Method and a system for transferring AMR signaling frames on halfrate channels

CAFC
  • US 7,817,679 B2
  • Filed: 07/18/2008
  • Issued: 10/19/2010
  • Est. Priority Date: 08/27/2001
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • an encoder configured to output a coded bit stream encoded according to a procedure defined for a global system for mobile communications half rate channel utilizing a gaussian minimum shift keying modulation scheme;

    a repeater configured to be responsive to the encoder and to repeat each bit of the coded bit stream at least two times to generate a repeated bit stream;

    a symbol-former configured to be responsive to said repeater to form symbols to be transmitted from said repeated bit stream, each symbol carrying at least two bits; and

    a transmitter configured to transmit the symbols as an adaptive multi-rate signaling frame for a half rate channel.

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