Method and apparatus for time efficient retransmission using symbol accumulation
a symbol and accumulation technology, applied in the field of data communication, can solve the problems of erroneous data transmission from remote stations, limited reverse link capacity, excessive interference with other base stations, etc., and achieve the effect of improving the reliability of data transmission, reducing the expenditure of system resources, and reducing the cost of retransmission
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third embodiment
In the third embodiment, the destination device acknowledges only packets which are received in error with the NACK messages. The source device only retransmits a packet if a NACK message is received. The destination device can retransmit the NACK message (e.g., if a retransmission has not been received correctly after a predetermined time period).
IV. Data Retransmission
In the exemplary embodiment, if a packet was received in error, the destination device transmits a NACK message back to the source device. The packet received in error can be retransmitted concurrently with the new packet in the current frame or at a subsequent frame. Preferably, the packet received in error is retransmitted in the current frame to minimize processing delays. In the exemplary embodiment, the retransmitted packet comprises the identical code symbols which were transmitted previously. In the alternative embodiment, the retransmitted packet comprises new code symbols.
A block diagram of an exemplary...
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