Patent ID: 7860132

Claim:
A process of determining base station scrambling codes in a WCDMA mobile device comprising: A. receiving in the mobile device first and second synchronization codes in parallel on respective first and second synchronization channels, the first and second synchronization codes occurring in the same symbol time in subsequent slots of frames of received signals; B. determining one of the absence and presence of third synchronization codes on a third synchronization channel, when determining the presence of third synchronization codes, the third synchronization codes occurring in all of the same symbol times as the first and second synchronization codes; C. in response to determining the absence of third synchronization codes, performing frame synchronization and identifying one group of base station scrambling codes from the second synchronization codes; and D. in response to determining the presence of third synchronization codes, performing frame synchronization from the third synchronization codes and identifying one group of base station scrambling codes from the second and third synchronization codes.