| 摘要 |
A cell-search method (90) for a cellular communication device (1) capable of communicating via a first radio-access technology, RAT, in a first frequency band (4), and via a second RAT in a second frequency band (7), which is in a higher frequency region than the 5 first frequency band is disclosed. The method comprises performing (110) a first cell search in the first frequency band (4) in order to detect a first cell (2) of the first RAT. The method further comprises, if such a first cell (2) is detected, synchronizing (130) to the first cell (2), without registering to the first cell(2), determining (140) a reference frequency error estimate between a local reference frequency of the cellular communication device (1) and reference 10 frequency of the first cell (2), and thereafter performing (150) a second cell search, based on the reference frequency error estimate, in the second frequency band (7) to detect a second cell (5) of the second RAT. A corresponding cellular communication device (1), computer program product, and computer-readable medium are also disclosed. To be published together with Fig. 3 |
