buffer is configured per the logical channel. - View Dependent Claims (13, 14, 15, 16)
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17. A system for processing packet data in a communications system, the system comprising:
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a transmitting unit to transmit a data block generated by one or more data units originated from a same logical channel; and a receiving unit to receive the data block through a transport channel and to distribute the data block to a reordering buffer, wherein one reordering process is performed per logical channel, and wherein the data block includes a transmission sequence number (TSN) field and a logical channel identifier, wherein a value of the TSN field identifies the data block and a value of the logical channel identifier identifies the logical channel. - View Dependent Claims (18, 19, 20)
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Specification