A method and a device for adapting data rates

A method and a device for adapting data rates

  • CN 1,808,957 A
  • Filed: 09/19/2000
  • Published: 07/26/2006
  • Est. Priority Date: 10/07/1999
  • Status: Abandoned Application
First Claim
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1. be used for the processor device of data rate, it has●

  • one first interleaver, the data that this first interleaver will transmit are distributed on the framing with the form of bit,●

    be used to carry out a kind of device of repetition methods, this device was designed such that after described interweaving, in each frame, repeat the bit of equal number for carrying out data rate, wherein, in a frame, employed repeat pattern also is applied in other frames of this framing after skew, and wherein need to obtain the bit of repetition by the method that comprises the steps;

    A) utilize following formula to determine the integer part q of described average repeat distance,Wherein Expression rounds up, and Ni and Nc represent after the rate-matched and number of unit before;

    B) select the bit that needs repetition in first row;

    C) last bit that need repeat from previous column, select the bit that then will repeat in the next column in the following manner, promptly only otherwise cause from multiple another bit of a column weight, then always begin also to go out to be spaced apart next bit of q, otherwise just utilize the interval that is different from q to select a bit with reference to original selective sequential from described last bit that need repeat;

    D) repeating step c), up to all repeated a bit once from all row.

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