×

Apparatus and method for asynchronous control message transmission for data retransmission in wireless relay communication system

  • US 8,462,690 B2
  • Filed: 03/31/2008
  • Issued: 06/11/2013
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
Patent Images

1. A retransmission method of a Relay Station (RS) in a wireless relay communication system, the method comprising:

  • receiving data from an upper node;

    determining whether the data contains an error;

    sending a Negative Acknowledgement (NACK) message to the upper node at a time that is not pre-appointed with the upper node, when the data contains an error;

    transmitting the data to a lower node, when the data does not contain an error;

    when a NACK is received from the lower node, forwarding the NACK to the upper node and retransmitting the data to the lower node; and

    when an ACK is received from the lower node, forwarding the ACK to the upper node at a time that is pre-appointed with the upper node.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×