公开(公告)号：AT410850T

公开(公告)日：2008-10-15

申请号：AT98911448

申请日：1998-03-02

Applicant: QUALCOMM INC

Inventor： WOODWARD SCOTT ,  DEJACO ANDREW

IPC: H04J3/14 ,  H04L1/24 ,  H04B7/26 ,  H04B17/00 ,  H04J3/06 ,  H04L69/40 ,  H04M3/22 ,  H04W24/00

Abstract: A method and apparatus for aligning a test signal to a frame interval of a communication system in which an alignment test signal having an alternating pattern of frequencies is generated and transmitted over a communication link that carries the alignment test signal in a sequence of frames. The alignment test signal is received over the communication link as a return alignment test signal and then evaluated for frequency content. The start time of the alignment test signal is adjusted until the frequency content of the return alignment test signal corresponds to the alternating pattern of frequencies.