For the Stochastic accessing defining method of frequency division multiplexing access system

For the Stochastic accessing defining method of frequency division multiplexing access system

  • CN 101,300,756 B
  • Filed: 11/03/2006
  • Issued: 01/20/2016
  • Est. Priority Date: 11/04/2005
  • Status: Active Grant
First Claim
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1. a method for the determination Random Access Channel performed by mobile terminal in OFDMA system, described method comprises the steps:

  • Receiving step, accesses the information of channel about available random from network reception;

    Select step, based on specific threshold or from described network reception to information from described available random access channel, select the set of the Random Access Channel allowed;

    Measuring process, measures the Received signal strength quality of at least one in the community and neighbor cell that will access;

    AndDerivation step, derives the Random Access Channel of permission from the set of the Random Access Channel of described permission based on described measurement, with the maximization of the correct detection by random access sequence and the probability of error detection is minimized,Wherein, each Random Access Channel in the set of the Random Access Channel of described permission comprises M the Random Access Channel tolerance frequency be mapped in T Random Access Channel time migration, S the time migration of every Random Access Channel tolerance frequency of each period definition, wherein, each cycle comprises one or more radio frame, and the time migration of the Random Access Channel derived is determined by following formula;

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