Use the method for recognizing the re-transmission of the verification sum of lost data packet

Use the method for recognizing the re-transmission of the verification sum of lost data packet

  • CN 102,550,020 B
  • Filed: 10/02/2009
  • Issued: 10/24/2017
  • Est. Priority Date: 10/02/2009
  • Status: Active Grant
First Claim
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1. it is a kind of be used in the case where lacking sequence number retransmitted data packet method, wherein, data transmitter (54) withThe packet is sent in a data frame during the data transfer of session between reception device (56), wherein each frame includes schoolTest and, methods described is characterised by comprising the following steps:

  • Loss of data in the-detection data stream transmitting;

    - determine at least about detect loss of data the verification for having received adjacent data frames with;

    - sent to retransmission server comprising the identidication key for determining to verify sum, it is thus transmitted to verify and constitute schoolTest and sequence, and the identidication key is used to recognize the loss of data by the server;

    - the requested missing data for including at least one data frame is received from the retransmission server;

    - described at least one data frame received, which interweaves, before the data message of the data transfer is presented is connecingReceive in the correct position in data transfer.

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