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Transmitter control in communication systems

  • US 20100232492A1
  • Filed: 03/10/2009
  • Published: 09/16/2010
  • Est. Priority Date: 03/10/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a first signal from a first lane;

    determining first equalizer settings of a first transmitter of the first signal based in part on clock and data recovery of the first signal, wherein the first equalizer used by the first transmitter is in compliance with one or more of clauses 72.7.1.10 and 72.7.1.11 of IEEE Std 802.3ap-2007;

    requesting adjustment of first equalizer settings using a control channel in compliance with a 10GBASE-KR PMD control function defined in clause 72.6.10 of IEEE Std 802.3ap-2007;

    receiving a second signal from a second lane;

    determining second equalizer settings of a second transmitter of the second signal based in part on clock and data recovery of the second signal; and

    forming a third signal by combining contents of the received first and second signals, whereinan aggregate transmission rate of signals transmitted over the multiple lanes is approximately a number of lanes times a transmission rate specified in 10GBASE-KR of IEEE 802.3ap (2007) andelectrical characteristics of the first and second transmitters are in compliance with clause 72.7.1 of IEEE Std 802.3ap-2007.

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