Patent ID: 6813257
Filing Date: 2004-11-02
Classification: H04B

Abstract:
A method for controlling transmission of a pseudo noise (PN) code in a code division multiple access (CDMA) communication system, which includes at least one base transceiver station (BTS) and at least one subscriber unit, the method comprising:transmitting, by a first BTS, data representing a first offset that indicates a time when a subscriber unit should search for a PN code in a signal transmitted by a second BTS; generating the PN code, by the second BTS; transmitting, by the second BTS, a modulated signal that includes the PN code at a time specified by a second offset, wherein the second offset specifies a different time than the first offset; delaying modulation and transmission of the PN code by a delay time, wherein the delay time is based on a time-varying path length of a communication path between the second BTS and the subscriber unit; and storing the PN code in a buffer prior to the modulation and transmission, and wherein delaying comprises altering a number of PN code bits in the buffer.