DATA TRANSMISSION METHOD FOR HSDPA
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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.
35 Citations
36 Claims
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1-28. -28. (canceled)
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29. A method for processing data in a communication system, the method comprising:
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receiving a medium access control (MAC) protocol data unit (PDU) comprising a header and a payload from a transmitting device, wherein the payload includes a plurality of MAC service data units (SDUs) and the header includes an identifier used to map the plurality of MAC SDUs to a reordering buffer and a sequence number of the MAC PDU, wherein the identifier is common to the plurality of SDUs and a respective reordering buffer is configured per a respective identifier; checking the identifier of the header of the received MAC PDU to identify a reordering buffer; storing the MAC PDU in the reordering buffer identified by the identifier; disassembling the MAC PDU into the plurality of MAC SDUs; and delivering the plurality of MAC SDUs to an upper layer. - View Dependent Claims (30, 31, 32)
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33. A communication device for receiving data in a radio communication system, the method comprising:
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a receiving unit for receiving a medium access control (MAC) protocol data unit (PDU), wherein the MAC PDU includes a header and a payload, wherein the payload includes a plurality of MAC service data units (SDUs) and the header includes an identifier used to map the plurality of MAC SDUs to a reordering buffer and a sequence number of the MAC PDU; a reordering buffer for storing the received MAC PDU; and a processor for; checking the identifier of the header of the received MAC PDU to identify a reordering buffer, storing the MAC PDU in the reordering buffer identified by the identifier, disassembling the MAC PDU into the plurality of MAC SDUs, and delivering the plurality of MAC SDUs to an upper layer, wherein the identifier of the MAC PDU is common to the plurality of SDUs and a respective reordering buffer is configured per a respective identifier. - View Dependent Claims (34, 35, 36)
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Specification