×

Methods and apparatus for multi-carrier communication systems with automatic repeat request (ARQ)

  • US 9,509,451 B2
  • Filed: 07/10/2015
  • Issued: 11/29/2016
  • Est. Priority Date: 01/29/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method for a transmitter with multiple transmission antennas in a wireless communication system, the method comprising:

  • configuring a first subchannel and a second subchannel in the spatial domain for signal transmissions to a receiver in the communication system, the first and second subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

    transmitting concurrently to the receiver, at a first transmission time a first data packet over the first subchannel and a second data packet over the second subchannel;

    receiving a signal from the receiver, the signal indicating an error in the first data packet received by the receiver;

    providing, to the receiver, information regarding a retransmission process for a data packet received in error, the information indicating a use of subchannel swapping for retransmission; and

    transmitting concurrently to the receiver, at a second transmission time, a redundancy version of the first data packet over the second subchannel and a third packet over the first subchannel, the third packet being swapped from transmission over the second subchannel.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×