Data transmission method for HSDPA
First Claim
1. A method for processing packet data in a transmitter of a communications system, comprising:
- receiving a data unit from a logical channel;
assembling one or more data units from the logical channel into a single payload;
constructing a data block by attaching a sequence number to the payload;
transmitting the data block to the receiver.
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Accused Products
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.
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Citations
28 Claims
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1. A method for processing packet data in a transmitter of a communications system, comprising:
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receiving a data unit from a logical channel;
assembling one or more data units from the logical channel into a single payload;
constructing a data block by attaching a sequence number to the payload;
transmitting the data block to the receiver. - View Dependent Claims (2, 3)
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4. A method for processing packet data in a receiver of a communications system, comprising:
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establishing a reordering buffer per logical channel;
receiving a data block from a transmitter;
forwarding the data block to the reordering buffer identified by the logical channel identity included in the data block;
determining by the sequence number whether the data block can be delivered;
disassembling the data block into data units if the data block can be delivered;
delivering the disassembled data units to the logical channel associated with the reordering buffer. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A data transmission method of an HSDPA system comprising:
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transmitting, with a transmitter, a Data Block composed of one or more data units originated from a same logical channel;
receiving, with a receiver, the Data Block through a HS-DSCH; and
distributing the Data Block to a predetermined reordering buffer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for processing packet data in a transmitter of a communications system, comprising:
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receiving data units from plural logical channels;
assembling one or more data units from one logical channel into a single payload;
constructing a data block by attaching a sequence number to the payload;
transmitting the data block to the receiver.
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26. A method for processing packet data in a receiver of a communications system, comprising:
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establishing reordering buffers for logical channels respectively;
receiving data blocks from a transmitter;
forwarding the data blocks of same logical channel identity to one of the reordering buffers;
determining by the sequence number of the data blocks whether one of the data block can be delivered;
disassembling the data block into data units if the data block can be delivered;
delivering the disassembled data units to said logical channel. - View Dependent Claims (27, 28)
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Specification