Patent ID: 8139663
Filing Date: 2012-03-20
Classification: H04L

Abstract:
1. A method of synchronization in a communication system, comprising: generating a signal with a time symmetric property exploitable for synchronization, wherein the signal is based on a uniquely identifiable sequence c(l) from a set of sequences; sending the signal over a communication channel; and, in the step of generating the signal, generating the signal with a centrally symmetric part, s(k), wherein the centrally symmetric part s(k) is centrally symmetric in the shape of the absolute value, and the centrally symmetric part s(k) is of arbitrary length N, and wherein the signal is generated such that s(k) is obtained as an IDFT of a spectrum H(n) of N sub-carrier weights, the spectrum H(n) being generated by using the elements of the sequence c(l), l=0, 1, . . . , L−1, L≦N, as the Fourier coefficients at the occupied sub-carrier frequencies.