Patent ID: 6173006
Filing Date: 2001-01-09
Classification: H04B,H04J,H04L,Y02D

Abstract:
A method for scaling a frame-based communications system, the communications system having a base chip rate, a base short code series, and overhead and data channels, the method comprising:selecting a system chip rate that is a multiple of the base chip rate, so that the communication system has a greater data-handling capacity than a system operating at the base chip rate;defining a system short code series that repeats the base short code series the multiple times wherein the frame duration for the communication system remains constant whether the base chip rate or the system chip rate is used;rotating the phase of the overhead and the data channels for a duration each frame, the duration starting at an offset from the end of the frame;resetting the phase of the overhead and the data channels to their nominal phase at the end of the duration, whereby the resulting periodic phase rotation provides a periodic synchronization marker; andsynchronizing a mobile station to the synchronization marker.