Patent ID: 6668010
Filing Date: 2003-12-23
Classification: H04B,H04J

Abstract:
A PN code generation apparatus for generating a pseudo random noise PN code sequence of n cycles (n is an integral number more than one) having a synchronization relation with a transmission frame of m cycles (m is an integral number more than one and is not n), said PN code generation apparatus comprising:means for receiving identification information and start timing information of a specific frame out of a plurality of transmission frames; means for generating said PN code sequences wherein said synchronization relation with said transmission frame is started at the start timing of said specific frame; storage means for storing initial data of the PN code sequence corresponding to each of the start timings of said plurality of transmission frames; and said means for generating said PN code sequence includes a PN code generation circuit for generating said PN code sequence by being supplied with initial data, which is read out from said storage means based on said identification information of said specific frame, and said start timing information.