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Dynamic space-time coding for a communication system

  • US 8,320,499 B2
  • Filed: 03/03/2006
  • Issued: 11/27/2012
  • Est. Priority Date: 03/18/2005
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one processor operative to generate at least one data stream and to perform a space-time coding on the at least one data stream in a dynamic manner to generate at least two output streams for transmission from at least two antennas to a terminal, anda memory operatively coupled to the at least one processor;

    wherein performing the space-time coding comprises selecting a set of space-time codes from among multiple sets of space-time codes based on a channel profile from the terminal, wherein the space-time coding further comprises selecting a space-time code after selecting the set by either cycling through multiple space-time codes in the selected set of space-time codes in a cyclic manner or selecting one of the multiple space-time codes from the selected set in a pseudo-random manner;

    wherein each set of space-time codes includes multiple space-time codes;

    wherein each space-time code defines a mapping of symbols to transmit antennas and symbol periods; and

    wherein the channel profile is indicative of long-term characteristics of a wireless channel from the apparatus to the terminal.

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