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Method and apparatus for sub-slot packets in wireless communication

  • US 9,461,736 B2
  • Filed: 02/20/2007
  • Issued: 10/04/2016
  • Est. Priority Date: 02/21/2006
  • Status: Active Grant
First Claim
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1. An apparatus for sub-slot packet communication comprising:

  • a receiver to receive channel information from a remote station, the channel information including ACK/NACK (acknowledgement/negative acknowledgement) information;

    at least one processor configured to;

    generate an output waveform comprising at least one slot, each slot segmented into two half-slots, wherein at least one half-slot includes at least a portion of a packet; and

    interpret the ACK/NACK information to determine if the packet should be resent to the remote station;

    wherein the output waveform is compatible with that of a legacy system based on transmissions on full slots, and wherein at least one half-slot of the output waveform comprises;

    (A) at least one traffic segment, at a center of the half-slot, that carries an integer number of orthogonal frequency division multiplexing (OFDM) data symbols; and

    (B) at least one overhead segment, at the center of the half-slot, that has a duration equal to a duration of said traffic segment and includes a pilot segment;

    a memory coupled to the at least one processor; and

    a transmitter configured for transmitting the output waveform.

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