Please wait...
Please let us know your thoughts on PATENTSCOPE or tell us what you feel is missing or how we could improve it.
Embodiments of the present disclosure provide a method in a base station for random access preamble detection. The method comprises determining a frequency offset of a received uplink signal and adjusting the received uplink signal with the determined frequency offset. The method also comprises detecting, from the adjusted uplink signal, whether there is a random access preamble with a first false alarm value. Additionally, the method may further comprise detecting from the received uplink signal, whether there is a random access preamble with a second false alarm value, before determining the frequency offset of the received uplink signal. Determining the frequency offset of the received uplink signal may be performed in response that a random access preamble is detected with the second false alarm value, the second false alarm value being higher than the first false alarm value.