Device and method for synchronizing and channel estimation in a TDMA radio communication system

  • US 5,373,507 A
  • Filed: 01/12/1993
  • Issued: 12/13/1994
  • Est. Priority Date: 01/13/1992
  • Status: Expired due to Term
First Claim
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1. A method of channel estimation in a TDMA radio communication system comprising the steps of:

  • calculating a center of energy value w of a first vector having M correlation values between a synchronization sequence and M parts of a signal frame, which are partially overlapping and mutually displaced one sampling interval, substantially in accordance with the formula ##EQU5## where c(k) designates a correlation value in position k in said first vector and M is an integer;

    rounding the value w to a nearest integer to form a preliminary window center position mw in said first vector; and

    choosing N consecutive correlation values distributed around said preliminary window center position mw to form a second vector of N correlation values for channel estimation where N is an integer.

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