Format for a code division multiple access pilot channel transmission, process for processing a signal, and apparatus for processing a code division multiple access signal

摘要

'' FORMAT FOR A MULTIPLE ACCESS PILOT CHANNEL TRANSMISSION BY CODE DIVISION, PROCESS TO PROCESS A SIGNAL, AND APPLIANCE TO PROCESS A MULTIPLE ACCESS SIGNAL BY CODE DIVISION ''. Each structure of a pilot channel transmission in a spread spectrum communications system is divided into several synchronization modules. Each of the synchronization modules includes a pilot code, and at least one of the synchronization modules additionally includes a structure synchronization code. To extract structure information and synchronization module from the pilot channel transmission, the pilot code timing is first identified by applying a matched filter or correlation to a received pilot signal, identifying peaks, and using the peaks to find a timing reference indicative of synchronization module borders. Next, the set of known structure synchronization codes are correlated to the signal received along the included found synchronization modules. Since the location within the structure of the structure synchronization code (s) is known, since a correlation match is found at a certain module location, the structure boundary (i.e., structure synchronization) ) relative to this is then also known.