Method and receiver for improved data packet transfer in a transmission protocol with repeat requests
First Claim
1. Method for the transmission of data packets (D) from a transmitter (TR) to a receiver (RE), wherein defective data packets (D) are detected and a first status message (S1) comprising an indication of defective data packets is sent from the receiver (RE) to the transmitter (TR) and a retransmission of defective data packets is performed according to the first status message (S1), characterized in that the receiver (RE) initializes a timing unit according to the sending of the first status message (S1), the receiver (RE) determines that a further status message (S2) indicating defective data packets is required, defective data packets are selected for the further status message (S2), wherein a defective data packet is selected if it is not indicated in the first status message (S1) or if the timing unit has reached a threshold, indications of the selected data packets are included in the further status message (S2) and the receiver sends the further status message (S2).
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Accused Products
Abstract
In a method for the transmission of data packets (0) from a transmitter (TR) to a receiver (RE), defective data packets (0) are detected and a first status message (81) comprising an indication of defective data packets is sent from the receiver (RE) to the transmitter (TR). A retransmission of defective data packets is performed according to the first status message (S1). The receiver (RE) initializes a timing unit according to the sending of the first status message (S1) and determines later that a further status message (S2) indicating defective data packets is required. Then, defective data packets are selected for the further status message (S2). A defective data packet is selected if it is not indicated in the first status message (S1) or if the timing unit has reached a threshold. Only the indications of the selected data packets are included in the further status message (S2) and the receiver sends the further status message (S2). A receiver and software programs embodying the invention are also described.
50 Citations
19 Claims
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1. Method for the transmission of data packets (D) from a transmitter (TR) to a receiver (RE), wherein defective data packets (D) are detected and a first status message (S1) comprising an indication of defective data packets is sent from the receiver (RE) to the transmitter (TR) and a retransmission of defective data packets is performed according to the first status message (S1), characterized in that
the receiver (RE) initializes a timing unit according to the sending of the first status message (S1), the receiver (RE) determines that a further status message (S2) indicating defective data packets is required, defective data packets are selected for the further status message (S2), wherein a defective data packet is selected if it is not indicated in the first status message (S1) or if the timing unit has reached a threshold, indications of the selected data packets are included in the further status message (S2) and the receiver sends the further status message (S2).
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16. Receiver for a communication system for the transmission of data packets (D), the receiver (RE) comprising a unit (DU) for the detection of defective data packets and a communication unit (CU) to initiate status messages (S) with an indication of defective data packets to a transmitter (TR) in the communication system, characterized in that
the receiver (RE) is provided with a timing unit and adapted to initialize the timing unit according to the initiation of a first status message (S1), the receiver (RE) is provided with a control unit (CT) adapted to determine that a further status message (S2) is required, the receiver (RE) is provided with a unit to select a defective data packet for indication in the further status message (S2) if the data packet is not indicated in the first status message (S1) or if the timing unit has not reached a threshold, the communication unit (CU) initiates the further status message (S2) comprising indications of the selected data packets.
Specification