Data unit sender and data unit relay device

Data unit sender and data unit relay device

  • CN 101,069,378 B
  • Filed: 09/07/2004
  • Issued: 07/23/2014
  • Est. Priority Date: 08/31/2004
  • Status: Active Grant
First Claim
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1. a data unit sender, comprising:

  • Data cell buffer, for preserving the data cell of communication protocol,Control unit, is arranged to control-described data cell arrives the transmission of the peer-to-peer of described communication protocol,The processing of-the feedback message that receives from described peer-to-peer,The re-transmission of-described data cell based on described feedback message, andThe management of-described buffer,As the transmission peer-to-peer of described communication protocol,Wherein, according to described communication protocol, described data cell is arranged in sequence, and each data cell that sent is that sequence position identifier can identify, and adopt described sequence position identifier, described feedback message carrying is about the information of the reception of described data cell, described communication protocol provides at least reception information of the first kind and Second Type, the reception information of the described first kind shows the correct reception of the data cell on the relaying peer-to-peer of described communication protocol, and the reception information of described Second Type shows the correct reception of the data cell on the final goal peer-to-peer of described communication protocol,Described control unit is set to be sent out but it is not received to the data-oriented unit that the first kind receives in the described buffer of information carries out the first Retransmission control program, receive information if received the first kind for described data-oriented unit, carry out the second Retransmission control program for described data-oriented unit, and at least before the reception information that receives described Second Type for described data-oriented unit, described data-oriented unit is kept in described bufferWherein, the difference of described the second Retransmission control program and described the first Retransmission control program is, described data unit sender can at least temporarily be delegated to the responsibility of the re-transmission of described data-oriented unit the relaying peer-to-peer that sends the described first kind and receive information.

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